How to deal with the cube map in irradiance environment map precalculation?

Started by 50CoL, Dec 12 2012 08:22 PM

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#1 50CoL Members - Reputation: 118

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Posted 12 December 2012 - 08:22 PM

Hello guys,

Currently, I'm working on sth about irradiance environment map ( generates diffuse/specular map from a

given cubemap ). As I need to calculate the diffuse and specular factors from the cubemap, I need to

know how to get every pixel on each side of the cubemap. But I cant figure it out.

How can I unwrap the cubemap and render it on the screen ( Like post process ) or there are other ways

to achieve this?

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