RenderParticleTexture

This is a small Editor utility I created for testing out particles in Unity.

It's a big hassle (in my opinion) to go back'n'forth from Unity to an image processing application to just slightly tweak transparency or falloff of a particle texture. That's why I created this one.

This is not a full tool, but something I created just for my own needs and use-case. I will probably extend it later when I need something else.

I implemented the particle texture rendering in a compute shader so that it would be fast and snappy to use when tweaking settings.

Features

• Generate both the particle shape and the color.

  • Colorization with a gradient.

• Procedural creation of particle shapes.

  • Distance fields used to generate smooth shapes.
  • 10+ available shapes.

• Rendering is handled on GPU using compute shaders.

• Texture will be applied automatically to the chosen particle system.

• Ability to save the generated texture to disk.

• Name texture.

• Custom Inspector with:

  • a Gradient Editor.
    • Edit both color and transparency.
  • Select shader.
    • Choose from pre-selected shader options.
  • Select resolution.
    • from 32x32 to 1024x1024.
  • Select particle shape.
  • Texture preview.
  • Supports Undo etc. Unity functionality.

UI

Generated particle textures in action

© 2020 Olli Sorjonen All Rights Reserved