WebGL2RenderingContext.texStorage2D() - Web APIs 编辑

The WebGL2RenderingContext.texStorage2D() method of the WebGL API specifies all levels of two-dimensional texture storage.

Syntax

void gl.texStorage2D(target, levels, internalformat, width, height);

Parameters

target

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

• gl.TEXTURE_2D: A two-dimensional texture.
• gl.TEXTURE_CUBE_MAP: A cube-mapped texture.

levels

A GLint specifying the number of texture levels.

internalformat

A GLenum specifying the texture store format. Possible values:

• gl.R8
• gl.R16F
• gl.R32F
• gl.R8UI
• gl.RG8
• gl.RG16F
• gl.RG32F
• gl.RG8UI
• gl.RGB8
• gl.SRGB8
• gl.RGB565
• gl.R11F_G11F_B10F
• gl.RGB9_E5
• gl.RGB16F
• gl.RGB32F
• gl.RGB8UI
• gl.RGBA8
• gl.SRGB8_APLHA8
• gl.RGB5_A1
• gl.RGBA4
• gl.RGBA16F
• gl.RGBA32F
• gl.RGBA8UI

Unlike OpenGL 3.0, WebGL 2 doesn't support the following ETC2 and EAC compressed texture formats (see section 5.37 in the WebGL 2 spec). You might be able to enable them via the WEBGL_compressed_texture_etc extension, though.

• 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

width

A GLsizei specifying the width of the texture.

height

A GLsizei specifying the height of the texture.

Return value

None.

Examples

gl.texStorage2D(gl.TEXTURE_2D, 1, gl.RGB8, 256, 256);

Specifications

Browser compatibility

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The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

See also

• WebGL2RenderingContext.texStorage3D()
• WEBGL_compressed_texture_etc