Ian Romanick wrote:
That would be useful, but it won't solve the problem Chris was seeing. I'm pretty sure that when TexSubImage is used to update a dynamic lightmap, the entire texture is replaced.
Not necessarily. If I recall, quake combined many lightmaps into one large texture. It might only be updating the portions that change, unless I'm wrong and dynamic lightmaps were stored seperately.
That is true for the static lightmaps. I seem to recall from looking at the GPLed Quake2 source that each dynamic lightmap is its own texture object. I could be wrong, though. In either case, it would be easy enough to figure it out: Use the source, Luke! :)
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