WebGL Animated Rotating Sphere with an Earth Texture

.block

border: no
height: 512
license: gpl-3.0

README.md

This example demonstrates an animated rotating sphere with a texture map. See this blocks index.ts file for the code.

Libraries used include WebGL Programming Guide Utils, glMatrix, and a custom library I made.

bundle.js

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t[0]=f*n+c*i,t[1]=f*o+c*l,t[2]=f*e+c*u,t[3]=f*i-c*n,t[4]=f*l-c*o,t[5]=f*u-c*e,t[6]=s,t[7]=M,t[8]=h,t},o.scale=function(t,a,r){var n=r[0],o=r[1];return t[0]=n*a[0],t[1]=n*a[1],t[2]=n*a[2],t[3]=o*a[3],t[4]=o*a[4],t[5]=o*a[5],t[6]=a[6],t[7]=a[7],t[8]=a[8],t},o.fromTranslation=function(t,a){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=a[0],t[7]=a[1],t[8]=1,t},o.fromRotation=function(t,a){var r=Math.sin(a),n=Math.cos(a);return t[0]=n,t[1]=r,t[2]=0,t[3]=-r,t[4]=n,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromScaling=function(t,a){return t[0]=a[0],t[1]=0,t[2]=0,t[3]=0,t[4]=a[1],t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromMat2d=function(t,a){return t[0]=a[0],t[1]=a[1],t[2]=0,t[3]=a[2],t[4]=a[3],t[5]=0,t[6]=a[4],t[7]=a[5],t[8]=1,t},o.fromQuat=function(t,a){var r=a[0],n=a[1],o=a[2],e=a[3],i=r+r,l=n+n,u=o+o,s=r*i,M=n*i,h=n*l,c=o*i,f=o*l,m=o*u,S=e*i,x=e*l,d=e*u;return t[0]=1-h-m,t[3]=M-d,t[6]=c+x,t[1]=M+d,t[4]=1-s-m,t[7]=f-S,t[2]=c-x,t[5]=f+S,t[8]=1-s-h,t},o.normalFromMat4=function(t,a){var r=a[0],n=a[1],o=a[2],e=a[3],i=a[4],l=a[5],u=a[6],s=a[7],M=a[8],h=a[9],c=a[10],f=a[11],m=a[12],S=a[13],x=a[14],d=a[15],I=r*l-n*i,D=r*u-o*i,F=r*s-e*i,v=n*u-o*l,b=n*s-e*l,p=o*s-e*u,g=M*S-h*m,w=M*x-c*m,A=M*d-f*m,E=h*x-c*S,R=h*d-f*S,T=c*d-f*x,L=I*T-D*R+F*E+v*A-b*w+p*g;return L?(L=1/L,t[0]=(l*T-u*R+s*E)*L,t[1]=(u*A-i*T-s*w)*L,t[2]=(i*R-l*A+s*g)*L,t[3]=(o*R-n*T-e*E)*L,t[4]=(r*T-o*A+e*w)*L,t[5]=(n*A-r*R-e*g)*L,t[6]=(S*p-x*b+d*v)*L,t[7]=(x*F-m*p-d*D)*L,t[8]=(m*b-S*F+d*I)*L,t):null},o.str=function(t){return"mat3("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+")"},o.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2))},o.add=function(t,a,r){return t[0]=a[0]+r[0],t[1]=a[1]+r[1],t[2]=a[2]+r[2],t[3]=a[3]+r[3],t[4]=a[4]+r[4],t[5]=a[5]+r[5],t[6]=a[6]+r[6],t[7]=a[7]+r[7],t[8]=a[8]+r[8],t},o.subtract=function(t,a,r){return t[0]=a[0]-r[0],t[1]=a[1]-r[1],t[2]=a[2]-r[2],t[3]=a[3]-r[3],t[4]=a[4]-r[4],t[5]=a[5]-r[5],t[6]=a[6]-r[6],t[7]=a[7]-r[7],t[8]=a[8]-r[8],t},o.sub=o.subtract,o.multiplyScalar=function(t,a,r){return t[0]=a[0]*r,t[1]=a[1]*r,t[2]=a[2]*r,t[3]=a[3]*r,t[4]=a[4]*r,t[5]=a[5]*r,t[6]=a[6]*r,t[7]=a[7]*r,t[8]=a[8]*r,t},o.multiplyScalarAndAdd=function(t,a,r,n){return t[0]=a[0]+r[0]*n,t[1]=a[1]+r[1]*n,t[2]=a[2]+r[2]*n,t[3]=a[3]+r[3]*n,t[4]=a[4]+r[4]*n,t[5]=a[5]+r[5]*n,t[6]=a[6]+r[6]*n,t[7]=a[7]+r[7]*n,t[8]=a[8]+r[8]*n,t},o.exactEquals=function(t,a){return t[0]===a[0]&&t[1]===a[1]&&t[2]===a[2]&&t[3]===a[3]&&t[4]===a[4]&&t[5]===a[5]&&t[6]===a[6]&&t[7]===a[7]&&t[8]===a[8]},o.equals=function(t,a){var r=t[0],o=t[1],e=t[2],i=t[3],l=t[4],u=t[5],s=t[6],M=t[7],h=t[8],c=a[0],f=a[1],m=a[2],S=a[3],x=a[4],d=a[5],I=t[6],D=a[7],F=a[8];return Math.abs(r-c)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(c))&&Math.abs(o-f)<=n.EPSILON*Math.max(1,Math.abs(o),Math.abs(f))&&Math.abs(e-m)<=n.EPSILON*Math.max(1,Math.abs(e),Math.abs(m))&&Math.abs(i-S)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(S))&&Math.abs(l-x)<=n.EPSILON*Math.max(1,Math.abs(l),Math.abs(x))&&Math.abs(u-d)<=n.EPSILON*Math.max(1,Math.abs(u),Math.abs(d))&&Math.abs(s-I)<=n.EPSILON*Math.max(1,Math.abs(s),Math.abs(I))&&Math.abs(M-D)<=n.EPSILON*Math.max(1,Math.abs(M),Math.abs(D))&&Math.abs(h-F)<=n.EPSILON*Math.max(1,Math.abs(h),Math.abs(F))},t.exports=o},function(t,a,r){var n=r(2),o={scalar:{},SIMD:{}};o.create=function(){var t=new n.ARRAY_TYPE(16);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.clone=function(t){var a=new n.ARRAY_TYPE(16);return a[0]=t[0],a[1]=t[1],a[2]=t[2],a[3]=t[3],a[4]=t[4],a[5]=t[5],a[6]=t[6],a[7]=t[7],a[8]=t[8],a[9]=t[9],a[10]=t[10],a[11]=t[11],a[12]=t[12],a[13]=t[13],a[14]=t[14],a[15]=t[15],a},o.copy=function(t,a){return t[0]=a[0],t[1]=a[1],t[2]=a[2],t[3]=a[3],t[4]=a[4],t[5]=a[5],t[6]=a[6],t[7]=a[7],t[8]=a[8],t[9]=a[9],t[10]=a[10],t[11]=a[11],t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15],t},o.fromValues=function(t,a,r,o,e,i,l,u,s,M,h,c,f,m,S,x){var d=new n.ARRAY_TYPE(16);return d[0]=t,d[1]=a,d[2]=r,d[3]=o,d[4]=e,d[5]=i,d[6]=l,d[7]=u,d[8]=s,d[9]=M,d[10]=h,d[11]=c,d[12]=f,d[13]=m,d[14]=S,d[15]=x,d},o.set=function(t,a,r,n,o,e,i,l,u,s,M,h,c,f,m,S,x){return t[0]=a,t[1]=r,t[2]=n,t[3]=o,t[4]=e,t[5]=i,t[6]=l,t[7]=u,t[8]=s,t[9]=M,t[10]=h,t[11]=c,t[12]=f,t[13]=m,t[14]=S,t[15]=x,t},o.