@babylonjs/viewer/dist/chunks/bumpFragment-D3p_HOgc.esm.min.js

The Babylon Viewer aims to simplify a specific but common Babylon.js use case: loading, viewing, and interacting with a 3D model.

import{S as e}from"./index-Bw2N6w1y.esm.min.js";const a="samplerFragmentDeclaration";e.IncludesShadersStore[a]||(e.IncludesShadersStore[a]="#ifdef _DEFINENAME_\n#if _DEFINENAME_DIRECTUV==1\n#define v_VARYINGNAME_UV vMainUV1\n#elif _DEFINENAME_DIRECTUV==2\n#define v_VARYINGNAME_UV vMainUV2\n#elif _DEFINENAME_DIRECTUV==3\n#define v_VARYINGNAME_UV vMainUV3\n#elif _DEFINENAME_DIRECTUV==4\n#define v_VARYINGNAME_UV vMainUV4\n#elif _DEFINENAME_DIRECTUV==5\n#define v_VARYINGNAME_UV vMainUV5\n#elif _DEFINENAME_DIRECTUV==6\n#define v_VARYINGNAME_UV vMainUV6\n#else\nvarying vec2 v_VARYINGNAME_UV;\n#endif\nuniform sampler2D _SAMPLERNAME_Sampler;\n#endif\n");const n="bumpFragmentMainFunctions";e.IncludesShadersStore[n]||(e.IncludesShadersStore[n]="#if defined(BUMP) || defined(CLEARCOAT_BUMP) || defined(ANISOTROPIC) || defined(DETAIL)\n#if defined(TANGENT) && defined(NORMAL) \nvarying mat3 vTBN;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\nuniform mat4 normalMatrix;\n#if defined(WEBGL2) || defined(WEBGPU)\nmat4 toNormalMatrix(mat4 wMatrix)\n{mat4 ret=inverse(wMatrix);ret=transpose(ret);ret[0][3]=0.;ret[1][3]=0.;ret[2][3]=0.;ret[3]=vec4(0.,0.,0.,1.);return ret;}\n#else\nmat4 toNormalMatrix(mat4 m)\n{float\na00=m[0][0],a01=m[0][1],a02=m[0][2],a03=m[0][3],\na10=m[1][0],a11=m[1][1],a12=m[1][2],a13=m[1][3],\na20=m[2][0],a21=m[2][1],a22=m[2][2],a23=m[2][3],\na30=m[3][0],a31=m[3][1],a32=m[3][2],a33=m[3][3],\nb00=a00*a11-a01*a10,\nb01=a00*a12-a02*a10,\nb02=a00*a13-a03*a10,\nb03=a01*a12-a02*a11,\nb04=a01*a13-a03*a11,\nb05=a02*a13-a03*a12,\nb06=a20*a31-a21*a30,\nb07=a20*a32-a22*a30,\nb08=a20*a33-a23*a30,\nb09=a21*a32-a22*a31,\nb10=a21*a33-a23*a31,\nb11=a22*a33-a23*a32,\ndet=b00*b11-b01*b10+b02*b09+b03*b08-b04*b07+b05*b06;mat4 mi=mat4(\na11*b11-a12*b10+a13*b09,\na02*b10-a01*b11-a03*b09,\na31*b05-a32*b04+a33*b03,\na22*b04-a21*b05-a23*b03,\na12*b08-a10*b11-a13*b07,\na00*b11-a02*b08+a03*b07,\na32*b02-a30*b05-a33*b01,\na20*b05-a22*b02+a23*b01,\na10*b10-a11*b08+a13*b06,\na01*b08-a00*b10-a03*b06,\na30*b04-a31*b02+a33*b00,\na21*b02-a20*b04-a23*b00,\na11*b07-a10*b09-a12*b06,\na00*b09-a01*b07+a02*b06,\na31*b01-a30*b03-a32*b00,\na20*b03-a21*b01+a22*b00)/det;return mat4(mi[0][0],mi[1][0],mi[2][0],mi[3][0],\nmi[0][1],mi[1][1],mi[2][1],mi[3][1],\nmi[0][2],mi[1][2],mi[2][2],mi[3][2],\nmi[0][3],mi[1][3],mi[2][3],mi[3][3]);}\n#endif\n#endif\nvec3 