swrast: fix selection/feedback regression

This fixes a conform selection/feedback regression introduced by commit 8f4d66c5f8
2009-08-31 17:54:46 -06:00
parent fcf0804c05
commit 3f785080db
1 changed files with 1 additions and 1 deletions
@@ -61,7 +61,7 @@ _swrast_culltriangle( GLcontext *ctx,
   GLfloat fy = v2->attrib[FRAG_ATTRIB_WPOS][1] - v0->attrib[FRAG_ATTRIB_WPOS][1];
   GLfloat c = ex*fy-ey*fx;

-   if (c * swrast->_BackfaceSign * swrast->_BackfaceCullSign < 0.0F)
+   if (c * swrast->_BackfaceSign * swrast->_BackfaceCullSign <= 0.0F)
      return GL_FALSE;

   return GL_TRUE;