-
Any way to emit particles based on an alpha channel?
Hi all,
I’m keyframing a solid texture’s alpha channel from pure white into black and using a noise pattern so it looks like a dirty erosion effect until no texture is left.
Ideally, I want to add some particles emitting from the areas that are left (still solid). Any way to do this that you know of?
Thanks,
Brian -
4 Replies
-
You can do it using Thinking Particles by way of the PMatterWaves node. First animate the alpha noise. Then copy it. In the MatterWaves node settings, set birth type to texture and then paste your alpha noise into the birth texture slot.
-
Thanks Adam, didn’t even know this existed. Unfortunately, I am poorly skilled with Thinking Particles. All that node stuff borders on programming for me.
Do I just start with a standard emitter and modify the nodes to fit in the PMatterWaves node? If so, where does it get placed?
And how does the node get “attached” or reference the object from which it will be emitting based on it’s texture?Thank you sir!!
Brian -
Fortunately it’s really simple. All you need is the PMatterWaves node, a shape node, and a TP Geometry object.
Example: 8686_matterwavesbasic.c4d.zip
-
Wow, that is very cool – thanks for taking the time to work that up! Very much appreciated! I’ll use this in my file and see if I can get the exact result I’m looking for.
Brian
Reply to this Discussion! Login or Sign Up