The WebGL2RenderingContext.compressedTexSubImage3D()
method of the WebGL API specifies a three-dimensional sub-rectangle for a texture image in a compressed format.
The WebGL2RenderingContext.compressedTexSubImage3D()
method of the WebGL API specifies a three-dimensional sub-rectangle for a texture image in a compressed format.
js
compressedTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth, format, imageSize, offset) compressedTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth, format, srcData) compressedTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth, format, srcData, srcOffset) compressedTexSubImage3D(target, level, xoffset, yoffset, zoffset, width, height, depth, format, srcData, srcOffset, srcLengthOverride)
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 compressed texture image.
yoffset
A GLint
specifying the y offset within the compressed texture image.
zoffset
A GLint
specifying the z offset within the compressed texture image.
width
A GLsizei
specifying the width of the texture.
height
A GLsizei
specifying the height of the texture.
depth
A GLsizei
specifying the depth of the texture.
format
A GLenum
specifying the compressed image format. Possible values:
gl.COMPRESSED_R11_EAC
gl.COMPRESSED_SIGNED_R11_EAC
gl.COMPRESSED_RG11_EAC
gl.COMPRESSED_SIGNED_RG11_EAC
gl.COMPRESSED_RGB8_ETC2
gl.COMPRESSED_RGBA8_ETC2_EAC
gl.COMPRESSED_SRGB8_ETC2
gl.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
gl.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
gl.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
imageSize
A GLint
specifying the number of bytes to read from the buffer bound to gl.PIXEL_UNPACK_BUFFER
.
offset
A GLint
specifying the offset in bytes from which to read from the buffer bound to gl.PIXEL_UNPACK_BUFFER
.
srcData
A TypedArray
or a DataView
object that will be used as a data store for the compressed image data in memory.
None (undefined
).
js
gl.compressedTexSubImage3D( gl.TEXTURE_3D, 0, 0, 0, 512, 512, 512, gl.COMPRESSED_R11_EAC, textureData, );
Specification |
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WebGL 2.0 Specification # 3.7.6 |
Desktop | Mobile | |||||||||||
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Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
compressedTexSubImage3D |
56 | 79 | 51 | No | 43 | 15 | 58 | 58 | 51 | 43 | 15 | 7.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext/compressedTexSubImage3D