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author | Subv <subv2112@gmail.com> | 2017-06-09 21:55:54 +0200 |
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committer | wwylele <wwylele@gmail.com> | 2017-07-11 18:39:15 +0200 |
commit | 10b0bea06008fea89564dc5ef8895c0274f8ef18 (patch) | |
tree | d32aea17963c7e01ad447270423ca22475f1cc34 /src/video_core/swrasterizer/rasterizer.cpp | |
parent | SwRasterizer: Calculate specular_1 for fragment lighting. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/video_core/swrasterizer/rasterizer.cpp | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/src/video_core/swrasterizer/rasterizer.cpp b/src/video_core/swrasterizer/rasterizer.cpp index e0c326a4a..2d1daa24a 100644 --- a/src/video_core/swrasterizer/rasterizer.cpp +++ b/src/video_core/swrasterizer/rasterizer.cpp @@ -310,7 +310,31 @@ std::tuple<Math::Vec4<u8>, Math::Vec4<u8>> ComputeFragmentsColors(const Math::Qu Math::Vec3<float> specular_1 = d1_lut_value * refl_value * light_config.specular_1.ToVec3f(); - // TODO(Subv): Fresnel + if (lighting.config1.disable_lut_fr == 0 && + LightingRegs::IsLightingSamplerSupported( + lighting.config0.config, LightingRegs::LightingSampler::Fresnel)) { + + // Lookup fresnel LUT value + float index = GetLutIndex(num, lighting.lut_input.fr.Value(), lighting.abs_lut_input.disable_fr == 0); + + float scale = lighting.lut_scale.GetScale(lighting.lut_scale.fr); + + float lut_value = scale * LookupLightingLut(static_cast<size_t>(LightingRegs::LightingSampler::Fresnel), index); + + // Enabled for difffuse lighting alpha component + if (lighting.config0.fresnel_selector == LightingRegs::LightingFresnelSelector::PrimaryAlpha || + lighting.config0.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) { + diffuse_sum.a() *= lut_value; + } + + // Enabled for the specular lighting alpha component + if (lighting.config0.fresnel_selector == + LightingRegs::LightingFresnelSelector::SecondaryAlpha || + lighting.config0.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) { + specular_sum.a() *= lut_value; + } + } + auto diffuse = light_config.diffuse.ToVec3f() * dot_product + light_config.ambient.ToVec3f(); diffuse_sum += Math::MakeVec(diffuse * dist_atten, 0.0f); |