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Custom AOVs

Table Of Contents

• Custom AOVs
• Introduction
• Creating Custom AOVs
• Custom AOV Options
• Store Color To AOV
• Store Scalar To AOV
• Store Integer To AOV

Introduction

When the Integrated AOVs aren't enough and you need to output specific types of render data alongside your beauty passes you can turn to Redshift's Custom AOV.

A Custom AOV lets you do things like override every object in the scene with a texture shader for quick mattes, a custom ambient occlusion AOV, or pass through information on a per-material basis like specific texture mattes by making use of a Store Color/Scalar/Integer to AOV node.

Custom AOV Options

Custom AOVs have most of the same options as any other AOV and you can read about these shared options here. The one key difference is the Default Shader option covered below.

Denoise

Controls if the Custom AOV has denoising applied to it.

Default Shader

Custom AO	Wireframe	Triplanar wood texture

A Custom AOV's default shader option can be used to quickly create a custom override of every object in the scene. Here you can plug in any texture or utility shader to output any kind of information you'd like. Above are some examples of the AOV example scene overridden with a custom ambient occlusion shader, a wireframe shader, and even a completely random wood texture map that is using a triplanar node to apply this to the entire scene.

Apply Color Processing

When enabled the following color adjustments are baked into the AOV:

• OCIO View Transform
• Camera Tone mapping
• Gamma adjustments

Secondary Ray Visibility

Controls if the Custom AOV is visible in secondary rays effects like reflections and refractions.

For example, this can be enabled if you may want a Custom AOV to be visible through transmissive objects.

Store Color To AOV

Beauty Input

This is where you connect your Redshift material to pass through the Store Color To AOV node.

AOV Inputs

This section is where you connect your texture / utility shader or set the color to be output to the specified Custom AOV. 

AOV Input

Each AOV Input serves as another spot to output custom color data.

AOV Name / Custom Name

This section determines which Custom AOV is used as the output for the related AOV Input.

Store Color To AOV Examples

Custom Blend: Additive Example	Custom Matte

The Custom Blend example demonstrates the additive nature of the Store Color To AOV node and how two AOV Inputs can be output to the same Custom AOV. The Custom Blend AOV has a black and green fresnel plugged into the Custom AOV's default shader slot, applying this green fresnel to every object in the scene. The drinking glass shader passes through a Store Color To AOV with two different AOV Inputs that output to the same Custom AOV as depicted below.

• In the one AOV Input slot is a simple flat red color, this added with the green fresnel results in the orange color on the perpendicular edges of the drinking glass.
• In the other AOV Input slot is a black and blue ambient occlusion shader, this added with the green fresnel results in the magenta color around the two lemons and the table near the glass.

The Custom Matte example is a simple one, making use of different flat colors for each material in the scene to create a custom multi-colored clown matte pass that can be used for keying and isolating different parts of the render.

Store Scalar To AOV

A Store Scalar To AOV node is used to output scalar data to a Custom AOV for specific materials already applied to objects in a scene.

Beauty Input

This is where you connect your Redshift material to pass through the Store Scalar To AOV node.

AOV Inputs

This section is where you connect your texture / utility shader or set the color to be output to the specified Custom AOV.

AOV Input

Each AOV Input serves as another spot to output custom scalar data.

AOV Name / Custom Name

This section determines which Custom AOV is used as the output for the related AOV Input.

Store Scalar To AOV Example

Lemon curvature

The Lemon Curvature example above demonstrates a curvature node out to a Store Scalar To AOV node's AOV Input connected to the lemon's beauty shader. 

Store Integer To AOV

A Store Integer To AOV node is used to output integer data to a Custom AOV for specific materials already applied to objects in a scene. This is similar to an Object ID pass where each object has a different integer value applied to it. With a Store Integer To AOV node you can supply each material with your own custom Integer. 

Beauty Input

This is where you connect your Redshift material to pass through the Store Integer To AOV node.

AOV Inputs

This section is where you connect to or set the integer value to be output to the specified Custom AOV.

AOV Input

Each AOV Input serves as another spot to output custom integer data.

AOV Name / Custom Name

This section determines which Custom AOV is used as the output for the related AOV Input.