Particle system: stretch texture by speed and direction of travel, how?

Unity Engine
1

I have some smoke texture that I want to use as trail, but:

  • It’s a texture sheet, AFAIK, trail module doesn’t support texture sheet, so no way to animate the smoke naturally.

  • I then want to use size by speed module to achieve this, but the scale is world space, so I can’t use object transform to make them relative (for example, I only want stretching in the direction of travel, I can’t do that in size by speed).

  • I think trail renderer has the same limit as trail module in terms of texture sheet support.

So what’s the solution here? I feel like being given a multi-tool box and yet none of the tool work for me.

2

Indeed the trails don’t support texture sheets.

Perhaps individual smoke particles in a sub-emitter, rather than with a trail, would be more successful? (This way you can use texture sheets, and scale each particle according to direction of travel, if you want)

1 Like
3

You could use texture sheets by making a custom shader (either code or graph) :smile: