trying to use a .glsl procedural noise but not having much luck

V-Ray V-Ray for Maya General
1

Hello

im trying to use a .glsl open sorce texture from GitHub - BrianSharpe/Wombat: An efficient texture-free GLSL procedural noise library · GitHub

but i cant for the life of me get it to work. I appreciate that these textures might be too old for vray support or im missing a trick, any advice would be apreciated.

thanks

matt

2

We’ll investigate. Meanwhile, you can check out the VRayBerconNoise texture, which has some of the referred noise profiles.

3

Hi Alexsander,

thanks for your reply

yes i have been playing with the vray bercon noise its almost there but what im looking for is a cellular noise that starts from a hexagonal array rather then a grid. Like the attachment below, taken from this site https://briansharpe.wordpress.com/20…simplex-noise/

simplexcellularsample.jpg
simplexcellularsample.jpg860×430 37.1 KB

thanks

matt

4

Give a shot with the standard Maya cell node, leather node actually

5

Hi @damaggio

I must be blind, but where can I find this Maya node.

Thanks
Matt

6

Sorry Matthew, I was out on the street when i typed it, its a texture under Maya 3D Texture in the hypershade called Leather, is also decent to fake some foam in the water.

7

Hello Matthew,

The Wombat code is fine but it’s just a collection of functions and not full-fledged shaders. In order to see anything, a main function is needed (the entry point of the shader) which is expected to produce output by writing to gl_FragColor. I’m attaching a couple of very simple shaders, based on Cellular3D and Perlin3D_Deriv, just to illustrate how these can be turned into real shaders.

Best regards,
Ivan

Wombat.jpg
Wombat.jpg941×531 173 KB

Wombat.zip (3.36 KB)

8

Hi @ikomitov

Thanks for taking a look much appreciated for your efforts. I’ll have a play Monday.

Merry Christmas

Matt