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Truevision3D >> TV3D SDK >> TV3D SDK 6.3 (Moderators: Waterman, Mithrandir_, beyonder, ZaPPZion) >> @Chroma (buggy demo?)
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JeffWeber
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Posts: 1023
« on: March 10, 2003, 07:41:04 PM »
@Chroma,

Could explain a little bit how you are doing the landscape collisions for your buggy demo.   Are you using the TriList collision stuff in ODE? If not, how exactly are you detecting the collisions of the Sphere geoms with the tv3d landscape?

-jeff
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""Space is deep, Man is small and Time is his relentless enemy" --Orson Scott Card
Chroma
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Posts: 173
« Reply #1 on: March 11, 2003, 10:31:40 AM »
No I dont use the Tricollider, u'll have to create a new collider class.

I'm using Delphi but u can find the source code here:
http://www.clancommunity.com/chroma/Delphi_TV_ODE.zip

Check the demo Buggy+Landscape and look at the function "CustomColliderFnSphere". It will show u how to generate contact points for a sphere colliding a heightmap.
There is also some code to collide a box against a heightmap.

Hope this helps..

Chroma
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JeffWeber
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Posts: 1023
« Reply #2 on: March 11, 2003, 02:25:29 PM »
Ok, so I see you created a custom extenstion to ODE.  I don't have Delphi, so I can't see your function.  Would you mind posting that function?

If that's a problem that's ok, I think I should be able to figure it out.

-jeff
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""Space is deep, Man is small and Time is his relentless enemy" --Orson Scott Card
Chroma
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Posts: 173
« Reply #3 on: March 11, 2003, 02:54:24 PM »
just open the Main.pas file in notepad or something like that Smiley
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Chroma
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Posts: 173
« Reply #4 on: March 11, 2003, 02:57:09 PM »
U can get the file here: http://www.clancommunity.com/chroma/Main.pas

Be sure your normals are correct, u might need to invert them if u are using RC3 and the landscape normals.
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JeffWeber
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« Reply #5 on: March 11, 2003, 03:08:00 PM »
k, thanks
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""Space is deep, Man is small and Time is his relentless enemy" --Orson Scott Card
denisnovak
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Posts: 47
« Reply #6 on: March 12, 2003, 08:20:53 AM »
To: Chroma

I use Delphi for programing and I download Delphi_TV_ODE.zip. Everything works o.k, except  Buggy+Landscape. Buggy doesn't stop on landscape surface (dropping down?). What is wrong?

Denis
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Slider
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Posts: 1135
« Reply #7 on: March 12, 2003, 09:06:41 AM »
Quote
I use Delphi for programing and I download Delphi_TV_ODE.zip. Everything works o.k, except Buggy+Landscape. Buggy doesn't stop on landscape surface (dropping down?). What is wrong?


Same problem here  :roll:
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Helping retards through life since 1981
Chroma
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Posts: 173
« Reply #8 on: March 12, 2003, 09:24:23 AM »
Your landscape normals are inverted.
Try to change them in the ColliderFormulaNormal function.
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Chroma
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Posts: 173
« Reply #9 on: March 13, 2003, 11:46:01 AM »
For information, someone in the ODE mailing list released a piece of code to handle Sphere/heightmap collision.
U can find his code here: http://q12.org/pipermail/ode/2003-March/003641.html
I havent looked at it yet, but i will try to include it in the ode.dll and make some test.
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