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How to use WebGLContext method in wpt
Best JavaScript code snippet using wpt
laya.webgl.js
Source:laya.webgl.js 
...3923 return gl;3924 }3925 return null;3926 }3927 WebGL.mainContext=RunDriver.getWebGLContext(Render._mainCanvas);3928 if (WebGL.mainContext==null)3929 return false;3930 if (Render.isWebGL)return true;3931 HTMLImage.create=function (src,def){3932 return new WebGLImage(src,def);3933 }3934 HTMLSubImage.create=function (canvas,offsetX,offsetY,width,height,atlasImage,src){3935 return new WebGLSubImage(canvas,offsetX,offsetY,width,height,atlasImage,src);3936 }3937 Render.WebGL=WebGL;3938 Render.isWebGL=true;3939 DrawText.__init__();3940 RunDriver.createRenderSprite=function (type,next){3941 return new RenderSprite3D(type,next);3942 }3943 RunDriver.createWebGLContext2D=function (c){3944 return new WebGLContext2D(c);3945 }3946 RunDriver.changeWebGLSize=function (width,height){3947 laya.webgl.WebGL.onStageResize(width,height);3948 }3949 RunDriver.createGraphics=function (){3950 return new GraphicsGL();3951 };3952 var action=RunDriver.createFilterAction;3953 RunDriver.createFilterAction=action ? action :function (type){3954 return new ColorFilterActionGL()3955 }3956 RunDriver.clear=function (color){3957 RenderState2D.worldScissorTest && laya.webgl.WebGL.mainContext.disable(/*laya.webgl.WebGLContext.SCISSOR_TEST*/0x0C11);3958 var ctx=Render.context.ctx;3959 var c=(ctx._submits._length==0 || Config.preserveDrawingBuffer)? Color.create(color)._color :Stage._wgColor;3960 if (c)ctx.clearBG(c[0],c[1],c[2],c[3]);3961 RenderState2D.clear();3962 }3963 RunDriver.addToAtlas=function (texture,force){3964 (force===void 0)&& (force=false);3965 var bitmap=texture.bitmap;3966 if (!Render.optimizeTextureMemory(texture.url,texture)){3967 (bitmap).enableMerageInAtlas=false;3968 return;3969 }3970 if ((Laya.__typeof(bitmap,'laya.webgl.resource.IMergeAtlasBitmap'))&& ((bitmap).allowMerageInAtlas)){3971 bitmap.on(/*laya.events.Event.RECOVERED*/"recovered",texture,texture.addTextureToAtlas);3972 }3973 }3974 RunDriver.isAtlas=function (bitmap){3975 return (bitmap instanceof laya.webgl.atlas.AtlasWebGLCanvas );3976 }3977 AtlasResourceManager._enable();3978 RunDriver.beginFlush=function (){3979 var atlasResourceManager=AtlasResourceManager.instance;3980 var count=atlasResourceManager.getAtlaserCount();3981 for (var i=0;i < count;i++){3982 var atlerCanvas=atlasResourceManager.getAtlaserByIndex(i).texture;3983 (atlerCanvas._flashCacheImageNeedFlush)&& (RunDriver.flashFlushImage(atlerCanvas));3984 }3985 }3986 RunDriver.drawToCanvas=function (sprite,_renderType,canvasWidth,canvasHeight,offsetX,offsetY){3987 if (canvasWidth <=0 || canvasHeight <=0){3988 console.log("[error] canvasWidth and canvasHeight should greater than zero");3989 }3990 offsetX-=sprite.x;3991 offsetY-=sprite.y;3992 var renderTarget=RenderTarget2D.create(canvasWidth,canvasHeight,/*laya.webgl.WebGLContext.RGBA*/0x1908,/*laya.webgl.WebGLContext.UNSIGNED_BYTE*/0x1401,0,false);3993 renderTarget.start();3994 renderTarget.clear(0,0,0,0);3995 Render.context.clear();3996 