blender_decimate_modifier

Decimate modifier script that decimates models in a directory and overwrites them after decimating to the given ratio.

Steps to decimate models

Note: Currently tested only on .dae models and using Collapse decimation type on bpy 3.6

Install python >= 3.10
Create a virtual environment (required only if you have multiple python version)

python3.10 -m venv blender_ws
Source the venv

cd blender_ws

source ./bin/activate
Create directories scripts, wheels and download bpy 3.6 and place it in the wheels directory

mkdir wheels
Then install the wheel in venv

cd wheels

pip install bpy-3.6.0-cp310-cp310-manylinux_2_28_x86_64.whl

Once you've completed the installation, place the decimate modifier script in the scripts directory.

Change the below mentioned variables according to your needs

decimate_ratio, min_number_of_faces, path_to_model_directory

decimate_ratio - The ratio in which the model must be decimated.

min_number_of_faces - The minimum number of faces a model should have if it's to be decimated (just to preserve the model's shape)

path_to_model_directory - The path to the directory containing the .dae models.

The scripts will search for all the .dae files in the given directory
Caution: The script overwrites on the same path after decimating the model so if you need your original models make sure you have a copy of it.

Once above steps are completed go the the scripts directory and execute the following command.

blender -b -P decimate_models.py

Once completed your models should be decimated and placed in the same location.