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The following is the base formula for reconstructing the Beauty pass. Some Render Elements can be excluded if the scene does not utilize them. Click the image to see the full-size version and zoom in to view all the render elements involved.

Direct Lighting + GI +   Reflection + Refraction + Specular + SSS + Self Illumination +   Caustics (RE) +   Atmosphere +  Background = RGB_Color (Beauty)

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(Diffuse x (Raw Direct Lighting +   Raw GI)) + (Raw Reflection x   Reflection Filter) + (Raw Refraction x   Refraction Filter) + Specular + V-Ray SSS + Self Illumination + Caustics Channel + Atmosphere + Background = RGB_Color (Beauty)

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Fancy Bullets
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  • There are two options for how Motion blur and Depth of Field are handled in the back-to-beauty composite. If Depth of Field and/or Motion blur are enabled in the V-Ray Physical Camera, these effects will already be baked into all of the render elements. In this scenario, using the filter render elements in the advanced back-to-beauty composite can offer finer control of some render elements. Alternatively, many compositing and photo editing packages can add the effects post-rendering using specific tools that utilize   V-Ray RenderChannelVelocity for motion blur and V-Ray RenderChannelZDepth for depth of field, with some limitations.

 

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