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This page gives information on the VRayLightMix render element.<= /p>
The Light Mix render element provi= des adjustment control to the lights in the scene from inside the V-Ray Frame Buffer. When a Light Mix render element has been= added before rendering, the intensity and color of the lights and light-em= itting materials can be changed directly from the VFB during and after rend= ering; lights can be enabled or disabled on the go without the need to re-r= ender your final output or navigate to individual lights parameters during = IPR. Furthermore, modifications made in the LightMix can be transferred bac= k to the actual lights in the scene with a single click. This feature can h= andle individual lights as easily as light groups or custom selections.
Read more about LightMix on the Chaos blog.
Instanced lights=
=E2=80=93 If there are instanced lights in the scene, each group =
has its separate channel. All=
unique lights in the scene are stored in their individual render channels;=
Individual lights =E2=80=93 The lighting information of each light is stored in a separate=
channel;
Grouped li=
ghts =E2=80=93 The lighting&=
nbsp;information of each group of lights is placed in a separate channel. A=
ll lights that are not attached to any group in the scene are sto=
red in their individual render channels;
Layers =E2=80=
=93 Lighting information of all layers is stored in a separate channel.
Manual light selects =E2=80=93 Render channels are created based on the existing=
Light Select render elements in the scene. Lights that are not specified t=
here are collected in a single render channel called Rest. Use this mode wh=
en you want to include a Light Se=
lect render element to your render, too.
Each grouping mode automatically creates = Environment and Self Illumination render elements, and Light Mixing adds th= em as groups. The information from the light-emitting materials is stored i= n the Self Illumination channel, while the Environment info is stored in th= e Environment channel.
Separate Emissive Material =E2=80=93 When enabled, illu= minating materials are also included in the VFB LightMix controls together = with scene lights. The materials that V-Ray respects are: VRayMtl with non-= black self-illumination and VRayLightMtl.
3. In the new VFB > Layers, set the Source = ;to LightMix.
4. Now, you can tweak your lights!
Be careful when renaming lights. If multi= ple lights have the same name, the Light Mix render element overwrites any = saved outcomes.
When the Source is set to LightMix, you can enable/disa= ble lights and adjust their intensity and color during and after the render= . The modifications can be saved as light mix presets and reused. VRayLight= Mix automatically creates the Environment and Self Illumination render elem= ents.
Reset =E2=80=93 Resets all changes made to their d= efault values.
Save =E2=80=93 Saves the changes as a light m= ix preset.
Load =E2=80=93 Loads a light mix preset.
To scene =E2=80=93 Applies the current VRayLightMi= x changes to the scene. This sends all changes to colors/intensities back t= o the scene lights. This option is only available after the render has stop= ped.
To Composite =E2=80=93 Sends the Light Selects fro= m LightMix to Composite for additional post adjustments.
Recent =E2=80=93 Shows a list of recent light= mix presets.
Checkbox =E2=80=93 Enables/Disables the selected l= ight.
Multiplier =E2=80=93 Specifies an intensity multip= lier.
Color Slot =E2=80=93 Specifies a color for th= e selected light.