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This page gives some basic details about the Raw Shadow render element and explains how it is used.

 


Overview

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The Raw Shadow Render Element stores information about cast shadows calculated from the lighting in the scene. It is a "reverse" image in the sense that white areas indicate shadows while black areas indicate no shadow. 

UI Path: ||out Network|| > V-Ray Render Elements node > V-Ray > Render Channel > V-Ray Color Channel (RE) > Type > Raw Shadow

 
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Attributes

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The parameters for this render element appear in the V-Ray RenderChannelColor render channels node.

Deep Output – Specifies whether to include this render element in deep images.

Color Mapping – When enabled, the Color Mapping options in the render settings are applied to the current render channel.

Consider For AA – When enabled, anti-aliasing is used where possible.

Filtering – Applies the image filter to this channel. Image filter settings are in the Image Sampler tab of the Sampler tab of the V-Ray Renderer node.

Denoise – Enables the render element's denoising, provided the V-Ray Denoiser render element is present.

Derive Raw Channels – Generates data in the raw channels by combining the respective color and the filter color channels.

VFB Color Corrections – Applies the post render color adjustments made from the VFB.

 
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Common Uses  

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The Raw Shadows Render Element is useful for changing the appearance of shadowed areas after rendering in a compositing or image editing application. In the example, the Raw Shadows were added (plus) to the VRayRawLighting Render Element. See how the render looks before and after compositing.

 


Before after
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Underlying Compositing Equation

 

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Raw Shadow x Diffuse = Shadow

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Notes

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Fancy Bullets
typecircle

  • Shadows can be both added and subtracted at a composite level without rerendering using the Shadow Render Elements.

  • Shadows can be color corrected using the Shadow Render Elements.

  • This render element is not supported with V-Ray GPU rendering.