perturbNormalBase(mat3 cotangentFrame,vec3 normal,float scale)\n{\n#ifdef NORMALXYSCALE\nnormal=normalize(normal*vec3(scale,scale,1.0));\n#endif\nreturn normalize(cotangentFrame*normal);}\nvec3 perturbNormal(mat3 cotangentFrame,vec3 textureSample,float scale)\n{return perturbNormalBase(cotangentFrame,textureSample*2.0-1.0,scale);}\nmat3 cotangent_frame(vec3 normal,vec3 p,vec2 uv,vec2 tangentSpaceParams)\n{vec3 dp1=dFdx(p);vec3 dp2=dFdy(p);vec2 duv1=dFdx(uv);vec2 duv2=dFdy(uv);vec3 dp2perp=cross(dp2,normal);vec3 dp1perp=cross(normal,dp1);vec3 tangent=dp2perp*duv1.x+dp1perp*duv2.x;vec3 bitangent=dp2perp*duv1.y+dp1perp*duv2.y;tangent*=tangentSpaceParams.x;bitangent*=tangentSpaceParams.y;float det=max(dot(tangent,tangent),dot(bitangent,bitangent));float invmax=det==0.0 ? 0.0 : inversesqrt(det);return mat3(tangent*invmax,bitangent*invmax,normal);}\n#endif\n");const t="bumpFragmentFunctions";e.IncludesShadersStore[t]||(e.IncludesShadersStore[t]="#if defined(BUMP)\n#include<samplerFragmentDeclaration>(_DEFINENAME_,BUMP,_VARYINGNAME_,Bump,_SAMPLERNAME_,bump)\n#endif\n#if defined(DETAIL)\n#include<samplerFragmentDeclaration>(_DEFINENAME_,DETAIL,_VARYINGNAME_,Detail,_SAMPLERNAME_,detail)\n#endif\n#if defined(BUMP) && defined(PARALLAX)\nconst float minSamples=4.;const float maxSamples=15.;const int iMaxSamples=15;vec2 parallaxOcclusion(vec3 vViewDirCoT,vec3 vNormalCoT,vec2 texCoord,float parallaxScale) {float parallaxLimit=length(vViewDirCoT.xy)/vViewDirCoT.z;parallaxLimit*=parallaxScale;vec2 vOffsetDir=normalize(vViewDirCoT.xy);vec2 vMaxOffset=vOffsetDir*parallaxLimit;float numSamples=maxSamples+(dot(vViewDirCoT,vNormalCoT)*(minSamples-maxSamples));float stepSize=1.0/numSamples;float currRayHeight=1.0;vec2 vCurrOffset=vec2(0,0);vec2 vLastOffset=vec2(0,0);float lastSampledHeight=1.0;float currSampledHeight=1.0;bool keepWorking=true;for (int i=0; i<iMaxSamples; i++)\n{currSampledHeight=texture2D(bumpSampler,texCoord+vCurrOffset).w;if (!keepWorking)\n{}\nelse if (currSampledHeight>currRayHeight)\n{float delta1=currSampledHeight-currRayHeight;float delta2=(currRayHeight+stepSize)-lastSampledHeight;float ratio=delta1/(delta1+delta2);vCurrOffset=(ratio)* vLastOffset+(1.0-ratio)*vCurrOffset;keepWorking=false;}\nelse\n{currRayHeight-=stepSize;vLastOffset=vCurrOffset;\n#ifdef PARALLAX_RHS\nvCurrOffset-=stepSize*vMaxOffset;\n#else\nvCurrOffset+=stepSize*vMaxOffset;\n#endif\nlastSampledHeight=currSampledHeight;}}\nreturn vCurrOffset;}\nvec2 parallaxOffset(vec3 viewDir,float heightScale)\n{float height=texture2D(bumpSampler,vBumpUV).w;vec2 