blending between textures
polycounter lvl 8
hello
i am part of a small team making a game in unity. we have come across a problem.
in the starting sequence we want to make a house and the forest around you burn down. how do we go about doing this? ive thought about blending between 2 texture maps but how do i do this. we also want to make the leaves burn away so how would we do this.
thanks.
i am part of a small team making a game in unity. we have come across a problem.
in the starting sequence we want to make a house and the forest around you burn down. how do we go about doing this? ive thought about blending between 2 texture maps but how do i do this. we also want to make the leaves burn away so how would we do this.
thanks.
Replies
The technique involved is sampling a greyscale noise texture, then discarding the pixel if the sampled value is less than a uniform variable that you decrement at every frame.
http://simonschreibt.de/gat/sacred-2-burning-map/
In that burning map example there's also the use of a 1D texture. In this case the pixels are not discarded based on value, the value is just used as a U coordinate to get a burning colour.
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A variation of this technique is used to fade the bodies of dead enemies away in Doom 3 and Quake 4.
You can see it at 13:20 in this video:
[ame]