activeTexture attachShader bindAttribLocation bindBuffer bindFramebuffer bindRenderbuffer bindTexture blendColor blendEquation blendEquationSeparate blendFunc blendFuncSeparate bufferData bufferSubData canvas checkFramebufferStatus clear clearColor clearDepth clearStencil colorMask compileShader compressedTexImage2D compressedTexSubImage2D copyTexImage2D copyTexSubImage2D createBuffer createFramebuffer createProgram createRenderbuffer createShader createTexture cullFace deleteBuffer deleteFramebuffer deleteProgram deleteRenderbuffer deleteShader deleteTexture depthFunc depthMask depthRange detachShader disable disableVertexAttribArray drawArrays drawElements drawingBufferColorSpace drawingBufferHeight drawingBufferWidth enable enableVertexAttribArray finish flush framebufferRenderbuffer framebufferTexture2D frontFace generateMipmap getActiveAttrib getActiveUniform getAttachedShaders getAttribLocation getBufferParameter getContextAttributes getError getExtension getFramebufferAttachmentParameter getParameter getProgramInfoLog getProgramParameter getRenderbufferParameter getShaderInfoLog getShaderParameter getShaderPrecisionFormat getShaderSource getSupportedExtensions getTexParameter getUniform getUniformLocation getVertexAttrib getVertexAttribOffset hint isBuffer isContextLost isEnabled isFramebuffer isProgram isRenderbuffer isShader isTexture lineWidth linkProgram makeXRCompatible pixelStorei polygonOffset readPixels renderbufferStorage sampleCoverage scissor shaderSource stencilFunc stencilFuncSeparate stencilMask stencilMaskSeparate stencilOp stencilOpSeparate texImage2D texParameter texSubImage2D uniform uniformMatrix unpackColorSpace useProgram validateProgram vertexAttrib vertexAttribPointer viewport