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- another failed attempt to use GL_CLIP_PLANE. Leave it in because it's closer to what is needed than the old code.

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This commit is contained in:
Christoph Oelckers 2016-05-12 23:41:06 +02:00
parent 616f84209b
commit 99bfc64af6
1 changed files with 15 additions and 8 deletions
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23
src/gl/renderer/gl_renderstate.cpp
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@ -342,21 +342,28 @@ void FRenderState::SetClipHeight(float height, float direction)
{
mClipHeight = height;
mClipHeightDirection = direction;
#if 1
// This still doesn't work... :(
if (gl.glslversion < 1.3f) return;
#endif
if (direction != 0.f)
{
if (gl.glslversion >= 1.3f) glEnable(GL_CLIP_DISTANCE0);
else
/*
if (gl.glslversion < 1.3f)
{
// This does not work. Need someone who understands how glClipPlane works...
//glEnable(GL_CLIP_PLANE0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadMatrixf(mViewMatrix.get());
// Plane mirrors never are slopes.
//double d[4] = { 0, direction, 0, -direction * height };
//glClipPlane(GL_CLIP_PLANE0, d);
double d[4] = { 0, direction, 0, -direction * height };
glClipPlane(GL_CLIP_PLANE0, d);
glPopMatrix();
}
*/
glEnable(GL_CLIP_DISTANCE0);
}
else
{
if (gl.glslversion >= 1.3f) glDisable(GL_CLIP_DISTANCE0);
//else glDisable(GL_CLIP_PLANE0);
glDisable(GL_CLIP_DISTANCE0); // GL_CLIP_PLANE0 is the same value so no need to make a distinction
}
}