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Questions tagged [astc]

Adaptive Scalable Texture Compression (ASTC) is a lossy block-based texture compression algorithm developed by Jørn Nystad et al. of ARM Ltd. and AMD.

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Which iOS devices don't support ASTC texture compression?

iPad 3 is definitely not. CPU decompression lags like hell, I want to know approximately how many user encounters this.
Geri Borbás
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GL_INVALID_VALUE on glCompressedTexSubImage2D with an ASTC 8x8 texture

I have been experiencing a strange problem with glCompressedTexSubImage2D on my Android phone (Adreno 530 GPU) with an ASTC 8x8 texture. My setup originally contained a PBO used to facilitate asynchronous texture uploading, but I have pared it down…
Robert Rouhani
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Encode ASTC on device (iOS)?

Is there any library able to encode image data to ASTC texture on demand? I am aware it is CPU intensive, but interested anyway.
Geri Borbás
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Is there an easy way to check whether an Android device supports ETC2 and ASTC?

Is there an easy way to check whether an Android device supports ETC2 and ASTC? By the way, I don't want to create an OpenGL context to get the extensions, that’s because I need to know the support features to request the right texture resources…
realxie
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ASTC for normal maps

I am trying to compress my normal map textures, so I am using ASTC 4x4. It works completely good for other textures (aka diffuse), but quality lost for normal maps were too big. Is there a way to improve ASTCs quality directly for Normal Maps ? I…
Amin Madani
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Remove KTX container from ASTC texture

Is there an easy way to remove the container from my ASTC 8x8 texture I have in a KTX file. I want to use ARM's astc-encoder tool to go from .astc -> .png but I only have the KTX file which is in ASTC 8x8 format
FrickeFresh
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How do I decompress a .astc file with an additional .ccz extension? How do I view .ita files?

First, full disclosure: I'm very new to coding and very new to file dissecting, but its something I anticipate studying in school very soon, so please pardon my ignorance in future interactions. As a project I've decided to dissect the files of a…
Ruby
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