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- var BABYLON;!(function(t){var e=(function(t){function e(e,i,n,r,a){t.call(this,e,i,"starfieldProceduralTexture",n,r,a),this._time=1,this._alpha=.5,this._beta=.8,this._zoom=.8,this._formuparam=.53,this._stepsize=.1,this._tile=.85,this._brightness=.0015,this._darkmatter=.4,this._distfading=.73,this._saturation=.85,this.updateShaderUniforms()}return __extends(e,t),e.prototype.updateShaderUniforms=function(){this.setFloat("time",this._time),this.setFloat("alpha",this._alpha),this.setFloat("beta",this._beta),this.setFloat("zoom",this._zoom),this.setFloat("formuparam",this._formuparam),this.setFloat("stepsize",this._stepsize),this.setFloat("tile",this._tile),this.setFloat("brightness",this._brightness),this.setFloat("darkmatter",this._darkmatter),this.setFloat("distfading",this._distfading),this.setFloat("saturation",this._saturation)},Object.defineProperty(e.prototype,"time",{get:function(){return this._time},set:function(t){this._time=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"alpha",{get:function(){return this._alpha},set:function(t){this._alpha=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"beta",{get:function(){return this._beta},set:function(t){this._beta=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"formuparam",{get:function(){return this._formuparam},set:function(t){this._formuparam=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"stepsize",{get:function(){return this._stepsize},set:function(t){this._stepsize=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"zoom",{get:function(){return this._zoom},set:function(t){this._zoom=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"tile",{get:function(){return this._tile},set:function(t){this._tile=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"brightness",{get:function(){return this._brightness},set:function(t){this._brightness=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"darkmatter",{get:function(){return this._darkmatter},set:function(t){this._darkmatter=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"distfading",{get:function(){return this._distfading},set:function(t){this._distfading=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"saturation",{get:function(){return this._saturation},set:function(t){this._saturation=t,this.updateShaderUniforms()},enumerable:!0,configurable:!0}),e})(t.ProceduralTexture);t.StarfieldProceduralTexture=e})(BABYLON||(BABYLON={})),BABYLON.Effect.ShadersStore.starfieldProceduralTexturePixelShader="precision highp float;\n\n#define volsteps 20\n#define iterations 15\nvarying vec2 vPosition;\nvarying vec2 vUV;\nuniform float time;\nuniform float alpha;\nuniform float beta;\nuniform float zoom;\nuniform float formuparam;\nuniform float stepsize;\nuniform float tile;\nuniform float brightness;\nuniform float darkmatter;\nuniform float distfading;\nuniform float saturation;\nvoid main()\n{\nvec3 dir=vec3(vUV*zoom,1.);\nfloat localTime=time*0.0001;\n\nmat2 rot1=mat2(cos(alpha),sin(alpha),-sin(alpha),cos(alpha));\nmat2 rot2=mat2(cos(beta),sin(beta),-sin(beta),cos(beta));\ndir.xz*=rot1;\ndir.xy*=rot2;\nvec3 from=vec3(1.,.5,0.5);\nfrom+=vec3(-2.,localTime*2.,localTime);\nfrom.xz*=rot1;\nfrom.xy*=rot2;\n\nfloat s=0.1,fade=1.;\nvec3 v=vec3(0.);\nfor (int r=0; r<volsteps; r++) {\nvec3 p=from+s*dir*.5;\np=abs(vec3(tile)-mod(p,vec3(tile*2.))); \nfloat pa,a=pa=0.;\nfor (int i=0; i<iterations; i++) {\np=abs(p)/dot(p,p)-formuparam; \na+=abs(length(p)-pa); \npa=length(p);\n}\nfloat dm=max(0.,darkmatter-a*a*.001); \na*=a*a; \nif (r>6) fade*=1.-dm; \n\nv+=fade;\nv+=vec3(s,s*s,s*s*s*s)*a*brightness*fade; \nfade*=distfading; \ns+=stepsize;\n}\nv=mix(vec3(length(v)),v,saturation); \ngl_FragColor=vec4(v*.01,1.);\n}";
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