WebGL2RenderingContext: copyTexSubImage3D() method

{{APIRef("WebGL")}}{{AvailableInWorkers}}

The copyTexSubImage3D() method of the {{domxref("WebGL2RenderingContext")}} interface of the WebGL API copies pixels from the current {{domxref("WebGLFramebuffer")}} into a 3D texture sub-image.

Syntax

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

Parameters

• target
  • : A {{domxref("WebGL_API/Types", "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 {{domxref("WebGL_API/Types", "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 {{domxref("WebGL_API/Types", "GLint")}} specifying the x offset within the texture image.
• yoffset
  • : A {{domxref("WebGL_API/Types", "GLint")}} specifying the y offset within the texture image.
• zoffset
  • : A {{domxref("WebGL_API/Types", "GLint")}} specifying the z offset within the texture image.
• x
  • : A {{domxref("WebGL_API/Types", "GLint")}} specifying the x coordinate of the lower left corner where to start copying.
• y
  • : A {{domxref("WebGL_API/Types", "GLint")}} specifying the y coordinate of the lower left corner where to start copying.
• width
  • : A {{domxref("WebGL_API/Types", "GLsizei")}} specifying the width of the texture in texels.
• height
  • : A {{domxref("WebGL_API/Types", "GLsizei")}} specifying the height of the texture in texels.

Return value

None ({{jsxref("undefined")}}).

Examples

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

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{domxref("WebGLRenderingContext.copyTexImage2D()")}}
• {{domxref("WebGLRenderingContext.texImage2D()")}}
• {{domxref("WebGLRenderingContext.texSubImage2D()")}}
• {{domxref("WebGLRenderingContext.compressedTexImage2D()")}}