texCoordOffset=heightScale*viewDir.xy*height;\n#ifdef PARALLAX_RHS\nreturn texCoordOffset;\n#else\nreturn -texCoordOffset;\n#endif\n}\n#endif\n");const r="bumpFragment";e.IncludesShadersStore[r]||(e.IncludesShadersStore[r]="vec2 uvOffset=vec2(0.0,0.0);\n#if defined(BUMP) || defined(PARALLAX) || defined(DETAIL)\n#ifdef NORMALXYSCALE\nfloat normalScale=1.0;\n#elif defined(BUMP)\nfloat normalScale=vBumpInfos.y;\n#else\nfloat normalScale=1.0;\n#endif\n#if defined(TANGENT) && defined(NORMAL)\nmat3 TBN=vTBN;\n#elif defined(BUMP)\nvec2 TBNUV=gl_FrontFacing ? vBumpUV : -vBumpUV;mat3 TBN=cotangent_frame(normalW*normalScale,vPositionW,TBNUV,vTangentSpaceParams);\n#else\nvec2 TBNUV=gl_FrontFacing ? vDetailUV : -vDetailUV;mat3 TBN=cotangent_frame(normalW*normalScale,vPositionW,TBNUV,vec2(1.,1.));\n#endif\n#elif defined(ANISOTROPIC)\n#if defined(TANGENT) && defined(NORMAL)\nmat3 TBN=vTBN;\n#else\nvec2 TBNUV=gl_FrontFacing ? vMainUV1 : -vMainUV1;mat3 TBN=cotangent_frame(normalW,vPositionW,TBNUV,vec2(1.,1.));\n#endif\n#endif\n#ifdef PARALLAX\nmat3 invTBN=transposeMat3(TBN);\n#ifdef PARALLAXOCCLUSION\nuvOffset=parallaxOcclusion(invTBN*-viewDirectionW,invTBN*normalW,vBumpUV,vBumpInfos.z);\n#else\nuvOffset=parallaxOffset(invTBN*viewDirectionW,vBumpInfos.z);\n#endif\n#endif\n#ifdef DETAIL\nvec4 detailColor=texture2D(detailSampler,vDetailUV+uvOffset);vec2 detailNormalRG=detailColor.wy*2.0-1.0;float detailNormalB=sqrt(1.-saturate(dot(detailNormalRG,detailNormalRG)));vec3 detailNormal=vec3(detailNormalRG,detailNormalB);\n#endif\n#ifdef BUMP\n#ifdef OBJECTSPACE_NORMALMAP\n#define CUSTOM_FRAGMENT_BUMP_FRAGMENT\nnormalW=normalize(texture2D(bumpSampler,vBumpUV).xyz *2.0-1.0);normalW=normalize(mat3(normalMatrix)*normalW);\n#elif !defined(DETAIL)\nnormalW=perturbNormal(TBN,texture2D(bumpSampler,vBumpUV+uvOffset).xyz,vBumpInfos.y);\n#else\nvec3 bumpNormal=texture2D(bumpSampler,vBumpUV+uvOffset).xyz*2.0-1.0;\n#if DETAIL_NORMALBLENDMETHOD==0 \ndetailNormal.xy*=vDetailInfos.z;vec3 blendedNormal=normalize(vec3(bumpNormal.xy+detailNormal.xy,bumpNormal.z*detailNormal.z));\n#elif DETAIL_NORMALBLENDMETHOD==1 \ndetailNormal.xy*=vDetailInfos.z;bumpNormal+=vec3(0.0,0.0,1.0);detailNormal*=vec3(-1.0,-1.0,1.0);vec3 blendedNormal=bumpNormal*dot(bumpNormal,detailNormal)/bumpNormal.z-detailNormal;\n#endif\nnormalW=perturbNormalBase(TBN,blendedNormal,vBumpInfos.y);\n#endif\n#elif defined(DETAIL)\ndetailNormal.xy*=vDetailInfos.z;normalW=perturbNormalBase(TBN,detailNormal,vDetailInfos.z);\n#endif\n");
//# sourceMappingURL=bumpFragment-D3p_HOgc.esm.min.js.map