RenderSprite.renders[_renderType]._fun(sprite,Render.context,offsetX,RenderState2D.height-canvasHeight+offsetY);3997 Render.context.flush();3998 renderTarget.end();3999 var pixels=renderTarget.getData(0,0,renderTarget.width,renderTarget.height);4000 renderTarget.recycle();4001 var htmlCanvas=new WebGLCanvas();4002 htmlCanvas._canvas=Browser.createElement("canvas");4003 htmlCanvas.size(canvasWidth,canvasHeight);4004 var context=htmlCanvas._canvas.getContext('2d');4005 Browser.canvas.size(canvasWidth,canvasHeight);4006 var tempContext=Browser.context;4007 var imgData=tempContext.createImageData(canvasWidth,canvasHeight);4008 imgData.data.set(/*__JS__ */new Uint8ClampedArray(pixels.buffer));4009 htmlCanvas._imgData=imgData;4010 tempContext.putImageData(imgData,0,0);4011 context.save();4012 context.translate(0,canvasHeight);4013 context.scale(1,-1);4014 context.drawImage(Browser.canvas.source,0,0);4015 context.restore();4016 return htmlCanvas;4017 }4018 RunDriver.createFilterAction=function (type){4019 var action;4020 switch (type){4021 case /*laya.filters.Filter.COLOR*/0x20:4022 action=new ColorFilterActionGL();4023 break ;4024 }4025 return action;4026 }4027 RunDriver.addTextureToAtlas=function (texture){4028 texture._uvID++;4029 AtlasResourceManager._atlasRestore++;4030 ((texture.bitmap).enableMerageInAtlas)&& (AtlasResourceManager.instance.addToAtlas(texture));4031 }4032 RunDriver.getTexturePixels=function (value,x,y,width,height){4033 (Render.context.ctx).clear();4034 var tSprite=new Sprite();4035 tSprite.graphics.drawTexture(value,-x,-y);4036 var tRenderTarget=RenderTarget2D.create(width,height);4037 tRenderTarget.start();4038 tRenderTarget.clear(0,0,0,0);4039 tSprite.render(Render.context,0,0);4040 (Render.context.ctx).flush();4041 tRenderTarget.end();4042 var tUint8Array=tRenderTarget.getData(0,0,width,height);4043 var tArray=[];4044 var tIndex=0;4045 for (var i=height-1;i >=0;i--){4046 for (var j=0;j < width;j++){4047 tIndex=(i *width+j)*4;4048 tArray.push(tUint8Array[tIndex]);4049 tArray.push(tUint8Array[tIndex+1]);4050 tArray.push(tUint8Array[tIndex+2]);4051 tArray.push(tUint8Array[tIndex+3]);4052 }4053 }4054 return tArray;4055 }4056 RunDriver.skinAniSprite=function (){4057 var tSkinSprite=new SkinMesh()4058 return tSkinSprite;4059 }4060 HTMLCanvas.create=function (type,canvas){4061 var ret=new WebGLCanvas();4062 ret._imgData=canvas;4063 ret.flipY=false;4064 return ret;4065 }4066 Filter._filterStart=function (scope,sprite,context,x,y){4067 var b=scope.getValue("bounds");4068 var source=RenderTarget2D.create(b.width,b.height);4069 source.start();4070 source.clear(0,0,0,0);4071 scope.addValue("src",source);4072 scope.addValue("ScissorTest",RenderState2D.worldScissorTest);4073 if (RenderState2D.worldScissorTest){4074 var tClilpRect=new Rectangle();4075 tClilpRect.copyFrom((context.ctx)._clipRect)4076 scope.addValue("clipRect",tClilpRect);4077 RenderState2D.worldScissorTest=false;4078 laya.webgl.WebGL.mainContext.disable(/*laya.webgl.WebGLContext.SCISSOR_TEST*/0x0C11);4079 }4080 }4081 Filter._filterEnd=function (scope,sprite,context,x,y){4082 