diff options
Diffstat (limited to 'source/blender/draw/intern/shaders/common_view_clipping_lib.glsl')
| -rw-r--r-- | source/blender/draw/intern/shaders/common_view_clipping_lib.glsl | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/source/blender/draw/intern/shaders/common_view_clipping_lib.glsl b/source/blender/draw/intern/shaders/common_view_clipping_lib.glsl new file mode 100644 index 00000000000..d55808c42d2 --- /dev/null +++ b/source/blender/draw/intern/shaders/common_view_clipping_lib.glsl @@ -0,0 +1,33 @@ + +#pragma BLENDER_REQUIRE(common_view_lib.glsl) + +#if defined(GPU_VERTEX_SHADER) || defined(GPU_GEOMETRY_SHADER) + +void view_clipping_distances(vec3 wpos) +{ +# ifdef USE_WORLD_CLIP_PLANES + vec4 pos = vec4(wpos, 1.0); + gl_ClipDistance[0] = dot(drw_view.clip_planes[0], pos); + gl_ClipDistance[1] = dot(drw_view.clip_planes[1], pos); + gl_ClipDistance[2] = dot(drw_view.clip_planes[2], pos); + gl_ClipDistance[3] = dot(drw_view.clip_planes[3], pos); + gl_ClipDistance[4] = dot(drw_view.clip_planes[4], pos); + gl_ClipDistance[5] = dot(drw_view.clip_planes[5], pos); +# endif +} + +/* Kept as define for compiler compatibility. */ +# ifdef USE_WORLD_CLIP_PLANES +# define view_clipping_distances_set(c) \ + gl_ClipDistance[0] = (c).gl_ClipDistance[0]; \ + gl_ClipDistance[1] = (c).gl_ClipDistance[1]; \ + gl_ClipDistance[2] = (c).gl_ClipDistance[2]; \ + gl_ClipDistance[3] = (c).gl_ClipDistance[3]; \ + gl_ClipDistance[4] = (c).gl_ClipDistance[4]; \ + gl_ClipDistance[5] = (c).gl_ClipDistance[5]; + +# else +# define view_clipping_distances_set(c) +# endif + +#endif |