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xenia-canary
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Fixing 1/w0 correction.

This commit is contained in:
Ben Vanik 2016-02-21 15:44:09 -08:00
parent 24743bf676
commit ace895d4f3
1 changed files with 3 additions and 3 deletions
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6
src/xenia/gpu/spirv_shader_translator.cc
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@ -279,14 +279,14 @@ std::vector<uint8_t> SpirvShaderTranslator::CompleteTranslation() {
auto p = b.createLoad(pos_);
auto c = b.createBinOp(spv::Op::OpFOrdNotEqual, vec4_bool_type_, vtx_fmt,
b.makeFloatConstant(0.f));
vec4_float_zero_);
// pos.w = vtx_fmt.w != 0.0 ? 1.0 / pos.w : pos.w
// pos.w = vtx_fmt.w == 0.0 ? 1.0 / pos.w : pos.w
auto c_w = b.createCompositeExtract(c, bool_type_, 3);
auto p_w = b.createCompositeExtract(p, float_type_, 3);
auto p_w_inv = b.createBinOp(spv::Op::OpFDiv, float_type_,
b.makeFloatConstant(1.f), p_w);
p_w = b.createTriOp(spv::Op::OpSelect, float_type_, c_w, p_w_inv, p_w);
p_w = b.createTriOp(spv::Op::OpSelect, float_type_, c_w, p_w, p_w_inv);
// pos.xyz = vtx_fmt.xyz != 0.0 ? pos.xyz / pos.w : pos.xyz
auto p_all_w = b.smearScalar(spv::Decoration::DecorationInvariant, p_w,