this input node cannibalises quakespasm to read quake input geometry and textures.
the data is sent to vulkan ray tracing kernels.
you can try vkdt examples/quake.cfg to test it. requires a bluenoise input texture, see below.
also it assumes that you have the original game data installed in /usr/share/games/quake/.
this module is optional, you need to have compiled with VKDT_USE_QUAKE=1, see config.mk.defaults.
output the rendered frame. this is not a source because it doesn't require cpu copy (rendered on gpu directly).blue blue noise input textures. see this github issue for an example file.aov the arbitrary output variables channel. currently writes diffuse albedo.cam custom camera parameters passed as uniforms. these are usually ignored, but you can still grab to play the game.spp the number of samples per pixel. lower this to gain speed.