Optimize skybox loading

w23 / xash3d-fwgs

Vulkan Ray Tracing fork of Xash3D FWGS engine. Intended to be merged into master at some point in the future.

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Closed w23 closed 5 months ago

w23 commented 5 months ago

With the new hi-res skyboxes it became extremely slow. Feels like roughly more than half of map loading time.

What could we do:

determine whether the map even has SURF_SKY. If it doesn't then skybox can be completely omitted.
support loading packed KTX2 cubemaps directly
cache: do not unload then reload the same skybox

0x4E69676874466F78 commented 5 months ago

determine whether the map even has SURF_SKY. If it doesn't then skybox can be completely omitted.

Это надо делать заодно с #579

support loading packed KTX2 cubemaps directly

А это #677 пункт про glTF-IBL-Sampler