Random 2d particles in Particle_system from spritesheet

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Hi! Can't find a way. I have spritesheet of several feathers that i want to act as particles. I set particle system - then assign material which is a spritesheet already sliced in unity and set render - with alpha transparent. The thing is that the whole spritesheet is generated as particle but i want each particle to be randomly taken from the spritesheet so the feathers will be different(i have about 8 variants). Please help.

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Answer by Louis-N-D · Sep 04, 2014 at 05:49 PM

It is possible, and I use the technique extensively.. Not only to produce variation but also to allow all particle emitters in my game to share a single material.

In the emitter's "Texture Sheet Animation" settings, assuming you have a sheet of 16 different feathers in a 4x4 grid, set things up this way:

Tiles X:4 Y:4 Animation: Whole Sheet Frame over time: (select "random between two constants") 0 to 15 Cycles: 1

Play around with these settings to see how you can use them to incorporate multiple particles onto one sheet. For animations or randomization as you're doing, I usually put all the frames on one row and set the Animation setting to Single Row instead of Whole Sheet. Anyway, experiment with that.

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HanibalDM · Sep 06, 2014 at 09:07 AM 0

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Thank you ! It's Alive! Alive! ^) Now theme can be closed ^)

Answer 2

Answer by LSPressWorks · Sep 04, 2014 at 03:21 PM

I'd split then up, create an array of a variable for the materials, and select a random array element to assign personally.this allow you to add, change pieces of art without re doing the sprite sheet. Otherwise there is a YouTube bid called like, unity advocate texture, that links to a script that can handle that via it's index variable. Being on phone i can't get to it though.

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Random 2d particles in Particle_system from spritesheet

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