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Bugs / Wrong normals rotations when object has a parent which is scaled
« on: October 11, 2007, 11:11:29 pm »
Hi Egon,
Please take a look on attached example, it shows how normals are modified when object has a parent and this parent is scaled.
Please take a look on attached example, it shows how normals are modified when object has a parent and this parent is scaled.
Code: [Select]
import java.awt.Color;
import com.threed.jpct.*;
public class TestSize {
public static void main(String[] args) {
World w = new World();
FrameBuffer fb = new FrameBuffer(800, 600, FrameBuffer.SAMPLINGMODE_GL_AA_2X);
fb.disableRenderer(IRenderer.RENDERER_SOFTWARE);
fb.enableRenderer(IRenderer.RENDERER_OPENGL);
Object3D Toy= Primitives.getCube(17);
TextureManager tm = TextureManager.getInstance();
Texture vt = new Texture("blue067.jpg");
tm.addTexture("uv", vt);
TextureInfo ti=new TextureInfo(tm.getTextureID("uv"));
Toy.setTexture(ti);
Toy.setEnvmapped(Object3D.ENVMAP_ENABLED);
Object3D Toy2=Toy.cloneObject();
Toy2.translate(50, 0, 0);
Toy.addChild(Toy2);
w.getCamera().moveCamera(Camera.CAMERA_MOVEOUT, 200);
w.getCamera().moveCamera(Camera.CAMERA_MOVEUP, 50);
w.setAmbientLight(250, 250, 250);
Toy.build();
w.addObject(Toy);
Toy2.build();
w.addObject(Toy2);
while(!org.lwjgl.opengl.Display.isCloseRequested()) {
fb.clear(Color.DARK_GRAY);
w.renderScene(fb);
w.draw(fb);
fb.update();
fb.displayGLOnly();
Toy.scale(1.001f);
Toy.rotateX(0.005f);
w.getCamera().lookAt(Toy2.getTransformedCenter());
try {
Thread.sleep(10);
} catch(Exception e) {}
}
fb.dispose();
}
}