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DarkBASIC Professional Discussion / Decals - How is it done?

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TheComet
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Posted: 27th Sep 2011 20:12 Edited at: 27th Sep 2011 20:13
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Hey everyone

How is this effect achieved without Z-fighting occurring?



Is the object subdivided and deformed over the underlying terrain? That doesn't sound very efficient

TheComet

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Pincho Paxton
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Posted: 27th Sep 2011 20:19
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You could probably do that with an alpha cloth effect.

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TheComet
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Posted: 27th Sep 2011 20:28
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Can you explain a bit deeper what that is? Google won't tell me anything. Does that also work for wrapping around things? In the screen shot you'll see it actually go underneath a cliff.

TheComet

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Pincho Paxton
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Posted: 27th Sep 2011 23:49 Edited at: 27th Sep 2011 23:50
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A cloth effect is just like cloth, it folds over a surface. DBPro has a new update with them. Then you need to make the cloth transparent with a alpha, which is a see through colour, and pattern. Some people on here make their own cloth effects with a plain that has vectors added to it.

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Quel
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Posted: 28th Sep 2011 00:17 Edited at: 28th Sep 2011 00:20
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Well if you ask me, that's a shader which projects that nice hexa style image onto the terrain object. That's a popular effect nowadays, every game seems to have it in some form. It can't be a technique that uses an additional mesh, it seems just so fluid and perfect.

Good to see finally without Youtube's ugly quality the SC2 terrain generation. Well, i hoped to see something much professional. I'm struggling with my own in my Schmupp level editor and i scrapped some tries so far because of those ugly texture collisions, and 'tada!' these Blizzard quality masters didn't give a flying... i don't care, mine is just gonna be perfect.

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Pincho Paxton
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Posted: 28th Sep 2011 02:34
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Oh yeah, it probably is a shader afterall.

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Stab in the Dark software
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Posted: 28th Sep 2011 16:10
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Here is a link to Van B's Project. Looks Like he did the effect you are looking for.

http://forum.thegamecreators.com/?m=forum_view&t=122906&b=5


[img][/img]


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Duke E
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Posted: 29th Sep 2011 02:57 Edited at: 29th Sep 2011 02:57
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Quote: "Here is a link to Van B's Project. Looks Like he did the effect you are looking for."


No, Van B solved it with Vertexdata manipulation of a multipolygonal plane that shapes itself to the underlying terrain.

However a shader similar to a textured flashlight shader would do it, plenty examples around of those.

Regards
Duke
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