Irradiance Maps: Two heads are better than one
posted by SILENT44
archived on 10.5.2002
hey guys.
same scene, same lighting etc.
just 2 different camera positions, each with its own
saved irradiance map.
is there a way to combine the 2 irradiance maps together
for an effectively 'more accurate' irradiance map?
Follow-ups
A: Try this:
1) Set your settings to get the quality you want.
2) Render camera 1, as per normal
3) Set to "Incremental Add to Current Frame"
4) Render camera 2. Stuff that has GI already calculated will not be recalculated, so this should be faster than step 2)
5) Save irradiance map.
6) Set the rendering settings to use the irradiance map you saved.
This should give you an irradiance map that works from both camera angles and is faster to compute than just calculating 2 seperate maps.
Now, the help file is a little unclear on this, and I haven't really tested it, so I may be wrong, but try it, and good luck :)
Note also that if you already have saved your map, you can:
1) reload it by rendering from the saved irradiance map
2) Change camera
3) Render with incremental add to current frame
The map is loaded off disk, and stays there to be added to...
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