search

BinomialLLC / basis_universal

Basis Universal GPU Texture Codec
Apache License 2.0
2.71k stars 267 forks source link

Supports BC6H and BC6H_SF compression formats #310

Open native-engine opened 2 years ago

native-engine commented 2 years ago

Have you thought about adding BC6H and BC6H_SF compression formats for HDR textures and normal maps?

richgel999 commented 2 years ago

Yes, long term. Right now there's not been much demand.

native-engine commented 2 years ago

Have you thought about making an SDK to use in the toolkit? I have my own graphics container and I'm facing the choice of using Basis Universal, but I need BC6H (SF for normal maps) and (UF for HDR maps) formats, or writing computational shaders to compress all the necessary formats to give up the NVTT SDK. Here is an example of a rudimentary game object editor.

Leadwerks commented 2 years ago

Yes, long term. Right now there's not been much demand.

I was just looking into this, for the purpose of storing HDR skyboxes (in KTX2 files) with this: https://github.com/KhronosGroup/glTF-IBL-Sampler

chaoticbob commented 1 year ago

Found my way here after some searching for BC6 support in KTX2. Would be very useful to have something that transcode to some flavor of BC6 and some flavor of float16 on mobile. Recently started using KTX2 to target LDR images on both desktop and mobile from a single target and it's been pretty awesome so far. HDR support would greatly reduce (if not remove entirely) the need for other image formats in most of my cases. Would also reduce the headache with asset management :)

Davidster commented 1 year ago

+1 for this feature!

Hello! Thanks for the great library. I'm currently writing a skybox preprocessor for my engine and it would be amazing if I could save my HDR env maps in a compressed format with basis_universal like I do for the rest of my textures

NikolayKanchevski commented 8 months ago

Would too definitely like to be able to transcode BC6! Great work on the library, by the way :)

fire commented 8 months ago

I believe binomial is working on a 16 bit png that can encode hdr.

https://richg42.blogspot.com/2023/12/announcing-cpng-compatible-network.html