diff options
Diffstat (limited to 'source/blender/editors/space_view3d/drawvolume.c')
| -rw-r--r-- | source/blender/editors/space_view3d/drawvolume.c | 350 |
1 files changed, 0 insertions, 350 deletions
diff --git a/source/blender/editors/space_view3d/drawvolume.c b/source/blender/editors/space_view3d/drawvolume.c deleted file mode 100644 index c8eda10566c..00000000000 --- a/source/blender/editors/space_view3d/drawvolume.c +++ /dev/null @@ -1,350 +0,0 @@ -/** - * $Id$ - * - * ***** BEGIN GPL LICENSE BLOCK ***** - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. - * All rights reserved. - * - * Contributor(s): Daniel Genrich - * - * ***** END GPL LICENSE BLOCK ***** - */ - - -#include <string.h> -#include <math.h> - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include "MEM_guardedalloc.h" - -#include "IMB_imbuf.h" - - - - -#include "DNA_armature_types.h" -#include "DNA_boid_types.h" -#include "DNA_camera_types.h" -#include "DNA_curve_types.h" -#include "DNA_constraint_types.h" // for drawing constraint -#include "DNA_effect_types.h" -#include "DNA_lamp_types.h" -#include "DNA_lattice_types.h" -#include "DNA_material_types.h" -#include "DNA_mesh_types.h" -#include "DNA_meshdata_types.h" -#include "DNA_meta_types.h" -#include "DNA_modifier_types.h" -#include "DNA_object_types.h" -#include "DNA_object_force.h" -#include "DNA_object_fluidsim.h" -#include "DNA_particle_types.h" -#include "DNA_space_types.h" -#include "DNA_scene_types.h" -#include "DNA_screen_types.h" -#include "DNA_smoke_types.h" -#include "DNA_userdef_types.h" -#include "DNA_view3d_types.h" -#include "DNA_world_types.h" - -#include "BLI_blenlib.h" -#include "BLI_arithb.h" -#include "BLI_editVert.h" -#include "BLI_edgehash.h" -#include "BLI_rand.h" - -#include "BKE_anim.h" //for the where_on_path function -#include "BKE_curve.h" -#include "BKE_constraint.h" // for the get_constraint_target function -#include "BKE_DerivedMesh.h" -#include "BKE_deform.h" -#include "BKE_displist.h" -#include "BKE_effect.h" -#include "BKE_font.h" -#include "BKE_global.h" -#include "BKE_image.h" -#include "BKE_key.h" -#include "BKE_lattice.h" -#include "BKE_mesh.h" -#include "BKE_material.h" -#include "BKE_mball.h" -#include "BKE_modifier.h" -#include "BKE_object.h" -#include "BKE_paint.h" -#include "BKE_particle.h" -#include "BKE_property.h" -#include "BKE_smoke.h" -#include "BKE_unit.h" -#include "BKE_utildefines.h" -#include "smoke_API.h" - -#include "BIF_gl.h" -#include "BIF_glutil.h" - -#include "GPU_draw.h" -#include "GPU_material.h" -#include "GPU_extensions.h" - -#include "ED_mesh.h" -#include "ED_particle.h" -#include "ED_screen.h" -#include "ED_types.h" -#include "ED_util.h" - -#include "UI_resources.h" -#include "UI_interface_icons.h" - -#include "WM_api.h" -#include "BLF_api.h" - -#include "GPU_extensions.h" - -#include "view3d_intern.h" // own include - -struct GPUTexture; - -/* draw slices of smoke is adapted from c++ code authored by: Johannes Schmid and Ingemar Rask, 2006, johnny@grob.org */ -static float cv[][3] = { - {1.0f, 1.0f, 1.0f}, {-1.0f, 