Create a Jalli Pattern with Thickness

[manishpaul_simon]

I was able to create a jalli pattern with thickness using the opacity & displacement maps.
But the problem it's not perfect and the projection is conical in nature, than being a perfect extrude.
How can I achieve a perfect extrude of a jalli texture material in Vray 5 for Sketchup?

Thanks

[konstantin_chaos]

Hi manishpaul_simon,

Naturally modeling the pattern would be the most obvious solution.
It will give you the most control and potentially the highest quality result.

If, however, you want to achieve the extrusion and the cutout using procedural rendering techniques here's your best bet:

1. Add a Displacement modifier to the mesh you want to see the pattern on.
2. Make sure that the mesh also has proper UVs - use the Texture Helper if the material is not using any textures.
3. Add your mask or height pattern texture in the displacement map slot. I'd recommend you use the smallest pattern patch possible (do not repeat the patter a lot of times in the texture itself)
4. Select the 2D Displacement mode.
5. Adjust the Resolution parameter to control the 2D displacement quality.
6. Enable water level and tweak the Level Height value to cut the bottom halve of the mesh.

Here's an example:



Note that the mesh will appear hollow when viewed from the back...

Hope that helps,
Konstantin

[sirio76]

There’s also a trick to get the mesh closed on the back if needed, duplicate the surface, reverse the normals and apply the same displacement.

[konstantin_chaos]

There’s also a trick to get the mesh closed on the back if needed, duplicate the surface, reverse the normals and apply the same displacement.

Correct,
This is not so easy to setup though and there might still be a visible seam along the contact surface.