RE: [Algorithms] HDR IBL clarification

[Jon W. <hp...@mi...>]

In fixed function pipe language, GL_NORMAL_MAP texgen mode is useful=20
for image based diffuse lighting, and GL_REFLECTION_MAP texgen mode=20
is useful for specular lighting.

Note that the really interesting applications happen when you start=20
solving BRDFs by taking various angle look-ups into effect, and also=20
when you can compress the "image" function into some small, efficient=20
space, such as with a spherical harmonics environment.

Image based lighting is a fairly simple and general idea/area; I=20
find that all of the interesting stuff is in various implementation=20
details and specific ideas that use or fall into this area.

Cheers,

                / h+

-----Original Message-----
From: gda...@li... =
[mailto:gda...@li...]On Behalf Of Colt =
McAnlis
Sent: Friday, April 25, 2003 1:54 PM
To: gda...@li...
Subject: [Algorithms] HDR IBL clarification


howdy all.
I've been looking over the Image Based Lighting specs, and from what I =
can tell, seems pretty simple. Essencially, isn't it a Cube map added =
onto a mesh with some texture hightlights, or am I missing something?
~Main



=3D=3D=20
Colt "MainRoach" McAnlis=20
Programmer=20
http://www.badheat.com=20



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