How to get self_shadow within shadow map?

[Elminster]

:?
can give some articles or links
THX
(sorry, my english is very poor )

 

[Humus]

Shadow mapping gives selfshadowing without any special treatment.

 

[Elminster]

but......thats impossible.....
how to do it?

 

[Reverend]

:?
can give some articles or links
THX
(sorry, my english is very poor )

I'm sorry too and it's not about your English!

Try starting with this and then this and do some follow-ups.

 

[991060]

Do you mean self shadow when bumpmapping? If so, seach horizon map in google. If you mean self shadow on real geometry, both shdow map and shadow volume support it natively.

horizon map's theory and implementation:

http://research.microsoft.com/~cohen/bs.pdf
http://www.delphi3d.net/download/horizonmap.zip

 

[MfA]

Shadow map nowadays usually refers to the use of the depth buffer from the light points of view, not the old school demo/game shadow maps where you projected shadows onto textures.

 

[LeGreg]

not the old school demo/game shadow maps where you projected shadows onto textures.

Why do you call that old school? Seems like a lot of recent games (and some games to come) still use projected textures as shadows.

 

[Deecie]

not the old school demo/game shadow maps where you projected shadows onto textures.

Why do you call that old school? Seems like a lot of recent games (and some games to come) still use projected textures as shadows.

It's not cool anymore

Wait.. do pre-made shadows (like those in the game Global Ops, just as an example) count as projected textures, and not dynamically lit?

 

[MfA]

Old school just means it is more traditional, not that it is dead.