Mark Callow

A PR would be great. The PR can access the resampler in the BasisU code in a similar way to how toktx does it. The genmipmap function should give KTX_INVALID_OPERATION...

> Currently, the perceptual flag is tied to the source transfer function which is a bit misleading. What do you want to happen? sRGB is perceptual. Linear is not. So...

`--linear`, now `--assign_oetf linear` overrides whatever information the input image provides about its oetf. It is the information from the input image, possibly overridden, that controls whether sRGB decoding and...

PR #534 adds a --astc_perceptual flag for the astc encoder. Here's the doc: > The codec should optimize for perceptual error, instead of direct > RMS error. This aims to...

Ping @lexaknyazev. Please answer the questions in my comment and let us know if you have any thoughts about what @solidpixel wrote.

I prefer an extra library too.

This was implemented a long time ago.

> why is the proposed limit 16,834? Because that is the limit on the majority of GPUs atm. The error is intended to be a hard warning that hey you...

There is nothing to be done in the current KTX-Software as far as I can see. This useful material needs to go in a document somewhere. Where would be appropriate?...

When you create the VulkanDeviceInfo struct (with`ktxVulkanDeviceInfo_{Create,Construct}`), that is used to pass device info to `ktxVkUploadEx`, you can pass a pointer to a `VkAllocationCallbacks` struct. This will be used by...