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- workaround buggy preprocessor in old AMD OpenGL drivers

This commit is contained in:
Magnus Norddahl 2019-04-07 19:42:32 +02:00
parent fb51b5d137
commit c28e56f9e8
1 changed files with 13 additions and 11 deletions
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24
wadsrc/static/shaders/glsl/main.vp
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@ -21,21 +21,12 @@ layout(location = 6) out vec4 vEyeNormal;
#ifdef NO_CLIPDISTANCE_SUPPORT
layout(location = 7) out vec4 ClipDistanceA;
layout(location = 8) out vec4 ClipDistanceB;
#define ClipDistance0 ClipDistanceA.x
#define ClipDistance1 ClipDistanceA.y
#define ClipDistance2 ClipDistanceA.z
#define ClipDistance3 ClipDistanceA.w
#define ClipDistance4 ClipDistanceB.x
#else
#define ClipDistance0 gl_ClipDistance[0]
#define ClipDistance1 gl_ClipDistance[1]
#define ClipDistance2 gl_ClipDistance[2]
#define ClipDistance3 gl_ClipDistance[3]
#define ClipDistance4 gl_ClipDistance[4]
#endif
void main()
{
float ClipDistance0, ClipDistance1, ClipDistance2, ClipDistance3, ClipDistance4;
vec2 parmTexCoord;
vec4 parmPosition;
@ -138,5 +129,16 @@ void main()
ClipDistance4 = 1.0;
}
#ifdef NO_CLIPDISTANCE_SUPPORT
ClipDistanceA = vec4(ClipDistance0, ClipDistance1, ClipDistance2, ClipDistance3);
ClipDistanceB = vec4(ClipDistance4, 0.0, 0.0, 0.0);
#else
gl_ClipDistance[0] = ClipDistance0;
gl_ClipDistance[1] = ClipDistance1;
gl_ClipDistance[2] = ClipDistance2;
gl_ClipDistance[3] = ClipDistance3;
gl_ClipDistance[4] = ClipDistance4;
#endif
gl_PointSize = 1.0;
}