V-Ray Domelight Texture Viewer can be used to preview Active Dome Light texture and Background Environment

Active Dome Light

Texture path – – here an image texture path shown.

Exposure – exposure level of texture.

Texture  Preview Size – Here you’ll find entries from 64×64 (16 KB) to 4096×4096 (64 MB). The value controls the internal resolution of the map — the higher you set this value, the more detailed the map will be in the Viewport. The value has no effect on the rendered result.Proceed with caution when increasing the Map Preview Size. Higher settings require more RAM and increase the file size of the CINEMA 4D scene. OpenGL is also affected because the map previews must be loaded into the graphics card’s memory.

Background Environment

Texture path – here an image texture path shown.

Exposure – exposure level of texture.

Texture  Preview Size – Here you’ll find entries from 64×64 (16 KB) to 4096×4096 (64 MB). The value controls the internal resolution of the map — the higher you set this value, the more detailed the map will be in the Viewport. The value has no effect on the rendered result.Proceed with caution when increasing the Map Preview Size. Higher settings require more RAM and increase the file size of the CINEMA 4D scene. OpenGL is also affected because the map previews must be loaded into the graphics card’s memory.