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.scalar.transpose=function(t,a){if(t===a){var r=a[1],n=a[2],o=a[3],e=a[6],i=a[7],l=a[11];t[1]=a[4],t[2]=a[8],t[3]=a[12],t[4]=r,t[6]=a[9],t[7]=a[13],t[8]=n,t[9]=e,t[11]=a[14],t[12]=o,t[13]=i,t[14]=l}else t[0]=a[0],t[1]=a[4],t[2]=a[8],t[3]=a[12],t[4]=a[1],t[5]=a[5],t[6]=a[9],t[7]=a[13],t[8]=a[2],t[9]=a[6],t[10]=a[10],t[11]=a[14],t[12]=a[3],t[13]=a[7],t[14]=a[11],t[15]=a[15];return t},o.SIMD.transpose=function(t,a){var r,n,o,e,i,l,u,s,M,h;return r=SIMD.Float32x4.load(a,0),n=SIMD.Float32x4.load(a,4),o=SIMD.Float32x4.load(a,8),e=SIMD.Float32x4.load(a,12),i=SIMD.Float32x4.shuffle(r,n,0,1,4,5),l=SIMD.Float32x4.shuffle(o,e,0,1,4,5),u=SIMD.Float32x4.shuffle(i,l,0,2,4,6),s=SIMD.Float32x4.shuffle(i,l,1,3,5,7),SIMD.Float32x4.store(t,0,u),SIMD.Float32x4.store(t,4,s),i=SIMD.Float32x4.shuffle(r,n,2,3,6,7),l=SIMD.Float32x4.shuffle(o,e,2,3,6,7),M=SIMD.Float32x4.shuffle(i,l,0,2,4,6),h=SIMD.Float32x4.shuffle(i,l,1,3,5,7),SIMD.Float32x4.store(t,8,M),SIMD.Float32x4.store(t,12,h),t},o.transpose=n.USE_SIMD?o.SIMD.transpose:o.scalar.transpose,o.scalar.invert=function(t,a){var r=a[0],n=a[1],o=a[2],e=a[3],i=a[4],l=a[5],u=a[6],s=a[7],M=a[8],h=a[9],c=a[10],f=a[11],m=a[12],S=a[13],x=a[14],d=a[15],I=r*l-n*i,D=r*u-o*i,F=r*s-e*i,v=n*u-o*l,b=n*s-e*l,p=o*s-e*u,g=M*S-h*m,w=M*x-c*m,A=M*d-f*m,E=h*x-c*S,R=h*d-f*S,T=c*d-f*x,L=I*T-D*R+F*E+v*A-b*w+p*g;return L?(L=1/L,t[0]=(l*T-u*R+s*E)*L,t[1]=(o*R-n*T-e*E)*L,t[2]=(S*p-x*b+d*v)*L,t[3]=(c*b-h*p-f*v)*L,t[4]=(u*A-i*T-s*w)*L,t[5]=(r*T-o*A+e*w)*L,t[6]=(x*F-m*p-d*D)*L,t[7]=(M*p-c*F+f*D)*L,t[8]=(i*R-l*A+s*g)*L,t[9]=(n*A-r*R-e*g)*L,t[10]=(m*b-S*F+d*I)*L,t[11]=(h*F-M*b-f*I)*L,t[12]=(l*w-i*E-u*g)*L,t[13]=(r*E-n*w+o*g)*L,t[14]=(S*D-m*v-x*I)*L,t[15]=(M*v-h*D+c*I)*L,t):null},o.SIMD.invert=function(t,a){var r,n,o,e,i,l,u,s,M,h,c=SIMD.Float32x4.load(a,0),f=SIMD.Float32x4.load(a,4),m=SIMD.Float32x4.load(a,8),S=SIMD.Float32x4.load(a,12);return i=SIMD.Float32x4.shuffle(c,f,0,1,4,5),n=SIMD.Float32x4.shuffle(m,S,0,1,4,5),r=SIMD.Float32x4.shuffle(i,n,0,2,4,6),n=SIMD.Float32x4.shuffle(n,i,1,3,5,7),i=SIMD.Float32x4.shuffle(c,f,2,3,6,7),e=SIMD.Float32x4.shuffle(m,S,2,3,6,7),o=SIMD.Float32x4.shuffle(i,e,0,2,4,6),e=SIMD.Float32x4.shuffle(e,i,1,3,5,7),i=SIMD.Float32x4.mul(o,e),i=SIMD.Float32x4.swizzle(i,1,0,3,2),l=SIMD.Float32x4.mul(n,i),u=SIMD.Float32x4.mul(r,i),i=SIMD.Float32x4.swizzle(i,2,3,0,1),l=SIMD.Float32x4.sub(SIMD.Float32x4.mul(n,i),l),u=SIMD.Float32x4.sub(SIMD.Float32x4.mul(r,i),u),u=SIMD.Float32x4.swizzle(u,2,3,0,1),i=SIMD.Float32x4.mul(n,o),i=SIMD.Float32x4.swizzle(i,1,0,3,2),l=SIMD.Float32x4.add(SIMD.Float32x4.mul(e,i),l),M=SIMD.Float32x4.mul(r,i),i=SIMD.Float32x4.swizzle(i,2,3,0,1),l=SIMD.Float32x4.sub(l,SIMD.Float32x4.mul(e,i)),M=SIMD.Float32x4.sub(SIMD.Float32x4.mul(r,i),M),M=SIMD.Float32x4.swizzle(M,2,3,0,1),i=SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(n,2,3,0,1),e),i=SIMD.Float32x4.swizzle(i,1,0,3,2),o=SIMD.Float32x4.swizzle(o,2,3,0,1),l=SIMD.Float32x4.add(SIMD.Float32x4.mul(o,i),l),s=SIMD.Float32x4.mul(r,i),i=SIMD.Float32x4.swizzle(i,2,3,0,1),l=SIMD.Float32x4.sub(l,SIMD.Float32x4.mul(o,i)),s=SIMD.Float32x4.sub(SIMD.Float32x4.mul(r,i),s),s=SIMD.Float32x4.swizzle(s,2,3,0,1),i=SIMD.Float32x4.mul(r,n),i=SIMD.Float32x4.swizzle(i,1,0,3,2),s=SIMD.Float32x4.add(SIMD.Float32x4.mul(e,i),s),M=SIMD.Float32x4.sub(SIMD.Float32x4.mul(o,i),M),i=SIMD.Float32x4.swizzle(i,2,3,0,1),s=SIMD.Float32x4.sub(SIMD.Float32x4.mul(e,i),s),M=SIMD.Float32x4.sub(M,SIMD.Float32x4.mul(o,i)),i=SIMD.Float32x4.mul(r,e),i=SIMD.Float32x4.swizzle(i,1,0,3,2),u=SIMD.Float32x4.sub(u,SIMD.Float32x4.mul(o,i)),s=SIMD.Float32x4.add(SIMD.Float32x4.mul(n,i),s),i=SIMD.Float32x4.swizzle(i,2,3,0,1),u=SIMD.Float32x4.add(SIMD.Float32x4.mul(o,i),u),s=SIMD.Float32x4.sub(s,SIMD.Float32x4.mul(n,i)),i=SIMD.Float32x4.mul(r,o),i=SIMD.Float32x4.swizzle(i,1,0,3,2),u=SIMD.Float32x4.add(SIMD.Float32x4.mul(e,i),u),M=SIMD.Float32x4.sub(M,SIMD.Float32x4.mul(n,i)),i=SIMD.Float32x4.swizzle(i,2,3,0,1),u=SIMD.Float32x4.sub(u,SIMD.Float32x4.mul(e,i)),M=SIMD.Float32x4.add(SIMD.Float32x4.mul(n,i),M),h=SIMD.Float32x4.mul(r,l),h=SIMD.Float32x4.add(SIMD.Float32x4.swizzle(h,2,3,0,1),h),h=SIMD.Float32x4.add(SIMD.Float32x4.swizzle(h,1,0,3,2),h),i=SIMD.Float32x4.reciprocalApproximation(h),h=SIMD.Float32x4.sub(SIMD.Float32x4.add(i,i),SIMD.Float32x4.mul(h,SIMD.Float32x4.mul(i,i))),(h=SIMD.Float32x4.swizzle(h,0,0,0,0))?