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.
The WebGL2RenderingContext.copyTexSubImage3D() method of
the WebGL API copies pixels from the current
WebGLFramebuffer into an existing 3D texture sub-image.
Syntax
copyTexSubImage3D(target, level, xoffset, yoffset, zoffset, x, y, width, height)
Parameters
target-
A
GLenumspecifying 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
GLintspecifying the level of detail. Level 0 is the base image level and level n is the n-th mipmap reduction level. xoffset-
A
GLintspecifying the x offset within the texture image. yoffset-
A
GLintspecifying the y offset within the texture image. zoffset-
A
GLintspecifying the z offset within the texture image. x-
A
GLintspecifying the x coordinate of the lower left corner where to start copying. y-
A
GLintspecifying the y coordinate of the lower left corner where to start copying. width-
A
GLsizeispecifying the width of the texture. height-
A
GLsizeispecifying the height of the texture.
Return value
None (undefined).
Examples
gl.copyTexSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, 0, 0, 16, 16);
Specifications
| Specification |
|---|
| WebGL 2.0 Specification # 3.7.6 |
Browser compatibility
BCD tables only load in the browser