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Diffstat (limited to 'doc/python_api/epy/BGL.py')
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diff --git a/doc/python_api/epy/BGL.py b/doc/python_api/epy/BGL.py deleted file mode 100644 index ce148dc72ba..00000000000 --- a/doc/python_api/epy/BGL.py +++ /dev/null @@ -1,1807 +0,0 @@ -# Blender.BGL module (OpenGL wrapper) - -""" -The Blender.BGL submodule (the OpenGL wrapper). - -B{New}: some GLU functions: L{gluLookAt}, etc. - -The Blender.BGL submodule -========================= -(when accessing it from the Game Engine use BGL instead of Blender.BGL) - -This module wraps OpenGL constants and functions, making them available from -within Blender Python. - -The complete list can be retrieved from the module itself, by listing its -contents: dir(Blender.BGL). A simple search on the net can point to more -than enough material to teach OpenGL programming, from books to many -collections of tutorials. - -The "red book": "I{OpenGL Programming Guide: The Official Guide to Learning -OpenGL}" and the online NeHe tutorials are two of the best resources. - -Example:: - import Blender - from Blender.BGL import * - from Blender import Draw - R = G = B = 0 - A = 1 - title = "Testing BGL + Draw" - instructions = "Use mouse buttons or wheel to change the background color." - quitting = " Press ESC or q to quit." - len1 = Draw.GetStringWidth(title) - len2 = Draw.GetStringWidth(instructions + quitting) - # - def show_win(): - glClearColor(R,G,B,A) # define color used to clear buffers - glClear(GL_COLOR_BUFFER_BIT) # use it to clear the color buffer - glColor3f(0.35,0.18,0.92) # define default color - glBegin(GL_POLYGON) # begin a vertex data list - glVertex2i(165, 158) - glVertex2i(252, 55) - glVertex2i(104, 128) - glEnd() - glColor3f(0.4,0.4,0.4) # change default color - glRecti(40, 96, 60+len1, 113) - glColor3f(1,1,1) - glRasterPos2i(50,100) # move cursor to x = 50, y = 100 - Draw.Text(title) # draw this text there - glRasterPos2i(350,40) # move cursor again - Draw.Text(instructions + quitting) # draw another msg - glBegin(GL_LINE_LOOP) # begin a vertex-data list - glVertex2i(46,92) - glVertex2i(120,92) - glVertex2i(120,115) - glVertex2i(46,115) - glEnd() # close this list - # - def ev(evt, val): # event callback for Draw.Register() - global R,G,B,A # ... it handles input events - if evt == Draw.ESCKEY or evt == Draw.QKEY: - Draw.Exit() # this quits the script - elif not val: return - elif evt == Draw.LEFTMOUSE: R = 1 - R - elif evt == Draw.MIDDLEMOUSE: G = 1 - G - elif evt == Draw.RIGHTMOUSE: B = 1 - B - elif evt == Draw.WHEELUPMOUSE: - R += 0.1 - if R > 1: R = 1 - elif evt == Draw.WHEELDOWNMOUSE: - R -= 0.1 - if R < 0: R = 0 - else: - return # don't redraw if nothing changed - Draw.Redraw(1) # make changes visible. - # - Draw.Register(show_win, ev, None) # start the main loop - -@note: you can use the L{Image} module and L{Image.Image} BPy object to load - and set textures. See L{Image.Image.glLoad} and L{Image.Image.glFree}, - for example. -@see: U{www.opengl.org} -@see: U{nehe.gamedev.net} -""" - -def glAccum(op, value): - """ - Operate on the accumulation buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/accum.html} - - @type op: Enumerated constant - @param op: The accumulation buffer operation. - @type value: float - @param value: a value used in the accumulation buffer operation. - """ - -def glAlphaFunc(func, ref): - """ - Specify the alpha test function - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/alphafunc.html} - - @type func: Enumerated constant - @param func: Specifies the alpha comparison function. - @type ref: float - @param ref: The reference value that incoming alpha values are compared to. - Clamped between 0 and 1. - """ - -def glAreTexturesResident(n, textures, residences): - """ - Determine if textures are loaded in texture memory - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/aretexturesresident.html} - - @type n: int - @param n: Specifies the number of textures to be queried. - @type textures: Buffer object I{type GL_INT} - @param textures: Specifies an array containing the names of the textures to be queried - @type residences: Buffer object I{type GL_INT}(boolean) - @param residences: An array in which the texture residence status in returned.The residence status of a - texture named by an element of textures is returned in the corresponding element of residences. - """ - -def glBegin(mode): - """ - Delimit the vertices of a primitive or a group of like primatives - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/begin.html} - - @type mode: Enumerated constant - @param mode: Specifies the primitive that will be create from vertices between glBegin and - glEnd. - """ - -def glBindTexture(target, texture): - """ - Bind a named texture to a texturing target - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html} - - @type target: Enumerated constant - @param target: Specifies the target to which the texture is bound. - @type texture: unsigned int - @param texture: Specifies the name of a texture. - """ - -def glBitmap(width, height, xorig, yorig, xmove, ymove, bitmap): - """ - Draw a bitmap - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bitmap.html} - - @type width, height: int - @param width, height: Specify the pixel width and height of the bitmap image. - @type xorig, yorig: float - @param xorig, yorig: Specify the location of the origin in the bitmap image. The origin is measured - from the lower left corner of the bitmap, with right and up being the positive axes. - @type xmove, ymove: float - @param xmove, ymove: Specify the x and y offsets to be added to the current raster position after - the bitmap is drawn. - @type bitmap: Buffer object I{type GL_BYTE} - @param bitmap: Specifies the address of the bitmap image. - """ - -def glBlendFunc(sfactor, dfactor): - """ - Specify pixel arithmetic - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/blendfunc.html} - - @type sfactor: Enumerated constant - @param sfactor: Specifies how the red, green, blue, and alpha source blending factors are - computed. - @type dfactor: Enumerated constant - @param dfactor: Specifies how the red, green, blue, and alpha destination blending factors are - computed. - """ - -def glCallList(list): - """ - Execute a display list - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/calllist.html} - - @type list: unsigned int - @param list: Specifies the integer name of the display list to be executed. - """ - -def glCallLists(n, type, lists): - """ - Execute a list of display lists - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/calllists.html} - - @type n: int - @param n: Specifies the number of display lists to be executed. - @type type: Enumerated constant - @param type: Specifies the type of values in lists. - @type lists: Buffer object - @param lists: Specifies the address of an array of name offsets in the display list. - The pointer type is void because the offsets can be bytes, shorts, ints, or floats, - depending on the value of type. - """ - -def glClear(mask): - """ - Clear buffers to preset values - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clear.html} - - @type mask: Enumerated constant(s) - @param mask: Bitwise OR of masks that indicate the buffers to be cleared. - """ - -def glClearAccum(red, green, blue, alpha): - """ - Specify clear values for the accumulation buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearaccum.html} - - @type red, green, blue, alpha: float - @param red, green, blue, alpha: Specify the red, green, blue, and alpha values used when the - accumulation buffer is cleared. The initial values are all 0. - """ - -def glClearColor(red, green, blue, alpha): - """ - Specify clear values for the color buffers - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearcolor.html} - - @type red, green, blue, alpha: float - @param red, green, blue, alpha: Specify the red, green, blue, and alpha values used when the - color buffers are cleared. The initial values are all 0. - """ - -def glClearDepth(depth): - """ - Specify the clear value for the depth buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/cleardepth.html} - - @type depth: int - @param depth: Specifies the depth value used when the depth buffer is cleared. - The initial value is 1. - """ - -def glClearIndex(c): - """ - Specify the clear value for the color index buffers - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearindex.html} - - @type c: