The VRayLightMix render element provides adjustment control to the lights in the scene from inside theV-Ray Frame Buffer(VFB2). When a VRayLightMix render element has been added before rendering, the intensity and color of the lights and light emitting materials can be changed directly from the VFB during and after rendering; lights and seldself-illuminating materials can be enabled or disabled on the go, without the need of re-rendering your final output, or navigating to individual lights parameters during IPR. Furthermore, modifications made in the LightMix can be transferred back to the actual lights and materials in the scene with a single click. This feature can handle individual lights and emitting materials as easily as light groups, layers or custom selections.
Find out more about how VRayLightMix works here: Chaos Blog.
VRayLightMix requires Consistent lighting elements and internally switches render elements calculation to this mode even if the option (placed in theGlobal Switchestab) is disabled in the UI.
VRayLightMix does not work with the Irradiance Map GI engine.
With With V-Ray 6, update 1, instanced lights instanced by VRayInstancer , / Forest Pack , / Rail Clone, etc. must be are part of the Light Select render element RE of the respective source light. Multiple lights used with one instancer node must have separate Light Select entries in VRayLightMix.
