diff options
Diffstat (limited to 'source/blender/freestyle/intern/scene_graph/NodeCamera.cpp')
-rw-r--r-- | source/blender/freestyle/intern/scene_graph/NodeCamera.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/scene_graph/NodeCamera.cpp b/source/blender/freestyle/intern/scene_graph/NodeCamera.cpp new file mode 100644 index 00000000000..2d850287ae5 --- /dev/null +++ b/source/blender/freestyle/intern/scene_graph/NodeCamera.cpp @@ -0,0 +1,119 @@ +#include "NodeCamera.h" +#include <math.h> + +void loadIdentity(double * matrix){ + int i; + + // Build Identity matrix + for(i=0;i<16;++i){ + double value ; + if((i % 5) == 0) + value = 1.0; + else + value = 0; + matrix[i] = value; + } +} + +NodeCamera::NodeCamera(CameraType camera_type) +:camera_type_(camera_type){ + loadIdentity(modelview_matrix_); + loadIdentity(projection_matrix_); +} + +NodeCamera::NodeCamera(const NodeCamera& iBrother) +:camera_type_(iBrother.camera_type_){ + memcpy(modelview_matrix_, iBrother.modelview_matrix_, 16*sizeof(double)); + memcpy(projection_matrix_, iBrother.projection_matrix_, 16*sizeof(double)); +} + +void NodeCamera::accept(SceneVisitor& v){ + v.visitNodeCamera(*this) ; +} + +void NodeCamera::setModelViewMatrix(double modelview_matrix[16]){ + memcpy(modelview_matrix_, modelview_matrix,16*sizeof(double)); +} + +void NodeCamera::setProjectionMatrix(double projection_matrix[16]){ + memcpy(projection_matrix_, projection_matrix,16*sizeof(double)); +} + +NodeOrthographicCamera::NodeOrthographicCamera() +:NodeCamera(NodeCamera::ORTHOGRAPHIC), +left_(0),right_(0),bottom_(0),top_(0),zNear_(0),zFar_(0){ + loadIdentity(projection_matrix_); + loadIdentity(modelview_matrix_); +} + +NodeOrthographicCamera::NodeOrthographicCamera(double left + , double right + , double bottom + , double top + , double zNear + , double zFar + ) +:NodeCamera(NodeCamera::ORTHOGRAPHIC), +left_(left), +right_(right), +bottom_(bottom), +top_(top), +zNear_(zNear), +zFar_(zFar){ + + loadIdentity(projection_matrix_); + + projection_matrix_[0] = 2.0/(right-left); + projection_matrix_[3] = -(right + left) / (right - left) ; + projection_matrix_[5] = 2.0/(top-bottom); + projection_matrix_[7] = -(top + bottom) / (top - bottom) ; + projection_matrix_[10] = -2.0/(zFar-zNear); + projection_matrix_[11] = -(zFar + zNear) / (zFar - zNear); + +} + +NodeOrthographicCamera::NodeOrthographicCamera(const NodeOrthographicCamera& iBrother) +:NodeCamera(iBrother),left_(iBrother.left_),right_(iBrother.right_),bottom_(iBrother.bottom_),top_(iBrother.top_),zNear_(iBrother.zNear_),zFar_(iBrother.zFar_){ +} + +NodePerspectiveCamera::NodePerspectiveCamera() +:NodeCamera(NodeCamera::PERSPECTIVE){ +} + +NodePerspectiveCamera::NodePerspectiveCamera(double fovy + , double aspect + , double zNear + , double zFar) +:NodeCamera(NodeCamera::PERSPECTIVE){ + loadIdentity(projection_matrix_); + + double f = cos(fovy/2.0)/sin(fovy/2.0); // cotangent + + projection_matrix_[0] = f/aspect; + projection_matrix_[5] = f; + projection_matrix_[10] = (zNear+zFar)/(zNear-zFar); + projection_matrix_[11] = (2.0*zNear*zFar)/(zNear-zFar); + projection_matrix_[14] = -1.0; + projection_matrix_[15] = 0; + +} + +NodePerspectiveCamera::NodePerspectiveCamera(double left, + double right, + double bottom, + double top, + double zNear, + double zFar) +:NodeCamera(NodeCamera::PERSPECTIVE){ + loadIdentity(projection_matrix_); + + projection_matrix_[0] = (2.0*zNear)/(right-left); + projection_matrix_[2] = (right+left)/(right-left); + projection_matrix_[5] = (2.0*zNear)/(top-bottom); + projection_matrix_[6] = (top+bottom)/(top-bottom); + projection_matrix_[10] = - (zFar+zNear)/(zFar-zNear); + projection_matrix_[11] = - (2.0*zFar*zNear)/(zFar-zNear); + projection_matrix_[14] = -1.0; + projection_matrix_[15] = 0; +} + |