Editor View Modes

View modes (editor or game) calls ApplyViewMode afterwards. See also EViewModeIndex.

Lighting Only

• LightingOnlyOverride flag
• VMI_LightingOnly

If true FEditorViewportClient::SetupViewForRendering will set DiffuseOverrideParameter and SpecularOverrideParameter on the FSceneView. It will use UEngine LightingOnlyBrightness variable. Which is set using the LightingOnlyBrightness value in the ini file (default is R=0.3,G=0.3,B=0.3,A=1.0).

Those “override” variables are used deep down in render, found traces in SetupCommonViewUniformBufferParameters and VIEW_UNIFORM_BUFFER_MEMBER_EX in VIEW_UNIFORM_BUFFER_MEMBER_TABLE.

This is used in FViewUniformShaderParameters.