(SIMD.Float32x4.store(t,0,SIMD.Float32x4.mul(h,l)),SIMD.Float32x4.store(t,4,SIMD.Float32x4.mul(h,u)),SIMD.Float32x4.store(t,8,SIMD.Float32x4.mul(h,s)),SIMD.Float32x4.store(t,12,SIMD.Float32x4.mul(h,M)),t):null},o.invert=n.USE_SIMD?o.SIMD.invert:o.scalar.invert,o.scalar.adjoint=function(t,a){var r=a[0],n=a[1],o=a[2],e=a[3],i=a[4],l=a[5],u=a[6],s=a[7],M=a[8],h=a[9],c=a[10],f=a[11],m=a[12],S=a[13],x=a[14],d=a[15];return t[0]=l*(c*d-f*x)-h*(u*d-s*x)+S*(u*f-s*c),t[1]=-(n*(c*d-f*x)-h*(o*d-e*x)+S*(o*f-e*c)),t[2]=n*(u*d-s*x)-l*(o*d-e*x)+S*(o*s-e*u),t[3]=-(n*(u*f-s*c)-l*(o*f-e*c)+h*(o*s-e*u)),t[4]=-(i*(c*d-f*x)-M*(u*d-s*x)+m*(u*f-s*c)),t[5]=r*(c*d-f*x)-M*(o*d-e*x)+m*(o*f-e*c),t[6]=-(r*(u*d-s*x)-i*(o*d-e*x)+m*(o*s-e*u)),t[7]=r*(u*f-s*c)-i*(o*f-e*c)+M*(o*s-e*u),t[8]=i*(h*d-f*S)-M*(l*d-s*S)+m*(l*f-s*h),t[9]=-(r*(h*d-f*S)-M*(n*d-e*S)+m*(n*f-e*h)),t[10]=r*(l*d-s*S)-i*(n*d-e*S)+m*(n*s-e*l),t[11]=-(r*(l*f-s*h)-i*(n*f-e*h)+M*(n*s-e*l)),t[12]=-(i*(h*x-c*S)-M*(l*x-u*S)+m*(l*c-u*h)),t[13]=r*(h*x-c*S)-M*(n*x-o*S)+m*(n*c-o*h),t[14]=-(r*(l*x-u*S)-i*(n*x-o*S)+m*(n*u-o*l)),t[15]=r*(l*c-u*h)-i*(n*c-o*h)+M*(n*u-o*l),t},o.SIMD.adjoint=function(t,a){var r,n,o,e,i,l,u,s,M,h,c,f,m,r=SIMD.Float32x4.load(a,0),n=SIMD.Float32x4.load(a,4),o=SIMD.Float32x4.load(a,8),e=SIMD.Float32x4.load(a,12);return M=SIMD.Float32x4.shuffle(r,n,0,1,4,5),l=SIMD.Float32x4.shuffle(o,e,0,1,4,5),i=SIMD.Float32x4.shuffle(M,l,0,2,4,6),l=SIMD.Float32x4.shuffle(l,M,1,3,5,7),M=SIMD.Float32x4.shuffle(r,n,2,3,6,7),s=SIMD.Float32x4.shuffle(o,e,2,3,6,7),u=SIMD.Float32x4.shuffle(M,s,0,2,4,6),s=SIMD.Float32x4.shuffle(s,M,1,3,5,7),M=SIMD.Float32x4.mul(u,s),M=SIMD.Float32x4.swizzle(M,1,0,3,2),h=SIMD.Float32x4.mul(l,M),c=SIMD.Float32x4.mul(i,M),M=SIMD.Float32x4.swizzle(M,2,3,0,1),h=SIMD.Float32x4.sub(SIMD.Float32x4.mul(l,M),h),c=SIMD.Float32x4.sub(SIMD.Float32x4.mul(i,M),c),c=SIMD.Float32x4.swizzle(c,2,3,0,1),M=SIMD.Float32x4.mul(l,u),M=SIMD.Float32x4.swizzle(M,1,0,3,2),h=SIMD.Float32x4.add(SIMD.Float32x4.mul(s,M),h),m=SIMD.Float32x4.mul(i,M),M=SIMD.Float32x4.swizzle(M,2,3,0,1),h=SIMD.Float32x4.sub(h,SIMD.Float32x4.mul(s,M)),m=SIMD.Float32x4.sub(SIMD.Float32x4.mul(i,M),m),m=SIMD.Float32x4.swizzle(m,2,3,0,1),M=SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(l,2,3,0,1),s),M=SIMD.Float32x4.swizzle(M,1,0,3,2),u=SIMD.Float32x4.swizzle(u,2,3,0,1),h=SIMD.Float32x4.add(SIMD.Float32x4.mul(u,M),h),f=SIMD.Float32x4.mul(i,M),M=SIMD.Float32x4.swizzle(M,2,3,0,1),h=SIMD.Float32x4.sub(h,SIMD.Float32x4.mul(u,M)),f=SIMD.Float32x4.sub(SIMD.Float32x4.mul(i,M),f),f=SIMD.Float32x4.swizzle(f,2,3,0,1),M=SIMD.Float32x4.mul(i,l),M=SIMD.Float32x4.swizzle(M,1,0,3,2),f=SIMD.Float32x4.add(SIMD.Float32x4.mul(s,M),f),m=SIMD.Float32x4.sub(SIMD.Float32x4.mul(u,M),m),M=SIMD.Float32x4.swizzle(M,2,3,0,1),f=SIMD.Float32x4.sub(SIMD.Float32x4.mul(s,M),f),m=SIMD.Float32x4.sub(m,SIMD.Float32x4.mul(u,M)),M=SIMD.Float32x4.mul(i,s),M=SIMD.Float32x4.swizzle(M,1,0,3,2),c=SIMD.Float32x4.sub(c,SIMD.Float32x4.mul(u,M)),f=SIMD.Float32x4.add(SIMD.Float32x4.mul(l,M),f),M=SIMD.Float32x4.swizzle(M,2,3,0,1),c=SIMD.Float32x4.add(SIMD.Float32x4.mul(u,M),c),f=SIMD.Float32x4.sub(f,SIMD.Float32x4.mul(l,M)),M=SIMD.Float32x4.mul(i,u),M=SIMD.Float32x4.swizzle(M,1,0,3,2),c=SIMD.Float32x4.add(SIMD.Float32x4.mul(s,M),c),m=SIMD.Float32x4.sub(m,SIMD.Float32x4.mul(l,M)),M=SIMD.Float32x4.swizzle(M,2,3,0,1),c=SIMD.Float32x4.sub(c,SIMD.Float32x4.mul(s,M)),m=SIMD.Float32x4.add(SIMD.Float32x4.mul(l,M),m),SIMD.Float32x4.store(t,0,h),SIMD.Float32x4.store(t,4,c),SIMD.Float32x4.store(t,8,f),SIMD.Float32x4.store(t,12,m),t},o.adjoint=n.USE_SIMD?o.SIMD.adjoint:o.scalar.adjoint,o.determinant=function(t){var a=t[0],r=t[1],n=t[2],o=t[3],e=t[4],i=t[5],l=t[6],u=t[7],s=t[8],M=t[9],h=t[10],c=t[11],f=t[12],m=t[13],S=t[14],x=t[15],d=a*i-r*e,I=a*l-n*e,D=a*u-o*e,F=r*l-n*i,v=r*u-o*i,b=n*u-o*l,p=s*m-M*f,g=s*S-h*f,w=s*x-c*f,A=M*S-h*m,E=M*x-c*m,R=h*x-c*S;return d*R-I*E+D*A+F*w-v*g+b*p},o.SIMD.multiply=function(t,a,r){var n=SIMD.Float32x4.load(a,0),o=SIMD.Float32x4.load(a,4),e=SIMD.Float32x4.load(a,8),i=SIMD.Float32x4.load(a,12),l=SIMD.Float32x4.load(r,0),u=SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(l,0,0,0,0),n),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(l,1,1,1,1),o),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(l,2,2,2,2),e),SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(l,3,3,3,3),i))));SIMD.Float32x4.store(t,0,u);var s=SIMD.Float32x4.load(r,4),M=SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(s,0,0,0,0),n),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(s,1,1,1,1),o),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(s,2,2,2,2),e),SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(s,3,3,3,3),i))));SIMD.Float32x4.store(t,4,M);var