Sponza Cinema 4D R21 Global Illumination
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Check youtube for others go at this classic 3D render test. Cannot find videos of the actual structure, You may think 35 hours !! But it is a real test for global illumination with the only light being from the open top. And there are some very smooth ceilings so artefacts are a problem The trick is to stop it looking CGI with some depth added and atmosphere. That I will work on next. As i said earlier 2.5 mins a frame when we would be looking at 10 mins + for a good still render..so I am quite pleased.
Gonna really punch it out with some added lighting and the god rays
The blotchiness on the right upper ceiling is due to the reflected sun light from the floor a really hard thing to calculate and get right but it is stable..I will look at getting that fixed in post perhaps with another render just for that section of ceiling, but it should not be too smooth, like the left hand one, as the sunlight will have an effect, just not so blotchy.. I can separate those polygons out for the render but still have the full building give the GI indirect lighting so should be a relatively fast render. I will do that with an alpha so i can just composite it onto this existing render.
You can d/l my 13 hour TurbulenceFD tutorial set from here : http://store.payloadz.com/go?id=2605809