Simulated in Houdini, a high quality optimized 300 frame seamless looping steam VDB (converted to a Sparse Volume Texture in Unreal).
Small scale steam vdb loop. Add to any hot drink or food to bring life and movement to your scene.
Scale the volume to fit your prop and scene.
Product Help Documentation: https://docs.google.com/document/d/e/2PACX-1vRvohEOLPTJRWUea9-pyRpH7c3CSqC_jzmOJxbj8eu2YfgVyE2Ui1pYrxrlwPn5wtpxvxvBtsz4U7Ys/pub
Demo Video: https://youtu.be/S1tmMuYJPyQ
300 Frames of simulation with seamless looping
Optimized 8bit unorm density data
2 LOD
High res cache: 157 mb
Lower res LOD1: 29 mb
Material Instance provided with density and emission mults for lighting and scene adjustment.
Example coffee cup static mesh included with 2 tone material.
Cinematic Rendering
For Cinematic Rendering, on the Heterogeneous Actors turn "Issue Blocking Requests" to on, and Under Lighting change "Lighting Downsample Factor" to 1.
and use:
r.HeterogeneousVolumes.OrthoGrid 1
r.HeterogeneousVolumes.OrthoGrid.MaxBottomLevelMemoryInMegabytes 512 (default 128)
r.HeterogeneousVolumes.OrthoGrid.ShadingRate 1 (default 4)
Path Tracer
To render heterogeneous volumes with the path tracer, enable the following:
Project Settings
Set the Default RHI to DirectX 12.
Enable Support Hardware Ray Tracing.
Enable Path Tracing
and use the console variable:
r.PathTracing.HeterogeneousVolumes 1