var b=scope.getValue("bounds");4083 var source=scope.getValue("src");4084 source.end();4085 var out=RenderTarget2D.create(b.width,b.height);4086 out.start();4087 out.clear(0,0,0,0);4088 scope.addValue("out",out);4089 sprite._set$P('_filterCache',out);4090 sprite._set$P('_isHaveGlowFilter',scope.getValue("_isHaveGlowFilter"));4091 }4092 Filter._EndTarget=function (scope,context){4093 var source=scope.getValue("src");4094 source.recycle();4095 var out=scope.getValue("out");4096 out.end();4097 var b=scope.getValue("ScissorTest");4098 if (b){4099 RenderState2D.worldScissorTest=true;4100 laya.webgl.WebGL.mainContext.enable(/*laya.webgl.WebGLContext.SCISSOR_TEST*/0x0C11);4101 context.ctx.save();4102 var tClipRect=scope.getValue("clipRect");4103 (context.ctx).clipRect(tClipRect.x,tClipRect.y,tClipRect.width,tClipRect.height);4104 }4105 }4106 Filter._useSrc=function (scope){4107 var source=scope.getValue("out");4108 source.end();4109 source=scope.getValue("src");4110 source.start();4111 source.clear(0,0,0,0);4112 }4113 Filter._endSrc=function (scope){4114 var source=scope.getValue("src");4115 source.end();4116 }4117 Filter._useOut=function (scope){4118 var source=scope.getValue("src");4119 source.end();4120 source=scope.getValue("out");4121 source.start();4122 source.clear(0,0,0,0);4123 }4124 Filter._endOut=function (scope){4125 var source=scope.getValue("out");4126 source.end();4127 }4128 Filter._recycleScope=function (scope){4129 scope.recycle();4130 }4131 Filter._filter=function (sprite,context,x,y){4132 var next=this._next;4133 if (next){4134 var filters=sprite.filters,len=filters.length;4135 if (len==1 && (filters[0].type==/*laya.filters.Filter.COLOR*/0x20)){4136 context.ctx.save();4137 context.ctx.setFilters([filters[0]]);4138 next._fun.call(next,sprite,context,x,y);4139 context.ctx.restore();4140 return;4141 };4142 var shaderValue;4143 var b;4144 var scope=SubmitCMDScope.create();4145 var p=Point.TEMP;4146 var tMatrix=context.ctx._getTransformMatrix();4147 var mat=Matrix.create();4148 tMatrix.copyTo(mat);4149 var tPadding=0;4150 var tHalfPadding=0;4151 var tIsHaveGlowFilter=false;4152 var out=sprite._$P._filterCache ? sprite._$P._filterCache :null;4153 if (!out || sprite._repaint){4154 tIsHaveGlowFilter=sprite._isHaveGlowFilter();4155 scope.addValue("_isHaveGlowFilter",tIsHaveGlowFilter);4156 if (tIsHaveGlowFilter){4157 tPadding=50;4158 tHalfPadding=25;4159 }4160 b=new Rectangle();4161 b.copyFrom((sprite).getSelfBounds());4162 b.x+=(sprite).x;4163 b.y+=(sprite).y;4164 b.x-=(sprite).pivotX+4;4165 b.y-=(sprite).pivotY+4;4166 var tSX=b.x;4167 var tSY=b.y;4168 b.width+=(tPadding+8);4169 b.height+=(tPadding+8);4170 p.x=b.x *mat.a+b.y *mat.c;4171 p.y=b.y *mat.d+b.x *mat.b;4172 b.x=p.x;4173 b.y=p.y;4174 p.x=b.width *mat.a+b.height *mat.c;4175 p.y=b.height *mat.d+b.width *mat.b;4176 b.width=p.x;4177 b.height=p.y;4178 if (b.width <=0 || b.height <=0){4179 return;4180 }4181 out && out.recycle();4182 scope.addValue("bounds",b);4183 var submit=SubmitCMD.create([scope,sprite,context,0,0],Filter._filterStart);4184 context.addRenderObject(submit);4185 (context.ctx)._renderKey=0;4186 (context.ctx)._shader2D.glTexture=null;4187 var tX=sprite.x-tSX+tHalfPadding;4188 var tY=sprite.y-tSY+tHalfPadding;4189 next._fun.call(next,sprite,context,tX,tY);4190 submit=SubmitCMD.create([scope,sprite,context,0,0],Filter._filterEnd);4191 context.addRenderObject(submit);4192 for (var i=0;i < len;i++){4193 if (i !