h=SIMD.Float32x4.load(r,8),c=SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(h,0,0,0,0),n),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(h,1,1,1,1),o),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(h,2,2,2,2),e),SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(h,3,3,3,3),i))));SIMD.Float32x4.store(t,8,c);var f=SIMD.Float32x4.load(r,12),m=SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(f,0,0,0,0),n),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(f,1,1,1,1),o),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(f,2,2,2,2),e),SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(f,3,3,3,3),i))));return SIMD.Float32x4.store(t,12,m),t},o.scalar.multiply=function(t,a,r){var n=a[0],o=a[1],e=a[2],i=a[3],l=a[4],u=a[5],s=a[6],M=a[7],h=a[8],c=a[9],f=a[10],m=a[11],S=a[12],x=a[13],d=a[14],I=a[15],D=r[0],F=r[1],v=r[2],b=r[3];return t[0]=D*n+F*l+v*h+b*S,t[1]=D*o+F*u+v*c+b*x,t[2]=D*e+F*s+v*f+b*d,t[3]=D*i+F*M+v*m+b*I,D=r[4],F=r[5],v=r[6],b=r[7],t[4]=D*n+F*l+v*h+b*S,t[5]=D*o+F*u+v*c+b*x,t[6]=D*e+F*s+v*f+b*d,t[7]=D*i+F*M+v*m+b*I,D=r[8],F=r[9],v=r[10],b=r[11],t[8]=D*n+F*l+v*h+b*S,t[9]=D*o+F*u+v*c+b*x,t[10]=D*e+F*s+v*f+b*d,t[11]=D*i+F*M+v*m+b*I,D=r[12],F=r[13],v=r[14],b=r[15],t[12]=D*n+F*l+v*h+b*S,t[13]=D*o+F*u+v*c+b*x,t[14]=D*e+F*s+v*f+b*d,t[15]=D*i+F*M+v*m+b*I,t},o.multiply=n.USE_SIMD?o.SIMD.multiply:o.scalar.multiply,o.mul=o.multiply,o.scalar.translate=function(t,a,r){var n,o,e,i,l,u,s,M,h,c,f,m,S=r[0],x=r[1],d=r[2];return a===t?(t[12]=a[0]*S+a[4]*x+a[8]*d+a[12],t[13]=a[1]*S+a[5]*x+a[9]*d+a[13],t[14]=a[2]*S+a[6]*x+a[10]*d+a[14],t[15]=a[3]*S+a[7]*x+a[11]*d+a[15]):(n=a[0],o=a[1],e=a[2],i=a[3],l=a[4],u=a[5],s=a[6],M=a[7],h=a[8],c=a[9],f=a[10],m=a[11],t[0]=n,t[1]=o,t[2]=e,t[3]=i,t[4]=l,t[5]=u,t[6]=s,t[7]=M,t[8]=h,t[9]=c,t[10]=f,t[11]=m,t[12]=n*S+l*x+h*d+a[12],t[13]=o*S+u*x+c*d+a[13],t[14]=e*S+s*x+f*d+a[14],t[15]=i*S+M*x+m*d+a[15]),t},o.SIMD.translate=function(t,a,r){var n=SIMD.Float32x4.load(a,0),o=SIMD.Float32x4.load(a,4),e=SIMD.Float32x4.load(a,8),i=SIMD.Float32x4.load(a,12),l=SIMD.Float32x4(r[0],r[1],r[2],0);a!==t&&(t[0]=a[0],t[1]=a[1],t[2]=a[2],t[3]=a[3],t[4]=a[4],t[5]=a[5],t[6]=a[6],t[7]=a[7],t[8]=a[8],t[9]=a[9],t[10]=a[10],t[11]=a[11]),n=SIMD.Float32x4.mul(n,SIMD.Float32x4.swizzle(l,0,0,0,0)),o=SIMD.Float32x4.mul(o,SIMD.Float32x4.swizzle(l,1,1,1,1)),e=SIMD.Float32x4.mul(e,SIMD.Float32x4.swizzle(l,2,2,2,2));var u=SIMD.Float32x4.add(n,SIMD.Float32x4.add(o,SIMD.Float32x4.add(e,i)));return SIMD.Float32x4.store(t,12,u),t},o.translate=n.USE_SIMD?o.SIMD.translate:o.scalar.translate,o.scalar.scale=function(t,a,r){var n=r[0],o=r[1],e=r[2];return t[0]=a[0]*n,t[1]=a[1]*n,t[2]=a[2]*n,t[3]=a[3]*n,t[4]=a[4]*o,t[5]=a[5]*o,t[6]=a[6]*o,t[7]=a[7]*o,t[8]=a[8]*e,t[9]=a[9]*e,t[10]=a[10]*e,t[11]=a[11]*e,t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15],t},o.SIMD.scale=function(t,a,r){var n,o,e,i=SIMD.Float32x4(r[0],r[1],r[2],0);return n=SIMD.Float32x4.load(a,0),SIMD.Float32x4.store(t,0,SIMD.Float32x4.mul(n,SIMD.Float32x4.swizzle(i,0,0,0,0))),o=SIMD.Float32x4.load(a,4),SIMD.Float32x4.store(t,4,SIMD.Float32x4.mul(o,SIMD.Float32x4.swizzle(i,1,1,1,1))),e=SIMD.Float32x4.load(a,8),SIMD.Float32x4.store(t,8,SIMD.Float32x4.mul(e,SIMD.Float32x4.swizzle(i,2,2,2,2))),t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15],t},o.scale=n.USE_SIMD?o.SIMD.scale:o.scalar.scale,o.rotate=function(t,a,r,o){var e,i,l,u,s,M,h,c,f,m,S,x,d,I,D,F,v,b,p,g,w,A,E,R,T=o[0],L=o[1],z=o[2],P=Math.sqrt(T*T+L*L+z*z);return Math.abs(P)<n.EPSILON?null:(P=1/P,T*=P,L*=P,z*=P,e=Math.sin(r),i=Math.cos(r),l=1-i,u=a[0],s=a[1],M=a[2],h=a[3],c=a[4],f=a[5],m=a[6],S=a[7],x=a[8],d=a[9],I=a[10],D=a[11],F=T*T*l+i,v=L*T*l+z*e,b=z*T*l-L*e,p=T*L*l-z*e,g=L*L*l+i,w=z*L*l+T*e,A=T*z*l+L*e,E=L*z*l-T*e,R=z*z*l+i,t[0]=u*F+c*v+x*b,t[1]=s*F+f*v+d*b,t[2]=M*F+m*v+I*b,t[3]=h*F+S*v+D*b,t[4]=u*p+c*g+x*w,t[5]=s*p+f*g+d*w,t[6]=M*p+m*g+I*w,t[7]=h*p+S*g+D*w,t[8]=u*A+c*E+x*R,t[9]=s*A+f*E+d*R,t[10]=M*A+m*E+I*R,t[11]=h*A+S*E+D*R,a!==t&&(t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15]),t)},o.scalar.rotateX=function(t,a,r){var n=Math.sin(r),o=Math.cos(r),e=a[4],i=a[5],l=a[6],u=a[7],s=a[8],M=a[9],h=a[10],c=a[11];return a!==t&&(t[0]=a[0],t[1]=a[1],t[2]=a[2],t[3]=a[3],t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15]),t[4]=e*o+s*n,t[5]=i*o+M*n,t[6]=l*o+h*n,t[7]=u*o+c*n,t[8]=s*o-e*n,t[9]=M*o-i*n,t[10]=h*o-l*n,t[11]=c*o-u*n,t},o.SIMD.rotateX=function(t,a,r){var n=SIMD.Float32x4.splat(Math.sin(r)),o=SIMD.Float32x4.splat(Math.cos(r));a!