Aerial photo on Topography Issues

[studioe]

Developed a sandbox topo surface from a LIDAR CAD file.
When I go to apply the aerial photo to the surface, I get this.... ideas?

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[Rich O Brien]

Are you projecting the texture?

[studioe]

The aerial has the "use as material" checked. It's also a projected material.
I'm not sure if I'm answering your question, but if I tried to apply the aerial while it was in it's group, it applied it to every polygon independently. If I sampled it while I was in the group, it applied it holistically. But I don't know what to make of the inconsistency and random poly's.

Here's a closeup. I simplified the contours before generating the sandbox. Wish there was a way to smoothen out the jaggedness. I tried soften but no good.

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[Rich O Brien]

Can you import the image as a texture and scale it to match the sandox terrain then set it as projected?

Then paint the sandbox with the sample image.

[studioe]

Yes, that's sort of what I did. However the image is much larger than the sandbox which is a strange shape based on the area of the survey. About 3/4 of the image is placed correctly...it's just the random triangles. It looks fine on the google terrain I imported and placed the same image on (see attached). Just less accurate.

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[Rich O Brien]

Can you share an area with the funky texture?

No need to add the text just the mesh

[studioe]

Here ya go!

Thanks!

[Rich O Brien]

Here I go!

[studioe]

Hmm...too big to attach.
Here's the CAD file I imported to create the topo. Maybe There's another way to bring it in? I used simplify contours with a 30 degree factor.

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skp file with topo imported.

[Rich O Brien]

Did you try TopoShaper?

It could take several minutes to process that terrain but the output would be superior and easier to project the texture to.

Maybe work in isolated area then combine.

[studioe]

I couldn't get that to load on SKP2016.
I uploaded the topo - figured you or someone else could make sense of it.

[Rich O Brien]

I tried Toposhaper on an area and it worked fine.

Trying it on the whole mesh didn't work as well and it bug splatted.

Toposhaper does work on 2016 as that's what I ran it on. Hi

[pbacot]

If your terrain is clean and connected, and softened-smoothed to one surface, With hidden geometry showing project image onto one face (or set the current face material to projected). Sample that face. Then with hidden geometry off, paint the whole surface. Or did you try this?