Mesh Painting & Modular Assets

ivanzu

Hey,I started working on small environment so the problem I encountered is that its mainly made from brick walls and that its all going to end up looking the same so I was thinking of using mesh painting but I don't know if I should make every wall subdivided so it has 4 vertices on every face and would that affect the performance and create some problems with modularity or I could use masks controlled with worldspace?And would I get seams if the floor has less vertices then the wall beside the floor?

Examples:

passerby

i would add some divisions to the surface, and also use a height map to add more variation to the vertex blending as well.

is this for UDK? if so i could post a shader network for a good vertex blend that uses 2 channels one for the blend 1 for falloff, and uses a heightmap to blend dirt and moss into the cracks in the brick before the surface.

Froyok

This maybe ?

http://www.chrisalbeluhn.com/UT3_Adding_Brick_Variation.html
http://www.chrisalbeluhn.com/UDK_Asset_Position_Offsets_Texturet_Tutorial.html

ivanzu

Yeah its for UDK.

passerby

could try building a expression like this, than hooking it up to the alpha of the lerps for your texture blend.

it's quite simple red channel fills in the blend, green channel controls the falloff, the heihgtmap controls how things blend in, the darker the color the earlier it will fill in.



a good idea would be to build that part as a material function, so you can just drop it in as 1 node.

ivanzu

Thanks for the help!

passerby

your still going to want some extra geo, but this will allow you to get a nice transition with out tons of verts for painting. depending on the wall size maybe 3 to 6 extra loops in both directions.

WarrenM

Snefer did an awesome vertex painting video for Eat3D. It's free and it's short. Totally worth watching.

http://eat3d.com/free/vertex_painting