float - @param c: Specifies the index used when the color index buffers are cleared. - The initial value is 0. - """ - -def glClearStencil(s): - """ - Specify the clear value for the stencil buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearstencil.html} - - @type s: int - @param s: Specifies the index used when the stencil buffer is cleared. The initial value is 0. - """ - -def glClipPlane (plane, equation): - """ - Specify a plane against which all geometry is clipped - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clipplane.html} - - @type plane: Enumerated constant - @param plane: Specifies which clipping plane is being positioned. - @type equation: Buffer object I{type GL_FLOAT}(double) - @param equation: Specifies the address of an array of four double- precision floating-point - values. These values are interpreted as a plane equation. - """ - -def glColor (red, green, blue, alpha): - """ - B{glColor3b, glColor3d, glColor3f, glColor3i, glColor3s, glColor3ub, glColor3ui, glColor3us, - glColor4b, glColor4d, glColor4f, glColor4i, glColor4s, glColor4ub, glColor4ui, glColor4us, - glColor3bv, glColor3dv, glColor3fv, glColor3iv, glColor3sv, glColor3ubv, glColor3uiv, - glColor3usv, glColor4bv, glColor4dv, glColor4fv, glColor4iv, glColor4sv, glColor4ubv, - glColor4uiv, glColor4usv} - - Set a new color. - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/color.html} - - @type red, green, blue, alpha: Depends on function prototype. - @param red, green, blue: Specify new red, green, and blue values for the current color. - @param alpha: Specifies a new alpha value for the current color. Included only in the - four-argument glColor4 commands. (With '4' colors only) - """ - -def glColorMask(red, green, blue, alpha): - """ - Enable and disable writing of frame buffer color components - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/colormask.html} - - @type red, green, blue, alpha: int (boolean) - @param red, green, blue, alpha: Specify whether red, green, blue, and alpha can or cannot be - written into the frame buffer. The initial values are all GL_TRUE, indicating that the - color components can be written. - """ - -def glColorMaterial(face, mode): - """ - Cause a material color to track the current color - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/colormaterial.html} - - @type face: Enumerated constant - @param face: Specifies whether front, back, or both front and back material parameters should - track the current color. - @type mode: Enumerated constant - @param mode: Specifies which of several material parameters track the current color. - """ - -def glCopyPixels(x, y, width, height, type): - """ - Copy pixels in the frame buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/copypixels.html} - - @type x, y: int - @param x, y: Specify the window coordinates of the lower left corner of the rectangular - region of pixels to be copied. - @type width, height: int - @param width,height: Specify the dimensions of the rectangular region of pixels to be copied. - Both must be non-negative. - @type type: Enumerated constant - @param type: Specifies whether color values, depth values, or stencil values are to be copied. - """ - - def glCopyTexImage2D(target, level, internalformat, x, y, width, height, border): - """ - Copy pixels into a 2D texture image - @see: U{www.opengl.org/sdk/docs/man/xhtml/glCopyTexImage2D.xml} - - @type target: Enumerated constant - @param target: Specifies the target texture. - @type level: int - @param level: Specifies the level-of-detail number. Level 0 is the base image level. - Level n is the nth mipmap reduction image. - @type internalformat: int - @param internalformat: Specifies the number of color components in the texture. - @type width: int - @type x, y: int - @param x, y:Specify the window coordinates of the first pixel that is copied - from the frame buffer. This location is the lower left corner of a rectangular - block of pixels. - @param width: Specifies the width of the texture image. Must be 2n+2(border) for - some integer n. All implementations support texture images that are at least 64 - texels wide. - @type height: int - @param height: Specifies the height of the texture image. Must be 2m+2(border) for - some integer m. All implementations support texture images that are at least 64 - texels high. - @type border: int - @param border: Specifies the width of the border. Must be either 0 or 1. - """ - -def glCullFace(mode): - """ - Specify whether front- or back-facing facets can be culled - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/cullface.html} - - @type mode: Enumerated constant - @param mode: Specifies whether front- or back-facing facets are candidates for culling. - """ - -def glDeleteLists(list, range): - """ - Delete a contiguous group of display lists - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/deletelists.html} - - @type list: unsigned int - @param list: Specifies the integer name of the first display list to delete - @type range: int - @param range: Specifies the number of display lists to delete - """ - -def glDeleteTextures(n, textures): - """ - Delete named textures - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/deletetextures.html} - - @type n: int - @param n: Specifies the number of textures to be deleted - @type textures: Buffer I{GL_INT} - @param textures: Specifies an array of textures to be deleted - """ - -def glDepthFunc(func): - """ - Specify the value used for depth buffer comparisons - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/depthfunc.html} - - @type func: Enumerated constant - @param func: Specifies the depth comparison function. - """ - -def glDepthMask(flag): - """ - Enable or disable writing into the depth buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/depthmask.html} - - @type flag: int (boolean) - @param flag: Specifies whether the depth buffer is enabled for writing. If flag is GL_FALSE, - depth buffer writing is disabled. Otherwise, it is enabled. Initially, depth buffer - writing is enabled. - """ - -def glDepthRange(zNear, zFar): - """ - Specify mapping of depth values from normalized device coordinates to window coordinates - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/depthrange.html} - - @type zNear: int - @param zNear: Specifies the mapping of the near clipping plane to window coordinates. - The initial value is 0. - @type zFar: int - @param zFar: Specifies the mapping of the far clipping plane to window coordinates. - The initial value is 1. - """ - -def glDisable(cap): - """ - Disable server-side GL capabilities - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html} - - @type cap: Enumerated constant - @param cap: Specifies a symbolic constant indicating a GL capability. - """ - -def glDrawBuffer(mode): - """ - Specify which color buffers are to be drawn into - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/drawbuffer.html} - - @type mode: Enumerated constant - @param mode: Specifies up to four color buffers to be drawn into. - """ - -def glDrawPixels(width, height, format, type, pixels): - """ - Write a block of pixels to the frame buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/drawpixels.html} - - @type width, height: int - @param width, height: Specify the dimensions of the pixel rectangle to be - written into the frame buffer. - @type format: Enumerated constant - @param format: Specifies the format of the pixel data. - @type type: Enumerated constant - @param type: Specifies the data type for pixels. - @type pixels: Buffer object - @param pixels: Specifies a pointer to the pixel data. - """ - -def glEdgeFlag (flag): - """ - B{glEdgeFlag, glEdgeFlagv} - - Flag edges as either boundary or non-boundary - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/edgeflag.html} - - @type flag: Depends of function prototype - @param flag: Specifies the current edge flag value.The initial value is GL_TRUE. - """ - -def glEnable(cap): - """ - Enable server-side GL capabilities - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html} - - @type cap: Enumerated constant - @param cap: Specifies a symbolic constant indicating a GL capability. - """ - -def glEnd(): - """ - Delimit the vertices of a primitive or group of like primitives - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/begin.html} - """ - -def glEndList(): - """ - Create or replace a display list - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/newlist.html} - """ - -def glEvalCoord (u,v): - """ - B{glEvalCoord1d, glEvalCoord1f, glEvalCoord2d, glEvalCoord2f, glEvalCoord1dv, glEvalCoord1fv, - glEvalCoord2dv, glEvalCoord2fv} - - Evaluate enabled one- and two-dimensional maps - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/evalcoord.html} - - @type u: Depends on function prototype. - @param u: Specifies a value that is the domain coordinate u to the basis function defined - in a previous glMap1 or glMap2 command. If the function prototype ends in 'v' then - u specifies a pointer to an array containing either one or two domain coordinates. The first - coordinate is u. The second coordinate is v, which is present only in glEvalCoord2 versions. - @type v: Depends on function prototype. (only with '2' prototypes) - @param v: Specifies a value that is the domain coordinate v to the basis function defined - in a previous glMap2 command. This argument is not present in a glEvalCoord1 command. - """ - -def glEvalMesh (mode, i1, i2): - """ - B{glEvalMesh1 or glEvalMesh2} - - Compute a one- or two-dimensional grid of points or lines - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/evalmesh.html} - - @type mode: Enumerated constant - @param mode: In glEvalMesh1, specifies whether to compute a one-dimensional - mesh of points or lines. - @type i1, i2: int - @param i1, i2: Specify the first and last integer values for the grid domain variable i. - """ - -def glEvalPoint (i, j): - """ - B{glEvalPoint1 and glEvalPoint2} - - Generate and evaluate a single point in a mesh - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/evalpoint.html} - - @type i: int - @param i: Specifies the integer value for grid domain variable i. - @type j: int (only with '2' prototypes) - @param j: Specifies the integer value for grid domain variable j (glEvalPoint2 only). - """ - -def glFeedbackBuffer (size, type, buffer): - """ - Controls feedback mode - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/feedbackbuffer.html} - - @type size: int - @param size:Specifies the maximum number of values that can be written into buffer. - @type type: Enumerated constant - @param type:Specifies a symbolic constant that describes the information that - will be returned for each vertex. - @type buffer: Buffer object I{GL_FLOAT} - @param buffer: Returns the feedback data. - """ - -def glFinish(): - """ - Block until all GL execution is complete - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/finish.html} - """ - -def glFlush(): - """ - Force Execution of GL commands in finite time - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/flush.html} - """ - -def glFog (pname, param): - """ - B{glFogf, glFogi, glFogfv, glFogiv} - - Specify fog parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/fog.html} - - @type pname: Enumerated constant - @param pname: Specifies a single-valued fog parameter. If the function prototype - ends in 'v' specifies a fog parameter. - @type param: Depends on function prototype. - @param param: Specifies the value or values to be assigned to pname. GL_FOG_COLOR - requires an array of four values. All other parameters accept an array containing - only a single value. - """ - -def glFrontFace(mode): - """ - Define front- and back-facing polygons - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/frontface.html} - - @type mode: Enumerated constant - @param mode: Specifies the orientation of front-facing polygons. - """ - -def glFrustum(left, right, bottom, top, zNear, zFar): - """ - Multiply the current matrix by a perspective matrix - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/frustum.html} - - @type left, right: double (float) - @param left, right: Specify the coordinates for the left and right vertical - clipping planes. - @type top, bottom: double (float) - @param top, bottom: Specify the coordinates for the bottom and top horizontal - clipping planes. - @type zNear, zFar: double (float) - @param zNear, zFar: Specify the distances to the near and far depth clipping planes. - Both distances must be positive. - """ - -def glGenLists(range): - """ - Generate a contiguous set of empty display lists - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/genlists.html} - - @type range: int - @param range: Specifies the number of contiguous empty display lists to be generated. - """ - -def glGenTextures(n, textures): - """ - Generate texture names - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gentextures.html} - - @type n: int - @param n: Specifies the number of textures name to be generated. - @type textures: Buffer object I{type GL_INT} - @param textures: Specifies an array in which the generated textures names are stored. - """ - -def glGet (pname, param): - """ - B{glGetBooleanv, glGetfloatv, glGetFloatv, glGetIntegerv} - - Return the value or values of a selected parameter - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/get.html} - - @type pname: Enumerated constant - @param pname: Specifies the parameter value to be returned. - @type param: Depends on function prototype. - @param param: Returns the value or values of the specified parameter. - """ - -def glGetClipPlane(plane, equation): - """ - Return the coefficients of the specified clipping plane - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/getclipplane.html} - - @type plane: Enumerated constant - @param plane: Specifies a clipping plane. The number of clipping planes depends on the - implementation, but at least six clipping planes are supported. They are identified by - symbolic names of the form GL_CLIP_PLANEi where 0 < i < GL_MAX_CLIP_PLANES. - @type equation: Buffer object I{type GL_FLOAT} - @param equation: Returns four float (double)-precision values that are the coefficients of the - plane equation of plane in eye coordinates. The initial value is (0, 0, 0, 0). - """ - -def glGetError(): - """ - Return error information - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/geterror.html} - """ - -def glGetLight (light, pname, params): - """ - B{glGetLightfv and glGetLightiv} - - Return light source parameter values - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/getlight.html} - - @type light: Enumerated constant - @param light: Specifies a light source. The number of possible lights depends on the - implementation, but at least eight lights are supported. They are identified by symbolic - names of the form GL_LIGHTi where 0 < i < GL_MAX_LIGHTS. - @type pname: Enumerated constant - @param pname: Specifies a light source parameter for light. - @type params: Buffer object. Depends on function prototype. - @param params: Returns the requested data. - """ - -def glGetMap (target, query, v): - """ - B{glGetMapdv, glGetMapfv, glGetMapiv} - - Return evaluator parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/getmap.html} - - @type target: Enumerated constant - @param target: Specifies the symbolic name of a map. - @type query: Enumerated constant - @param query: Specifies which parameter to return. - @type v: Buffer object. Depends on function prototype. - @param v: Returns the requested data. - """ - -def glGetMaterial (face, pname, params): - """ - B{glGetMaterialfv, glGetMaterialiv} - - Return material parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/getmaterial.html} - - @type face: Enumerated constant - @param face: Specifies which of the two materials is being queried. - representing the front and back materials, respectively. - @type pname: Enumerated constant - @param pname: Specifies the material parameter to return. - @type params: Buffer object. Depends on function prototype. - @param params: Returns the requested data. - """ - -def glGetPixelMap (map, values): - """ - B{glGetPixelMapfv, glGetPixelMapuiv, glGetPixelMapusv} - - Return the specified pixel map - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/getpixelmap.html} - - @type map: Enumerated constant - @param map: Specifies the name of the pixel map to return. - @type values: Buffer object. Depends on function prototype. - @param values: Returns the pixel map contents. - """ - -def glGetPolygonStipple(mask): - """ - Return the polygon stipple pattern - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/getpolygonstipple.html} - - @type mask: Buffer object I{type GL_BYTE} - @param mask: Returns the stipple pattern. The initial value is all 1's. - """ - -def glGetString(name): - """ - Return a string describing the current GL connection - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/getstring.html} - - @type name: Enumerated constant - @param name: