7463de6140
This was done to undo the hardcoded nature of "receiveShadows", which doesn't play nice when you have multiple lights of the same type and one or several have cast_shadow set to false. By simply "passing" the cast_shadow parameter within the lightArray it was possible to detect lights that don't cast shadows before actually wasting gpu cycles to render shadows with garbage data. Support for deferred desktop and mobile, and forward was added.
487 lines
10 KiB
GLSL
487 lines
10 KiB
GLSL
#version 450
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#include "compiled.inc"
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#include "std/gbuffer.glsl"
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#ifdef _Clusters
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#include "std/clusters.glsl"
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#endif
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#ifdef _Irr
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#include "std/shirr.glsl"
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#endif
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#ifdef _VoxelAOvar
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#include "std/conetrace.glsl"
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#endif
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#ifdef _SSS
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#include "std/sss.glsl"
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#endif
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#ifdef _SSRS
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#include "std/ssrs.glsl"
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#endif
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uniform sampler2D gbufferD;
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uniform sampler2D gbuffer0;
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uniform sampler2D gbuffer1;
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uniform sampler2D gbuffer2;
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#ifdef _VoxelAOvar
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uniform sampler3D voxels;
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#endif
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#ifdef _VoxelGITemporal
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uniform sampler3D voxelsLast;
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uniform float voxelBlend;
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#endif
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#ifdef _VoxelGICam
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uniform vec3 eyeSnap;
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#endif
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uniform float envmapStrength;
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#ifdef _Irr
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uniform vec4 shirr[7];
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#endif
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#ifdef _Brdf
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uniform sampler2D senvmapBrdf;
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#endif
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#ifdef _Rad
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uniform sampler2D senvmapRadiance;
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uniform int envmapNumMipmaps;
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#endif
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#ifdef _EnvCol
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uniform vec3 backgroundCol;
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#endif
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#ifdef _SSAO
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uniform sampler2D ssaotex;
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#endif
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#ifdef _SSS
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uniform vec2 lightPlane;
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#endif
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#ifdef _SSRS
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//!uniform mat4 VP;
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uniform mat4 invVP;
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#endif
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#ifdef _LightIES
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//!uniform sampler2D texIES;
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#endif
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#ifdef _SMSizeUniform
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//!uniform vec2 smSizeUniform;
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#endif
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#ifdef _LTC
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//!uniform vec3 lightArea0;
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//!uniform vec3 lightArea1;
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//!uniform vec3 lightArea2;
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//!uniform vec3 lightArea3;
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//!uniform sampler2D sltcMat;
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//!uniform sampler2D sltcMag;
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#ifdef _ShadowMap
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#ifdef _SinglePoint
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//!uniform sampler2DShadow shadowMapSpot[1];
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//!uniform mat4 LWVPSpot[1];
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#endif
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#ifdef _Clusters
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//!uniform sampler2DShadow shadowMapSpot[4];
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//!uniform mat4 LWVPSpotArray[4];
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#endif
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#endif
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#endif
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uniform vec2 cameraProj;
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uniform vec3 eye;
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uniform vec3 eyeLook;
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#ifdef _Clusters
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uniform vec4 lightsArray[maxLights * 3];
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#ifdef _Spot
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uniform vec4 lightsArraySpot[maxLights];
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#endif
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uniform sampler2D clustersData;
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uniform vec2 cameraPlane;
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#endif
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#ifdef _ShadowMap
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#ifdef _SinglePoint
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#ifdef _Spot
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//!uniform sampler2DShadow shadowMapSpot[1];
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//!uniform mat4 LWVPSpot[1];
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#else
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//!uniform samplerCubeShadow shadowMapPoint[1];
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//!uniform vec2 lightProj;
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#endif
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#endif
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#ifdef _Clusters
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#ifdef _ShadowMapAtlas
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#ifdef _SingleAtlas
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uniform sampler2DShadow shadowMapAtlas;
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#endif
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#endif
