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twgl.js/docs/module-twgl_draw.html
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<title>twgl/draw - Documentation</title>
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<h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-twgl.html">twgl</a><ul class='methods'><li data-type='method'><a href="module-twgl.html#.bindFramebufferInfo">bindFramebufferInfo</a></li><li data-type='method'><a href="module-twgl.html#.bindUniformBlock">bindUniformBlock</a></li><li data-type='method'><a href="module-twgl.html#.createBufferInfoFromArrays">createBufferInfoFromArrays</a></li><li data-type='method'><a href="module-twgl.html#.createFramebufferInfo">createFramebufferInfo</a></li><li data-type='method'><a href="module-twgl.html#.createProgramInfo">createProgramInfo</a></li><li data-type='method'><a href="module-twgl.html#.createTexture">createTexture</a></li><li data-type='method'><a href="module-twgl.html#.createTextures">createTextures</a></li><li data-type='method'><a href="module-twgl.html#.createUniformBlockInfo">createUniformBlockInfo</a></li><li data-type='method'><a href="module-twgl.html#.createVertexArrayInfo">createVertexArrayInfo</a></li><li data-type='method'><a href="module-twgl.html#.drawBufferInfo">drawBufferInfo</a></li><li data-type='method'><a href="module-twgl.html#.drawObjectList">drawObjectList</a></li><li data-type='method'><a href="module-twgl.html#.getContext">getContext</a></li><li data-type='method'><a href="module-twgl.html#.getWebGLContext">getWebGLContext</a></li><li data-type='method'><a href="module-twgl.html#.resizeCanvasToDisplaySize">resizeCanvasToDisplaySize</a></li><li data-type='method'><a href="module-twgl.html#.resizeFramebufferInfo">resizeFramebufferInfo</a></li><li data-type='method'><a href="module-twgl.html#.resizeTexture">resizeTexture</a></li><li data-type='method'><a href="module-twgl.html#.setAttribInfoBufferFromArray">setAttribInfoBufferFromArray</a></li><li data-type='method'><a href="module-twgl.html#.setBlockUniforms">setBlockUniforms</a></li><li data-type='method'><a href="module-twgl.html#.setBuffersAndAttributes">setBuffersAndAttributes</a></li><li data-type='method'><a href="module-twgl.html#.setDefaults">setDefaults</a></li><li data-type='method'><a href="module-twgl.html#.setTextureFromArray">setTextureFromArray</a></li><li data-type='method'><a href="module-twgl.html#.setUniformBlock">setUniformBlock</a></li><li data-type='method'><a href="module-twgl.html#.setUniforms">setUniforms</a></li></ul></li><li><a href="module-twgl_attributes.html">twgl/attributes</a><ul class='methods'><li data-type='method'><a href="module-twgl_attributes.html#.createAttribsFromArrays">createAttribsFromArrays</a></li><li data-type='method'><a href="module-twgl_attributes.html#.createBufferFromArray">createBufferFromArray</a></li><li data-type='method'><a href="module-twgl_attributes.html#.createBufferFromTypedArray">createBufferFromTypedArray</a></li><li data-type='method'><a href="module-twgl_attributes.html#.createBufferInfoFromArrays">createBufferInfoFromArrays</a></li><li data-type='method'><a href="module-twgl_attributes.html#.createBuffersFromArrays">createBuffersFromArrays</a></li><li data-type='method'><a href="module-twgl_attributes.html#.createVertexArrayInfo">createVertexArrayInfo</a></li><li data-type='method'><a href="module-twgl_attributes.html#.setAttribInfoBufferFromArray">setAttribInfoBufferFromArray</a></li><li data-type='method'><a href="module-twgl_attributes.html#.setAttributePrefix">setAttributePrefix</a></li></ul></li><li><a href="module-twgl_draw.html">twgl/draw</a><ul class='methods'><li data-type='method'><a href="module-twgl_draw.html#.drawBufferInfo">drawBufferInfo</a></li><li data-type='method'><a href="module-twgl_draw.html#.drawObjectList">drawObjectList</a></li></ul></li><li><a href="module-twgl_framebuffers.html">twgl/framebuffers</a><ul class='methods'><li data-type='method'><a href="module-twgl_framebuffers.html#.bindFramebufferInfo">bindFramebufferInfo</a></li><li data-type='method'><a href="module-twgl_framebuffers.html#.createFramebufferInfo">createFramebufferInfo</a></li><li data-type='method'><a href="module-twgl_framebuffers.html#.resizeFramebufferInfo">resizeFramebufferInfo</a></li></ul></li><li><a href="module-twgl_m4.html">twgl/m4</a><ul class='methods'><li data-type='method'><a href="module-twgl_m4.html#.axisRotate">axisRotate</a></li><li data-type='method'><a href="module-twgl_m4.html#.axisRotation">axisRotation</a></li><li data-type='method'><a href="module-twgl_m4.html#.copy">copy</a></li><li data-type='method'><a