WebGL2RenderingContext: copyTexSubImage3D() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.

Note: This feature is available in Web Workers.

The WebGL2RenderingContext.copyTexSubImage3D() method of the WebGL API copies pixels from the current WebGLFramebuffer into an existing 3D texture sub-image.

Syntax

js
copyTexSubImage3D(target, level, xoffset, yoffset, zoffset, x, y, width, height)

Parameters

target

A GLenum specifying the binding point (target) of the active texture. Possible values:

  • gl.TEXTURE_3D: A three-dimensional texture.
  • gl.TEXTURE_2D_ARRAY: A two-dimensional array texture.
level

A GLint specifying the level of detail. Level 0 is the base image level and level n is the n-th mipmap reduction level.

xoffset

A GLint specifying the x offset within the texture image.

yoffset

A GLint specifying the y offset within the texture image.

zoffset

A GLint specifying the z offset within the texture image.

x

A GLint specifying the x coordinate of the lower left corner where to start copying.

y

A GLint specifying the y coordinate of the lower left corner where to start copying.

width

A GLsizei specifying the width of the texture.

height

A GLsizei specifying the height of the texture.

Return value

None (undefined).

Examples

js
gl.copyTexSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, 0, 0, 16, 16);

Specifications

Specification
WebGL 2.0 Specification
# 3.7.6

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
copyTexSubImage3D

Legend

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Full support
Full support

See also