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Texture mapping a sphere seamlessly

Posted: Tue May 19, 2020 8:54 pm
by atoyuser1
Hi, I was wondering if there was a simple method to achieve seamless procedural textures, like there is in the standard/physical render in Cinema 4D. For example:
Standard.JPG
Here's a version in Octane:
Octane.JPG
Octane Map.JPG
A similar question has been posted here and I also found this solution, but it seems a bit complicated

The nearest I can get is a tileable image texture, but that creates an ugly top and bottom.

I found a tutorial from Otoy on doing it here, which works perfectly, but that required creating a spherical texture in Zbrush:
rock_DM.jpg
rock_DM.jpg (89.95 KiB) Viewed 4982 times
Any help appreciated in achieving this, I'll happily go down the Zbrush route, but I wanted to check there wasn't a better way

Thanks

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 8:52 am
by nejck
Perhaps a Tri-Planar node would help. Unless you need it to be precisely unwrapped :)

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 10:13 am
by aoktar
depends what you really try to do. Also using octane projection types for non-deforming animations or static meshes

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 10:30 am
by atoyuser1
nejck wrote:Perhaps a Tri-Planar node would help. Unless you need it to be precisely unwrapped :)
thanks for your reply. Would the Tri-planer method be as described here?: https://inlifethrill.com/seamless-displ ... cinema-4d/

I would like it to be as evenly distributed and seamless as the Cinema Standard/Physical render. I guess the only way would be using an unwrapped map like this?
Moon_2k_Color_Preview_v001.jpg
But then I would be dealing with quite large maps

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 11:27 am
by atoyuser1
aoktar wrote:depends what you really try to do. Also using octane projection types for non-deforming animations or static meshes
It would be a static mesh. The noise mapping in C4D is distributed perfectly, I am looking for a solution in Octane, preferably without using external images

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 11:39 am
by aoktar
you can use c4d noises if you're on 2020

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 11:45 am
by atoyuser1
aoktar wrote:you can use c4d noises if you're on 2020
Thanks, I'm currently using 4.05-R7 with C4D R20.

I shall download 2020.1-R4 and see if that works

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 12:15 pm
by atoyuser1
aoktar wrote:you can use c4d noises if you're on 2020
Thanks aoktar, that works for Diffuse maps now!:
Diffuse.JPG
I'm trying to use it for a displacement map now:
Crash.JPG
But this method crashes C4D. Am I doing it correctly?

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 12:23 pm
by aoktar
atoyuser1 wrote:
aoktar wrote: I'm trying to use it for a displacement map now:
Crash.JPG
But this method crashes C4D. Am I doing it correctly?
you'll still get tilability with baking node. Also it's not crashing but calculating repeately. I'm working on fix for the issue.

Re: Texture mapping a sphere seamlessly

Posted: Wed May 20, 2020 12:33 pm
by atoyuser1
aoktar wrote:
atoyuser1 wrote:
aoktar wrote: I'm trying to use it for a displacement map now:
Crash.JPG
But this method crashes C4D. Am I doing it correctly?
you'll still get tilability with baking node. Also it's not crashing but calculating repeately. I'm working on fix for the issue.
thanks. Is there a way to avoid tiling in displacement ?