diff options
Diffstat (limited to 'source/blender/gpu/shaders/gpu_shader_vertex.glsl')
| -rw-r--r-- | source/blender/gpu/shaders/gpu_shader_vertex.glsl | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/source/blender/gpu/shaders/gpu_shader_vertex.glsl b/source/blender/gpu/shaders/gpu_shader_vertex.glsl index a86431bdd7a..574455e42b3 100644 --- a/source/blender/gpu/shaders/gpu_shader_vertex.glsl +++ b/source/blender/gpu/shaders/gpu_shader_vertex.glsl @@ -10,3 +10,11 @@ void main() varnormal = normalize(gl_NormalMatrix * gl_Normal); gl_Position = gl_ProjectionMatrix * co; + // Setting gl_ClipVertex is necessary to get glClipPlane working on NVIDIA graphic cards. + // gl_ClipVertex works only on NVIDIA graphic cards so we have to check with + // __GLSL_CG_DATA_TYPES if a NVIDIA graphic card is used (Cg support). + // gl_ClipVerte is supported up to GLSL 1.20. + #ifdef __GLSL_CG_DATA_TYPES + gl_ClipVertex = gl_ModelViewMatrix * gl_Vertex; + #endif + |