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1  Java Game APIs & Engines / OpenGL Development / LWJGL - Update VBO problem. on: 2012-12-31 04:04:09

My application doesn't work anymore when I changed graphic card, namely Transform Feedback (update VBO).

I can render all the points, but Transform feedback doesn't update the VBO. I checked also with "queryObject = GL15.glGenQueries();", 0 points stored in VBO.

Card before (Transform Feedback working)

Nvidia GTX 680

Couldn't find anything on the net about this problem.
2  Java Game APIs & Engines / OpenGL Development / Collision heightmap. on: 2012-06-16 09:34:07

I have trouble with collision detection. My heightmap have quads and each quad have two triangles. A diagonal line connects two corners in each quad. How can I determine which quad and which side of the line the character is standing on?

Plane equation: Ax+By+Cz+D=0, N=(A, B, C).

I know how to calculate Y(Height), but I need three points of the triangle (under the character).

How can I calculate?
3  Java Game APIs & Engines / OpenGL Development / Re: Framework or API? on: 2012-06-14 10:27:01
4  Java Game APIs & Engines / OpenGL Development / Re: Framework or API? on: 2012-06-14 10:21:45
And Slick2D is a Framework?

What is the difference between these?
5  Java Game APIs & Engines / OpenGL Development / Framework or API? on: 2012-06-14 10:11:50

I have one easy question, is LWJGL a Framework or just an API?

6  Java Game APIs & Engines / OpenGL Development / VBO, update vertices... on: 2012-04-12 07:19:55
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