Download Sponza Base Scene and Colorful Curtains.

Extract the files into ./assets/main_sponza/ and ./assets/PKG_A_Curtains/

No GI, just aiming lights where there should be light.

To optionally convert the textures to KTX2 use: cargo run -- --convert. You need kram in your path to do this. It will convert all the textures to BC7 KTX2 zstd 0 using available_parallelism() and update the gltf files to use the KTX2 textures. Or use compress feature with --compress arg to generate compressed textures with mipmaps at runtime. --cache will additionally cache the compressed textures. So to run with cached runtime compression: cargo run --release --features compress -- --compress --cache