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pica/lighting: only apply Fresnel factor for the last light

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wwylele
2017-08-27 07:33:27 +03:00
parent f0e461bf6f
commit 12fbc8c8df
2 changed files with 9 additions and 7 deletions
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7
src/video_core/swrasterizer/lighting.cpp
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@ -230,7 +230,8 @@ std::tuple<Math::Vec4<u8>, Math::Vec4<u8>> ComputeFragmentsColors(
d1_lut_value * refl_value * light_config.specular_1.ToVec3f();
// Fresnel
if (lighting.config1.disable_lut_fr == 0 &&
// Note: only the last entry in the light slots applies the Fresnel factor
if (light_index == lighting.max_light_index && lighting.config1.disable_lut_fr == 0 &&
LightingRegs::IsLightingSamplerSupported(lighting.config0.config,
LightingRegs::LightingSampler::Fresnel)) {
@ -242,14 +243,14 @@ std::tuple<Math::Vec4<u8>, Math::Vec4<u8>> ComputeFragmentsColors(
if (lighting.config0.fresnel_selector ==
LightingRegs::LightingFresnelSelector::PrimaryAlpha ||
lighting.config0.fresnel_selector == LightingRegs::LightingFresnelSelector::Both) {
diffuse_sum.a() *= lut_value;
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;
specular_sum.a() = lut_value;
}
}