href="module-twgl_m4.html#.frustum">frustum</a></li><li data-type='method'><a href="module-twgl_m4.html#.getAxis">getAxis</a></li><li data-type='method'><a href="module-twgl_m4.html#.getTranslation">getTranslation</a></li><li data-type='method'><a href="module-twgl_m4.html#.identity">identity</a></li><li data-type='method'><a href="module-twgl_m4.html#.inverse">inverse</a></li><li data-type='method'><a href="module-twgl_m4.html#.lookAt">lookAt</a></li><li data-type='method'><a href="module-twgl_m4.html#.multiply">multiply</a></li><li data-type='method'><a href="module-twgl_m4.html#.negate">negate</a></li><li data-type='method'><a href="module-twgl_m4.html#.ortho">ortho</a></li><li data-type='method'><a href="module-twgl_m4.html#.perspective">perspective</a></li><li data-type='method'><a href="module-twgl_m4.html#.rotateX">rotateX</a></li><li data-type='method'><a href="module-twgl_m4.html#.rotateY">rotateY</a></li><li data-type='method'><a href="module-twgl_m4.html#.rotateZ">rotateZ</a></li><li data-type='method'><a href="module-twgl_m4.html#.rotationX">rotationX</a></li><li data-type='method'><a href="module-twgl_m4.html#.rotationY">rotationY</a></li><li data-type='method'><a href="module-twgl_m4.html#.rotationZ">rotationZ</a></li><li data-type='method'><a href="module-twgl_m4.html#.scale">scale</a></li><li data-type='method'><a href="module-twgl_m4.html#.scaling">scaling</a></li><li data-type='method'><a href="module-twgl_m4.html#.setAxis">setAxis</a></li><li data-type='method'><a href="module-twgl_m4.html#.setTranslation">setTranslation</a></li><li data-type='method'><a href="module-twgl_m4.html#.transformDirection">transformDirection</a></li><li data-type='method'><a href="module-twgl_m4.html#.transformNormal">transformNormal</a></li><li data-type='method'><a href="module-twgl_m4.html#.transformPoint">transformPoint</a></li><li data-type='method'><a href="module-twgl_m4.html#.translate">translate</a></li><li data-type='method'><a href="module-twgl_m4.html#.translation">translation</a></li><li data-type='method'><a href="module-twgl_m4.html#.transpose">transpose</a></li></ul></li><li><a href="module-twgl_primitives.html">twgl/primitives</a><ul class='methods'><li data-type='method'><a href="module-twgl_primitives.html#.concatVertices">concatVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.create3DFBufferInfo">create3DFBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.create3DFBuffers">create3DFBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.create3DFVertices">create3DFVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createAugmentedTypedArray">createAugmentedTypedArray</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCresentBufferInfo">createCresentBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCresentBuffers">createCresentBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCresentVertices">createCresentVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCubeBufferInfo">createCubeBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCubeBuffers">createCubeBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCubeVertices">createCubeVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCylinderBufferInfo">createCylinderBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCylinderBuffers">createCylinderBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createCylinderVertices">createCylinderVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createDiscBufferInfo">createDiscBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createDiscBuffers">createDiscBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createDiscVertices">createDiscVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createPlaneBufferInfo">createPlaneBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createPlaneBuffers">createPlaneBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createPlaneVertices">createPlaneVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createSphereBufferInfo">createSphereBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createSphereBuffers">createSphereBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createSphereVertices">createSphereVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createTorusBufferInfo">createTorusBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createTorusBuffers">createTorusBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createTorusVertices">createTorusVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createTruncatedConeBufferInfo">createTruncatedConeBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createTruncatedConeBuffers">createTruncatedConeBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createTruncatedConeVertices">createTruncatedConeVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createXYQuadBufferInfo">createXYQuadBufferInfo</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createXYQuadBuffers">createXYQuadBuffers</a></li><li