//phong #define USE_UV #define USE_BUMPMAP uniform sampler2D u_numberBumpMap; varying vec2 vUvOverlapped; varying vec2 vUvPacked; uniform vec3 diffuse; uniform vec3 emissive; uniform vec3 specular; uniform float shininess; uniform float opacity; uniform float hiddenness; uniform sampler2D u_numberMap; uniform vec3 number; uniform float dissolve; #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include // clipped from bumpmap_pars_fragment #ifdef USE_BUMPMAP uniform sampler2D bumpMap; uniform float bumpScale; // Bump Mapping Unparametrized Surfaces on the GPU by Morten S. Mikkelsen // https://mmikk.github.io/papers3d/mm_sfgrad_bump.pdf // Evaluate the derivative of the height w.r.t. screen-space using forward differencing (listing 2) vec2 dHdxy_fwd() { // apply hiddeness to bump map vec2 dSTdx = dFdx(vUv); vec2 dSTdy = dFdy(vUv); vec2 dSTdxP = dFdx(vUvPacked); vec2 dSTdyP = dFdy(vUvPacked); float tex1 = 0.5; float tex2 = 0.5; float tex3 = 0.5; tex1 = mix(tex1, texture2D(bumpMap, vUvPacked).x, texture2D(bumpMap, vUvPacked).a) ; tex2 = mix(tex2, texture2D(bumpMap, vUvPacked + dSTdxP).x, texture2D(bumpMap, vUvPacked).a); tex3 = mix(tex3, texture2D(bumpMap, vUvPacked + dSTdyP).x, texture2D(bumpMap, vUvPacked).a); tex1 = mix(tex1, texture2D(u_numberBumpMap, vUv).x, texture2D(u_numberBumpMap, vUv).a * (1.0 - hiddenness)); tex2 = mix(tex2, texture2D(u_numberBumpMap, vUv + dSTdx).x, texture2D(u_numberBumpMap, vUv + dSTdx).a * (1.0 - hiddenness)); tex3 = mix(tex3, texture2D(u_numberBumpMap, vUv + dSTdy).x, texture2D(u_numberBumpMap, vUv + dSTdy).a * (1.0 - hiddenness)); float Hll = bumpScale * tex1; float dBx = bumpScale * tex2 - Hll; float dBy = bumpScale * tex3 - Hll; return vec2(dBx, dBy); } vec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) { // Workaround for Adreno 3XX dFd*( vec3 ) bug. See #9988 vec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) ); vec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) ); vec3 vN = surf_norm; // normalized vec3 R1 = cross( vSigmaY, vN ); vec3 R2 = cross( vN, vSigmaX ); float fDet = dot( vSigmaX, R1 ) * faceDirection; vec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 ); return normalize( abs( fDet ) * surf_norm - vGrad ); } #endif #include #include #include #include float rand2(vec2 c){ return fract(sin(dot(c.xy ,vec2(12.9898,78.233))) * 43758.5453); } float noise(vec2 p, float freq ){ float unit = 128./freq; vec2 ij = floor(p/unit); vec2 xy = mod(p,unit)/unit; //xy = 3.*xy*xy-2.*xy*xy*xy; xy = .5*(1.-cos(3.1415*xy)); float a = rand2((ij+vec2(0.,0.))); float b = rand2((ij+vec2(1.,0.))); float c = rand2((ij+vec2(0.,1.))); float d = rand2((ij+vec2(1.,1.))); float x1 = mix(a, b, xy.x); float x2 = mix(c, d, xy.x); return mix(x1, x2, xy.y); } float pNoise(vec2 p, int res){ float persistance = .5; float n = 0.; float normK = 0.; float f = 4.; float amp = 2.; int iCount = 0; for (int i = 0; i<50; i++){ n+=amp*noise(p, f); f*=2.; normK+=amp; amp*=persistance; if (iCount == res) break; iCount++; } float nf = n/normK; return nf*nf*nf*nf; } void main(){ if( clamp(pNoise( gl_FragCoord.xy, 1), 0.0, 1.0 ) > 1.0-dissolve ) discard; #include vec4 diffuseColor = vec4(diffuse, opacity); ReflectedLight reflectedLight = ReflectedLight(vec3(0.0), vec3(0.0), vec3(0.0), vec3(0.0)); vec3 totalEmissiveRadiance = emissive; #include #ifdef USE_MAP vec4 sampledDiffuseColor = texture2D( map, vUvPacked ); #ifdef DECODE_VIDEO_TEXTURE // inline sRGB decode (TODO: Remove this code when https://crbug.com/1256340 is solved) sampledDiffuseColor = vec4( mix( pow( sampledDiffuseColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), sampledDiffuseColor.rgb * 0.0773993808, vec3( lessThanEqual( sampledDiffuseColor.rgb, vec3( 0.04045 ) ) ) ), sampledDiffuseColor.w ); #endif diffuseColor *= sampledDiffuseColor; #endif vec4 u_numberMapIn = texture2D(u_numberMap, vUv); // adjust color of numbers u_numberMapIn.rgb *= number; // overlay number map and apply hiddenness diffuseColor.rgb = mix(diffuseColor.rgb, u_numberMapIn.rgb, u_numberMapIn.a * (1.0 - hiddenness)); #include #include #include #include #include #include #include // accumulation #include #include #include #include // modulation #include vec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance; #include #include #include #include #include #include #include }

Snow 1.0.0

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