blender-cli-rendering

Python scripts for generating scenes and rendering images using Blender from command-line interface.

Principles

• Able to run without display (thus, the renderer should be Cycles instead of EEVEE)
• Support the latest Blender release (currently 2.83)

Possible Usages

• Material to learn how to use Blender Python APIs.
• Visualization of 3D data with fancy rendering quality.
• Generation of synthetic training datasets for machine learning-based computer vision.

Scripts

01_cube.py

• Cycles renderer

02_suzanne.py

• Directional light
• Algorithmic object placement
• Subdivision surfaces
• TRACK_TO constraint to achieve camera's look-at behavior
• Depth of field
• Smooth shading

03_ibl.py

• Node-tree
• Image-based lighting using an HDR image

04_principled_bsdf.py

• Principled BSDF
• Denoising
• Empty object as a target

05_composition.py

• Composition nodes
• Node group

06_split_tone.py

• Split tone effect
• Checker board texture

07_texturing.py

• Image texture

08_animation.py

• Keyframing
• Motion blur

09_armature.py

• Skeletal animation
• Skinning

10_mocap.py

• Mesh creation from Python data
• BVH data import
• Texture tiling
• Camera following

11_mesh_visualization.py

• Wireframe
• Vertex colors
• Transparent background

12_cloth.py

• Cloth modifier
• Collision modifier
• Area light

13_matcap.py

• MatCap (a.k.a. Lit Sphere)
• Image filtering (e.g., sharpen)
• Simple RGB background
• Node frame

14_procedural_texturing.py

• Noise texture

License

Scripts in this repository use the Blender Python API, which is licensed under GNU General Public License (GPL). Thus, these scripts are considered as derivative works of a GPL-licensed work, so they are also licensed under GPL following the copyleft rule.