How to Decimate and Bake Atlas in Blender

This guide is part of the RapidPipeline 3D Plugin Actions Knowledge Base. It shows how to Decimate and Bake Atlas on Blender; if you'd like to know more about it, please check out the following links:

• Learn more about the Decimate and Bake Atlas
• Learn more about Blender

1. In the 3D viewport open the sidebar (default hotkey n) and choose RapidPipeline.
2. Inside the add-on window, choose the action Decimate and Bake Atlas.
3. Set the Face Target to 50000, which will reduce the mesh to less than 50k triangles.
4. Press the Run button. :::tip Decimation actions by default use a deviation target. When the Deviation Percentage is more than zero, the Face Target will act as an upper limit for the face count, instead of acting as a forced target. Increasing the Deviation Percentage will allow the optimizer to go lower when possible. However if you simply want to reach an exact face target, the Deviation Percentage should be set to 0. :::

• Use the Blender add-on
• Run "Decimate and Bake Atlas" action
• Examine the results

This tutorial shows how use the RapidPipeline Processor add-on in Blender to simplify the geometry of a model with decimation and bake the material and texture information into a new UV atlas.

The asset used in this tutorial is the 'Belz's RTFKT Challenge' (https://skfb.ly/6VnPP) by Belzar Sirus is licensed under Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/).

The input model with 145k triangles

The shoe after optimization with 50k triangles

The textures before and after optimization

The action Decimate and Bake Atlas opened in the add-on

To see the results with proper shading and the effect of the texture baking, set the Viewport Shading Method to Material Preview.

Viewport Shading Method set to "Material Preview"

To fully check the mesh optimization, open the Overlays menu and enable Geometry, so you can see a wireframe overlay on your model.

Viewport Overlays set to "Geometry"

Input and output with Geometry overlays

To get started with 3D data conversion and optimization today, sign up for a free account!

If you have any questions, feel free to chat with our human team.