N64 CITextureEditor TMF Format

Japanese

1. TMF

   This is the file that holds the texture image. There are 4bit index files as well as 8bit index files. Each is a binary file with the following configuration:

   Header area (64byte)	u32 tex_img_tag u32 tex_img_width u32 tex_img_height u32 tex_pixel_depth (48byte reserved area)
   Image area	u32 pixel_index_array(0) u32 pixel_index_array(1) : :

2. Explanation

   • [u32 tex_img_tag]

     For convenience, this ID is used to identify whether the file is a TMF file.

     For 4bitCI TAG_TEX_IMG_4_CI = 0x00120200
     For 8bitCI TAG_TEX_IMG_8_CI = 0x00120300
     

   • [u32 tex_img_width]

     Describes the number of pixels in a horizontal line of the texture image.

   • [u32 tex_img_height]

     Describes the number of vertical lines in the texture image.

   • [u32 tex_pixel_depth]

     Describes the number of bits used per pixel.

     For 4bitCI TEX_PIXEL_DEPTH_4_CI = 0x00000004
     For 8bitCI TEX_PIXEL_DEPTH_8_CI = 0x00000008
     

   • [u32 pixel_index_array]

     The area describing which color in the palette to use for each pixel.

     The pixel data is basically described in order from the bottom-left of the image data.

     For a 4bitCI, 8 pixels at a time are stored in pixel_index_array in order from the bottom-left of the image data. u32, like NIFF, stores data using the big endian method.

     For an 8bitCI, 4 pixels at a time are stored in pixel_index_array in order from the bottom-left of the image data.

     In either case, if the last data does not fill 32bits, the remainder is filled with 0x0.

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