Commit: 45ec962f68f834bb662e4e25e770f8aa61891e6b
Author: Clément Foucault
Date: Wed Mar 7 19:03:01 2018 +0100
Branches: blender2.8
https://developer.blender.org/rB45ec962f68f834bb662e4e25e770f8aa61891e6b
DRW: Fix culling with inverted view (planar reflections)
Just invert the frustum planes in this case.
===================================================================
M source/blender/draw/intern/draw_manager_exec.c
===================================================================
diff --git a/source/blender/draw/intern/draw_manager_exec.c
b/source/blender/draw/intern/draw_manager_exec.c
index a984a0b782f..3865bd60817 100644
--- a/source/blender/draw/intern/draw_manager_exec.c
+++ b/source/blender/draw/intern/draw_manager_exec.c
@@ -414,6 +414,9 @@ static void draw_clipping_setup_from_view(void)
case 4: q=0; r=3; break;
default: q=4; r=7; break;
}
+ if (DST.frontface == GL_CW) {
+ SWAP(int, q, r);
+ }
normal_tri_v3(DST.clipping.frustum_planes[p], bbox.vec[p],
bbox.vec[q], bbox.vec[r]);
DST.clipping.frustum_planes[p][3] =
-dot_v3v3(DST.clipping.frustum_planes[p], bbox.vec[p]);
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