==t&&(t[0]=a[0],t[1]=a[1],t[2]=a[2],t[3]=a[3],t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15]);var e=SIMD.Float32x4.load(a,4),i=SIMD.Float32x4.load(a,8);return SIMD.Float32x4.store(t,4,SIMD.Float32x4.add(SIMD.Float32x4.mul(e,o),SIMD.Float32x4.mul(i,n))),SIMD.Float32x4.store(t,8,SIMD.Float32x4.sub(SIMD.Float32x4.mul(i,o),SIMD.Float32x4.mul(e,n))),t},o.rotateX=n.USE_SIMD?o.SIMD.rotateX:o.scalar.rotateX,o.scalar.rotateY=function(t,a,r){var n=Math.sin(r),o=Math.cos(r),e=a[0],i=a[1],l=a[2],u=a[3],s=a[8],M=a[9],h=a[10],c=a[11];return a!==t&&(t[4]=a[4],t[5]=a[5],t[6]=a[6],t[7]=a[7],t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15]),t[0]=e*o-s*n,t[1]=i*o-M*n,t[2]=l*o-h*n,t[3]=u*o-c*n,t[8]=e*n+s*o,t[9]=i*n+M*o,t[10]=l*n+h*o,t[11]=u*n+c*o,t},o.SIMD.rotateY=function(t,a,r){var n=SIMD.Float32x4.splat(Math.sin(r)),o=SIMD.Float32x4.splat(Math.cos(r));a!==t&&(t[4]=a[4],t[5]=a[5],t[6]=a[6],t[7]=a[7],t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15]);var e=SIMD.Float32x4.load(a,0),i=SIMD.Float32x4.load(a,8);return SIMD.Float32x4.store(t,0,SIMD.Float32x4.sub(SIMD.Float32x4.mul(e,o),SIMD.Float32x4.mul(i,n))),SIMD.Float32x4.store(t,8,SIMD.Float32x4.add(SIMD.Float32x4.mul(e,n),SIMD.Float32x4.mul(i,o))),t},o.rotateY=n.USE_SIMD?o.SIMD.rotateY:o.scalar.rotateY,o.scalar.rotateZ=function(t,a,r){var n=Math.sin(r),o=Math.cos(r),e=a[0],i=a[1],l=a[2],u=a[3],s=a[4],M=a[5],h=a[6],c=a[7];return a!==t&&(t[8]=a[8],t[9]=a[9],t[10]=a[10],t[11]=a[11],t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15]),t[0]=e*o+s*n,t[1]=i*o+M*n,t[2]=l*o+h*n,t[3]=u*o+c*n,t[4]=s*o-e*n,t[5]=M*o-i*n,t[6]=h*o-l*n,t[7]=c*o-u*n,t},o.SIMD.rotateZ=function(t,a,r){var n=SIMD.Float32x4.splat(Math.sin(r)),o=SIMD.Float32x4.splat(Math.cos(r));a!==t&&(t[8]=a[8],t[9]=a[9],t[10]=a[10],t[11]=a[11],t[12]=a[12],t[13]=a[13],t[14]=a[14],t[15]=a[15]);var e=SIMD.Float32x4.load(a,0),i=SIMD.Float32x4.load(a,4);return SIMD.Float32x4.store(t,0,SIMD.Float32x4.add(SIMD.Float32x4.mul(e,o),SIMD.Float32x4.mul(i,n))),SIMD.Float32x4.store(t,4,SIMD.Float32x4.sub(SIMD.Float32x4.mul(i,o),SIMD.Float32x4.mul(e,n))),t},o.rotateZ=n.USE_SIMD?o.SIMD.rotateZ:o.scalar.rotateZ,o.fromTranslation=function(t,a){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=a[0],t[13]=a[1],t[14]=a[2],t[15]=1,t},o.fromScaling=function(t,a){return t[0]=a[0],t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=a[1],t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=a[2],t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.fromRotation=function(t,a,r){var o,e,i,l=r[0],u=r[1],s=r[2],M=Math.sqrt(l*l+u*u+s*s);return Math.abs(M)<n.EPSILON?null:(M=1/M,l*=M,u*=M,s*=M,o=Math.sin(a),e=Math.cos(a),i=1-e,t[0]=l*l*i+e,t[1]=u*l*i+s*o,t[2]=s*l*i-u*o,t[3]=0,t[4]=l*u*i-s*o,t[5]=u*u*i+e,t[6]=s*u*i+l*o,t[7]=0,t[8]=l*s*i+u*o,t[9]=u*s*i-l*o,t[10]=s*s*i+e,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t)},o.fromXRotation=function(t,a){var r=Math.sin(a),n=Math.cos(a);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=n,t[6]=r,t[7]=0,t[8]=0,t[9]=-r,t[10]=n,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.fromYRotation=function(t,a){var r=Math.sin(a),n=Math.cos(a);return t[0]=n,t[1]=0,t[2]=-r,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=r,t[9]=0,t[10]=n,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.fromZRotation=function(t,a){var r=Math.sin(a),n=Math.cos(a);return t[0]=n,t[1]=r,t[2]=0,t[3]=0,t[4]=-r,t[5]=n,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.fromRotationTranslation=function(t,a,r){var n=a[0],o=a[1],e=a[2],i=a[3],l=n+n,u=o+o,s=e+e,M=n*l,h=n*u,c=n*s,f=o*u,m=o*s,S=e*s,x=i*l,d=i*u,I=i*s;return t[0]=1-(f+S),t[1]=h+I,t[2]=c-d,t[3]=0,t[4]=h-I,t[5]=1-(M+S),t[6]=m+x,t[7]=0,t[8]=c+d,
t[9]=m-x,t[10]=1-(M+f),t[11]=0,t[12]=r[0],t[13]=r[1],t[14]=r[2],t[15]=1,t},o.getTranslation=function(t,a){return t[0]=a[12],t[1]=a[13],t[2]=a[14],t},o.getRotation=function(t,a){var r=a[0]+a[5]+a[10],n=0;return r>0?(n=2*Math.sqrt(r+1),t[3]=.25*n,t[0]=(a[6]-a[9])/n,t[1]=(a[8]-a[2])/n,t[2]=(a[1]-a[4])/n):a[0]>a[5]&a[0]>a[10]?(n=2*Math.sqrt(1+a[0]-a[5]-a[10]),t[3]=(a[6]-a[9])/n,t[0]=.25*n,t[1]=(a[1]+a[4])/n,t[2]=(a[8]+a[2])/n):a[5]>a[10]?(n=2*Math.sqrt(1+a[5]-a[0]-a[10]),t[3]=(a[8]-a[2])/n,t[0]=(a[1]+a[4])/n,t[1]=.25*n,t[2]=(a[6]+a[9])/n):(n=2*Math.sqrt(1+a[10]-a[0]-a[5]),t[3]=(a[1]-a[4])/n,t[0]=(a[8]+a[2])/n,t[1]=(a[6]+a[9])/n,t[2]=.25*n),t},o.fromRotationTranslationScale=function(t,a,r,n){var o=a[0],e=a[1],i=a[2],l=a[3],u=o+o,s=e+e,M=i+i,h=o*u,c=o*s,f=o*M,m=e*s,S=e*M,x=i*M,d=l*u,I=l*s,D=l*M,F=n[0],v=n[1],b=n[2];return t[0]=(1-(m+x))*F,t[1]=(c+D)*F,t[2]=(f-I)*F,t[3]=0,t[4]=(c-D)*v,t[5]=(1-(h+x))*v,t[6]=(S+d)*v,t[7]=0,t[8]=(f+I)*b,t[9]=(S-d)*b,t[10]=(1-(h+m))*b,t[11]=0,t[12]=r[0],t[13]=r[1],t[14]=r[2],t[15]=1,t},o.fromRotationTranslationScaleOrigin=function(t,a,r,n,o){var e=a[0],i=a[1],l=a[2],u=a[3],s=e+e,M=i+i,h=l+l,c=e*s,f=e*M,m=e*h,S=i*M,x=i*h,d=l*h,I=u*s,D=u*M,F=u*h,v=n[0],b=n[1],p=n[2],g=o[0],w=o[1],A=o[2];return