=0){4194 submit=SubmitCMD.create([scope],Filter._useSrc);4195 context.addRenderObject(submit);4196 shaderValue=Value2D.create(/*laya.webgl.shader.d2.ShaderDefines2D.TEXTURE2D*/0x01,0);4197 Matrix.TEMP.identity();4198 context.ctx.drawTarget(scope,0,0,b.width,b.height,Matrix.TEMP,"out",shaderValue,null,BlendMode.TOINT.overlay);4199 submit=SubmitCMD.create([scope],Filter._useOut);4200 context.addRenderObject(submit);4201 };4202 var fil=filters[i];4203 fil.action.apply3d(scope,sprite,context,0,0);4204 }4205 submit=SubmitCMD.create([scope,context],Filter._EndTarget);4206 context.addRenderObject(submit);4207 }else {4208 tIsHaveGlowFilter=sprite._$P._isHaveGlowFilter ? sprite._$P._isHaveGlowFilter :false;4209 if (tIsHaveGlowFilter){4210 tPadding=50;4211 tHalfPadding=25;4212 }4213 b=sprite.getBounds();4214 if (b.width <=0 || b.height <=0){4215 return;4216 }4217 b.width+=tPadding;4218 b.height+=tPadding;4219 p.x=b.x *mat.a+b.y *mat.c;4220 p.y=b.y *mat.d+b.x *mat.b;4221 b.x=p.x;4222 b.y=p.y;4223 p.x=b.width *mat.a+b.height *mat.c;4224 p.y=b.height *mat.d+b.width *mat.b;4225 b.width=p.x;4226 b.height=p.y;4227 scope.addValue("out",out);4228 }4229 x=x-tHalfPadding-sprite.x;4230 y=y-tHalfPadding-sprite.y;4231 p.setTo(x,y);4232 mat.transformPoint(p);4233 x=p.x+b.x;4234 y=p.y+b.y;4235 shaderValue=Value2D.create(/*laya.webgl.shader.d2.ShaderDefines2D.TEXTURE2D*/0x01,0);4236 Matrix.TEMP.identity();4237 (context.ctx).drawTarget(scope,x,y,b.width,b.height,Matrix.TEMP,"out",shaderValue,null,BlendMode.TOINT.overlay);4238 submit=SubmitCMD.create([scope],Filter._recycleScope);4239 context.addRenderObject(submit);4240 mat.destroy();4241 }4242 }4243 Float32Array.prototype.slice || (Float32Array.prototype.slice=WebGL._float32ArraySlice);4244 Uint16Array.prototype.slice || (Uint16Array.prototype.slice=WebGL._uint16ArraySlice);4245 Uint8Array.prototype.slice || (Uint8Array.prototype.slice=WebGL._uint8ArraySlice);4246 return true;4247 }4248 WebGL.onStageResize=function(width,height){4249 if (WebGL.mainContext==null)return;4250 WebGL.mainContext.viewport(0,0,width,height);4251 RenderState2D.width=width;4252 RenderState2D.height=height;4253 }4254 WebGL.onInvalidGLRes=function(){4255 AtlasResourceManager.instance.freeAll();4256 ResourceManager.releaseContentManagers(true);4257 WebGL.doNodeRepaint(Laya.stage);4258 WebGL.mainContext.viewport(0,0,RenderState2D.width,RenderState2D.height);4259 Laya.stage.event(/*laya.events.Event.DEVICE_LOST*/"devicelost");4260 }4261 WebGL.doNodeRepaint=function(sprite){4262 (sprite.numChildren==0)&& (sprite.repaint());4263 for (var i=0;i < sprite.numChildren;i++)4264 WebGL.doNodeRepaint(sprite.getChildAt(i));4265 }4266 WebGL.init=function(canvas,width,height){4267 WebGL.mainCanvas=canvas;4268 HTMLCanvas._createContext=function (canvas){4269 return new WebGLContext2D(canvas);4270 }4271 WebGLCanvas._createContext=function (canvas){4272 return new WebGLContext2D(canvas);4273 };4274 var gl=laya.webgl.WebGL.mainContext;4275 if (gl.getShaderPrecisionFormat !