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#ifdef _ShadowMapAtlas
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#ifndef _SingleAtlas
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//!uniform sampler2DShadow shadowMapAtlasPoint;
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#endif
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//!uniform vec4 pointLightDataArray[4];
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#else
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//!uniform samplerCubeShadow shadowMapPoint[4];
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#endif
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//!uniform vec2 lightProj;
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#ifdef _Spot
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#ifdef _ShadowMapAtlas
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#ifndef _SingleAtlas
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//!uniform sampler2DShadow shadowMapAtlasSpot;
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#endif
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#else
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//!uniform sampler2DShadow shadowMapSpot[4];
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#endif
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//!uniform mat4 LWVPSpotArray[4];
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#endif
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#endif
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#endif
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#ifdef _Sun
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uniform vec3 sunDir;
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uniform vec3 sunCol;
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#ifdef _ShadowMap
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#ifdef _ShadowMapAtlas
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#ifndef _SingleAtlas
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uniform sampler2DShadow shadowMapAtlasSun;
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#endif
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#else
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uniform sampler2DShadow shadowMap;
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#endif
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uniform float shadowsBias;
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#ifdef _CSM
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//!uniform vec4 casData[shadowmapCascades * 4 + 4];
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#else
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uniform mat4 LWVP;
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#endif
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#endif // _ShadowMap
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#endif
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#ifdef _SinglePoint // Fast path for single light
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uniform vec3 pointPos;
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uniform vec3 pointCol;
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#ifdef _ShadowMap
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uniform float pointBias;
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#endif
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#ifdef _Spot
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uniform vec3 spotDir;
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uniform vec2 spotData;
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#endif
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#endif
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#ifdef _LightClouds
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uniform sampler2D texClouds;
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uniform float time;
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#endif
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#include "std/light.glsl"
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in vec2 texCoord;
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in vec3 viewRay;
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out vec4 fragColor;
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void main() {
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vec4 g0 = textureLod(gbuffer0, texCoord, 0.0); // Normal.xy, metallic/roughness, matid
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vec3 n;
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n.z = 1.0 - abs(g0.x) - abs(g0.y);
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n.xy = n.z >= 0.0 ? g0.xy : octahedronWrap(g0.xy);
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n = normalize(n);
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float roughness = g0.b;
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float metallic;
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uint matid;
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unpackFloatInt16(g0.a, metallic, matid);
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vec4 g1 = textureLod(gbuffer1, texCoord, 0.0); // Basecolor.rgb, spec/occ
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vec2 occspec = unpackFloat2(g1.a);
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vec3 albedo = surfaceAlbedo(g1.rgb, metallic); // g1.rgb - basecolor
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vec3 f0 = surfaceF0(g1.rgb, metallic);
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float depth = textureLod(gbufferD, texCoord, 0.0).r * 2.0 - 1.0;
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vec3 p = getPos(eye, eyeLook, normalize(viewRay), depth, cameraProj);
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vec3 v = normalize(eye - p);
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float dotNV = max(dot(n, v), 0.0);
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vec4 g2 = textureLod(gbuffer2, texCoord, 0.0);
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#ifdef _MicroShadowing
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occspec.x = mix(1.0, occspec.x, dotNV); // AO Fresnel
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#endif
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#ifdef _Brdf
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vec2 envBRDF = textureLod(senvmapBrdf, vec2(roughness, 1.0 - dotNV), 0.0).xy;
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#endif
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// Envmap
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#ifdef _Irr
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vec3 envl = shIrradiance(n, shirr);
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if (g2.b < 0.5) {
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envl = envl;
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} else {
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envl = vec3(1.0);
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}
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#ifdef _EnvTex
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envl /= PI;
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#endif
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#else
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vec3 envl = vec3(1.0);
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#endif
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#ifdef _Rad
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vec3 reflectionWorld = reflect(-v, n);
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float lod = getMipFromRoughness(roughness, envmapNumMipmaps);
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vec3 prefilteredColor = textureLod(senvmapRadiance, envMapEquirect(reflectionWorld), lod).rgb;
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#endif
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#ifdef _EnvLDR
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envl.rgb = pow(envl.rgb, vec3(2.2));
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#ifdef _Rad
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prefilteredColor = pow(prefilteredColor, vec3(2.2));