Specifies a symbolic constant. - - """ - -def glGetTexEnv (target, pname, params): - """ - B{glGetTexEnvfv, glGetTexEnviv} - - Return texture environment parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gettexenv.html} - - @type target: Enumerated constant - @param target: Specifies a texture environment. Must be GL_TEXTURE_ENV. - @type pname: Enumerated constant - @param pname: Specifies the symbolic name of a texture environment parameter. - @type params: Buffer object. Depends on function prototype. - @param params: Returns the requested data. - """ - -def glGetTexGen (coord, pname, params): - """ - B{glGetTexGendv, glGetTexGenfv, glGetTexGeniv} - - Return texture coordinate generation parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gettexgen.html} - - @type coord: Enumerated constant - @param coord: Specifies a texture coordinate. - @type pname: Enumerated constant - @param pname: Specifies the symbolic name of the value(s) to be returned. - @type params: Buffer object. Depends on function prototype. - @param params: Returns the requested data. - """ - -def glGetTexImage(target, level, format, type, pixels): - """ - Return a texture image - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/getteximage.html} - - @type target: Enumerated constant - @param target: Specifies which texture is to be obtained. - @type level: int - @param level: Specifies the level-of-detail number of the desired image. - Level 0 is the base image level. Level n is the nth mipmap reduction image. - @type format: Enumerated constant - @param format: Specifies a pixel format for the returned data. - @type type: Enumerated constant - @param type: Specifies a pixel type for the returned data. - @type pixels: Buffer object. - @param pixels: Returns the texture image. Should be a pointer to an array of the - type specified by type - """ - -def glGetTexLevelParameter (target, level, pname, params): - """ - B{glGetTexLevelParameterfv, glGetTexLevelParameteriv} - - return texture parameter values for a specific level of detail - @see: U{opengl.org/developers/documentation/man_pages/hardcopy/GL/html/gl/gettexlevelparameter.html} - - @type target: Enumerated constant - @param target: Specifies the symbolic name of the target texture. - @type level: int - @param level: Specifies the level-of-detail number of the desired image. - Level 0 is the base image level. Level n is the nth mipmap reduction image. - @type pname: Enumerated constant - @param pname: Specifies the symbolic name of a texture parameter. - @type params: Buffer object. Depends on function prototype. - @param params: Returns the requested data. - """ - -def glGetTexParameter (target, pname, params): - """ - B{glGetTexParameterfv, glGetTexParameteriv} - - Return texture parameter values - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gettexparameter.html} - - @type target: Enumerated constant - @param target: Specifies the symbolic name of the target texture. - @type pname: Enumerated constant - @param pname: Specifies the symbolic name the target texture. - @type params: Buffer object. Depends on function prototype. - @param params: Returns the texture parameters. - """ - -def glHint(target, mode): - """ - Specify implementation-specific hints - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/hint.html} - - @type target: Enumerated constant - @param target: Specifies a symbolic constant indicating the behavior to be - controlled. - @type mode: Enumerated constant - @param mode: Specifies a symbolic constant indicating the desired behavior. - """ - -def glIndex (c): - """ - B{glIndexd, glIndexf, glIndexi, glIndexs, glIndexdv, glIndexfv, glIndexiv, glIndexsv} - - Set the current color index - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/index_.html} - - @type c: Buffer object. Depends on function prototype. - @param c: Specifies a pointer to a one element array that contains the new value for - the current color index. - """ - -def glInitNames(): - """ - Initialize the name stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/initnames.html} - """ - -def glIsEnabled(cap): - """ - Test whether a capability is enabled - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/isenabled.html} - - @type cap: Enumerated constant - @param cap: Specifies a constant representing a GL capability. - """ - -def glIsList(list): - """ - Determine if a name corresponds to a display-list - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/islist.html} - - @type list: unsigned int - @param list: Specifies a potential display-list name. - """ - -def glIsTexture(texture): - """ - Determine if a name corresponds to a texture - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/istexture.html} - - @type texture: unsigned int - @param texture: Specifies a value that may be the name of a texture. - """ - -def glLight (light, pname, param): - """ - B{glLightf,glLighti, glLightfv, glLightiv} - - Set the light source parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/light.html} - - @type light: Enumerated constant - @param light: Specifies a light. The number of lights depends on the implementation, - but at least eight lights are supported. They are identified by symbolic names of the - form GL_LIGHTi where 0 < i < GL_MAX_LIGHTS. - @type pname: Enumerated constant - @param pname: Specifies a single-valued light source parameter for light. - @type param: Depends on function prototype. - @param param: Specifies the value that parameter pname of light source light will be set to. - If function prototype ends in 'v' specifies a pointer to the value or values that - parameter pname of light source light will be set to. - """ - -def glLightModel (pname, param): - """ - B{glLightModelf, glLightModeli, glLightModelfv, glLightModeliv} - - Set the lighting model parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/lightmodel.html} - - @type pname: Enumerated constant - @param pname: Specifies a single-value light model parameter. - @type param: Depends on function prototype. - @param param: Specifies the value that param will be set to. If function prototype ends in 'v' - specifies a pointer to the value or values that param will be set to. - """ - -def glLineStipple(factor, pattern): - """ - Specify the line stipple pattern - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/linestipple.html} - - @type factor: int - @param factor: Specifies a multiplier for each bit in the line stipple pattern. - If factor is 3, for example, each bit in the pattern is used three times before - the next bit in the pattern is used. factor is clamped to the range [1, 256] and - defaults to 1. - @type pattern: unsigned short int - @param pattern: Specifies a 16-bit integer whose bit pattern determines which fragments - of a line will be drawn when the line is rasterized. Bit zero is used first; the default - pattern is all 1's. - """ - -def glLineWidth(width): - """ - Specify the width of rasterized lines. - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/linewidth.html} - - @type width: float - @param width: Specifies the width of rasterized lines. The initial value is 1. - """ - -def glListBase(base): - """ - Set the display-list base for glCallLists - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/listbase.html} - - @type base: unsigned int - @param base: Specifies an integer offset that will be added to glCallLists - offsets to generate display-list names. The initial value is 0. - """ - -def glLoadIdentity(): - """ - Replace the current matrix with the identity matrix - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/loadidentity.html} - """ - -def glLoadMatrix (m): - """ - B{glLoadMatrixd, glLoadMatixf} - - Replace the current matrix with the specified matrix - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/loadmatrix.html} - - @type m: Buffer object. Depends on function prototype. - @param m: Specifies a pointer to 16 consecutive values, which are used as the elements - of a 4x4 column-major matrix. - """ - -def glLoadName(name): - """ - Load a name onto the name stack. - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/loadname.html} - - @type name: unsigned int - @param name: Specifies a name that will replace the top value on the name stack. - """ - -def glLogicOp(opcode): - """ - Specify a logical pixel operation for color index rendering - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/logicop.html} - - @type opcode: Enumerated constant - @param opcode: Specifies a symbolic constant