Do not allow inf z value in the vertex shader. Clamp w to a very small value.

Fixes ground triangles clipping in Soulcalibur intro sequence.
2018-07-24 16:55:48 +02:00 · 2018-07-24 16:55:48 +02:00 · b1686a8f6a
parent b28e1505c5
commit b1686a8f6a
1 changed files with 4 additions and 1 deletions
--- a/core/rend/gles/gles.cpp
+++ b/core/rend/gles/gles.cpp
@ -108,7 +108,10 @@ void main() \n\
 	vtx_offs=in_offs; \n\
 	vtx_uv=in_uv; \n\
 	vec4 vpos=in_pos; \n\
-	vpos.w=1.0/vpos.z;  \n"
+	if (isinf(vpos.z)) \n\
+		vpos.w = 1.18e-38; \n\
+	else \n\
+		vpos.w = 1.0 / vpos.z; \n"
 #ifndef GLES
 	"\
 	if (vpos.w < 0.0) { \n\