t[0]=(1-(S+d))*v,t[1]=(f+F)*v,t[2]=(m-D)*v,t[3]=0,t[4]=(f-F)*b,t[5]=(1-(c+d))*b,t[6]=(x+I)*b,t[7]=0,t[8]=(m+D)*p,t[9]=(x-I)*p,t[10]=(1-(c+S))*p,t[11]=0,t[12]=r[0]+g-(t[0]*g+t[4]*w+t[8]*A),t[13]=r[1]+w-(t[1]*g+t[5]*w+t[9]*A),t[14]=r[2]+A-(t[2]*g+t[6]*w+t[10]*A),t[15]=1,t},o.fromQuat=function(t,a){var r=a[0],n=a[1],o=a[2],e=a[3],i=r+r,l=n+n,u=o+o,s=r*i,M=n*i,h=n*l,c=o*i,f=o*l,m=o*u,S=e*i,x=e*l,d=e*u;return t[0]=1-h-m,t[1]=M+d,t[2]=c-x,t[3]=0,t[4]=M-d,t[5]=1-s-m,t[6]=f+S,t[7]=0,t[8]=c+x,t[9]=f-S,t[10]=1-s-h,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.frustum=function(t,a,r,n,o,e,i){var l=1/(r-a),u=1/(o-n),s=1/(e-i);return t[0]=2*e*l,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=2*e*u,t[6]=0,t[7]=0,t[8]=(r+a)*l,t[9]=(o+n)*u,t[10]=(i+e)*s,t[11]=-1,t[12]=0,t[13]=0,t[14]=i*e*2*s,t[15]=0,t},o.perspective=function(t,a,r,n,o){var e=1/Math.tan(a/2),i=1/(n-o);return t[0]=e/r,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=e,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=(o+n)*i,t[11]=-1,t[12]=0,t[13]=0,t[14]=2*o*n*i,t[15]=0,t},o.perspectiveFromFieldOfView=function(t,a,r,n){var o=Math.tan(a.upDegrees*Math.PI/180),e=Math.tan(a.downDegrees*Math.PI/180),i=Math.tan(a.leftDegrees*Math.PI/180),l=Math.tan(a.rightDegrees*Math.PI/180),u=2/(i+l),s=2/(o+e);return t[0]=u,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=s,t[6]=0,t[7]=0,t[8]=-((i-l)*u*.5),t[9]=(o-e)*s*.5,t[10]=n/(r-n),t[11]=-1,t[12]=0,t[13]=0,t[14]=n*r/(r-n),t[15]=0,t},o.ortho=function(t,a,r,n,o,e,i){var l=1/(a-r),u=1/(n-o),s=1/(e-i);return t[0]=-2*l,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=-2*u,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=2*s,t[11]=0,t[12]=(a+r)*l,t[13]=(o+n)*u,t[14]=(i+e)*s,t[15]=1,t},o.lookAt=function(t,a,r,e){var i,l,u,s,M,h,c,f,m,S,x=a[0],d=a[1],I=a[2],D=e[0],F=e[1],v=e[2],b=r[0],p=r[1],g=r[2];return Math.abs(x-b)<n.EPSILON&&Math.abs(d-p)<n.EPSILON&&Math.abs(I-g)<n.EPSILON?o.identity(t):(c=x-b,f=d-p,m=I-g,S=1/Math.sqrt(c*c+f*f+m*m),c*=S,f*=S,m*=S,i=F*m-v*f,l=v*c-D*m,u=D*f-F*c,S=Math.sqrt(i*i+l*l+u*u),S?(S=1/S,i*=S,l*=S,u*=S):(i=0,l=0,u=0),s=f*u-m*l,M=m*i-c*u,h=c*l-f*i,S=Math.sqrt(s*s+M*M+h*h),S?(S=1/S,s*=S,M*=S,h*=S):(s=0,M=0,h=0),t[0]=i,t[1]=s,t[2]=c,t[3]=0,t[4]=l,t[5]=M,t[6]=f,t[7]=0,t[8]=u,t[9]=h,t[10]=m,t[11]=0,t[12]=-(i*x+l*d+u*I),t[13]=-(s*x+M*d+h*I),t[14]=-(c*x+f*d+m*I),t[15]=1,t)},o.str=function(t){return"mat4("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+", "+t[9]+", "+t[10]+", "+t[11]+", "+t[12]+", "+t[13]+", "+t[14]+", "+t[15]+")"},o.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2)+Math.pow(t[9],2)+Math.pow(t[10],2)+Math.pow(t[11],2)+Math.pow(t[12],2)+Math.pow(t[13],2)+Math.pow(t[14],2)+Math.pow(t[15],2))},o.add=function(t,a,r){return t[0]=a[0]+r[0],t[1]=a[1]+r[1],t[2]=a[2]+r[2],t[3]=a[3]+r[3],t[4]=a[4]+r[4],t[5]=a[5]+r[5],t[6]=a[6]+r[6],t[7]=a[7]+r[7],t[8]=a[8]+r[8],t[9]=a[9]+r[9],t[10]=a[10]+r[10],t[11]=a[11]+r[11],t[12]=a[12]+r[12],t[13]=a[13]+r[13],t[14]=a[14]+r[14],t[15]=a[15]+r[15],t},o.subtract=function(t,a,r){return t[0]=a[0]-r[0],t[1]=a[1]-r[1],t[2]=a[2]-r[2],t[3]=a[3]-r[3],t[4]=a[4]-r[4],t[5]=a[5]-r[5],t[6]=a[6]-r[6],t[7]=a[7]-r[7],t[8]=a[8]-r[8],t[9]=a[9]-r[9],t[10]=a[10]-r[10],t[11]=a[11]-r[11],t[12]=a[12]-r[12],t[13]=a[13]-r[13],t[14]=a[14]-r[14],t[15]=a[15]-r[15],t},o.sub=o.subtract,o.multiplyScalar=function(t,a,r){return t[0]=a[0]*r,t[1]=a[1]*r,t[2]=a[2]*r,t[3]=a[3]*r,t[4]=a[4]*r,t[5]=a[5]*r,t[6]=a[6]*r,t[7]=a[7]*r,t[8]=a[8]*r,t[9]=a[9]*r,t[10]=a[10]*r,t[11]=a[11]*r,t[12]=a[12]*r,t[13]=a[13]*r,t[14]=a[14]*r,t[15]=a[15]*r,t},o.multiplyScalarAndAdd=function(t,a,r,n){return t[0]=a[0]+r[0]*n,t[1]=a[1]+r[1]*n,t[2]=a[2]+r[2]*n,t[3]=a[3]+r[3]*n,t[4]=a[4]+r[4]*n,t[5]=a[5]+r[5]*n,t[6]=a[6]+r[6]*n,t[7]=a[7]+r[7]*n,t[8]=a[8]+r[8]*n,t[9]=a[9]+r[9]*n,t[10]=a[10]+r[10]*n,t[11]=a[11]+r[11]*n,t[12]=a[12]+r[12]*n,t[13]=a[13]+r[13]*n,t[14]=a[14]+r[14]*n,t[15]=a[15]+r[15]*n,t},o.exactEquals=function(t,a){return t[0]===a[0]&&t[1]===a[1]&&t[2]===a[2]&&t[3]===a[3]&&t[4]===a[4]&&t[5]===a[5]&&t[6]===a[6]&&t[7]===a[7]&&t[8]===a[8]&&t[9]===a[9]&&t[10]===a[10]&&t[11]===a[11]&&t[12]===a[12]&&t[13]===a[13]&&t[14]===a[14]&&t[15]===a[15]},o.equals=function(t,a){var r=t[0],o=t[1],e=t[2],i=t[3],l=t[4],u=t[5],s=t[6],M=t[7],h=t[8],c=t[9],f=t[10],m=t[11],S=t[12],x=t[13],d=t[14],I=t[15],D=a[0],F=a[1],v=a[2],b=a[3],p=a[4],g=a[5],w=a[6],A=a[7],E=a[8],R=a[9],T=a[10],L=a[11],z=a[12],P=a[13],_=a[14],y=a[15];return 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i=n.mat4.create();n.mat4.invert(i,o);var