![]() ![]() ![]() Caustics are not included in the calculation of VRayLightSelect Render Element. There should be no self-illuminating materials, because they can't be added as contributing light sources in the VRayLightSelect render element. This is only true when the environment is black and no environment override is used. When the VRayLightSelect render element is set to Fullmode, the sum of all lights' output composes the Beauty pass. When the VRayLightSelect render element is set to Direct illumination mode, the sum of all lights' output replaces the sum of VRayLighting and VRaySpecular render elements in the Back to Beauty composite. When the VRayLightSelect render element is set to Direct specularmode, the sum of all lights' output composes the VRaySpecular render element. This is only true when GI is disabled and there are no dome lights in use. When the VRayLightSelect render element is set to Direct rawmode, the sum of all lights' output composes the VRayRawLighting render element. It must be noted that VRayAlSurfaceMtl with sss_mix value other than the default 0, doesn't fit this equation. When the VRayLightSelect render element is set to Direct diffusemode, the sum of all lights' output composes the VRayLighting render element. This happens with either specifying each light in a separate element, or combining them in a practical manner in several elements and avoiding repetitions. For the above equation to work correctly, all enabled lights need to be accounted exactly once in the VRayLightSelect render elements. The diagram above illustrates that the sum of all VRayLightSelect Render Element set to Direct diffusemode represents the VRayLighting render element which can be used in the Back to Beauty composite. The following diagram shows the compositing formula to recreate all the scene Lighting from light sources when each light in the scene is accounted for in exactly one VRayLightSelect render element in Direct diffuse mode. Presets – Provides a list of presets for light path expressions. See the Light Path Expression page for more information. Light path expression – Allows capturing custom light transport paths with regular expressions. Subsurface – Lights output only the information calculated from Subsurface Scattering materials. Indirect specular – Lights output indirect scene lighting that originated from the specular contribution of the specified lights. Indirect diffuse – Lights output only indirect scene lighting that originated from the diffuse contribution of the specified lights. Indirect – Lights output only the indirect scene lighting. ![]() ![]() Full – Lights provide full output for all information available in the scene such as GI, SSS, reflection, refraction, etc. Direct specular – Lights output only their specular contribution and contain no diffuse information. Direct diffuse – Lights output only their diffuse contribution and contain no specular information. Direct raw – Lighting within the VRayLightSelect element behaves as a raw render element. Mode – Sets what type of lighting contribution is generated in the element as follows:ĭirect illumination – Contains diffuse and specular information from the specified lights. Multiplier – Sets the overall intensity of the render element, where 1.0 is the standard multiplier.ĭenoise – Specifies whether to denoise this render element if VRayDenoiser render element is present. VrayVFB – When enabled, the render element appears in the V-Ray Virtual Frame Buffer.ĭeep output – Specifies whether to include this render element in deep images.Ĭolor mapping – Applies the color mapping options specified in the Color mapping rollout (Render Setup window > V-Ray tab) to this render element. Layers – Only lights from selected layers (and their sub-layers) are considered. Lights – Directly select lights from the scene. Select by – Specifies how to select items in the list. Exclude – Excludes the listed lights in the render channel. Include – Includes the listed lights in the render channel. Type – Specifies how the list of lights works from the following: Remove – Removes a light from the VRayLightSelect Render Element. Lights – A list of lights included in the VRayLightSelect Render Element.Īdd – Adds a light to the VRayLightSelect Render Element. ![]()
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