I’m having an issue with with the textures or the UVs that are coming out of RC. Here are some images of one of the 169 model parts that I exported out of RC. The issue as you can probably see is that i have neighboring face with different color values which make the triangles stand out. By looking at the UV layout it looks to me that the issue maybe party a symptom how RC is unwraping the UVs. The color variations are always across UV seams.
That being said i’m surprised that RC would have this problem as it in most unwraping you’d need to maintain color consistency across UV seams.
So i’m perplexed. It’s been a while since i’ve used RC so maybe things are different in this version? RC version: 1.0.36310RC This issue appears in over all the model parts.
Some info about this project. It is done with drone photography of an area over 3km square. About 1400 photos, 169 parts, been reduced down to 53million tris.
I used the Unwrap in RC with these settings:
Gutter 2
text res: 8k
Large triangle: 10
Style: max texture count
Max texture count: 40 (though it only made 22 textures on export…)
Hello Eric, the unwrapping algorithm has changed in the version 1.0.3.9303. It is creating larger UV islands with less seams.
But if I understand correctly the issue is not in the texturing but in the shading of your model. If you are using Maya try viewing the model with No lights / Flat lighting and check the difference.
I don’t think it’s an issue with the shading of my model. Here is the model with Flat Lighting. You can see that the issues are very evident. You can see very hard color shifts right on the UV seams.
sorry, I never solved the problem. It seemed to be more evident in some cases and less in others. but i could never figure out a reason for why or what was the root issue.
I believe if you connect the texture to the emissive channel in the material in Maya you’ll get a better result. However, this totally removes the ability to adjust the lighting on the object. So I think I ended up using the emissive at 1/2 value which sorta allowed for a bit of re-lighting and reduced this issue somewhat.
I think what RC really needs is a way to de-light the texture. At the end of the day, you want something that looks good but can be re-lit.
It’s been a while since I’ve done any work in RC so my memory might be a little hazy.