l=this.gl.getUniformLocation(this.gl.program,"u_ModelViewProjectionMatrixInverse");this.gl.uniformMatrix4fv(l,!1,i)},t.prototype.setUniformsLights=function(t){if(t){if(t.position){var a=this.gl.getUniformLocation(this.gl.program,"u_Light.position");this.gl.uniform4fv(a,t.position)}if(t.ambient){var r=this.gl.getUniformLocation(this.gl.program,"u_Light.ambient");this.gl.uniform3fv(r,t.ambient)}if(t.diffuse){var n=this.gl.getUniformLocation(this.gl.program,"u_Light.diffuse");this.gl.uniform3fv(n,t.diffuse)}if(t.specular){var o=this.gl.getUniformLocation(this.gl.program,"u_Light.specular");this.gl.uniform3fv(o,t.specular)}}},t.prototype.setUniformsMaterials=function(t){if(t.material){if(t.material.ambient){var a=this.gl.getUniformLocation(this.gl.program,"u_Material.ambient");this.gl.uniform3fv(a,t.material.ambient)}if(t.material.diffuse){var r=this.gl.getUniformLocation(this.gl.program,"u_Material.diffuse");this.gl.uniform3fv(r,t.material.diffuse)}if(t.material.specular){var n=this.gl.getUniformLocation(this.gl.program,"u_Material.specular");this.gl.uniform3fv(n,t.material.specular)}if(t.material.shine){var o=this.gl.getUniformLocation(this.gl.program,"u_Material.shine");this.gl.uniform1f(o,t.material.shine)}}},t}();a.Shader=o},function(t,a,r){"use strict";var n=this&&this.__extends||function(t,a){function r(){this.constructor=t}for(var n in a)a.hasOwnProperty(n)&&(t[n]=a[n]);t.prototype=null===a?Object.create(a):(r.prototype=a.prototype,new r)},o=r(1),e=r(15),i=function(t){function a(a,r,n,o,e){t.call(this,r),this.radius=n,this.latitudeBands=o,this.longitudeBands=e,this.buildArrays(),this.buildBuffers(a),this.buildTransforms()}return n(a,t),a.prototype.buildArrays=function(){for(var t=[],a=[],r=[],n=[],o=0;o<=this.latitudeBands;++o)for(var 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Uint16Array(n)},a.prototype.buildBuffers=function(t){this.positionsBuffer=t.createBuffer(),this.normalsBuffer=t.createBuffer(),this.textureCoordsBuffer=t.createBuffer(),this.indicesBuffer=t.createBuffer(),t.bindBuffer(t.ARRAY_BUFFER,this.positionsBuffer),t.bufferData(t.ARRAY_BUFFER,this.positions,t.STATIC_DRAW),t.bindBuffer(t.ARRAY_BUFFER,this.normalsBuffer),t.bufferData(t.ARRAY_BUFFER,this.normals,t.STATIC_DRAW),t.bindBuffer(t.ARRAY_BUFFER,this.textureCoordsBuffer),t.bufferData(t.ARRAY_BUFFER,this.textureCoords,t.STATIC_DRAW),t.bindBuffer(t.ELEMENT_ARRAY_BUFFER,this.indicesBuffer),t.bufferData(t.ELEMENT_ARRAY_BUFFER,this.indices,t.STATIC_DRAW)},a.prototype.buildTransforms=function(){this.modelToWorld=o.mat4.create(),this.worldToModel=o.mat4.create(),o.mat4.invert(this.worldToModel,this.modelToWorld)},a}(e.Mesh);a.Sphere=i},function(t,a){"use strict";var r=function(){function t(){}return t.requestAnimationFrame=function(){window.requestAnimationFrame||(window.requestAnimationFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(t,a){window.setTimeout(t,1e3/60)}}())},t.cancelAnimationFrame=function(){window.cancelAnimationFrame||(window.cancelAnimationFrame=window.cancelRequestAnimationFrame||window.webkitCancelAnimationFrame||window.webkitCancelRequestAnimationFrame||window.mozCancelAnimationFrame||window.mozCancelRequestAnimationFrame||window.msCancelAnimationFrame||window.msCancelRequestAnimationFrame||window.oCancelAnimationFrame||window.oCancelRequestAnimationFrame||window.clearTimeout)},t.makeFailHTML=function(t){return"<div style='margin: auto; width:500px;z-index:10000;margin-top:20em;text-align:center;'>"+t+"</div>";
},t.handleCreationError=function(t){var a=document.getElementsByTagName("body")[0];if(a){var r=window.WebGLRenderingContext?this.OTHER_PROBLEM:this.GET_A_WEBGL_BROWSER;t&&(r+="<br/><br/>Status: "+t),a.innerHTML=this.makeFailHTML(r)}},t.setupWebGL=function(t,a,r){r=r||this.handleCreationError,t.addEventListener&&t.addEventListener("webglcontextcreationerror",function(t){r(t.statusMessage)},!1);var n=this.create3DContext(t,a);return n||r(window.WebGLRenderingContext?"":""),n},t.create3DContext=function(t,a){for(var r=["webgl","experimental-webgl","webkit-3d","moz-webgl"],n=null,o=0;o<r.length;++o){try{n=t.getContext(r[o],a)}catch(e){}if(n)break}return n},t.animate=function(t,a){function r(){var e=(new Date).getTime();t&&t((e-o)/1e3),a&&a(),n(r),o=e}var n=window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||function(t){setTimeout(t,1e3/60)},o=(new Date).getTime();r()},t.GET_A_WEBGL_BROWSER='This page requires a browser that supports WebGL.<br/><a href="http://get.webgl.org">Click here to upgrade your browser.</a>',t.OTHER_PROBLEM='It doesn\'t appear your computer can support WebGL.<br/><a href="http://get.webgl.org">Click here for more information.</a>',t}();a.WebGLUtils=r}]);

