From polycam glb to Microsoft 3D Builder ply (this conversion process retains the color data) to CloudCompare subsample mesh to true ply to blender, rescale, apply scale, convert to new pointcloud type: Geo Nodes time, then shaders (attribute node to gamma 2.2 to bsdf color) then lighting and volumetrics (principled vol +and vol scatter node with noise in density and color ramp following) and extra traditional particle system.
Audio is text to music I told an AI manchild to make myself, text input was as follows: overwhelming russian classical electronic horror