Type alias TextureDataType

TextureDataType: "UNSIGNED_BYTE" | "UNSIGNED_SHORT_5_6_5" | "UNSIGNED_SHORT_4_4_4_4" | "UNSIGNED_SHORT_5_5_5_1" | "UNSIGNED_SHORT" | "UNSIGNED_INT" | "UNSIGNED_INT_24_8_WEBGL" | "FLOAT" | "HALF_FLOAT_OES" | "BYTE" | "UNSIGNED_SHORT" | "SHORT" | "UNSIGNED_INT" | "INT" | "HALF_FLOAT" | "FLOAT" | "UNSIGNED_INT_2_10_10_10_REV" | "UNSIGNED_INT_10F_11F_11F_REV" | "UNSIGNED_INT_5_9_9_9_REV" | "UNSIGNED_INT_24_8" | "FLOAT_32_UNSIGNED_INT_24_8_REV"

纹理数据类型

A GLenum specifying the data type of the texel data. Possible values:

gl.UNSIGNED_BYTE: 8 bits per channel for gl.RGBA
gl.UNSIGNED_SHORT_5_6_5: 5 red bits, 6 green bits, 5 blue bits.
gl.UNSIGNED_SHORT_4_4_4_4: 4 red bits, 4 green bits, 4 blue bits, 4 alpha bits.
gl.UNSIGNED_SHORT_5_5_5_1: 5 red bits, 5 green bits, 5 blue bits, 1 alpha bit.

When using the WEBGL_depth_texture extension:

gl.UNSIGNED_SHORT
gl.UNSIGNED_INT
ext.UNSIGNED_INT_24_8_WEBGL (constant provided by the extension)

When using the OES_texture_float extension:

gl.FLOAT

When using the OES_texture_half_float extension:

ext.HALF_FLOAT_OES (constant provided by the extension)

When using a WebGL 2 context, the following values are available additionally:

gl.BYTE
gl.UNSIGNED_SHORT
gl.SHORT
gl.UNSIGNED_INT
gl.INT
gl.HALF_FLOAT
gl.FLOAT
gl.UNSIGNED_INT_2_10_10_10_REV
gl.UNSIGNED_INT_10F_11F_11F_REV
gl.UNSIGNED_INT_5_9_9_9_REV
gl.UNSIGNED_INT_24_8
gl.FLOAT_32_UNSIGNED_INT_24_8_REV (pixels must be null)

See

https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/texImage2D

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