Setting parameter via Blueprint isn't working

Development Rendering
, , ,
1

Here is my level blueprint that is supposed to change a material’s color when a trigger is called.

215404-blueprint.png
215404-blueprint.png1305×299 51.2 KB

2

And where do you assign this material to a mesh?

3

Yes. I assigned it to a mesh.

4

Show the material BP too

5

We do not see it in the image here, however. Judging by what’s happening now, you’re creating 2 dynamic material instances and store the references in variables. And then use a parameter to change the colour.

You’re not assigning the DMI to the mesh, though (last node):

215449-dmi.png
215449-dmi.png1123×381 61.8 KB

Do you do it later later? If you do set it explicitly somehow later on, could you show us the material.

6

I’m trying to change the color of a instance of foliage of a tree.

7

Creating DMI does not automatically assign it to anything. The object starts with a base material, you can create DMI choosing the material as a parent but you still need to apply it. Otherwise it just takes up memory space and does nothing. Alternatively you can assign like this, same thing:

215558-capture.png
215558-capture.png704×256 35 KB

8

Ah, I see. How would I asign it to a certain foliage brush?