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Matrix operation on shadow map?!?! #45039
05/01/05 15:40
05/01/05 15:40
Joined: May 2003
Posts: 609
Rattenfängerstadt
Rigoletto Offline OP
Developer
Rigoletto  Offline OP
Developer

Joined: May 2003
Posts: 609
Rattenfängerstadt
Hello,

i start a new tutorial for scaling, shifting and rotating level-textures with FixedFunction. I think above

- running lights in a corridor like in Enterpise, should be possible
- surfing waves on the beach, should be possible

- faking flickering shadowmap (like caused by a torch/flare), but by a matrix operation the shadow map gets damaged (slightly change size and shift)

I think this flickering shadowmap would be nice but it is destroyed by a matrix operation. How can i avoid this? When this is not possible what do you want to see? Or have a better idea?

Last edited by Rigoletto; 05/01/05 15:42.
Re: Matrix operation on shadow map?!?! [Re: Rigoletto] #45040
05/01/05 20:22
05/01/05 20:22
Joined: Sep 2003
Posts: 5,900
Bielefeld, Germany
Pappenheimer Offline
Senior Expert
Pappenheimer  Offline
Senior Expert

Joined: Sep 2003
Posts: 5,900
Bielefeld, Germany
Scaling, shifting and rotating level-textures with FixedFunction for a good placement on the blocks would be that what I am curious of. Somehow the part that is needed to complete your first tutorial! Keep up your good work!

Realtimeshifting etc. - at the moment I don't have an idea whatfor I should need it.

Re: Matrix operation on shadow map?!?! [Re: Rigoletto] #45041
05/01/05 21:25
05/01/05 21:25
Joined: Mar 2005
Posts: 969
ch
Loopix Offline
User
Loopix  Offline
User

Joined: Mar 2005
Posts: 969
ch
surfing waves on the beach...A feature I would love to implement in my future island project...Hurry up!

Re: Matrix operation on shadow map?!?! [Re: Pappenheimer] #45042
05/02/05 10:58
05/02/05 10:58
Joined: May 2003
Posts: 609
Rattenfängerstadt
Rigoletto Offline OP
Developer
Rigoletto  Offline OP
Developer

Joined: May 2003
Posts: 609
Rattenfängerstadt
It is finished: SimplePixelShaderTutorial

Shifting can be done with FF or VS i think. Here it is done with FF.
Texkill is practialy not possible to make a levelface invisible.
HSLS Tut will follow.

Re: Matrix operation on shadow map?!?! [Re: Rigoletto] #45043
05/02/05 21:05
05/02/05 21:05
Joined: Sep 2003
Posts: 5,900
Bielefeld, Germany
Pappenheimer Offline
Senior Expert
Pappenheimer  Offline
Senior Expert

Joined: Sep 2003
Posts: 5,900
Bielefeld, Germany
Simple and clear as all of your tutorial! Thanks a lot!

It is a pity, that I don't have time to test it.

One question came to my mind: How do I apply such values to the blocks?
In your example, you applied it generally to all blocks. What, if I have different blocks with the same textures, but I need different shiftings and angles on the different surfaces?

Re: Matrix operation on shadow map?!?! [Re: Pappenheimer] #45044
05/02/05 22:48
05/02/05 22:48
Joined: Jul 2002
Posts: 2,813
U.S.
Nadester Offline

Expert
Nadester  Offline

Expert

Joined: Jul 2002
Posts: 2,813
U.S.
@Pappenheimer, you have to make copies of that texture with different names.


--Eric
Re: Matrix operation on shadow map?!?! [Re: Nadester] #45045
05/02/05 23:25
05/02/05 23:25
Joined: Jun 2004
Posts: 241
muralist Offline
Member
muralist  Offline
Member

Joined: Jun 2004
Posts: 241
How do I get the password to the wiki?

Re: Matrix operation on shadow map?!?! [Re: muralist] #45046
05/03/05 02:07
05/03/05 02:07
Joined: Sep 2003
Posts: 5,900
Bielefeld, Germany
Pappenheimer Offline
Senior Expert
Pappenheimer  Offline
Senior Expert

Joined: Sep 2003
Posts: 5,900
Bielefeld, Germany
@muralist: Take the link at the bottom of this page. The password is in the pic of the login page.

@Nadester: That means that I have to be carefull and shouldn't use this function too often, right?

Re: Matrix operation on shadow map?!?! [Re: Nadester] #45047
05/03/05 10:59
05/03/05 10:59
Joined: May 2003
Posts: 609
Rattenfängerstadt
Rigoletto Offline OP
Developer
Rigoletto  Offline OP
Developer

Joined: May 2003
Posts: 609
Rattenfängerstadt
Quote:

@Pappenheimer, you have to make copies of that texture with different names.



Isn´t there a face vector that can be used?


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