ok so really basic here. I created a scene with a simple box. I then created a cull state and set it to cull CS_BACK but the wrong sides are being culled, do all of the normals in a box face in the inside by default? if so is there a simple way to flip all of the normals?
Oh, here is the code if it helps any… (well atleast the best to my memory)
...
camera.setLocation(new Vector3f(0,0,-10));
camera.LookAt( new Vector3f(0,0,0), new Vector3f(0,1,0) );
Box b = new Box("box", new Vector3f(-5,-5,-5), new Vector3f(5,5,5));
b.setModelBounds(new BoundingBox());
Texture texture = TextureManager.loadTexture("monkey.tga", Texture.MM_LINEAR_LINEAR, Texture.FM_LINEAR);
TextureState ts = display.getRenderer().createTextureState();
ts.setEnabled(true);
ts.setTexture();
rootNode.attachChild(b);
rootNode.setRenderState(ts);
rootNode.updateWorldBounds();
rootNode.updateRenderState();
...
ok i think that's basically my code... any idea's whats going on?
Normals on all of our 3d primitves face outwards. The only thing I can think of that would change thing would be if you changed windorder, or something in your camera setup.
Make sure you do a
Actually, doing it after you attach will pick up the renderstates of the root, which you probably want. Also, this should not affect face culling done with a cullstate.
Another possibility is you are expecting the wrong face to be culled? CS_BACK would cull the face away from the normal direction, so on our 3d shapes, nothing would look different unless you went inside the shape with your camera. (Try adding a cullstate to TestBoxColor as a test.)
Ok, i'll try adding the cullstate later.
right now i can see in the insides of the box. The side that is facing me is getting culled and i can see the insides of the cube.
weird huh?
here is the actual code, copy and pasted
package com;
import com.jme.app.SimpleGame;
import com.jme.bounding.BoundingBox;
import com.jme.image.Texture;
import com.jme.math.Vector3f;
import com.jme.scene.shape.Box;
import com.jme.scene.state.CullState;
import com.jme.scene.state.TextureState;
import com.jme.util.TextureManager;
public class BasicWorld extends SimpleGame {
protected void simpleInitGame() {
display.setTitle("Basic World");
cam.setLocation(new Vector3f(0,0, 10));
cam.lookAt(new Vector3f(0,0,0), new Vector3f(0,1,0));
Box box = new Box("box", new Vector3f(-1, 1, -1), new Vector3f(1,-1,1));
box.setModelBound(new BoundingBox());
box.updateModelBound();
Texture texture = TextureManager.loadTexture("Monkey.tga", Texture.MM_LINEAR_LINEAR, Texture.FM_LINEAR);
TextureState ts = display.getRenderer().createTextureState();
ts.setEnabled(true);
ts.setTexture(texture);
CullState cull = display.getRenderer().createCullState();
cull.setEnabled(true);
cull.setCullMode(CullState.CS_BACK);
rootNode.attachChild(box);
rootNode.setRenderState(ts);
rootNode.setRenderState(cull);
}
public static void main(String[] args){
BasicWorld app = new BasicWorld();
app.setDialogBehaviour(ALWAYS_SHOW_PROPS_DIALOG);
app.start();
}
}
edit: ok problem solved!!
It seems that it matters which vector is the min and which is the max for defining a box. Weird huh? When i switch my min and max everything works fine. :roll:
Ah, you built an inside out box 
…reminds me of that movie where people get turned inside-out. 