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[bubu]

Hi,

I'm currently using an image in order to take advantage of the GPU caching system.

My algorithm iterates the image from top to bottom for each thread ( but skipping some random texels differently for each thread ).

I was wondering if I could improve the caching efficiency storing the image using Morton codes/Z-order but... how is the texture swizzled/tiled internally in VRAM?

thx.

[sh2]

There is no general answer because texture layout is hardware dependent.

Here you could find texture format used by old AMD/ATI chips:

http://www.x.org/docs/AMD/R5xx_Acceleration_v1.5.pdf