data-type='method'><a href="module-twgl_primitives.html#.createXYQuadVertices">createXYQuadVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.deindexVertices">deindexVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.duplicateVertices">duplicateVertices</a></li><li data-type='method'><a href="module-twgl_primitives.html#.flattenNormals">flattenNormals</a></li><li data-type='method'><a href="module-twgl_primitives.html#.makeRandomVertexColors">makeRandomVertexColors</a></li><li data-type='method'><a href="module-twgl_primitives.html#.reorientDirections">reorientDirections</a></li><li data-type='method'><a href="module-twgl_primitives.html#.reorientNormals">reorientNormals</a></li><li data-type='method'><a href="module-twgl_primitives.html#.reorientPositions">reorientPositions</a></li><li data-type='method'><a href="module-twgl_primitives.html#.reorientVertices">reorientVertices</a></li></ul></li><li><a href="module-twgl_programs.html">twgl/programs</a><ul class='methods'><li data-type='method'><a href="module-twgl_programs.html#.bindUniformBlock">bindUniformBlock</a></li><li data-type='method'><a href="module-twgl_programs.html#.createAttributeSetters">createAttributeSetters</a></li><li data-type='method'><a href="module-twgl_programs.html#.createProgram">createProgram</a></li><li data-type='method'><a href="module-twgl_programs.html#.createProgramFromScripts">createProgramFromScripts</a></li><li data-type='method'><a href="module-twgl_programs.html#.createProgramFromSources">createProgramFromSources</a></li><li data-type='method'><a href="module-twgl_programs.html#.createProgramInfo">createProgramInfo</a></li><li data-type='method'><a href="module-twgl_programs.html#.createProgramInfoFromProgram">createProgramInfoFromProgram</a></li><li data-type='method'><a href="module-twgl_programs.html#.createUniformBlockInfo">createUniformBlockInfo</a></li><li data-type='method'><a href="module-twgl_programs.html#.createUniformBlockInfoFromProgram">createUniformBlockInfoFromProgram</a></li><li data-type='method'><a href="module-twgl_programs.html#.createUniformBlockSpecFromProgram">createUniformBlockSpecFromProgram</a></li><li data-type='method'><a href="module-twgl_programs.html#.createUniformSetters">createUniformSetters</a></li><li data-type='method'><a href="module-twgl_programs.html#.setAttributes">setAttributes</a></li><li data-type='method'><a href="module-twgl_programs.html#.setBlockUniforms">setBlockUniforms</a></li><li data-type='method'><a href="module-twgl_programs.html#.setBuffersAndAttributes">setBuffersAndAttributes</a></li><li data-type='method'><a href="module-twgl_programs.html#.setUniformBlock">setUniformBlock</a></li><li data-type='method'><a href="module-twgl_programs.html#.setUniforms">setUniforms</a></li></ul></li><li><a href="module-twgl_textures.html">twgl/textures</a><ul class='methods'><li data-type='method'><a href="module-twgl_textures.html#.createTexture">createTexture</a></li><li data-type='method'><a href="module-twgl_textures.html#.createTextures">createTextures</a></li><li data-type='method'><a href="module-twgl_textures.html#.getNumComponentsForFormat">getNumComponentsForFormat</a></li><li data-type='method'><a href="module-twgl_textures.html#.loadCubemapFromUrls">loadCubemapFromUrls</a></li><li data-type='method'><a href="module-twgl_textures.html#.loadTextureFromUrl">loadTextureFromUrl</a></li><li data-type='method'><a href="module-twgl_textures.html#.resizeTexture">resizeTexture</a></li><li data-type='method'><a href="module-twgl_textures.html#.setDefaultTextureColor">setDefaultTextureColor</a></li><li data-type='method'><a href="module-twgl_textures.html#.setEmptyTexture">setEmptyTexture</a></li><li data-type='method'><a href="module-twgl_textures.html#.setTextureFilteringForSize">setTextureFilteringForSize</a></li><li data-type='method'><a href="module-twgl_textures.html#.setTextureFromArray">setTextureFromArray</a></li><li data-type='method'><a href="module-twgl_textures.html#.setTextureFromElement">setTextureFromElement</a></li><li data-type='method'><a href="module-twgl_textures.html#.setTextureParameters">setTextureParameters</a></li><li data-type='method'><a href="module-twgl_textures.html#.setTextureTo1PixelColor">setTextureTo1PixelColor</a></li></ul></li><li><a href="module-twgl_typedArray.html">twgl/typedArray</a><ul class='methods'><li data-type='method'><a