Shadow Map Demo - New RTS shadow demo!

BlindSide · Post by **BlindSide** » Mon Jun 18, 2007 2:28 pm

Updated first post.

Strong99 · Post by **Strong99** » Mon Jun 18, 2007 4:57 pm

if i stand next to the models, the shadow is realy nice, when i fly away and look back there are some strange side effects at the edge of the shadow texture, although the shadow itself looks ok.

olivehehe_03 · Post by **olivehehe_03** » Mon Jun 18, 2007 11:39 pm

strong99 wrote:if i stand next to the models, the shadow is realy nice, when i fly away and look back there are some strange side effects at the edge of the shadow texture, although the shadow itself looks ok.

Yep, same thing here. It looks really nice up close though, about 15 - 25 frames on my laptop. Just curious, is there any way of turning the detail down, like less filtering and a lower-res shadow map so it runs better? It could just be my slow video card though

BlindSide · Post by **BlindSide** » Tue Jun 19, 2007 8:39 am

Sorry I disabled the options to turn the detail down in that demo, but it very easy to do through code.

About the artifacts, yeah that happens, i think it is not the fault of the shadows but the LOD on the irrlicht terrain, when it changes when you get far away it maybe begins to distort the shadows..I am going to try to disable it and see the results.

omaremad · Post by **omaremad** » Tue Jun 19, 2007 10:33 am

Check your pm's.

Virion · Post by **Virion** » Tue Jun 19, 2007 1:29 pm

omg the new demo is cool! *salute*

JPulham · Post by **JPulham** » Fri Jun 22, 2007 4:11 pm

you mention PSM... but from the looks of i TSM looks quite good as well... just google 'Trapezoidal Shadow Maps'.
I don't know too much about them but they look decent I guess

omaremad · Post by **omaremad** » Wed Jun 27, 2007 12:22 pm

Blindside, i cant get to you much on irc but we can scrap that special 3 component method since irrlicht already suppourts 24 bits depth maps (just found that out today in the source), also rember thos artifacts with my method i think its because of i forgot to prespective divide in stage 1 (z/w).

Nadro · Post by **Nadro** » Wed Jun 27, 2007 1:52 pm

Shadows look very nice:)

BlindSide · Post by **BlindSide** » Wed Jun 27, 2007 4:37 pm

omaremad wrote:Blindside, i cant get to you much on irc but we can scrap that special 3 component method since irrlicht already suppourts 24 bits depth maps (just found that out today in the source), also rember thos artifacts with my method i think its because of i forgot to prespective divide in stage 1 (z/w).

Nah if you forgot that im sure we would of had much worse results. Could you pm/irc me some info on how to use those depth maps? Ill have a look through the API doc myself sometime.

Revan1985 · Post by **Revan1985** » Thu Jun 28, 2007 10:59 am

800x600 : 73-85

is good done, but in a far distance there are some visualizzation problems [i see black square whit the shadows...]

BlindSide · Post by **BlindSide** » Thu Jun 28, 2007 11:06 am

Revan1985 wrote:800x600 : 73-85

is good done, but in a far distance there are some visualizzation problems [i see black square whit the shadows...]

Yeah I fixed this easily by turning terrain LOD off..

BlindSide · Post by **BlindSide** » Mon Jul 09, 2007 4:36 am

Ok i have released a new demo to keep you occupied. Wrapper is coming very very soon! (I have had the flu for the past couple of days and also took a trip out of town so had no chance to work on this)

beshrkayali · Post by **beshrkayali** » Mon Jul 09, 2007 6:41 am

hey BlindSide,
Are you planing to publish the source code,
it would be very cool with my game

BlindSide · Post by **BlindSide** » Mon Jul 09, 2007 7:14 am

Do you use lightmaps with your game? I will need to add lightmap support.. Currently only materials SOLID and DETAIL_MAP recieve shadows.

Yes I am releasing an easy to use wrapper soon.

It will be like:

effect->addShadowToNode(node,EFT_4PCF); (EFT_4PCF = 4 sample PCF smooth filtering)

Cheers