Nightly Render - First Architectural Render

Actually, this was a daily render, since I left yesterday my PC at home rendering this model during my working time. This is a model created by my friend Ana Brütt in Autocad. She is studying Architecture, so I guess this is my first real architectural render. Thanks, Ana! ;-)

(Architectural model by Ana Brütt - click to enlarge)

This was a loooong 10 hours render, and still it has lots of noise. I really wanted to see the light being scattered inside the building, so I chose a recursion depth of 15 ray bounces and 300 rays per pixel (these two factors are the reason for this long rendering time) . The model has about 2.700 triangles. The model is lighten by an panoramic image of a sky with a far landscape and with a far triangle light to imitate the sun.

Path tracing is not a good choice for this kind of render with lots of indirect light. The next step will be, definitively, to implement Bi-Directional Path Tracing and Photon Mapping. Both these algorithms find probably more easily good paths through the entrances of light, since part of the emission is done from the lights into the model. Another interesting algorithm that seems to be very good finding the right paths in this kind of scene is Metropolis Light Transport. Well... there's lots of work in front of me... :-)