Select your engine:


Our goal is to have as much data publicly available to see as possible. If something is not working, you should know what isn’t and why.

To show the trueSKY debugging overlays, assign the Render Target Texture TrueSkyOverlayRT (under TrueSkyPlugin/Overlay content) to the Overlay RT slot in the trueSKY Sequence Actor. The RT texture is then used with the PostProcessVolume: under Rendering Features, add a Post Process Material, and set it to the TrueSkyOverlay material reference.

The overlays can then be set in Windows->Overlays and then select the overlays you want to show.

Celestial Display

Shows the current position and path of the Sun and Moon. The circles indicate the positions between the current and next keyframe.

This image shows an example of a default celestical display and an example where the Sun’s position has been altered


Use profiling to aid performance measuring. This is a good way to determine what aspects of trueSKY are the most performmance heavy.

Atmospheric Tables

Cube Maps

Helpful to see what your clouds are doing. Will cycle through the different Mips.

Water Texture

Flow Rays



Rain Overlay

3D cloud Textures