Normal Mapping Grass

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Posts: 522
Joined: 2002.04
Post: #16
Although not specifically about OpenGL, I think this shows some really good results of normal mapping billboards. Check out the movies.

http://www.drone.org/tutorials/lighting_...jects.html

-Jon
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Posts: 834
Joined: 2002.09
Post: #17
Jesus H. Christ that's a nice quad.
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Moderator
Posts: 522
Joined: 2002.04
Post: #18
This is an interesting paper on real time grass:

http://w3imagis.imag.fr/Publications/2001/PC01/

Some ideas in there Smile

-Jon
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Member
Posts: 509
Joined: 2002.05
Post: #19
Cool, thanks for the links!

Right now (Before I read the post) I made a class that generates X amount of random points and then assigns variables depending on what surface they lay on (no grass growing in the water). I quickly then rendered them with GL_Lines and it looked bad because they were all the same width regardless of distance. I can still use the same code for billboards. I will post a screenshot when I get it finished.
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