Render to Texture, Brute Force only?

[Jeffrey]

Currently I'm on a project that involves some texture baking using the render to texture tool.
The baked map needs to be a full GI solution without any textures. After some tests it seems the only way to get an accurate output is by using the brute-force method. I hope I've missed something here, because the brute-force method is extremely slow.

Any suggestions?
Thanks!

[vlado]

You can also use the irradiance map, but you will need higher max. rate to reduce light leaks.

Best regards,
Vlado