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fix indirect sunlight on clouds

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Xonk 2024-01-01 18:36:43 -05:00
parent be97337c7b
commit 841ca3559f
1 changed files with 5 additions and 4 deletions
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9
shaders/lib/volumetricClouds.glsl
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@ -259,6 +259,7 @@ vec4 renderLayer(
in vec3 skyLightCol, in vec3 skyLightCol,
in vec3 sunScatter, in vec3 sunScatter,
in vec3 sunMultiScatter, in vec3 sunMultiScatter,
in vec3 indirectScatter,
in float distantfog, in float distantfog,
bool notVisible bool notVisible
){ ){
@ -339,7 +340,7 @@ if(layer == 2){
#if defined CloudLayer1 && defined CloudLayer0 #if defined CloudLayer1 && defined CloudLayer0
// a horrible approximation of direct light indirectly hitting the lower layer of clouds after scattering through/bouncing off the upper layer. // a horrible approximation of direct light indirectly hitting the lower layer of clouds after scattering through/bouncing off the upper layer.
lighting += sunScatter * exp((skyScatter*skyScatter) * cumulus * -35.0) * upperLayerOcclusion * exp(-20.0 * pow(abs(upperLayerOcclusion - 0.3),2)); lighting += indirectScatter * exp((skyScatter*skyScatter) * cumulus * -35.0) * upperLayerOcclusion * exp(-20.0 * pow(abs(upperLayerOcclusion - 0.3),2));
#endif #endif
COLOR += max(lighting - lighting*exp(-mult*muE),0.0) * TOTAL_EXTINCTION; COLOR += max(lighting - lighting*exp(-mult*muE),0.0) * TOTAL_EXTINCTION;
@ -458,7 +459,7 @@ vec4 renderClouds(
#endif #endif
#ifdef CloudLayer0 #ifdef CloudLayer0
vec4 layer0 = renderLayer(0, layer0_start, dV_view, mult, Dither.x, maxIT_clouds, MinHeight, MaxHeight, dV_Sun, CloudLayer0_density, SkyColor, directScattering, directMultiScattering, distantfog, false); vec4 layer0 = renderLayer(0, layer0_start, dV_view, mult, Dither.x, maxIT_clouds, MinHeight, MaxHeight, dV_Sun, CloudLayer0_density, SkyColor, directScattering, directMultiScattering, sunIndirectScattering, distantfog, false);
total_extinction *= layer0.a; total_extinction *= layer0.a;
// stop overdraw. // stop overdraw.
@ -470,7 +471,7 @@ vec4 renderClouds(
#endif #endif
#ifdef CloudLayer1 #ifdef CloudLayer1
vec4 layer1 = renderLayer(1, layer1_start, dV_view, mult, Dither.x, maxIT_clouds, MinHeight1, MaxHeight1, dV_Sun, CloudLayer1_density, SkyColor, directScattering, directMultiScattering, distantfog, notVisible); vec4 layer1 = renderLayer(1, layer1_start, dV_view, mult, Dither.x, maxIT_clouds, MinHeight1, MaxHeight1, dV_Sun, CloudLayer1_density, SkyColor, directScattering, directMultiScattering,sunIndirectScattering, distantfog, notVisible);
total_extinction *= layer1.a; total_extinction *= layer1.a;
// stop overdraw. // stop overdraw.
@ -478,7 +479,7 @@ vec4 renderClouds(
#endif #endif
#ifdef CloudLayer2 #ifdef CloudLayer2
vec4 layer2 = renderLayer(2, layer2_start, dV_view_Alto, mult_alto, Dither.x, maxIT_clouds, Height2, Height2, dV_Sun, CloudLayer2_density, SkyColor, directScattering, directMultiScattering, distantfog, altoNotVisible); vec4 layer2 = renderLayer(2, layer2_start, dV_view_Alto, mult_alto, Dither.x, maxIT_clouds, Height2, Height2, dV_Sun, CloudLayer2_density, SkyColor, directScattering, directMultiScattering,sunIndirectScattering, distantfog, altoNotVisible);
total_extinction *= layer2.a; total_extinction *= layer2.a;
#endif #endif