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fix polygon cull regression

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This commit is contained in:
Brian 2007-12-14 14:34:15 -07:00
parent a5eb9e7b1b
commit 507d43f95b
1 changed files with 3 additions and 7 deletions
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10
src/mesa/swrast/s_context.c
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@ -117,7 +117,7 @@ _swrast_update_rasterflags( GLcontext *ctx )
/**
* Examine polycon culls tate to compute the _BackfaceCullSign field.
* Examine polygon cull state to compute the _BackfaceCullSign field.
* _BackfaceCullSign will be 0 if no culling, -1 if culling back-faces,
* and 1 if culling front-faces. The Polygon FrontFace state also
* factors in.
@ -128,21 +128,17 @@ _swrast_update_polygon( GLcontext *ctx )
GLfloat backface_sign;
if (ctx->Polygon.CullFlag) {
backface_sign = 1.0;
switch (ctx->Polygon.CullFaceMode) {
case GL_BACK:
if (ctx->Polygon.FrontFace == GL_CCW)
backface_sign = -1.0;
backface_sign = -1.0;
break;
case GL_FRONT:
if (ctx->Polygon.FrontFace != GL_CCW)
backface_sign = -1.0;
backface_sign = 1.0;
break;
case GL_FRONT_AND_BACK:
/* fallthrough */
default:
backface_sign = 0.0;
break;
}
}
else {