can I create an array of material Sphere Mask locations?

Development Programming & Scripting Blueprint
1

I would like to create an array of sphere masks inside of a material with an array of locations any ideas on how I can accomplish this?

2

I don’t think that is possible.

I think instead you will want to create a material parameter collection and do all the work with the arrays in BP, which will set the param collections and update the materials as needed.

3

Thanks for your quick response Zeustiak! The Problem with using Material Parameter Collection is I have to call each parameter individually in the material and I wanted to use this for procedural foliage.

4

There is no array or for-loop support in the material editor unfortunately (there has been some requests for this but Epic doesn’t think this is important apparently(?) if you don’t mind, you could also make a request in the feedback section… the more requests the better)
So yeah, the only way would be to make a bunch of material parameters and set them one by one.

5

I’ve been trying to so the same thing with my procedural grass shader. I have all the locations as an Array and called in to the shader via a collection… but I think we need to do some extra logic to make the sphere mask add up itself like an array

6

It’s quite doable, have a look here:

https://forums.unrealengine.com/deve…on-offset-data

In the end I manged to pull it off using **xnihil0zer0’s **method. It needed lots awkward tweaks, though. I also tried the solution RyanB suggested and it worked OKish, too.

Having said that, I’d like to see a proper support for loop support in the materials.

edit: pfff, just noticed this is a 3 year old thread! I blame you @**Abeysaurus ;p **What a necro bump.

7

hahah! I didn’t realise the date of the thread… I only just got into location based shaders. I did look at that thread earlier, but storing locations in a texture won’t work for characters that move around would it?