href="module-twgl_typedArray.html#.getGLTypeForTypedArray">getGLTypeForTypedArray</a></li><li data-type='method'><a href="module-twgl_typedArray.html#.getTypedArrayTypeForGLType">getTypedArrayTypeForGLType</a></li></ul></li><li><a href="module-twgl_v3.html">twgl/v3</a><ul class='methods'><li data-type='method'><a href="module-twgl_v3.html#.add">add</a></li><li data-type='method'><a href="module-twgl_v3.html#.copy">copy</a></li><li data-type='method'><a href="module-twgl_v3.html#.create">create</a></li><li data-type='method'><a href="module-twgl_v3.html#.cross">cross</a></li><li data-type='method'><a href="module-twgl_v3.html#.divide">divide</a></li><li data-type='method'><a href="module-twgl_v3.html#.divScalar">divScalar</a></li><li data-type='method'><a href="module-twgl_v3.html#.dot">dot</a></li><li data-type='method'><a href="module-twgl_v3.html#.length">length</a></li><li data-type='method'><a href="module-twgl_v3.html#.lengthSq">lengthSq</a></li><li data-type='method'><a href="module-twgl_v3.html#.lerp">lerp</a></li><li data-type='method'><a href="module-twgl_v3.html#.mulScalar">mulScalar</a></li><li data-type='method'><a href="module-twgl_v3.html#.multiply">multiply</a></li><li data-type='method'><a href="module-twgl_v3.html#.negate">negate</a></li><li data-type='method'><a href="module-twgl_v3.html#.normalize">normalize</a></li><li data-type='method'><a href="module-twgl_v3.html#.subtract">subtract</a></li></ul></li></ul>
</nav>
<div id="main">
<h1 class="page-title">twgl/draw</h1>
<section>
<header>
</header>
<article>
<div class="container-overview">
<div class="description"><p>Drawing related functions</p>
<p>For backward compatibily they are available at both <code>twgl.draw</code> and <code>twgl</code><br>itself</p>
<p>See <a href="module-twgl.html"><code>module:twgl</code></a> for core functions</p></div>
<dl class="details">
</dl>
</div>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id=".drawBufferInfo"><span class="type-signature">(static) </span>drawBufferInfo<span class="signature">(gl, bufferInfo, type<span class="signature-attributes">opt</span>, count<span class="signature-attributes">opt</span>, offset<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>
<div class="description">
<p>Calls <code>gl.drawElements</code> or <code>gl.drawArrays</code>, whichever is appropriate</p>
<p>normally you'd call <code>gl.drawElements</code> or <code>gl.drawArrays</code> yourself<br>but calling this means if you switch from indexed data to non-indexed<br>data you don't have to remember to update your draw call.</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>gl</code></td>
<td class="type">
<span class="param-type">WebGLRenderingContext</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>A WebGLRenderingContext</p></td>
</tr>
<tr>
<td class="name"><code>bufferInfo</code></td>
<td class="type">
<span class="param-type"><a href="module-twgl.html#.BufferInfo">module:twgl.BufferInfo</a></span>
|
<span class="param-type"><a href="module-twgl.html#.VertexArrayInfo">module:twgl.VertexArrayInfo</a></span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>A BufferInfo as returned from <a href="module-twgl.html#.createBufferInfoFromArrays"><code>module:twgl.createBufferInfoFromArrays</code></a> or<br> a VertexArrayInfo as returned from <a href="module-twgl.html#.createVertexArrayInfo"><code>module:twgl.createVertexArrayInfo</code></a></p></td>
</tr>
<tr>
<td class="name"><code>type</code></td>
<td class="type">
<span class="param-type">enum</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>eg (gl.TRIANGLES, gl.LINES, gl.POINTS, gl.TRIANGLE_STRIP, ...). Defaults to <code>gl.TRIANGLES</code></p></td>
</tr>
<tr>
<td class="name"><code>count</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>An optional count. Defaults to bufferInfo.numElements</p></td>
</tr>
<tr>
<td class="name"><code>offset</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>An optional offset. Defaults to 0.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
</dl>
<h4 class="name" id=".drawObjectList"><span class="type-signature">(static) </span>drawObjectList<span class="signature">(objectsToDraw)</span><span class="type-signature"></span></h4>
<div class="description">
<p>Draws a list of objects</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>objectsToDraw</code></td>
<td class="type">
<span class="param-type">Array.&lt;DrawObject></span>
</td>
<td class="description last"><p>an array of objects to draw.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
</dl>
</article>
</section>
</div>
<br class="clear">
<footer>
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