=null){4276 var vertexPrecisionFormat=gl.getShaderPrecisionFormat(/*laya.webgl.WebGLContext.VERTEX_SHADER*/0x8B31,/*laya.webgl.WebGLContext.HIGH_FLOAT*/0x8DF2);4277 var framePrecisionFormat=gl.getShaderPrecisionFormat(/*laya.webgl.WebGLContext.FRAGMENT_SHADER*/0x8B30,/*laya.webgl.WebGLContext.HIGH_FLOAT*/0x8DF2);4278 WebGL.shaderHighPrecision=(vertexPrecisionFormat.precision&&framePrecisionFormat.precision)? true :false;4279 }else {4280 WebGL.shaderHighPrecision=false;4281 }4282 WebGL.compressAstc=gl.getExtension("WEBGL_compressed_texture_astc");4283 WebGL.compressAtc=gl.getExtension("WEBGL_compressed_texture_atc");4284 WebGL.compressEtc=gl.getExtension("WEBGL_compressed_texture_etc");4285 WebGL.compressEtc1=gl.getExtension("WEBGL_compressed_texture_etc1");4286 WebGL.compressPvrtc=gl.getExtension("WEBGL_compressed_texture_pvrtc");4287 WebGL.compressS3tc=gl.getExtension("WEBGL_compressed_texture_s3tc");4288 WebGL.compressS3tc_srgb=gl.getExtension("WEBGL_compressed_texture_s3tc_srgb");4289 gl.deleteTexture1=gl.deleteTexture;4290 gl.deleteTexture=function (t){4291 if (t==WebGLContext.curBindTexValue){4292 WebGLContext.curBindTexValue=null;4293 }4294 gl.deleteTexture1(t);4295 }4296 WebGL.onStageResize(width,height);4297 if (WebGL.mainContext==null)4298 throw new Error("webGL getContext err!");4299 System.__init__();4300 AtlasResourceManager.__init__();4301 ShaderDefines2D.__init__();4302 Submit.__init__();4303 WebGLContext2D.__init__();4304 Value2D.__init__();4305 Shader2D.__init__();4306 Buffer2D.__int__(gl);4307 BlendMode._init_(gl);4308 if (Render.isConchApp){4309 /*__JS__ */conch.setOnInvalidGLRes(WebGL.onInvalidGLRes);4310 }4311 }4312 WebGL.compressAstc=null;4313 WebGL.compressAtc=null;4314 WebGL.compressEtc=null;4315 WebGL.compressEtc1=null;4316 WebGL.compressPvrtc=null;4317 WebGL.compressS3tc=null;4318 WebGL.compressS3tc_srgb=null;4319 WebGL.mainCanvas=null;4320 WebGL.mainContext=null;4321 WebGL.antialias=true;4322 WebGL.shaderHighPrecision=false;4323 WebGL._bg_null=[0,0,0,0];4324 return WebGL;4325})()4326//class laya.webgl.WebGLContext4327var WebGLContext=(function(){4328 function WebGLContext(){}4329 __class(WebGLContext,'laya.webgl.WebGLContext');4330 WebGLContext.UseProgram=function(program){4331 if (WebGLContext._useProgram===program)return false;4332 WebGL.mainContext.useProgram(program);4333 WebGLContext._useProgram=program;4334 return true;4335 }4336 WebGLContext.setDepthTest=function(gl,value){4337 value!==WebGLContext._depthTest && (WebGLContext._depthTest=value,value?gl.enable(/*CLASS CONST:laya.webgl.WebGLContext.DEPTH_TEST*/0x0B71):gl.disable(/*CLASS CONST:laya.webgl.WebGLContext.DEPTH_TEST*/0x0B71));4338 }4339 WebGLContext.setDepthMask=function(gl,value){4340 value!==WebGLContext._depthMask && (WebGLContext._depthMask=value,gl.depthMask(value));4341 }4342 WebGLContext.setDepthFunc=function(gl,value){...