that selects a logical operation. - """ - -def glMap1 (target, u1, u2, stride, order, points): - """ - B{glMap1d, glMap1f} - - Define a one-dimensional evaluator - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/map1.html} - - @type target: Enumerated constant - @param target: Specifies the kind of values that are generated by the evaluator. - @type u1, u2: Depends on function prototype. - @param u1,u2: Specify a linear mapping of u, as presented to glEvalCoord1, to ^, t - he variable that is evaluated by the equations specified by this command. - @type stride: int - @param stride: Specifies the number of floats or float (double)s between the beginning - of one control point and the beginning of the next one in the data structure - referenced in points. This allows control points to be embedded in arbitrary data - structures. The only constraint is that the values for a particular control point must - occupy contiguous memory locations. - @type order: int - @param order: Specifies the number of control points. Must be positive. - @type points: Buffer object. Depends on function prototype. - @param points: Specifies a pointer to the array of control points. - """ - -def glMap2 (target, u1, u2, ustride, uorder, v1, v2, vstride, vorder, points): - """ - B{glMap2d, glMap2f} - - Define a two-dimensional evaluator - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/map2.html} - - @type target: Enumerated constant - @param target: Specifies the kind of values that are generated by the evaluator. - @type u1, u2: Depends on function prototype. - @param u1,u2: Specify a linear mapping of u, as presented to glEvalCoord2, to ^, t - he variable that is evaluated by the equations specified by this command. Initially - u1 is 0 and u2 is 1. - @type ustride: int - @param ustride: Specifies the number of floats or float (double)s between the beginning - of control point R and the beginning of control point R ij, where i and j are the u - and v control point indices, respectively. This allows control points to be embedded - in arbitrary data structures. The only constraint is that the values for a particular - control point must occupy contiguous memory locations. The initial value of ustride is 0. - @type uorder: int - @param uorder: Specifies the dimension of the control point array in the u axis. - Must be positive. The initial value is 1. - @type v1, v2: Depends on function prototype. - @param v1, v2: Specify a linear mapping of v, as presented to glEvalCoord2, to ^, - one of the two variables that are evaluated by the equations specified by this command. - Initially, v1 is 0 and v2 is 1. - @type vstride: int - @param vstride: Specifies the number of floats or float (double)s between the beginning of control - point R and the beginning of control point R ij, where i and j are the u and v control - point(indices, respectively. This allows control points to be embedded in arbitrary data - structures. The only constraint is that the values for a particular control point must - occupy contiguous memory locations. The initial value of vstride is 0. - @type vorder: int - @param vorder: Specifies the dimension of the control point array in the v axis. - Must be positive. The initial value is 1. - @type points: Buffer object. Depends on function prototype. - @param points: Specifies a pointer to the array of control points. - """ - -def glMapGrid (un, u1,u2 ,vn, v1, v2): - """ - B{glMapGrid1d, glMapGrid1f, glMapGrid2d, glMapGrid2f} - - Define a one- or two-dimensional mesh - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/mapgrid.html} - - @type un: int - @param un: Specifies the number of partitions in the grid range interval - [u1, u2]. Must be positive. - @type u1, u2: Depends on function prototype. - @param u1, u2: Specify the mappings for integer grid domain values i=0 and i=un. - @type vn: int - @param vn: Specifies the number of partitions in the grid range interval [v1, v2] - (glMapGrid2 only). - @type v1, v2: Depends on function prototype. - @param v1, v2: Specify the mappings for integer grid domain values j=0 and j=vn - (glMapGrid2 only). - """ - -def glMaterial (face, pname, params): - """ - Specify material parameters for the lighting model. - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/material.html} - - @type face: Enumerated constant - @param face: Specifies which face or faces are being updated. Must be one of: - @type pname: Enumerated constant - @param pname: Specifies the single-valued material parameter of the face - or faces that is being updated. Must be GL_SHININESS. - @type params: int - @param params: Specifies the value that parameter GL_SHININESS will be set to. - If function prototype ends in 'v' specifies a pointer to the value or values that - pname will be set to. - """ - -def glMatrixMode(mode): - """ - Specify which matrix is the current matrix. - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/matrixmode.html} - - @type mode: Enumerated constant - @param mode: Specifies which matrix stack is the target for subsequent matrix operations. - """ - -def glMultMatrix (m): - """ - B{glMultMatrixd, glMultMatrixf} - - Multiply the current matrix with the specified matrix - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/multmatrix.html} - - @type m: Buffer object. Depends on function prototype. - @param m: Points to 16 consecutive values that are used as the elements of a 4x4 column - major matrix. - """ - -def glNewList(list, mode): - """ - Create or replace a display list - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/newlist.html} - - @type list: unsigned int - @param list: Specifies the display list name - @type mode: Enumerated constant - @param mode: Specifies the compilation mode. - """ - -def glNormal3 (nx, ny, nz, v): - """ - B{Normal3b, Normal3bv, Normal3d, Normal3dv, Normal3f, Normal3fv, Normal3i, Normal3iv, - Normal3s, Normal3sv} - - Set the current normal vector - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/normal.html} - - @type nx, ny, nz: Depends on function prototype. (non - 'v' prototypes only) - @param nx, ny, nz: Specify the x, y, and z coordinates of the new current normal. - The initial value of the current normal is the unit vector, (0, 0, 1). - @type v: Buffer object. Depends on function prototype. ('v' prototypes) - @param v: Specifies a pointer to an array of three elements: the x, y, and z coordinates - of the new current normal. - """ - -def glOrtho(left, right, bottom, top, zNear, zFar): - """ - Multiply the current matrix with an orthographic matrix - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/ortho.html} - - @type left, right: double (float) - @param left, right: Specify the coordinates for the left and - right vertical clipping planes. - @type bottom, top: double (float) - @param bottom, top: Specify the coordinates for the bottom and top - horizontal clipping planes. - @type zNear, zFar: double (float) - @param zNear, zFar: Specify the distances to the nearer and farther - depth clipping planes. These values are negative if the plane is to be behind the viewer. - """ - -def glPassThrough(token): - """ - Place a marker in the feedback buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/passthrough.html} - - @type token: float - @param token: Specifies a marker value to be placed in the feedback - buffer following a GL_PASS_THROUGH_TOKEN. - """ - -def glPixelMap (map, mapsize, values): - """ - B{glPixelMapfv, glPixelMapuiv, glPixelMapusv} - - Set up pixel transfer maps - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pixelmap.html} - - @type map: Enumerated constant - @param map: Specifies a symbolic map name. - @type mapsize: int - @param mapsize: Specifies the size of the map being defined. - @type values: Buffer object. Depends on function prototype. - @param values: Specifies an array of mapsize values. - """ - -def glPixelStore (pname, param): - """ - B{glPixelStoref, glPixelStorei} - - Set pixel storage modes - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pixelstore.html} - - @type pname: Enumerated constant - @param pname: Specifies the symbolic name of the parameter to be set. - Six values affect the packing of pixel data into memory. - Six more affect the unpacking of pixel data from memory. - @type param: Depends on function prototype. - @param param: Specifies the value that pname is set to. - """ - -def glPixelTransfer (pname, param): - """ - B{glPixelTransferf, glPixelTransferi} - - Set pixel transfer modes - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pixeltransfer.html} - - @type pname: Enumerated constant - @param pname: Specifies the symbolic name of the pixel transfer parameter to be set. - @type param: Depends on function prototype. - @param param: Specifies the value that pname is set to. - """ - -def glPixelZoom(xfactor, yfactor): - """ - Specify the pixel zoom factors - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pixelzoom.html} - - @type xfactor, yfactor: float - @param xfactor, yfactor: Specify the x and y zoom factors for pixel write operations. - """ - -def glPointSize(size): - """ - Specify the diameter of rasterized points - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pointsize.html} - - @type size: float - @param size: Specifies the diameter of rasterized points. The initial value is 1. - """ - -def glPolygonMode(face, mode): - """ - Select a polygon rasterization mode - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/polygonmode.html} - - @type face: Enumerated constant - @param face: Specifies the polygons that mode applies to. - Must be GL_FRONT for front-facing polygons, GL_BACK for back- facing polygons, - or GL_FRONT_AND_BACK for front- and back-facing polygons. - @type mode: Enumerated constant - @param mode: Specifies how polygons will be rasterized. - The initial value is GL_FILL for both front- and back- facing polygons. - """ - -def glPolygonOffset(factor, units): - """ - Set the scale and units used to calculate depth values - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/polygonoffset.html} - - @type factor: float - @param factor: Specifies a scale factor that is used to create a variable depth - offset for each polygon. The initial value is 0. - @type units: float - @param units: Is multiplied by an implementation-specific value to create a constant - depth offset. The initial value is 0. - """ - -def glPolygonStipple(mask): - """ - Set the polygon stippling pattern - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/polygonstipple.html} - - @type mask: Buffer object I{type GL_BYTE} - @param mask: Specifies a pointer to a 32x32 stipple pattern that will be unpacked - from memory in the same way that glDrawPixels unpacks pixels. - """ - -def glPopAttrib(): - """ - Pop the server attribute stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pushattrib.html} - """ - -def glPopClientAttrib(): - """ - Pop the client attribute stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pushclientattrib.html} - """ - -def glPopMatrix(): - """ - Pop the current matrix stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pushmatrix.html} - """ - -def glPopName(): - """ - Pop the name stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pushname.html} - """ - -def glPrioritizeTextures(n, textures, priorities): - """ - Set texture residence priority - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/prioritizetextures.html} - - @type n: int - @param n:Specifies the number of textures to be prioritized. - @type textures: Buffer I{type GL_INT} - @param textures: Specifies an array containing the names of the textures to be prioritized. - @type priorities: Buffer I{type GL_FLOAT} - @param priorities: Specifies an array containing the texture priorities. A priority given - in an element of priorities applies to the texture named by the corresponding element of textures. - """ - -def glPushAttrib(mask): - """ - Push the server attribute stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pushattrib.html} - - @type mask: Enumerated constant(s) - @param mask: Specifies a mask that indicates which attributes to save. - """ - -def glPushClientAttrib(mask): - """ - Push the client attribute stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pushclientattrib.html} - - @type mask: Enumerated constant(s) - @param mask: Specifies a mask that indicates which attributes to save. - """ - -def glPushMatrix(): - """ - Push the current matrix stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pushmatrix.html} - """ - -def glPushName(name): - """ - Push the name stack - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/pushname.html} - - @type name: unsigned int - @param name: Specifies a name that will be pushed onto the name stack. - """ - -def glRasterPos (x,y,z,w): - """ - B{glRasterPos2d, glRasterPos2f, glRasterPos2i, glRasterPos2s, glRasterPos3d, - glRasterPos3f, glRasterPos3i, glRasterPos3s, glRasterPos4d, glRasterPos4f, - glRasterPos4i, glRasterPos4s, glRasterPos2dv, glRasterPos2fv, glRasterPos2iv, - glRasterPos2sv, glRasterPos3dv, glRasterPos3fv, glRasterPos3iv, glRasterPos3sv, - glRasterPos4dv, glRasterPos4fv, glRasterPos4iv, glRasterPos4sv} - - Specify the raster position for pixel operations - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/rasterpos.html} - - @type x, y, z, w: Depends on function prototype. (z and w for '3' and '4' prototypes only) - @param x, y, z, w: Specify the x,y,z, and w object coordinates (if present) for the - raster position. If function prototype ends in 'v' specifies a pointer to an array of two, - three, or four elements, specifying x, y, z, and w coordinates, respectively. - @note: - If you are drawing to the 3d view with a Scriptlink of a space handler - the zoom level of the panels will scale the glRasterPos by the view matrix. - so a X of 10 will not always offset 10 pixels as you would expect. - - To work around this get the scale value of the view matrix and use it to scale your pixel values. - - Workaround:: - - import Blender - from Blender.BGL import * - xval, yval= 100, 40 - # Get the scale of the view matrix - viewMatrix = Buffer(GL_FLOAT, 16) - glGetFloatv(GL_MODELVIEW_MATRIX, viewMatrix) - f = 1/viewMatrix[0] - glRasterPos2f(xval*f, yval*f) # Instead of the usual glRasterPos2i(xval, yval) - """ - -def glReadBuffer(mode): - """ - Select a color buffer source for pixels. - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/readbuffer.html} - - @type mode: Enumerated constant - @param mode: Specifies a color buffer. - """ - -def glReadPixels(x, y, width, height, format, type, pixels): - """ - Read a block of pixels from the frame buffer - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/readpixels.html} - - @type x, y: int - @param x, y:Specify the window coordinates of the first pixel that is read - from the frame buffer. This location is the lower left corner of a rectangular - block of pixels. - @type width, height: int - @param width, height: Specify the dimensions of the pixel rectangle. width and - height of one correspond to a single pixel. - @type format: Enumerated constant - @param format: Specifies the format of the pixel data. - @type type: Enumerated constant - @param type: Specifies the data type of the pixel data. - @type pixels: Buffer object - @param pixels: Returns the pixel data. - """ - -def glRect (x1,y1,x2,y2,v1,v2): - """ - B{glRectd, glRectf, glRecti, glRects, glRectdv, glRectfv, glRectiv, glRectsv} - - Draw a rectangle - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/rect.html} - - @type x1, y1: Depends on function prototype. (for non 'v' prototypes only) - @param x1, y1: Specify one vertex of a rectangle - @type x2, y2: Depends on function prototype. (for non 'v' prototypes only) - @param x2, y2: Specify the opposite vertex of the rectangle - @type v1, v2: Depends on function prototype. (for 'v' prototypes only) - @param v1, v2: Specifies a pointer to one vertex of a rectangle and the pointer - to the opposite vertex of the rectangle - """ - -def glRenderMode(mode): - """ - Set rasterization mode - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/rendermode.html} - - @type mode: Enumerated constant - @param mode: Specifies the rasterization mode. - """ - -def glRotate (angle, x, y, z): - """ - B{glRotated, glRotatef} - - Multiply the current matrix by a rotation matrix - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/rotate.html} - - @type angle: Depends on function prototype. - @param angle: Specifies the angle of rotation in degrees. - @type x, y, z: Depends on function prototype. - @param x, y, z: Specify the x, y, and z coordinates of a vector respectively. - """ - -def glScale (x,y,z): - """ - B{glScaled, glScalef} - - Multiply the current matrix by a general scaling matrix - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/scale.html} - - @type x, y, z: Depends on function prototype. - @param x, y, z: Specify scale factors along the x, y, and z axes, respectively. - """ - -def glScissor(x,y,width,height): - """ - Define the scissor box - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/scissor.html} - - @type x, y: int - @param x, y: Specify the lower left corner of the scissor box. Initially (0, 0). - @type width, height: int - @param width height: Specify the width and height of the scissor box. When a - GL context is first attached to a window, width and height are set to the - dimensions of that window. - """ - -def glSelectBuffer(size, buffer): - """ - Establish a buffer for selection mode values - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/selectbuffer.html} - - @type size: int - @param size: Specifies the size of buffer - @type buffer: Buffer I{type GL_INT} - @param buffer: Returns the selection data - """ - -def glShadeModel(mode): - """ - Select flat or smooth shading - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/shademodel.html} - - @type mode: Enumerated constant - @param mode: Specifies a symbolic value representing a shading technique. - """ - -def glStencilFuc(func, ref, mask): - """ - Set function and reference value for stencil testing - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/stencilfunc.html} - - @type func: Enumerated constant - @param func:Specifies the test function. - @type ref: int - @param ref:Specifies the reference value for the stencil test. ref is clamped to - the range [0,2n-1], where n is the number of bitplanes in the stencil buffer. - The initial value is 0. - @type mask: unsigned int - @param mask:Specifies a mask that is ANDed with both the reference value and - the stored stencil value when the test is done. The initial value is all 1's. - """ - -def glStencilMask(mask): - """ - Control the writing of individual bits in the stencil planes - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/stencilmask.html} - - @type mask: unsigned int - @param mask: Specifies a bit mask to enable and disable writing of individual bits - in the stencil planes. Initially, the mask is all 1's. - """ - -def glStencilOp(fail, zfail, zpass): - """ - Set stencil test actions - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/stencilop.html} - - @type fail: Enumerated constant - @param fail: Specifies the action to take when the stencil test fails. - The initial value is GL_KEEP. - @type zfail: Enumerated constant - @param zfail: Specifies the stencil action when the stencil test passes, but the - depth test fails. zfail accepts the same symbolic constants as fail. - The initial value is GL_KEEP. - @type zpass: Enumerated constant - @param zpass: Specifies the stencil action when both the stencil test and the - depth test pass, or when the stencil test passes and either there is no depth - buffer or depth testing is not enabled. zpass accepts the same symbolic constants - as fail. The initial value is GL_KEEP. - """ - -def glTexCoord (s,t,r,q,v): - """ - B{glTexCoord1d, glTexCoord1f, glTexCoord1i, glTexCoord1s, glTexCoord2d, glTexCoord2f, - glTexCoord2i, glTexCoord2s, glTexCoord3d, glTexCoord3f, glTexCoord3i, glTexCoord3s, - glTexCoord4d, glTexCoord4f, glTexCoord4i, glTexCoord4s, glTexCoord1dv, glTexCoord1fv, - glTexCoord1iv, glTexCoord1sv, glTexCoord2dv, glTexCoord2fv, glTexCoord2iv, - glTexCoord2sv, glTexCoord3dv, glTexCoord3fv, glTexCoord3iv, glTexCoord3sv, - glTexCoord4dv, glTexCoord4fv, glTexCoord4iv, glTexCoord4sv} - - Set the current texture coordinates - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texcoord.html} - - @type s, t, r, q: Depends on function prototype. (r and q for '3' and '4' prototypes only) - @param s, t, r, q: Specify s, t, r, and q texture coordinates. Not all parameters are - present in all forms of the command. - @type v: Buffer object. Depends on function prototype. (for 'v' prototypes only) - @param v: Specifies a pointer to an array of one, two, three, or four elements, - which in turn specify the s, t, r, and q texture coordinates. - """ - -def glTexEnv (target, pname, param): - """ - B{glTextEnvf, glTextEnvi, glTextEnvfv, glTextEnviv} - - Set texture environment parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texenv.html} - - @type target: Enumerated constant - @param target: Specifies a texture environment. Must be GL_TEXTURE_ENV. - @type pname: Enumerated constant - @param pname: Specifies the symbolic name of a single-valued texture environment - parameter. Must be GL_TEXTURE_ENV_MODE. - @type param: Depends on function prototype. - @param param: Specifies a single symbolic constant. If function prototype ends in 'v' - specifies a pointer to a parameter array that contains either a single symbolic - constant or an RGBA color - """ - -def glTexGen (coord, pname, param): - """ - B{glTexGend, glTexGenf, glTexGeni, glTexGendv, glTexGenfv, glTexGeniv} - - Control the generation of texture coordinates - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texgen.html} - - @type coord: Enumerated constant - @param coord: Specifies a texture coordinate. - @type pname: Enumerated constant - @param pname: Specifies the symbolic name of the texture- coordinate generation function. - @type param: Depends on function prototype. - @param param: Specifies a single-valued texture generation parameter. - If function prototype ends in 'v' specifies a pointer to an array of texture - generation parameters. If pname is GL_TEXTURE_GEN_MODE, then the array must - contain a single symbolic constant. Otherwise, params holds the coefficients - for the texture-coordinate generation function specified by pname. - """ - -def glTexImage1D(target, level, internalformat, width, border, format, type, pixels): - """ - Specify a one-dimensional texture image - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage1d.html} - - @type target: Enumerated constant - @param target: Specifies the target texture. - @type level: int - @param level: Specifies the level-of-detail number. Level 0 is the base image level. - Level n is the nth mipmap reduction image. - @type internalformat: int - @param internalformat: Specifies the number of color components in the texture. - @type width: int - @param width: Specifies the width of the texture image. Must be 2n+2(border) for - some integer n. All implementations support texture images that are at least 64 - texels wide. The height of the 1D texture image is 1. - @type border: int - @param border: Specifies the width of the border. Must be either 0 or 1. - @type format: Enumerated constant - @param format: Specifies the format of the pixel data. - @type type: Enumerated constant - @param type: Specifies the data type of the pixel data. - @type pixels: Buffer object. - @param pixels: Specifies a pointer to the image data in memory. - """ - -def glTexImage2D(target, level, internalformat, width, height, border, format, type, pixels): - """ - Specify a two-dimensional texture image - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html} - - @type target: Enumerated constant - @param target: Specifies the target texture. - @type level: int - @param level: Specifies the level-of-detail number. Level 0 is the base image level. - Level n is the nth mipmap reduction image. - @type internalformat: int - @param internalformat: Specifies the number of color components in the texture. - @type width: int - @param width: Specifies the width of the texture image. Must be 2n+2(border) for - some integer n. All implementations support texture images that are at least 64 - texels wide. - @type height: int - @param height: Specifies the height of the texture image. Must be 2m+2(border) for - some integer m. All implementations support texture images that are at least 64 - texels high. - @type border: int - @param border: Specifies the width of the border. Must be either 0 or 1. - @type format: Enumerated constant - @param format: Specifies the format of the pixel data. - @type type: Enumerated constant - @param type: Specifies the data type of the pixel data. - @type pixels: Buffer object. - @param pixels: Specifies a pointer to the image data in memory. - """ - -def glTexParameter (target, pname, param): - """ - B{glTexParameterf, glTexParameteri, glTexParameterfv, glTexParameteriv} - - Set texture parameters - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html} - - @type target: Enumerated constant - @param target: Specifies the target texture. - @type pname: Enumerated constant - @param pname: Specifies the symbolic name of a single-valued texture parameter. - @type param: Depends on function prototype. - @param param: Specifies the value of pname. If