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  LWJGL Frustum clipping issues  (Read 502 times)
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Offline CJLetsGame

Junior Newbie





« Posted 2014-04-01 00:16:42 »

Images attached below.

The right and top bounds of the frustum seem to be working correctly, however the further left/up I look, the more the cubes that are supposed to be visible are clipped.
The first image isn't clipping any visible cubes just as expected.
Right now Im using a Frustum class(slightly modified) I found online as well as a Camera class I found online.

Frustum original:
http://www.java-gaming.org/index.php?action=pastebin&hex=83b53604950

Frustum Modified code
http://pastebin.java-gaming.org/3e9ac0d9d86

Camera relevant code
http://pastebin.java-gaming.org/e9acd1d968b

World Rendering(camera.apply(); is being called before this as well as setting the shader)
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public void draw() {
      for (int x = 0; x < width(); x++)
      {
         for (int y = 0; y < height(); y++)
         {
            for (int z = 0; z < depth(); z++)
            {
               if (blocks[x][y][z] != null)
               {
                  if (Window.frustum.cubeInFrustum(x * 8, y * 8, z * 8, 8))
                  {
                     Renderer3D.drawCube(x * 16, y * 16, z * 16, 16, 16, 16, BlockRegistry.getBlock(blocks[x][y][z]).texture);
                  }
               }
            }
         }
      }
   }

 Looks like it depends on the angle im looking at it. If I look at one side, everything looks completely fine. Now Im thinking it's the projection matrix that's messed up somehow.

http://postimg.org/image/5ee89b2pn/
http://postimg.org/image/poswybwkf/
Offline matheus23

JGO Kernel


Medals: 114
Projects: 3


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« Reply #1 - Posted 2014-04-01 20:17:50 »

I haven't got the time to look at all those source files, but are you sure this line
1  
Window.frustum.cubeInFrustum(x * 8, y * 8, z * 8, 8)
shouldn't actually be
1  
Window.frustum.cubeInFrustum(x * 16, y * 16, z * 16, 8)
? Smiley

See my:
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Offline CJLetsGame

Junior Newbie





« Reply #2 - Posted 2014-04-01 20:49:43 »

Thank you. It's always something simple Smiley
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Offline matheus23

JGO Kernel


Medals: 114
Projects: 3


You think about my Avatar right now!


« Reply #3 - Posted 2014-04-02 14:05:20 »

Thank you. It's always something simple Smiley

Uh... huh, I guess that was a really lucky shot Cheesy

See my:
    My development Blog:     | Or look at my RPG | Or simply my coding
http://matheusdev.tumblr.comRuins of Revenge  |      On Github
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