The WebGLRenderingContext.drawArrays()
method of the WebGL API renders primitives from array data.
The WebGLRenderingContext.drawArrays()
method of the WebGL API renders primitives from array data.
js
drawArrays(mode, first, count)
mode
A GLenum
specifying the type primitive to render. Possible values are:
gl.POINTS
: Draws a single dot.gl.LINE_STRIP
: Draws a straight line to the next vertex.gl.LINE_LOOP
: Draws a straight line to the next vertex, and connects the last vertex back to the first. gl.LINES
: Draws a line between a pair of vertices.gl.TRIANGLE_STRIP
gl.TRIANGLE_FAN
gl.TRIANGLES
: Draws a triangle for a group of three vertices.first
A GLint
specifying the starting index in the array of vector points.
count
A GLsizei
specifying the number of indices to be rendered.
None (undefined
).
mode
is not one of the accepted values, a gl.INVALID_ENUM
error is thrown. first
or count
are negative, a gl.INVALID_VALUE
error is thrown. gl.CURRENT_PROGRAM
is null
, a gl.INVALID_OPERATION
error is thrown. js
gl.drawArrays(gl.POINTS, 0, 8);
Specification |
---|
WebGL Specification # 5.14.11 |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
drawArrays |
9 | 12 | 4 | 11 | 12 | 5.1 | 4.4.3 | 25 | 4 | 12 | 8 | 1.5 |
WebGLRenderingContext.drawElements()
ext.drawArraysInstancedANGLE()
ext.drawElementsInstancedANGLE()
ext.vertexAttribDivisorANGLE()
WebGL2RenderingContext.drawArraysInstanced()
WebGL2RenderingContext.drawElementsInstanced()
WebGL2RenderingContext.vertexAttribDivisor()
WEBGL_multi_draw.multiDrawArraysWEBGL()
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https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/drawArrays