Struct CompressedTextureDesc 

pub struct CompressedTextureDesc<'a> {
    pub width: u32,
    pub height: u32,
    pub format: TextureFormat,
    pub is_normal_map: bool,
    pub mip_levels: &'a [&'a [u8]],
}

Pre-compressed, pre-mipped texture data, uploaded to the GPU as-is.

The library does no encoding or decoding: compress and build the mip chain offline in your asset pipeline, then hand the block bytes here. format must be a block-compressed format (BC, ASTC, or ETC2) that the device supports (check with supports_texture_format). mip_levels holds one tightly block-packed byte slice per level, level 0 (full size) first; mip_levels.len() becomes the texture’s mip count.

Color space is carried by format (for example Bc7RgbaUnormSrgb for albedo versus Bc5RgUnorm for normals); is_normal_map only selects which internal bind-group slot the texture occupies.

Fields

width: u32

Width of mip level 0, in texels.

height: u32

Height of mip level 0, in texels.

format: TextureFormat

Block-compressed texture format.

is_normal_map: bool

Bind into the normal-map slot rather than the albedo slot.

mip_levels: &'a [&'a [u8]]

Block bytes per mip level, level 0 first.