@babylonjs/core/Shaders/ShadersInclude/pbrDirectLightingSetupFunctions.js

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// Do not edit.
import { ShaderStore } from "../../Engines/shaderStore.js";
import "./ltcHelperFunctions.js";
const name = "pbrDirectLightingSetupFunctions";
const shader = `struct preLightingInfo
{vec3 lightOffset;float lightDistanceSquared;float lightDistance;float attenuation;vec3 L;vec3 H;float NdotV;float NdotLUnclamped;float NdotL;float VdotH;float LdotV;float roughness;float diffuseRoughness;vec3 surfaceAlbedo;
#ifdef IRIDESCENCE
float iridescenceIntensity;
#endif
#if defined(AREALIGHTUSED) && defined(AREALIGHTSUPPORTED)
vec3 areaLightDiffuse;
#ifdef SPECULARTERM
vec3 areaLightSpecular;vec4 areaLightFresnel;
#endif
#endif
};preLightingInfo computePointAndSpotPreLightingInfo(vec4 lightData,vec3 V,vec3 N,vec3 posW) {preLightingInfo result;result.lightOffset=lightData.xyz-posW;result.lightDistanceSquared=dot(result.lightOffset,result.lightOffset);result.lightDistance=sqrt(result.lightDistanceSquared);result.L=normalize(result.lightOffset);result.H=normalize(V+result.L);result.VdotH=saturate(dot(V,result.H));result.NdotLUnclamped=dot(N,result.L);result.NdotL=saturateEps(result.NdotLUnclamped);result.LdotV=0.;result.roughness=0.;result.diffuseRoughness=0.;result.surfaceAlbedo=vec3(0.);return result;}
preLightingInfo computeDirectionalPreLightingInfo(vec4 lightData,vec3 V,vec3 N) {preLightingInfo result;result.lightDistance=length(-lightData.xyz);result.L=normalize(-lightData.xyz);result.H=normalize(V+result.L);result.VdotH=saturate(dot(V,result.H));result.NdotLUnclamped=dot(N,result.L);result.NdotL=saturateEps(result.NdotLUnclamped);result.LdotV=dot(result.L,V);result.roughness=0.;result.diffuseRoughness=0.;result.surfaceAlbedo=vec3(0.);return result;}
preLightingInfo computeHemisphericPreLightingInfo(vec4 lightData,vec3 V,vec3 N) {preLightingInfo result;result.NdotL=dot(N,lightData.xyz)*0.5+0.5;result.NdotL=saturateEps(result.NdotL);result.NdotLUnclamped=result.NdotL;
#ifdef SPECULARTERM
result.L=normalize(lightData.xyz);result.H=normalize(V+result.L);result.VdotH=saturate(dot(V,result.H));
#endif
result.LdotV=0.;result.roughness=0.;result.diffuseRoughness=0.;result.surfaceAlbedo=vec3(0.);return result;}
#if defined(AREALIGHTUSED) && defined(AREALIGHTSUPPORTED)
#include<ltcHelperFunctions>
uniform sampler2D areaLightsLTC1Sampler;uniform sampler2D areaLightsLTC2Sampler;preLightingInfo computeAreaPreLightingInfo(sampler2D ltc1,sampler2D ltc2,vec3 viewDirectionW,vec3 vNormal,vec3 vPosition,vec4 lightData,vec3 halfWidth,vec3 halfHeight,float roughness )
{preLightingInfo result;result.lightOffset=lightData.xyz-vPosition;result.lightDistanceSquared=dot(result.lightOffset,result.lightOffset);result.lightDistance=sqrt(result.lightDistanceSquared);areaLightData data=computeAreaLightSpecularDiffuseFresnel(ltc1,ltc2,viewDirectionW,vNormal,vPosition,lightData.xyz,halfWidth,halfHeight,roughness);
#ifdef SPECULARTERM
result.areaLightFresnel=data.Fresnel;result.areaLightSpecular=data.Specular;
#endif
result.areaLightDiffuse=data.Diffuse;result.LdotV=0.;result.roughness=0.;result.diffuseRoughness=0.;result.surfaceAlbedo=vec3(0.);return result;}
#endif
`;
// Sideeffect
if (!ShaderStore.IncludesShadersStore[name]) {
    ShaderStore.IncludesShadersStore[name] = shader;
}
/** @internal */
export const pbrDirectLightingSetupFunctions = { name, shader };
//# sourceMappingURL=pbrDirectLightingSetupFunctions.js.map