Problem whith the shadow

ledgarl · Post by **ledgarl** » Tue Oct 09, 2007 5:51 am

Hi.
I don´t speak English.

I am creating a game.
I have a problem with the shadow. The shadow going beyond of the wall and create more shadows.

is this a bug?

please help me!

Thanks.

ledgarl · Post by **ledgarl** » Thu Jun 12, 2008 3:29 am

How I solve this problem?

hybrid · Post by **hybrid** » Thu Jun 12, 2008 7:59 am

Wow, you're very patient

However, this is a problem with the way shadow volumes work, it's not easily avoidable. It should be possible to add a user clip plane to cut off stuff at a certain range. Or you add scissors to the screen before rendering the shadow. In all cases you'll have to calculate the correct places where shadows ought occur, though, and do your placement of culling planes or scissors carefully.
Another way is to limit the shadow volume to a certain depth. Again, you have to calculate that depth carefully to avoid missing shadows.
Or you use shadowmaps which avoid this problem completely.

BlindSide · Post by **BlindSide** » Thu Jun 12, 2008 1:48 pm

Check out my sig (XEffects) for an easy to use shadow mapping wrapper. Best of luck with your project, this is the first time I've seen someone wait 10 months for a forum reply.

Dorth · Post by **Dorth** » Thu Jun 12, 2008 4:28 pm

Yeah, gotta admit I'm VERY impressed with that level of patience... Don't hesitate to ask for help, I think you've well earned the effort

wuallen · Post by **wuallen** » Thu Jun 26, 2008 3:15 am

give my respect to the creator of this thread.

ledgarl · Post by **ledgarl** » Thu Jul 17, 2008 5:06 am

jejeje, thanks, and I will use shadowmaps for my game, it is the best solution. Thanks