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don't automatically do polygon smooth blending mode

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This commit is contained in:
David Rose 2005-01-28 22:01:51 +00:00
parent 185fbf613e
commit b248ae9f04
1 changed files with 9 additions and 13 deletions
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22
panda/src/glstuff/glGraphicsStateGuardian_src.cxx
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@ -4510,19 +4510,15 @@ set_blend_mode() {
return;
}
if (_polygon_smooth_enabled &&
(get_properties().get_frame_buffer_mode() & FrameBufferProperties::FM_alpha) != 0) {
// For polygon smoothing, we need this special kind of blending,
// but this only works if we have an alpha channel in the frame
// buffer. We should also sort the polygons front-to-back, but
// that's the application's problem.
enable_multisample_alpha_one(false);
enable_multisample_alpha_mask(false);
enable_blend(true);
_glBlendEquation(GL_FUNC_ADD);
GLP(BlendFunc)(GL_SRC_ALPHA_SATURATE, GL_ONE);
return;
}
// For best polygon smoothing, we need:
// (1) a frame buffer that supports alpha
// (2) sort polygons front-to-back
// (3) glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
//
// Since these modes have other implications for the application, we
// don't attempt to do this by default. If you really want good
// polygon smoothing (and you don't have multisample support), do
// all this yourself.
// Nothing's set, so disable blending.
enable_multisample_alpha_one(false);