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KeyShot Studio

Compositing Examples with Render Passes

Render Passes can be used in various ways during post-processing. Below are two basic examples of compositing workflows with Render Passes, using Photoshop to explain the concepts.

Last updated 3 August 2026

Render Passes can be used in various ways during post-processing. Below are two basic examples of compositing workflows with Render Passes, using Photoshop to explain the concepts.

Reconstruct Beauty Image from Passes

Passes can be used to reconstruct the rendered still image, commonly called the “beauty pass” in compositing workflows. Adding together the Lighting, Global Illumination, Caustics, Reflection and Refraction Passes allow to achieve the beauty image.

In Photoshop, adding is done by setting each pass layer’s blending mode to “Linear Dodge (Add)”.

The pass layers with blending mode “Linear Dodge (Add)” in Photoshop
The pass layers with blending mode “Linear Dodge (Add)” in Photoshop
BeautyPass
On the left you see the rendered beauty pass for reference, on the right is the composited result.
On the left you see the rendered beauty pass for reference, on the right is the composited result.

Adjust Beauty Image with Passes

The same passes from the workflow above can also be used to strengthen or weaken their effect on the beauty image. In Photoshop, strengthening the effect of a pass is done by setting the pass layer’s blending mode to “Linear Dodge (Add)”. Weakening the effect is done by setting the blending mode to “Subtract”. In both cases, the beauty image should be the base layer, positioned below the passes.

The example below shows the effect of adding the Reflection pass to the beauty image.

BeautyPass
On the left you see the rendered image (beauty pass) on the right is composited result, of the beauty pass + reflection.
On the left you see the rendered image (beauty pass) on the right is composited result, of the beauty pass + reflection.

The example below shows the effect of subtracting the Global Illumination pass from the beauty image.

BeautyPass
On the left you see the rendered image, on the right is the composited result of the beauty pass + global illumination.
On the left you see the rendered image, on the right is the composited result of the beauty pass + global illumination.

AMD Requirements

GPU raytracing in KeyShot Studio supports AMD GPUs built on RDNA3 microarchitecture or later, found in the Radeon RX 7600 or above.

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Animation Output

3. Video Output Enable this to generate a video of the animation.

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Apple GPU Requirements (BETA)

GPU raytracing in KeyShot Studio supports Apple Silicon Mac with M1 chips or newer and MacOS Sequoia 15 or later.

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CMF

The CMF (Color, Material, Finish) output option enables you to output a document, containing an image with callouts and a table with Material information.

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Configurator Output

The Configurator option in the Render dialog offers following output options, based on the configuration set up with the Configurator Wizard:

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