is shadowmapping possible?

Blitz3D Forums/Blitz3D Programming/is shadowmapping possible?

Kalisme(Posted 2005) [#1]
I've been confused about this for a while... never thought of just asking though... (until now) Then after a while I settled for more simple projected shadows like the ones seen in Swifts shadow system...
But I was re-interested in shadow mapping after playing "Luigis mansion" on gamecube... I was interested by it at first just because of the shadow engine... (then the gameplay kicked in... *sigh*... I like kids games)
at first I thought it was volumentric stencil shadows like in doom3... but after playing it for a while... I noticed the shadows where textures casted across the objects...
So... I don't know if I'm using the correct term... I beleive it's shadowmapping... but anywho... is this actually possible through blitz3d?
Like.. I mean I know it could possible be done... but... would it even run at a playable speed?


Mustang(Posted 2005) [#2]
Do you mean Standard Shadow, Bounding Box Approach, Perspective Shadow Maps or Trapezoidal Shadow Maps type of stuff?

http://www.comp.nus.edu.sg/~tants/tsm.html

These are not possible IMO, because you need direct & fast access to various buffers.


BlackD(Posted 2005) [#3]
Stencil Shadows?

Not possible in Blitz3D natively, but if you have some experience in programming DX you can enable them.

+BlackD