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probably don't divide by zero when normalizing vsh output depth

This commit is contained in:
espes 2015-07-03 15:55:45 +10:00
parent 60c0d7e433
commit 3afc4facd3
1 changed files with 3 additions and 1 deletions
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4
hw/xbox/nv2a_vsh.c
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@ -779,7 +779,9 @@ QString* vsh_translate(uint16_t version,
" /* Un-screenspace transform */\n"
"oPos.x = (oPos.x - viewportOffset.x) / viewportScale.x;\n"
"oPos.y = (oPos.y - viewportOffset.y) / viewportScale.y;\n"
"oPos.z = (oPos.z - 0.5 * (clipRange.x + clipRange.y)) / (0.5 * (clipRange.y - clipRange.x));\n"
"if (clipRange.y != clipRange.x) {\n"
" oPos.z = (oPos.z - 0.5 * (clipRange.x + clipRange.y)) / (0.5 * (clipRange.y - clipRange.x));\n"
"}\n"
"if (oPos.w <= 0.0) {\n"
/* undo the perspective divide in the case where the point would be