Some blender python functions for 3D graphics data rendering

Introduction

Some simple tools to load models and render the scene

support Blender 3.0+, prefer 4.0+

What can they do | Dependencies | Usage | 中文版使用简介

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Hey guys, I strongly recommend using BlenderProc and BlenderToolbox, they are easy to use, and there are a lot of scripts in the demo

作为课程助教的时候做了一份简单的blender入门指南，有兴趣的话欢迎下载来看看：

ppt与文件下载链接: https://pan.baidu.com/s/1vOHMwOzvhZpCtMbjGkI24g | 提取码: 6mfz

What can they do

Task	Example	Result
Set your models and light, then render.	demo.py
Rotate your scene, render animation.	animation.py
Render object with wireframe.	wireframe.py
Clean the overlap surface of model.	clean_double_faces()
Visulize the intersect edges of two objects.	show_intersection_lines()
Recalculate normals. (models in ./env_data/model/bad_mesh )	normal_demo.py
Convert image sequence into video.	img_to_video.py

Dependencies

If you want to render point cloud data (ply format), you need to install trimesh in blender, open a terminal and execute the following command:

1. go to the python folder of your blender:

2. install same package we need :

python.exe -m pip install trimesh

python.exe -m pip install bpycv

Usage

Before you run demo.py, please modify the ROOT_DIR at line 14 to your folder path, then run:

blender -b -P demo.py

Or you can open the demo.blend and modify the ROOT_DIR to run the script, then you can see the result in blender.

Wishlist

• copy scene addon!!!
• compose about shadow
• more curve
• volume render

Acknowledgements

Learn from

• bpycv
• point_cloud_render
• point_cloud_visualizer

and thanks to these blogs:

• create uv map
• get vertices