More renders

An update to yesterdays post, the lightmaps used in these shots were generated by my app and then rendered with mental ray. As before, no GI was used in max and the scene is lit with seven 1024^2 lightmaps. I haven't distributed the texel density of the scene very well so the shadow detail on the street / building surfaces suffers.

Lightmaps rendered in 3ds max

I thought I'd see how the lightmaps generated by my app look rendered in 3ds max. I used mental ray as the renderer but disabled final gather and global illumination. The light map is 2048^2 and took about a minute to render.

Environment test II

I've added some more detail to my exterior test scene, here are the results. The scene is lit by seven 1024 x 1024 light maps.

The lightmap shown covers the street and building geometry.

1st pass direct light, 464 subsurface samples and 464 final gather samples (52 seconds)

2nd pass 464 fg samples (23 seconds)

3rd pass 4454 fg samples (3 minutes 34 seconds)

1st pass direct light and 464 final gather samples (35 seconds)

2nd pass 464 fg samples (22 seconds)

3rd pass 4454 fg samples (3 minutes 30 seconds)

Medium scale environment test

To date I've focused on lighting characters or small rooms so I built this environment to see how it coped with larger scenes. I had to make a few changes under the hood but so far it's coping quite well. I'll post some more results once I've built the environment up a bit more.

Also, you may notice a few bright points where objects intersect walls and end up sampling the exterior environment map. This is due to bad geometry placement and isn't a rendering error.

Dusk

4 objects with 1024 x 1024 lightmaps

render time: 3 minutes (2 bounces)

Day

4 objects with 1024 x 1024 lightmaps

render time: 3 minutes (2 bounces)

Sub surface test (forgot to switch SSS off on the building geo)

2 objects with 1024 x 1024 lightmaps

render time: ~1 minute

Day (didn't use enough FG samples but I like the light quality)

4 objects with 1024 x 1024 lightmaps

render time: ~1 minute