three simple bits of geometry photo matched in su with a pic of the web,
Well, I'm confused again. I have used photo match in SU quite a bit, but I still can't figure out what you did.
You started with a plain flat photograph (not spherical hdr or anything) of the theater. You used that photo in a photo match in SU. Once you calibrated your axes, you drew in the primitives and added a spot light.
But then what? Did you project the photo onto any of your primitives from within SU? I sort of don't think so.
If you simply exported the scene to Thea, I guess the part I'm missing is where nigec would have put an hdr in the IBL background, hidden the primitives, rendered the hdr, saved the image, and projected that image onto the primitives using front projection. Did you simply create a big plane in Thea and assign your original flat photo as the diffuse texture to the plane and all of the primitives using front projection? I guess that would work if you only want to work with one camera - the camera that you essentially back calculated via SU photo match. However, when I try that, I seem to have scaling issues with the textures on the primitives (the photo is projected onto the primitive, but the scale of the image is too big. I would have thought since the photo, camera, and texture were OK in SU. It is actually better when actually rendering, but in the interactive renderer, it is quite far off.
Anyway, if you are not too tired of this thread, any clarifications greatly appreciated!
I'll try to attach the .skp file and as far as I got with a .pack file.