1.0f, 1.0f}, {-1.0f, -1.0f, 1.0f}, {1.0f, -1.0f, 1.0f}, - {1.0f, 1.0f, -1.0f}, {-1.0f, 1.0f, -1.0f}, {-1.0f, -1.0f, -1.0f}, {1.0f, -1.0f, -1.0f} -}; - -// edges have the form edges[n][0][xyz] + t*edges[n][1][xyz] -static float edges[12][2][3] = { - {{1.0f, 1.0f, -1.0f}, {0.0f, 0.0f, 1.0f}}, - {{-1.0f, 1.0f, -1.0f}, {0.0f, 0.0f, 1.0f}}, - {{-1.0f, -1.0f, -1.0f}, {0.0f, 0.0f, 1.0f}}, - {{1.0f, -1.0f, -1.0f}, {0.0f, 0.0f, 1.0f}}, - - {{1.0f, -1.0f, 1.0f}, {0.0f, 1.0f, 0.0f}}, - {{-1.0f, -1.0f, 1.0f}, {0.0f, 1.0f, 0.0f}}, - {{-1.0f, -1.0f, -1.0f}, {0.0f, 1.0f, 0.0f}}, - {{1.0f, -1.0f, -1.0f}, {0.0f, 1.0f, 0.0f}}, - - {{-1.0f, 1.0f, 1.0f}, {1.0f, 0.0f, 0.0f}}, - {{-1.0f, -1.0f, 1.0f}, {1.0f, 0.0f, 0.0f}}, - {{-1.0f, -1.0f, -1.0f}, {1.0f, 0.0f, 0.0f}}, - {{-1.0f, 1.0f, -1.0f}, {1.0f, 0.0f, 0.0f}} -}; - -int intersect_edges(float *points, float a, float b, float c, float d) -{ - int i; - float t; - int numpoints = 0; - - for (i=0; i<12; i++) { - t = -(a*edges[i][0][0] + b*edges[i][0][1] + c*edges[i][0][2] + d) - / (a*edges[i][1][0] + b*edges[i][1][1] + c*edges[i][1][2]); - if ((t>0)&&(t<2)) { - points[numpoints * 3 + 0] = edges[i][0][0] + edges[i][1][0]*t; - points[numpoints * 3 + 1] = edges[i][0][1] + edges[i][1][1]*t; - points[numpoints * 3 + 2] = edges[i][0][2] + edges[i][1][2]*t; - numpoints++; - } - } - return numpoints; -} - -static int convex(float *p0, float *up, float *a, float *b) -{ - // Vec3 va = a-p0, vb = b-p0; - float va[3], vb[3], tmp[3]; - VECSUB(va, a, p0); - VECSUB(vb, b, p0); - Crossf(tmp, va, vb); - return INPR(up, tmp) >= 0; -} - -// copied from gpu_extension.c -static int is_pow2(int n) -{ - return ((n)&(n-1))==0; -} - -static int larger_pow2(int n) -{ - if (is_pow2(n)) - return n; - - while(!is_pow2(n)) - n= n&(n-1); - - return n*2; -} - -void draw_volume(Scene *scene, ARegion *ar, View3D *v3d, Base *base, GPUTexture *tex, int res[3], float dx, GPUTexture *tex_shadow) -{ - Object *ob = base->object; - RegionView3D *rv3d= ar->regiondata; - - float viewnormal[3]; - int i, j, n; - float d, d0, dd; - float *points = NULL; - int numpoints = 0; - float cor[3] = {1.,1.,1.}; - int gl_depth = 0, gl_blend = 0; - - /* Fragment program to calculate the 3dview of smoke */ - /* using 2 textures, density and shadow */ - const char *text = "!!ARBfp1.0\n" - "PARAM dx = program.local[0];\n" - "PARAM darkness = program.local[1];\n" - "PARAM f = {1.442695041, 1.442695041, 1.442695041, 0.01};\n" - "TEMP temp, shadow, value;\n" - "TEX temp, fragment.texcoord[0], texture[0], 3D;\n" - "TEX shadow, fragment.texcoord[0], texture[1], 3D;\n" - "MUL value, temp, darkness;\n" - "MUL value, value, dx;\n" - "MUL value, value, f;\n" - "EX2 temp, -value.r;\n" - "SUB temp.a, 1.0, temp.r;\n" - "MUL temp.r, temp.r, shadow.r;\n" - "MUL temp.g, temp.g, shadow.r;\n" - "MUL temp.b, temp.b, shadow.r;\n" - "MOV result.color, temp;\n" - "END\n"; - unsigned int prog; - - glGetBooleanv(GL_BLEND, (GLboolean *)&gl_blend); - glGetBooleanv(GL_DEPTH_TEST, (GLboolean *)&gl_depth); - - wmLoadMatrix(rv3d->viewmat); - wmMultMatrix(ob->obmat); - - glDepthMask(GL_FALSE); - glDisable(GL_DEPTH_TEST); - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - - // get view vector - VECCOPY(viewnormal, rv3d->viewinv[2]); - Normalize(viewnormal); - - // find cube vertex that is closest to the viewer - for (i=0; i<8; i++) { - float x,y,z; - - x = cv[i][0] + viewnormal[0]; - y = cv[i][1] + viewnormal[1]; - z = cv[i][2] + viewnormal[2]; - - if ((x>=-1.0f)&&(x<=1.0f) - &&(y>=-1.0f)&&(y<=1.0f) - &&(z>=-1.0f)&&(z<=1.0f)) { - break; - } - } - - if(GLEW_ARB_fragment_program) - { - glGenProgramsARB(1, &prog); - glEnable(GL_FRAGMENT_PROGRAM_ARB); - - glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, prog); - glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, (GLsizei)strlen(text), text); - - // cell spacing - glProgramLocalParameter4fARB (GL_FRAGMENT_PROGRAM_ARB, 0, dx, dx, dx, 1.0); - // custom parameter for smoke style (higher = thicker) - glProgramLocalParameter4fARB (GL_FRAGMENT_PROGRAM_ARB, 1, 7.0, 7.0, 7.0, 1.0); - } - - GPU_texture_bind(tex, 0); - if(tex_shadow) - GPU_texture_bind(tex_shadow, 1); - - if (!GLEW_ARB_texture_non_power_of_two) { - cor[0] = (float)res[0]/(float)larger_pow2(res[0]); - cor[1] = (float)res[1]/(float)larger_pow2(res[1]); - cor[2] = (float)res[2]/(float)larger_pow2(res[2]); - } - - // our slices are defined by the plane equation a*x + b*y +c*z + d = 0 - // (a,b,c), the plane normal, are given by viewdir - // d is the parameter along the view direction. the first d is given by - // inserting previously found vertex into the plane equation - d0 = -(viewnormal[0]*cv[i][0] + viewnormal[1]*cv[i][1] + viewnormal[2]*cv[i][2]); - dd = 2.0*d0/64.0f; - n = 0; - - // printf("d0: %f, dd: %f\n", d0, dd); - - points = MEM_callocN(sizeof(float)*12*3, "smoke_points_preview"); - - for (d = d0; d > -d0; d -= dd) { - float p0[3]; - // intersect_edges returns the intersection points of all cube edges with - // the given plane that lie within the cube - numpoints = intersect_edges(points, viewnormal[0], viewnormal[1], viewnormal[2], d); - - if (numpoints > 2) { - VECCOPY(p0, points); - - // sort points to get a convex polygon - for(i = 1; i < numpoints - 1; i++) - { - for(j = i + 1; j < numpoints; j++) - { - if(convex(p0, viewnormal, &points[j * 3], &points[i * 3])) - { - float tmp2[3]; - VECCOPY(tmp2, &points[i * 3]); - VECCOPY(&points[i * 3], &points[j * 3]); - VECCOPY(&points[j * 3], tmp2); - } - } - } - - glBegin(GL_POLYGON); - for (i = 0; i < numpoints; i++) { - glColor3f(1.0, 1.0, 1.0); - glTexCoord3d((points[i * 3 + 0] + 1.0)*cor[0]/2.0, (points[i * 3 + 1] + 1)*cor[1]/2.0, (points[i * 3 + 2] + 1.0)*cor[2]/2.0); - glVertex3f(points[i * 3 + 0], points[i * 3 + 1], points[i * 3 + 2]); - } - glEnd(); - } - n++; - } - - if(tex_shadow) - GPU_texture_unbind(tex_shadow); - GPU_texture_unbind(tex); - - if(GLEW_ARB_fragment_program) - { - glDisable(GL_FRAGMENT_PROGRAM_ARB); - glDeleteProgramsARB(1, &prog); - } - - - MEM_freeN(points); - - if(!gl_blend) - glDisable(GL_BLEND); - if(gl_depth) - { - glEnable(GL_DEPTH_TEST); - glDepthMask(GL_TRUE); - } -} - |