diff options
Diffstat (limited to 'source/blender/draw/intern/shaders/common_subdiv_patch_evaluation_comp.glsl')
| -rw-r--r-- | source/blender/draw/intern/shaders/common_subdiv_patch_evaluation_comp.glsl | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/source/blender/draw/intern/shaders/common_subdiv_patch_evaluation_comp.glsl b/source/blender/draw/intern/shaders/common_subdiv_patch_evaluation_comp.glsl index bf1f0f95787..b2860e58b5c 100644 --- a/source/blender/draw/intern/shaders/common_subdiv_patch_evaluation_comp.glsl +++ b/source/blender/draw/intern/shaders/common_subdiv_patch_evaluation_comp.glsl @@ -387,6 +387,11 @@ float get_face_flag(uint coarse_quad_index) return 0.0; } +bool is_face_hidden(uint coarse_quad_index) +{ + return (extra_coarse_face_data[coarse_quad_index] & coarse_face_hidden_mask) != 0; +} + void main() { /* We execute for each coarse quad. */ @@ -417,7 +422,13 @@ void main() output_verts[coarse_quad_index] = vert; output_nors[coarse_quad_index] = fnor; - output_indices[coarse_quad_index] = coarse_quad_index; + + if (is_face_hidden(coarse_quad_index)) { + output_indices[coarse_quad_index] = 0xffffffff; + } + else { + output_indices[coarse_quad_index] = coarse_quad_index; + } } #else void main() |