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playcanvas

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Open-source WebGL/WebGPU 3D engine for the web

playcanvas.com

playcanvas/engine

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declare const _default: "\n\nfn _getShadowCoordPerspZbuffer(shadowMatrix: mat4x4f, shadowParams: vec4f, wPos: vec3f) -> vec3f {\n var projPos = shadowMatrix * vec4f(wPos, 1.0);\n return projPos.xyz / projPos.w;\n // depth bias is already applied on render\n}\n\nfn getShadowCoordPerspZbufferNormalOffset(shadowMatrix: mat4x4f, shadowParams: vec4f, normal: vec3f) -> vec3f {\n let wPos: vec3f = vPositionW + normal * shadowParams.y;\n return _getShadowCoordPerspZbuffer(shadowMatrix, shadowParams, wPos);\n}\n\nfn normalOffsetPointShadow(shadowParams: vec4f, lightPos: vec3f, lightDir: vec3f, lightDirNorm: vec3f, normal: vec3f) -> vec3f {\n let distScale: f32 = length(lightDir);\n let wPos: vec3f = vPositionW + normal * shadowParams.y * clamp(1.0 - dot(normal, -lightDirNorm), 0.0, 1.0) * distScale; //0.02\n let dir: vec3f = wPos - lightPos;\n return dir;\n}\n\n#if defined(CLUSTER_SHADOW_TYPE_PCF1)\n\n fn getShadowOmniClusteredPCF1(shadowMap: texture_depth_2d, shadowMapSampler: sampler_comparison, shadowParams: vec4f, omniAtlasViewport: vec3f, shadowEdgePixels: f32, lightDir: vec3f) -> f32 {\n\n let shadowTextureResolution: f32 = shadowParams.x;\n let uv: vec2f = getCubemapAtlasCoordinates(omniAtlasViewport, shadowEdgePixels, shadowTextureResolution, lightDir);\n\n let shadowZ: f32 = length(lightDir) * shadowParams.w + shadowParams.z;\n return textureSampleCompareLevel(shadowMap, shadowMapSampler, uv, shadowZ);\n }\n\n#endif\n\n#if defined(CLUSTER_SHADOW_TYPE_PCF3)\n\n fn getShadowOmniClusteredPCF3(shadowMap: texture_depth_2d, shadowMapSampler: sampler_comparison, shadowParams: vec4f, omniAtlasViewport: vec3f, shadowEdgePixels: f32, lightDir: vec3f) -> f32 {\n\n let shadowTextureResolution: f32 = shadowParams.x;\n let uv: vec2f = getCubemapAtlasCoordinates(omniAtlasViewport, shadowEdgePixels, shadowTextureResolution, lightDir);\n\n let shadowZ: f32 = length(lightDir) * shadowParams.w + shadowParams.z;\n let shadowCoord: vec3f = vec3f(uv, shadowZ);\n return getShadowPCF3x3(shadowMap, shadowMapSampler, shadowCoord, shadowParams);\n }\n\n#endif\n\n#if defined(CLUSTER_SHADOW_TYPE_PCF5)\n\n fn getShadowOmniClusteredPCF5(shadowMap: texture_depth_2d, shadowMapSampler: sampler_comparison, shadowParams: vec4f, omniAtlasViewport: vec3f, shadowEdgePixels: f32, lightDir: vec3f) -> f32 {\n\n let shadowTextureResolution: f32 = shadowParams.x;\n let uv: vec2f = getCubemapAtlasCoordinates(omniAtlasViewport, shadowEdgePixels, shadowTextureResolution, lightDir);\n\n let shadowZ: f32 = length(lightDir) * shadowParams.w + shadowParams.z;\n let shadowCoord: vec3f = vec3f(uv, shadowZ);\n return getShadowPCF5x5(shadowMap, shadowMapSampler, shadowCoord, shadowParams);\n }\n\n#endif\n\n// Clustered Spot Sampling using atlas\n\n#if defined(CLUSTER_SHADOW_TYPE_PCF1)\n\n fn getShadowSpotClusteredPCF1(shadowMap: texture_depth_2d, shadowMapSampler: sampler_comparison, shadowCoord: vec3f, shadowParams: vec4f) -> f32 {\n return textureSampleCompareLevel(shadowMap, shadowMapSampler, shadowCoord.xy, shadowCoord.z);\n }\n\n#endif\n\n #if defined(CLUSTER_SHADOW_TYPE_PCF3)\n\n fn getShadowSpotClusteredPCF3(shadowMap: texture_depth_2d, shadowMapSampler: sampler_comparison, shadowCoord: vec3f, shadowParams: vec4f) -> f32 {\n return getShadowSpotPCF3x3(shadowMap, shadowMapSampler, shadowCoord, shadowParams);\n }\n\n#endif\n\n #if defined(CLUSTER_SHADOW_TYPE_PCF5)\n\n fn getShadowSpotClusteredPCF5(shadowMap: texture_depth_2d, shadowMapSampler: sampler_comparison, shadowCoord: vec3f, shadowParams: vec4f) -> f32 {\n return getShadowPCF5x5(shadowMap, shadowMapSampler, shadowCoord, shadowParams);\n }\n\n#endif\n"; export default _default;