---
title: "RazorBack Rendering"
canonical: "https://rmanwiki-27.pixar.com/space/RU/657228237/RazorBack%20Rendering"
format: markdown
---
### Rendering

When setting up render layers and AOVs, it's essential to output one Light Path Expression (LPE) per main light. Alternatively, lights with similar functions can be grouped together, such as rim lights. 

However, excessive grouping may limit flexibility in compositing. 

Additionally, separating diffusers from speculars enables fine-tuning and correction of any discrepancies between shading and lighting.

In an ideal scenario where everything is perfectly calibrated, there may be no need to separate AOVs in this manner. However, in cases where a light's intensity is too strong, leading to an exaggerated specular effect, separating AOVs becomes invaluable. 

This allows for targeted adjustments to mitigate issues and achieve desired visual outcomes during post-production.


![rendering_tips.jpg](media://297f4658-455e-47c6-8022-da861636a68a)


To streamline the denoising process and facilitate mask creation, it's advisable to separate the beauty pass from the Light Path Expressions (LPEs) and utilities. 

This separation makes it easier to denoise each AOV individually. Additionally, extracting a cryptomatte by material or object enables rapid mask creation, even if assets are in motion, as the masks will remain consistent.

By separating the beauty pass from LPEs and utilities, denoising becomes more efficient, as each component can be processed independently. 

Moreover, using Cryptomatte for mask creation offers unparalleled flexibility, enabling precise control over elements within the scene, regardless of asset movement. This approach enhances the overall post-production workflow, enabling smoother, more precise final renders.

![cryptomatte.jpg](media://2ea697df-708d-4438-b3f7-c9db77686cb1)