MustangMike opened this issue on Jan 29, 2015 ยท 12 posts
bagginsbill posted Fri, 30 January 2015 at 6:55 AM
Further calculating - how much memory do we need to use this texture?
Texture widths are rounded up to the nearest power of 2 in order to support mipmapping. (Many implementations round up both sides, but technically only one side needs to be rounded up.)
So the texture, in app, would be 16384 * 13000 pixels.
We have three of maps, so 16384 * 13000 * 3 pixels.
For each pixel, we need six bytes: three bytes for RGB, and three bytes for bump map (because Poser doesn't know a bump map is monochrome.)
So now we're at 16384 * 13000 * 3 * 6.
Mipmapping adds 33% more to that.
16384 * 13000 * 3 * 6 * 4/3 = 5.11 GB
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