vertex colour mix map viewport display?

rooster · Dec 2006

I have a feeling this won't be doable but does anyone know a way to get both your textures to display in the viewport if you are using vert colours to mix them? I can only get one or other of the textures to display (3ds max 8)

Joshua Stubbles · Dec 2006

As far as I know, Max doesn't allow it

I -think- Ben has a shader for this? Or maybe it's in the ShaderFX demo... I can't quite remember.

JordanW · Dec 2006

Yeah you should be able to use ShaderFX to do this, there's an example in the demo.

CrazyButcher · Dec 2006

it does work, but only if both blended textures use the same UVs.
any HLSL shader would allow to blend this stuff, so standalone max will be sufficient. I will write a .fx file and paste it here

edit:

got a simple .fx going that allows you to paint vertexcolor masks, currently just 2 textures supported, but I could raise that if you want to allow blending via R,G,B,A individually.

you can get the file here:

http://www.luxinia.de/index.php/ArtTools/3dsmaxFX

rooster · Dec 2006

awesome crazybutcher! I'll give this a shot when I get back cheers man!

rooster · Dec 2006

hi something a bit odd is happening with the shader when I try it, looks like it might be on your sphere too? surfaces that arent exactly 90 degrees to my viewing angle start to go transparent

CrazyButcher · Dec 2006

ah I ll fix that, I wasnt aware max turns alpha blending on by default ... fixed.

rooster · Dec 2006

great it works a treat now

thanks!

Anuxinamoon · Nov 2009

Oh this shader works wonders, but I am unable to figure out how to tile the textures so I can spread it out over a terrain.

Thanks again CrazyButcher for this shader. I was pulling my hair out! xD

MoP · Nov 2009

rooster: If you're using Max, you should download ShaderFX - it's free for personal use and it's pretty easy to create some custom shaders that do exactly what you want (although in this case it seems CrazyButcher has it covered!).

I made a post of a video in the "snow and ice of uncharted 2" thread here, showing a vertexcolour blend of two textures with normalmaps based on a tiling mask:
http://boards.polycount.net/showpost.php?p=1022881&postcount=27

Anuxinamoon · Nov 2009

OMG you just saved my life! I was like trying to change values in the code and asking Hazard to bring back his memories of his game programming course to tweak the shader that I was using. Its was brain frying :<

Thanks MoP! *dances*

vertex colour mix map viewport display?

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