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#endif
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#endif
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envl.rgb *= albedo;
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#ifdef _Rad // Indirect specular
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envl.rgb += prefilteredColor * (f0 * envBRDF.x + envBRDF.y) * 1.5 * occspec.y;
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#else
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#ifdef _EnvCol
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envl.rgb += backgroundCol * surfaceF0(g1.rgb, metallic); // f0
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#endif
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#endif
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envl.rgb *= envmapStrength * occspec.x;
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#ifdef _VoxelAOvar
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#ifdef _VoxelGICam
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vec3 voxpos = (p - eyeSnap) / voxelgiHalfExtents;
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#else
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vec3 voxpos = p / voxelgiHalfExtents;
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#endif
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#ifndef _VoxelAONoTrace
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#ifdef _VoxelGITemporal
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envl.rgb *= 1.0 - (traceAO(voxpos, n, voxels) * voxelBlend +
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traceAO(voxpos, n, voxelsLast) * (1.0 - voxelBlend));
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#else
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envl.rgb *= 1.0 - traceAO(voxpos, n, voxels);
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#endif
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#endif
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#endif
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fragColor.rgb = envl;
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#ifdef _SSAO
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// #ifdef _RTGI
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// fragColor.rgb *= textureLod(ssaotex, texCoord, 0.0).rgb;
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// #else
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fragColor.rgb *= textureLod(ssaotex, texCoord, 0.0).r;
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// #endif
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#endif
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#ifdef _Emission
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if (matid == 1) {
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fragColor.rgb += g1.rgb; // materialid
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albedo = vec3(0.0);
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}
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#endif
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// Show voxels
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// vec3 origin = vec3(texCoord * 2.0 - 1.0, 0.99);
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// vec3 direction = vec3(0.0, 0.0, -1.0);
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// vec4 color = vec4(0.0f);
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// for(uint step = 0; step < 400 && color.a < 0.99f; ++step) {
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// vec3 point = origin + 0.005 * step * direction;
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// color += (1.0f - color.a) * textureLod(voxels, point * 0.5 + 0.5, 0);
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// }
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// fragColor.rgb += color.rgb;
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// Show SSAO
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// fragColor.rgb = texture(ssaotex, texCoord).rrr;
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#ifdef _Sun
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vec3 sh = normalize(v + sunDir);
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float sdotNH = dot(n, sh);
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float sdotVH = dot(v, sh);
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float sdotNL = dot(n, sunDir);
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float svisibility = 1.0;
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vec3 sdirect = lambertDiffuseBRDF(albedo, sdotNL) +
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specularBRDF(f0, roughness, sdotNL, sdotNH, dotNV, sdotVH) * occspec.y;
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#ifdef _ShadowMap
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#ifdef _CSM
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svisibility = shadowTestCascade(
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#ifdef _ShadowMapAtlas
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#ifndef _SingleAtlas
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shadowMapAtlasSun
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#else
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shadowMapAtlas
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#endif
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#else
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shadowMap
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#endif
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, eye, p + n * shadowsBias * 10, shadowsBias
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);
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#else
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vec4 lPos = LWVP * vec4(p + n * shadowsBias * 100, 1.0);
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if (lPos.w > 0.0) svisibility = shadowTest(
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#ifdef _ShadowMapAtlas
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#ifndef _SingleAtlas
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shadowMapAtlasSun
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#else
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shadowMapAtlas
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#endif
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#else
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shadowMap
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#endif
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, lPos.xyz / lPos.w, shadowsBias
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);
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#endif
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#endif
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#ifdef _VoxelAOvar
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#ifdef _VoxelShadow
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svisibility *= 1.0 - traceShadow(voxels, voxpos, sunDir);
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#endif
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#endif
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#ifdef _SSRS
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// vec2 coords = getProjectedCoord(hitCoord);
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// vec2 deltaCoords = abs(vec2(0.5, 0.5) - coords.xy);
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// float screenEdgeFactor = clamp(1.0 - (deltaCoords.x + deltaCoords.y), 0.0, 1.0);
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svisibility *= traceShadowSS(sunDir, p, gbufferD, invVP, eye);
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#endif
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#ifdef _LightClouds
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svisibility *= textureLod(texClouds, vec2(p.xy / 100.0 + time / 80.0), 0.0).r * dot(n, vec3(0,0,1));
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#endif
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#ifdef _MicroShadowing
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svisibility *= sdotNL + 2.0 * occspec.x * occspec.x - 1.0;