earth.jpg

index.html

<!doctype html>

<meta charset="utf-8">

<canvas id="webgl" width="512" height="512">
  Please use a browser that supports canvas.
</canvas>

<script src="bundle.js"></script>

index.ts

import * as glMatrix from 'gl-matrix';
import { Camera, Material, Scene, Sphere, Shader, WebGLUtils } from './src';

let angle: number = 0;
let shader: Shader;
let camera: Camera;
let earthMaterial: Material;
let earth: Sphere;
let scene: Scene;

let canvas = document.getElementById('webgl');
let gl = WebGLUtils.setupWebGL(canvas, null, null);

let earthImage = new Image();
earthImage.src = './earth.jpg';
earthImage.onload = () => setupScene();

const vertexShaderSource = `
  attribute vec3 a_Position;
  attribute vec2 a_TexCoord;

  uniform mat4 u_ModelViewProjectionMatrix;

  varying vec2 v_TexCoord;

  void main() {
    // Output tex coord to frag shader.
    v_TexCoord = a_TexCoord;

    // Output the final position.
    gl_Position = u_ModelViewProjectionMatrix * vec4(a_Position, 1.0);
  }
`;

const fragmentShaderSource = `
  #ifdef GL_ES
    precision mediump float;
  #endif

  uniform sampler2D u_Sampler;

  varying vec2 v_TexCoord;

  void main() {
    // Get texture color for tex coord.
    gl_FragColor = texture2D(u_Sampler, v_TexCoord);
  }
`;

function setupScene() {
  // Setup shader.
  shader = new Shader(gl, vertexShaderSource, fragmentShaderSource);

  // Setup camera.
  let eye = [0.0, 0.0, 5.0];
  let center = [0.0, 0.0, 0.0];
  let up = [0.0, 1.0, 0.0];
  let fov = Math.PI / 3;
  let aspect = 1.0;
  let near = 0.1;
  let far = 100.0;
  camera = new Camera(eye, center, up, fov, aspect, near, far);

  // Setup Earth.
  earthMaterial = new Material(gl, null, null, null, null, earthImage);
  earth = new Sphere(gl, earthMaterial, 2, 250, 250);

  // Setup scene.
  scene = new Scene([earth], null);

  gl.clearColor(0.0, 0.0, 0.0, 1.0);
  gl.enable(gl.DEPTH_TEST);

  WebGLUtils.animate(update, draw);
}

function update(seconds: number) {
  angle += (Math.PI / 4) * seconds;
}

function draw() {
  gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);

  earth.modelToWorld = glMatrix.mat4.create();
  glMatrix.mat4.rotateY(earth.modelToWorld, earth.modelToWorld, -angle);

  shader.draw(scene, camera);
}

is the custom library open sourced somewhere? or can you recommend a lightweight library that provides similair classes? I wanted to tweak this example a bit so it fits my use case.

@rickiesmooth Sorry I don't have the library code for this anymore. Have you tried using https://threejs.org/? It has a similar API and is easy to get started with.

I liked how small your example was (all js is just 13kb gzipped), three.js is a bit heavy for my usecase, but probably a good starting point for me to learn more about webgl. Thanks!