Author Topic: is there such a thing as single channel texture in vram?  (Read 125 times)

Offline MichaelJPCT

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is there such a thing as single channel texture in vram?
« on: January 12, 2019, 07:57:21 am »
i think all textures have 3 or 4 color channels. but sometimes a texture has no color , only greyscale info is needed.
if the texture in vram is stored as single channel, then it occupies 1/4 of memory. isn't it great?

another question, can RTT texture be ETC compressed in vram?

Offline EgonOlsen

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Re: is there such a thing as single channel texture in vram?
« Reply #1 on: January 15, 2019, 11:26:51 am »
Yes, in theory you could do that but it's not supported in jPCT-AE and, at least some years ago, it wasn't well supported on devices either.

A RTT texture can't be compressed, I'm afraid.