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#endif
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fragColor.rgb += sdirect * svisibility * sunCol;
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// #ifdef _Hair // Aniso
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// if (matid == 2) {
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// const float shinyParallel = roughness;
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// const float shinyPerpendicular = 0.1;
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// const vec3 v = vec3(0.99146, 0.11664, 0.05832);
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// vec3 T = abs(dot(n, v)) > 0.99999 ? cross(n, vec3(0.0, 1.0, 0.0)) : cross(n, v);
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// fragColor.rgb = orenNayarDiffuseBRDF(albedo, roughness, dotNV, dotNL, dotVH) + wardSpecular(n, h, dotNL, dotNV, dotNH, T, shinyParallel, shinyPerpendicular) * spec;
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// }
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// #endif
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#ifdef _SSS
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if (matid == 2) {
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#ifdef _CSM
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int casi, casindex;
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mat4 LWVP = getCascadeMat(distance(eye, p), casi, casindex);
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#endif
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fragColor.rgb += fragColor.rgb * SSSSTransmittance(
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LWVP, p, n, sunDir, lightPlane.y,
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#ifdef _ShadowMapAtlas
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#ifndef _SingleAtlas
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shadowMapAtlasSun
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#else
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shadowMapAtlas
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#endif
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#else
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shadowMap
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#endif
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);
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}
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#endif
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#endif // _Sun
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#ifdef _SinglePoint
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fragColor.rgb += sampleLight(
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p, n, v, dotNV, pointPos, pointCol, albedo, roughness, occspec.y, f0
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#ifdef _ShadowMap
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, 0, pointBias, true
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#endif
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#ifdef _Spot
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, true, spotData.x, spotData.y, spotDir
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#endif
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#ifdef _VoxelAOvar
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#ifdef _VoxelShadow
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, voxels, voxpos
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#endif
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#endif
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#ifdef _MicroShadowing
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, occspec.x
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#endif
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#ifdef _SSRS
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, gbufferD, invVP, eye
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#endif
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);
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#ifdef _Spot
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#ifdef _SSS
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if (matid == 2) fragColor.rgb += fragColor.rgb * SSSSTransmittance(LWVPSpot0, p, n, normalize(pointPos - p), lightPlane.y, shadowMapSpot[0]);
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#endif
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#endif
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#endif
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#ifdef _Clusters
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float viewz = linearize(depth * 0.5 + 0.5, cameraProj);
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int clusterI = getClusterI(texCoord, viewz, cameraPlane);
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int numLights = int(texelFetch(clustersData, ivec2(clusterI, 0), 0).r * 255);
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#ifdef HLSL
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viewz += textureLod(clustersData, vec2(0.0), 0.0).r * 1e-9; // TODO: krafix bug, needs to generate sampler
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#endif
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#ifdef _Spot
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int numSpots = int(texelFetch(clustersData, ivec2(clusterI, 1 + maxLightsCluster), 0).r * 255);
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int numPoints = numLights - numSpots;
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#endif
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for (int i = 0; i < min(numLights, maxLightsCluster); i++) {
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int li = int(texelFetch(clustersData, ivec2(clusterI, i + 1), 0).r * 255);
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fragColor.rgb += sampleLight(
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p,
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n,
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v,
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dotNV,
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lightsArray[li * 3].xyz, // lp
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lightsArray[li * 3 + 1].xyz, // lightCol
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albedo,
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roughness,
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occspec.y,
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f0
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#ifdef _ShadowMap
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// light index, shadow bias, cast_shadows
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, li, lightsArray[li * 3 + 2].x, lightsArray[li * 3 + 2].z != 0.0
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#endif
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#ifdef _Spot
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, lightsArray[li * 3 + 2].y != 0.0
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, lightsArray[li * 3 + 2].y // cutoff
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, lightsArraySpot[li].w // cutoff - exponent
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, lightsArraySpot[li].xyz // spotDir
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#endif
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#ifdef _MicroShadowing
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, occspec.x
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#endif
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#ifdef _SSRS
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, gbufferD, invVP, eye
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#endif
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);
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}
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#endif // _Clusters
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fragColor.a = 1.0; // Mark as opaque
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}
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