136 lines
3.6 KiB
GLSL
136 lines
3.6 KiB
GLSL
#ifndef _LIGHT_MOBILE_GLSL_
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#define _LIGHT_MOBILE_GLSL_
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#include "compiled.inc"
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#include "std/brdf.glsl"
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#ifdef _ShadowMap
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#include "std/shadows.glsl"
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#endif
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#ifdef _Spot
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#include "std/light_common.glsl"
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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 _SingleAtlas
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//!uniform sampler2DShadow shadowMapAtlas;
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#endif
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uniform vec2 lightProj;
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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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#else
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uniform samplerCubeShadow shadowMapPoint[4];
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#endif
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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[maxLightsCluster];
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#endif
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uniform mat4 LWVPSpotArray[maxLightsCluster];
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#endif
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#endif
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#endif
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vec3 sampleLight(const vec3 p, const vec3 n, const vec3 v, const float dotNV, const vec3 lp, const vec3 lightCol,
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const vec3 albedo, const float rough, const float spec, const vec3 f0
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#ifdef _ShadowMap
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, int index, float bias, bool receiveShadow
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#endif
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#ifdef _Spot
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, bool isSpot, float spotSize, float spotBlend, vec3 spotDir, vec2 scale, vec3 right
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#endif
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) {
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vec3 ld = lp - p;
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vec3 l = normalize(ld);
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vec3 h = normalize(v + l);
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float dotNH = max(0.0, dot(n, h));
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float dotVH = max(0.0, dot(v, h));
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float dotNL = max(0.0, dot(n, l));
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vec3 direct = lambertDiffuseBRDF(albedo, dotNL) +
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specularBRDF(f0, rough, dotNL, dotNH, dotNV, dotVH) * spec;
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direct *= lightCol;
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direct *= attenuate(distance(p, lp));
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#ifdef _Spot
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if (isSpot) {
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direct *= spotlightMask(l, spotDir, right, scale, spotSize, spotBlend);
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#ifdef _ShadowMap
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if (receiveShadow) {
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#ifdef _SinglePoint
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vec4 lPos = LWVPSpot[0] * vec4(p + n * bias * 10, 1.0);
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direct *= shadowTest(shadowMapSpot[0], lPos.xyz / lPos.w, bias);
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#endif
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#ifdef _Clusters
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vec4 lPos = LWVPSpotArray[index] * vec4(p + n * bias * 10, 1.0);
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#ifdef _ShadowMapAtlas
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direct *= shadowTest(
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#ifndef _SingleAtlas
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shadowMapAtlasSpot
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#else
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shadowMapAtlas
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#endif
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, lPos.xyz / lPos.w, bias
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);
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#else
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if (index == 0) direct *= shadowTest(shadowMapSpot[0], lPos.xyz / lPos.w, bias);
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else if (index == 1) direct *= shadowTest(shadowMapSpot[1], lPos.xyz / lPos.w, bias);
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else if (index == 2) direct *= shadowTest(shadowMapSpot[2], lPos.xyz / lPos.w, bias);
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else if (index == 3) direct *= shadowTest(shadowMapSpot[3], lPos.xyz / lPos.w, bias);
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#endif
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#endif
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}
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#endif
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return direct;
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}
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#endif
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#ifdef _ShadowMap
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if (receiveShadow) {
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#ifdef _SinglePoint
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#ifndef _Spot
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direct *= PCFCube(shadowMapPoint[0], ld, -l, bias, lightProj, n);
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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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direct *= PCFFakeCube(
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#ifndef _SingleAtlas
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shadowMapAtlasPoint
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#else
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shadowMapAtlas
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#endif
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, ld, -l, bias, lightProj, n, index
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);
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#else
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if (index == 0) direct *= PCFCube(shadowMapPoint[0], ld, -l, bias, lightProj, n);
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else if (index == 1) direct *= PCFCube(shadowMapPoint[1], ld, -l, bias, lightProj, n);
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else if (index == 2) direct *= PCFCube(shadowMapPoint[2], ld, -l, bias, lightProj, n);
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else if (index == 3) direct *= PCFCube(shadowMapPoint[3], ld, -l, bias, lightProj, n);
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#endif
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#endif
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}
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#endif
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return direct;
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}
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#endif
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