Displaying 1 result from an estimated 1 matches for "gl_backcolor".
2013 Jul 06
4
[Bug 66642] New: [nva5] Wrong provoking vertex is selected for flat attribute interpolation (clipping?)
...Classification: Unclassified
OS: Linux (All)
Reporter: alzeih at gmail.com
Hardware: x86-64 (AMD64)
Status: NEW
Version: git
Component: Drivers/DRI/nouveau
Product: Mesa
The following piglit test:
interpolation-flat-gl_BackColor-smooth-none.shader_test
appears to select the wrong provoking vertex depending on the exact value of
v[0].y.
For v[0].y > -1.0, the triangle ends up red.
For v[0].y = -1.0, the triangle ends up green.
For v[0].y < -1.0, the triangle ends up (correctly) blue.
Hardware: nva5 (GT330M) in MacB...