Volume rendering is generally a GPU-intensive process. In order to draw a beautiful cloud with a smaller drawing load, we will introduce the guidelines for adjusting the parameters that affect the drawing load. At the time of adjustment, display the FPS so that you can check the load status.

Physics Cloud Renderer optimization guidelines

  • Decrease Cloud Layer resolution
    • When the resolution is halved, the drawing load becomes ¼.
  • If you don’t need to display clouds in the layer, leave Profile unset
  • Lower Atmosphere resolution
  • Reduce Shaft Quality of Atmosphere
  • Reduce GodRay Quality in Atmosphere
  • Set Shaft to 0 if no shaft effect is required
  • Set GodRay to 0 if you don’t need a godray effect
  • Adaptive Sampling should be set as small as possible.
    • Adaptive Sampling renders a part of the drawing area in full resolution, so the processing load is heavy.

Stylized Cloud Renderer optimization guidelines

  • Lower Iteration value
  • The value of LightingQuality (when Surface/XRay) is loaded in the order of Iteration x LightingQuality, so try setting a preset in the range of 0-0.199.
  • Lowers ShadowQuality
  • The smaller the MaxDistance in the horizontal direction, the smaller the drawing area of ​​the cloud.
  • Increase the Optimize value as much as possible
  • If Octave is large or if the number of tiling is increased by setting Scale / Tiling, GPU stalls tend to occur during Texture Fetch, so Octave should not be raised too much and the number of tiling should be kept as small as possible.
  • Make Resolution as small as possible
    • If the Resolution parameter is set to x0.75, the drawing load will be ½.
    • If the Resolution parameter is set to x0.5, the drawing load will be ¼.