I'm working with particles (for grass or leaves). The problem is the blend file is very huge when it contains a lot of particles.
Is it possible to stop blender storing particle data to make the file smaller?
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One very simple way to do this is to write all the values for your particle systems that tell how many particles are to be rendered, and then to change that value to a much smaller one for storing.
Open a Text Editor region and type the particle system name and numbers:
You can now change back to these values when you want to use this file again.
I saved massive amounts of space. The original not reduced version was 15MB, while the reduced version was 550KB.
While this works, it can be quite tedious, and is still just a work around. MutantBob's answer might be more along the lines of what you are looking for.
When you have a fluid simulation in your scene and you use objects with fluid type Particle, setting the fluid type to None also slashes the file size, in my case from 70MB to 1.5MB
This is a bit tedious, but your settings aren't lost. if you change the type to particle again, you will see your settings restored