function prototype ends in 'v' specifies - a pointer to an array where the value or values of pname are stored. - """ - -def glTranslate (x, y, z): - """ - B{glTranslatef, glTranslated} - - Multiply the current matrix by a translation matrix - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/translate.html} - - @type x, y, z: Depends on function prototype. - @param x, y, z: Specify the x, y, and z coordinates of a translation vector. - """ - -def glVertex (x,y,z,w,v): - """ - B{glVertex2d, glVertex2f, glVertex2i, glVertex2s, glVertex3d, glVertex3f, glVertex3i, - glVertex3s, glVertex4d, glVertex4f, glVertex4i, glVertex4s, glVertex2dv, glVertex2fv, - glVertex2iv, glVertex2sv, glVertex3dv, glVertex3fv, glVertex3iv, glVertex3sv, glVertex4dv, - glVertex4fv, glVertex4iv, glVertex4sv} - - Specify a vertex - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/vertex.html} - - @type x, y, z, w: Depends on function prototype (z and w for '3' and '4' prototypes only) - @param x, y, z, w: Specify x, y, z, and w coordinates of a vertex. Not all parameters - are present in all forms of the command. - @type v: Buffer object. Depends of function prototype (for 'v' prototypes only) - @param v: Specifies a pointer to an array of two, three, or four elements. The - elements of a two-element array are x and y; of a three-element array, x, y, and z; - and of a four-element array, x, y, z, and w. - """ - -def glViewport(x,y,width,height): - """ - Set the viewport - @see: U{www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/viewport.html} - - @type x, y: int - @param x, y: Specify the lower left corner of the viewport rectangle, - in pixels. The initial value is (0,0). - @type width, height: int - @param width, height: Specify the width and height of the viewport. When a GL context - is first attached to a window, width and height are set to the dimensions of that window. - """ - -def gluPerspective(fovY, aspect, zNear, zFar): - """ - Set up a perspective projection matrix. - @see: U{http://biology.ncsa.uiuc.edu/cgi-bin/infosrch.cgi?cmd=getdoc&coll=0650&db=bks&fname=/SGI_Developer/OpenGL_RM/ch06.html#id5577288} - - @type fovY: double - @param fovY: Specifies the field of view angle, in degrees, in the y direction. - @type aspect: double - @param aspect: Specifies the aspect ratio that determines the field of view in the x direction. - The aspect ratio is the ratio of x (width) to y (height). - @type zNear: double - @param zNear: Specifies the distance from the viewer to the near clipping plane (always positive). - @type zFar: double - @param zFar: Specifies the distance from the viewer to the far clipping plane (always positive). - """ - -def gluLookAt(eyex, eyey, eyez, centerx, centery, centerz, upx, upy, upz): - """ - Define a viewing transformation - @see: U{http://biology.ncsa.uiuc.edu/cgi-bin/infosrch.cgi?cmd=getdoc&coll=0650&db=bks&fname=/SGI_Developer/OpenGL_RM/ch06.html#id5573042} - - @type eyex, eyey, eyez: double - @param eyex, eyey, eyez: Specifies the position of the eye point. - @type centerx, centery, centerz: double - @param centerx, centery, centerz: Specifies the position of the reference point. - @type upx, upy, upz: double - @param upx, upy, upz: Specifies the direction of the up vector. - """ - -def gluOrtho2D(left, right, bottom, top): - """ - Define a 2-D orthographic projection matrix - @see: U{http://biology.ncsa.uiuc.edu/cgi-bin/infosrch.cgi?cmd=getdoc&coll=0650&db=bks&fname=/SGI_Developer/OpenGL_RM/ch06.html#id5578074} - - @type left, right: double - @param left, right: Specify the coordinates for the left and right vertical clipping planes. - @type bottom, top: double - @param bottom, top: Specify the coordinates for the bottom and top horizontal clipping planes. - """ - -def gluPickMatrix(x, y, width, height, viewport): - """ - Define a picking region - @see: U{http://biology.ncsa.uiuc.edu/cgi-bin/infosrch.cgi?cmd=getdoc&coll=0650&db=bks&fname=/SGI_Developer/OpenGL_RM/ch06.html#id5578074} - - @type x, y: double - @param x, y: Specify the center of a picking region in window coordinates. - @type width, height: double - @param width, height: Specify the width and height, respectively, of the picking region in window coordinates. - @type viewport: Buffer object. [int] - @param viewport: Specifies the current viewport. - """ - -def gluProject(objx, objy, objz, modelMatrix, projMatrix, viewport, winx, winy, winz): - """ - Map object coordinates to window coordinates. - @see: U{http://biology.ncsa.uiuc.edu/cgi-bin/infosrch.cgi?cmd=getdoc&coll=0650&db=bks&fname=/SGI_Developer/OpenGL_RM/ch06.html#id5578074} - - @type objx, objy, objz: double - @param objx, objy, objz: Specify the object coordinates. - @type modelMatrix: Buffer object. [double] - @param modelMatrix: Specifies the current modelview matrix (as from a glGetDoublev call). - @type projMatrix: Buffer object. [double] - @param projMatrix: Specifies the current projection matrix (as from a glGetDoublev call). - @type viewport: Buffer object. [int] - @param viewport: Specifies the current viewport (as from a glGetIntegerv call). - @type winx, winy, winz: Buffer object. [double] - @param winx, winy, winz: Return the computed window coordinates. - """ - -def gluUnProject(winx, winy, winz, modelMatrix, projMatrix, viewport, objx, objy, objz): - """ - Map object coordinates to window - coordinates. - @see: U{http://biology.ncsa.uiuc.edu/cgi-bin/infosrch.cgi?cmd=getdoc&coll=0650&db=bks&fname=/SGI_Developer/OpenGL_RM/ch06.html#id5582204} - - @type winx, winy, winz: double - @param winx, winy, winz: Specify the window coordinates to be mapped. - @type modelMatrix: Buffer object. [double] - @param modelMatrix: Specifies the current modelview matrix (as from a glGetDoublev call). - @type projMatrix: Buffer object. [double] - @param projMatrix: Specifies the current projection matrix (as from a glGetDoublev call). - @type viewport: Buffer object. [int] - @param viewport: Specifies the current viewport (as from a glGetIntegerv call). - @type objx, objy, objz: Buffer object. [double] - @param objx, objy, objz: Return the computed object coordinates. - """ - -class Buffer: - """ - The Buffer object is simply a block of memory that is delineated and initialized by the - user. Many OpenGL functions return data to a C-style pointer, however, because this - is not possible in python the Buffer object can be used to this end. Wherever pointer - notation is used in the OpenGL functions the Buffer object can be used in it's BGL - wrapper. In some instances the Buffer object will need to be initialized with the template - parameter, while in other instances the user will want to create just a blank buffer - which will be zeroed by default. - - Example with Buffer:: - import Blender - from Blender import BGL - myByteBuffer = BGL.Buffer(BGL.GL_BYTE, [32,32]) - BGL.glGetPolygonStipple(myByteBuffer) - print myByteBuffer.dimensions - print myByteBuffer.list - sliceBuffer = myByteBuffer[0:16] - print sliceBuffer - - @ivar list: The contents of the Buffer. - @ivar dimensions: The size of the Buffer. - """ - - def __init__(type, dimensions, template = None): - """ - This will create a new Buffer object for use with other BGL OpenGL commands. - Only the type of argument to store in the buffer and the dimensions of the buffer - are necessary. Buffers are zeroed by default unless a template is supplied, in - which case the buffer is initialized to the template. - - @type type: int - @param type: The format to store data in. The type should be one of - GL_BYTE, GL_SHORT, GL_INT, or GL_FLOAT. - @type dimensions: An int or sequence object specifying the dimensions of the buffer. - @param dimensions: If the dimensions are specified as an int a linear array will - be created for the buffer. If a sequence is passed for the dimensions, the buffer - becomes n-Dimensional, where n is equal to the number of parameters passed in the - sequence. Example: [256,2] is a two- dimensional buffer while [256,256,4] creates - a three- dimensional buffer. You can think of each additional dimension as a sub-item - of the dimension to the left. i.e. [10,2] is a 10 element array each with 2 sub-items. - [(0,0), (0,1), (1,0), (1,1), (2,0), ...] etc. - @type template: A python sequence object (optional) - @param template: A sequence of matching dimensions which will be used to initialize - the Buffer. If a template is not passed in all fields will be initialized to 0. - @rtype: Buffer object - @return: The newly created buffer as a PyObject. - """ |