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DarkBASIC Professional Discussion / Terrain commands

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PatDaRat
21
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Joined: 1st Dec 2002
Location: Australia
Posted: 1st Dec 2002 08:48
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these are the few commands for terrain -
MAKE TERRAIN Terrain Number, Heightmap Filename
DELETE TERRAIN Terrain Number
POSITION TERRAIN Terrain Number, X, Y, Z
TEXTURE TERRAIN Terrain Number, Image Number

*How do i scale a terrain without changing the image size?
*What are the extra perameters for 'Make terrain'?

will i have to scale all my objects and code down to fit my terrain or is there an easier way?

I want to be able adjust the maximum height of the terrain as well. And is it possible to add a bumpmap to a terrain?

Any help will do!!

L8a
P@DaR@
What are you going to do?? Release the hounds.. Or release the bees.. Or release the hounds that shoot bees out of there mouth!?
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Bighead
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Posted: 1st Dec 2002 09:19
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Pls read the folowing post:

http://www.darkbasicpro.com/apollo/view.php?t=1316&b=1

As far as I know the DBP team will revamp the terrain system to include more options like multitexturing and fast dynamic landscape modification.

I don't know wheather this new features will be included in patch 4 or not.
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PatDaRat
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Posted: 1st Dec 2002 09:28
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thanks for that!! Now i know that all is NOT lost. I hope they make it so i can have a texture scale the whole landscale.
cheerz!

What are you going to do?? Release the hounds.. Or release the bees.. Or release the hounds that shoot bees out of there mouth!?
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LethalFrog
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Posted: 1st Dec 2002 11:15
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It would be very nice to see the ability to retrieve the normal at a point on the terrain. This would hlep in making vehicles drive over it rather that float over it.

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haggisman
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Joined: 26th Aug 2002
Location: United Kingdom
Posted: 1st Dec 2002 11:21
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You could calculate the normal

Specs:- 1GHZ athlon, Radeon8500, 192mb ram, winxp
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Bighead
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Posted: 1st Dec 2002 20:46
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haggisman: do you have an example script on how to calculate it w/Terrains?
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haggisman
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Joined: 26th Aug 2002
Location: United Kingdom
Posted: 1st Dec 2002 21:42
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To calculate a normal all you need is a triangle, or 3 vertices of it. I'd guess these would be 3 points on the terrain, you initially find the edge vectors:-
vector3 edgeA= v2 - v1
vector3 edgeB= v3 - v1

to get the actual normal use cross product command
cross product vector3 normal, edgeA, edgeB

I suppose then you might want to normalise it, but i suppose that depends what you want to do with it.

Specs:- 1GHZ athlon, Radeon8500, 192mb ram, winxp
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