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support ADD_SIGNED combine mode in shader generator

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rdb 2013-07-29 09:12:03 +00:00
parent 230b65c58a
commit 9901dee2c2
1 changed files with 8 additions and 1 deletions
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9
panda/src/pgraphnodes/shaderGenerator.cxx
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@ -1482,7 +1482,14 @@ combine_mode_as_string(CPT(TextureStage) stage, TextureStage::CombineMode c_mode
text << combine_source_as_string(stage, 1, alpha, alpha, texindex);
break;
case TextureStage::CM_add_signed:
pgraph_cat.error() << "TextureStage::CombineMode ADD_SIGNED not yet supported in per-pixel mode.\n";
text << combine_source_as_string(stage, 0, alpha, alpha, texindex);
text << " + ";
text << combine_source_as_string(stage, 1, alpha, alpha, texindex);
if (alpha) {
text << " - 0.5";
} else {
text << " - float3(0.5, 0.5, 0.5)";
}
break;
case TextureStage::CM_interpolate:
text << "lerp(";