Using AI Code Generation
1function test() {2 var canvas = document.getElementById("canvas");3 var gl = canvas.getContext("webgl");4 gl.clearColor(0.0, 0.0, 0.0, 1.0);5 gl.clear(gl.COLOR_BUFFER_BIT);6}7function test() {8 var canvas = document.getElementById("canvas");9 var gl = canvas.getContext("webgl");10 gl.clearColor(0.0, 0.0, 0.0, 1.0);11 gl.clear(gl.COLOR_BUFFER_BIT);12}13var canvas = document.getElementById("canvas");14var gl = canvas.getContext("webgl");15var canvas = document.getElementById("canvas");16var gl = canvas.getContext("webgl");17var canvas = document.getElementById("canvas");18var gl = canvas.getContext("webgl");
Using AI Code Generation
1var context = WebGLTestUtils.create3DContext(canvas);2var context = WebGLTestUtils.create3DContext(canvas, undefined, 2);3var context = WebGLTestUtils.create3DContext(canvas, undefined, 2, {antialias: false});4var context = WebGLTestUtils.create3DContext(canvas);5var context = WebGLTestUtils.create3DContext(canvas, undefined, 2);6var context = WebGLTestUtils.create3DContext(canvas, undefined, 2, {antialias: false});7var context = WebGLTestUtils.create3DContext(canvas);8var context = WebGLTestUtils.create3DContext(canvas, undefined, 2);9var context = WebGLTestUtils.create3DContext(canvas, undefined, 2, {antialias: false});10var context = WebGLTestUtils.create3DContext(canvas);11var context = WebGLTestUtils.create3DContext(canvas, undefined, 2);12var context = WebGLTestUtils.create3DContext(canvas, undefined, 2, {antialias: false});13var context = WebGLTestUtils.create3DContext(canvas);14var context = WebGLTestUtils.create3DContext(canvas, undefined, 2);15var context = WebGLTestUtils.create3DContext(canvas, undefined, 2, {antialias: false});16var context = WebGLTestUtils.create3DContext(canvas);17var context = WebGLTestUtils.create3DContext(canvas, undefined, 2);
Using AI Code Generation
1var canvas = document.createElement("canvas");2var context = canvas.getContext("webgl");3var webglContext = context.getExtension("WEBGL_debug_renderer_info");4var vendor = context.getParameter(webglContext.UNMASKED_VENDOR_WEBGL);5var renderer = context.getParameter(webglContext.UNMASKED_RENDERER_WEBGL);6console.log("WebGL Vendor: " + vendor);7console.log("WebGL Renderer: " + renderer);8var resultsDiv = document.getElementById("results");9resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;10var resultsDiv = document.getElementById("results");11resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;12var resultsDiv = document.getElementById("results");13resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;14var resultsDiv = document.getElementById("results");15resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;16var resultsDiv = document.getElementById("results");17resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;18var resultsDiv = document.getElementById("results");19resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;20var resultsDiv = document.getElementById("results");21resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;22var resultsDiv = document.getElementById("results");23resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;24var resultsDiv = document.getElementById("results");25resultsDiv.innerHTML = "WebGL Vendor: " + vendor + "<br>WebGL Renderer: " + renderer;26var resultsDiv = document.getElementById("results");
Using AI Code Generation
1var WebGLContext = require('webgl-context');2var gl = WebGLContext.create3D({width: 100, height: 100});3var canvas = document.createElement('canvas');4var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');5var canvas = document.createElement('canvas');6var gl = canvas.getContext('webgl');7var canvas = document.createElement('canvas');8var gl = canvas.getContext('webgl', {alpha: false});9var canvas = document.createElement('canvas');10var gl = canvas.getContext('webgl', {alpha: true});11var canvas = document.createElement('canvas');12var gl = canvas.getContext('webgl', {depth: false});13var canvas = document.createElement('canvas');14var gl = canvas.getContext('webgl', {depth: true});15var canvas = document.createElement('canvas');16var gl = canvas.getContext('webgl', {stencil: false});17var canvas = document.createElement('canvas');18var gl = canvas.getContext('webgl', {stencil: true});19var canvas = document.createElement('canvas');20var gl = canvas.getContext('webgl', {antialias: false});21var canvas = document.createElement('canvas');22var gl = canvas.getContext('webgl', {antialias: true});23var canvas = document.createElement('canvas');24var gl = canvas.getContext('webgl', {premultipliedAlpha: false});25var canvas = document.createElement('canvas');26var gl = canvas.getContext('webgl', {premultipliedAlpha: true});27var canvas = document.createElement('canvas');28var gl = canvas.getContext('webgl', {preserveDrawingBuffer: false});
Using AI Code Generation
1function testWebGLContext() {2 var canvas = document.getElementById("canvas");3 var gl = canvas.getContext("webgl");4 var context = new WebGLContext(gl);5 context.enable(gl.BLEND);6 context.disable(gl.BLEND);7 context.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA);8 context.blendColor(0.5, 0.5, 0.5, 0.5);9 context.blendEquation(gl.FUNC_ADD);10 context.blendEquationSeparate(gl.FUNC_ADD, gl.FUNC_ADD);11 context.viewport(0, 0, 10, 10);12 context.scissor(0, 0, 10, 10);13 context.lineWidth(1.0);14 context.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, 1);15 context.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 1);16 context.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE);17 context.cullFace(gl.FRONT);18 context.frontFace(gl.CCW);19 context.enable(gl.CULL_FACE);20 context.disable(gl.CULL_FACE);21 context.enable(gl.POLYGON_OFFSET_FILL);22 context.disable(gl.POLYGON_OFFSET_FILL);23 context.polygonOffset(0.0, 0.0);24 context.activeTexture(gl.TEXTURE0);25 context.bindTexture(gl.TEXTURE_2D, gl.createTexture());26 context.bindTexture(gl.TEXTURE_CUBE_MAP, gl.createTexture());27 context.useProgram(gl.createProgram());28 context.uniform1f(gl.getUniformLocation(gl.createProgram(), "test"), 1.0);29 context.uniform1fv(gl.getUniformLocation(gl.createProgram(), "test"), new Float32Array(1));30 context.uniform1i(gl.getUniformLocation(gl.createProgram(), "test"), 1);31 context.uniform1iv(gl.getUniformLocation(gl.createProgram(), "test"), new Int32Array(1));32 context.uniform2f(gl.getUniformLocation(gl.createProgram(), "test"), 1.0, 1.0);33 context.uniform2fv(gl.getUniformLocation(gl.createProgram(), "test"), new Float32Array(2));34 context.uniform2i(gl.getUniformLocation(gl.createProgram(), "test"), 1, 1);35 context.uniform2iv(gl.getUniformLocation(gl.createProgram(), "test"), new Int32Array(2));
Using AI Code Generation
1var wpt = new WebGLContext();2var canvas = document.getElementById("canvas");3var gl = canvas.getContext("webgl");4var program = wpt.createProgramFromScriptTags(gl, "vertex-shader", "fragment-shader");5gl.useProgram(program);6var positionLocation = gl.getAttribLocation(program, "a_position");7var positionBuffer = gl.createBuffer();8gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);9];10gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);11gl.enableVertexAttribArray(positionLocation);12gl.vertexAttribPointer(positionLocation, 2, gl.FLOAT, false, 0, 0);13var colorLocation = gl.getAttribLocation(program, "a_color");14var colorBuffer = gl.createBuffer();15gl.bindBuffer(gl.ARRAY_BUFFER, colorBuffer);16];17gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(colors), gl.STATIC_DRAW);18gl.enableVertexAttribArray(colorLocation);19gl.vertexAttribPointer(colorLocation, 3, gl.FLOAT, false, 0, 0);20var matrixLocation = gl.getUniformLocation(program, "u_matrix");21var translation = [200, 150];22var angleInRadians = 0;23var scale = [1, 1];24drawScene();25webglLessonsUI.setupSlider("#x", {value: translation[0], slide: updatePosition(0), max: gl.canvas.width});26webglLessonsUI.setupSlider("#y", {value: translation[1], slide: updatePosition(1), max: gl.canvas.height});27webglLessonsUI.setupSlider("#angle", {slide: updateAngle, max: 360});28webglLessonsUI.setupSlider("#scaleX", {value: scale[0], slide: updateScale(0), max: 2, min: -2, step: .01, precision: 2});29webglLessonsUI.setupSlider("#scaleY", {value: scale[1], slide: updateScale(1), max: 2, min
Using AI Code Generation
1var canvas = document.createElement('canvas');2var gl = canvas.getContext('webgl');3var context = gl.getContextAttributes();4if (context.alpha == false) {5 testPassed('getContextAttributes() returns false for alpha');6} else {7 testFailed('getContextAttributes() returns true for alpha');8}9finishJSTest();
Using AI Code Generation
1var wtu = WebGLTestUtils;2var gl = null;3var successfullyParsed = false;4var canvas = null;5function runTest()6{7 debug("");8 debug("This test verifies that WebGL compiles shaders with array of structs.");9 debug("");10 canvas = document.createElement("canvas");11 canvas.width = 1;12 canvas.height = 1;13 document.body.appendChild(canvas);14 gl = wtu.create3DContext(canvas);15 if (!gl) {16 testFailed("WebGL context does not exist");17 return;18 }19 var program = gl.createProgram();20 var vshader = gl.createShader(gl.VERTEX_SHADER);21 var fshader = gl.createShader(gl.FRAGMENT_SHADER);22 var vshaderSource = "attribute vec4 a_position;23void main(void) {24 gl_Position = a_position;25}26";27 var fshaderSource = "precision mediump float;28void main(void) {29 gl_FragColor = vec4(1.0, 1.0, 1.0, 1.0);30}31";32 gl.shaderSource(vshader, vshaderSource);33 gl.compileShader(vshader);34 if (!gl.getShaderParameter(vshader, gl.COMPILE_STATUS)) {35 testFailed("Vertex shader failed to compile");36 return;37 }38 gl.shaderSource(fshader, fshaderSource);39 gl.compileShader(fshader);40 if (!gl.getShaderParameter(fshader, gl.COMPILE_STATUS)) {41 testFailed("Fragment shader failed to compile");42 return;43 }44 gl.attachShader(program, vshader);45 gl.attachShader(program, fshader);46 gl.linkProgram(program);47 if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {48 testFailed("Program failed to link");
Using AI Code Generation
1function testWebGL() {2 if (wpt.webglEnabled()) {3 var canvas = document.createElement("canvas");4 var gl = canvas.getContext("webgl");5 if (gl) {6 return true;7 }8 }9 return false;10}11function testWebGL() {12 if (wpt.webglEnabled()) {13 var canvas = document.createElement("canvas");14 var gl = canvas.getContext("webgl");15 if (gl) {16 return true;17 }18 }19 return false;20}21function testWebGL() {22 if (wpt.webglEnabled()) {23 var canvas = document.createElement("canvas");24 var gl = canvas.getContext("webgl");25 if (gl) {26 return true;27 }28 }29 return false;30}31function testWebGL() {32 if (wpt.webglEnabled()) {33 var canvas = document.createElement("canvas");34 var gl = canvas.getContext("webgl");35 if (gl) {36 return true;37 }38 }39 return false;40}41function testWebGL() {42 if (wpt.webglEnabled()) {
Automation Testing Tutorials
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