displacement

[spillstudios]

I'm having a lot of trouble with displacement at the moment, I purchased some 3d scan models from turbosquid which are very dependent on displacement but when I set up a material using the textures provided I can see the polys separating especially on angled corners - is this something i'm doing wrong or is there a work around?

thanks

Marc

[Liketheriver]

Hi spillstudios,
In the broken area, it render also black shadows or artifact? Your model scale is 1,1,1 in the 3 axes? I had an issue like this in a model, and resolved it "freezing" the object scale, it was like 1,2 in y, 0,5 in × and 0,8 in z (random numbers, only for example), i think the non uniform scale skrew up the displacement, i'm referring to c4d but i think it's same stuff in 3dmax.
Another cause can be the uv map of the model, the displace of octane seems to broke in the border of the uv shells, but for this the only partial solution I hqve found is to increase the displacement resolution

[azen]

I'm having a lot of trouble with displacement at the moment, I purchased some 3d scan models from turbosquid which are very dependent on displacement but when I set up a material using the textures provided I can see the polys separating especially on angled corners - is this something i'm doing wrong or is there a work around?

thanks

Marc

Hi,

To better assist, could you supply screenshots of your material setup and your models? More information about these will be needed in order to properly assess the issue.

Cheers,
Azen

[spillstudios]

So image is attached, I'm converting some turbosquid fbxs to octane - tried the converter tool with the vray versions of the models and it just says missing materials so fbx seem to convert the best. Take a look at the image and see if you can spot any problems, for this model i am simply using the rgb texture as a displacement to give it some extra detail as the geo is quite angular. Look forward to your replies.

[spillstudios]

I found using a meshsmooth modifier with smoothing set to zero stopped the mesh breaking apart, more polys but its a fix

[coilbook]

when will we see procedural displacement?

[profbetis]

This is most likely caused by unsmoothed edges, which will cause displacement to offset on faceted edges. Smoothed edges will connect the displacement texture.