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#### Tips on Radiosity

If you want to see where your values are being calculated set radiosity `count` down to about 20, set radiosity `nearest_count` to 1 and set `gray_threshold` to 0. This will make everything maximally patchy, so you'll be able to see the borders between patches. There will have been a radiosity calculation at the center of most patches. As a bonus, this is quick to run. You can then change the `error_bound` up and down to see how it changes things. Likewise modify `minimum_reuse` and `distance_maximum`.

One way to get extra smooth results: crank up the sample count (we've gone as high as 1300) and drop the `low_error_factor` to something small like 0.6. Bump up the `nearest_count` to 7 or 8. This will get better values, and more of them, then interpolate among more of them on the last pass. This is not for people with a lack of patience since it is like a squared function. If your blotchiness is only in certain corners or near certain objects try tuning the error bound instead. Never drop it by more than a little at a time, since the run time will get very long.

If your scene looks good but right near some objects you get spots of the right (usually darker) color showing on a flat surface of the wrong color (same as far away from the object), then try dropping `distance_maximum`. If that still doesn't work well increase your ray count by 100 and drop the error bound just a bit. If you still have problems, drop `nearest_count` to about 4.

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