Ortho units != pixel units

Troubleshooting graphics
1

hi there,



i want to display an image in a HUD. the problem is that the image displayed is smaller than the original image (which is not the desired/expected behaviour).



here's the source image: http://moenia.sourceforge.net/images/screenshots/source.png

…and here's the result: http://moenia.sourceforge.net/images/screenshots/result.png



…which i would expect to be the same size as the source.



here's a test case:


import com.jme.app.SimpleGame;
import com.jme.image.Texture;
import com.jme.renderer.Renderer;
import com.jme.scene.Spatial;
import com.jme.scene.shape.Quad;
import com.jme.scene.state.AlphaState;
import com.jme.scene.state.LightState;
import com.jme.scene.state.TextureState;
import com.jme.system.DisplaySystem;
import com.jme.util.TextureManager;

public class TestCase extends SimpleGame {

  protected void simpleInitGame() {
    Texture texture = TextureManager.loadTexture("source.png", Texture.MM_LINEAR,
        Texture.FM_LINEAR);
    int imageWidth = texture.getImage().getWidth(), imageHeight = texture.getImage().getHeight();
   
    Quad imageQuad = new Quad("image.quad", imageWidth, imageHeight);
    imageQuad.setRenderQueueMode(Renderer.QUEUE_ORTHO);
    imageQuad.setCullMode(Spatial.CULL_NEVER);
    imageQuad.setLightCombineMode(LightState.OFF);

    TextureState textureState = DisplaySystem.getDisplaySystem().getRenderer()
    .createTextureState();
    textureState.setTexture(texture);
    textureState.setEnabled(true);
    imageQuad.setRenderState(textureState);
   
    AlphaState alpha = DisplaySystem.getDisplaySystem().getRenderer().createAlphaState();
    alpha.setSrcFunction(AlphaState.SB_SRC_ALPHA);
    alpha.setDstFunction(AlphaState.DB_ONE_MINUS_SRC_ALPHA);
    alpha.setTestFunction(AlphaState.TF_GREATER);
    alpha.setBlendEnabled(true);
    imageQuad.setRenderState(alpha);
   
    imageQuad.getLocalTranslation().set(display.getWidth() / 2, display.getHeight() / 2, 0);
   
    rootNode.attachChild(imageQuad);
   
    rootNode.updateRenderState();
    rootNode.updateGeometricState(0, true);
   
  }

  public static void main(String[] args) {
    TestCase app = new TestCase();
    app.setDialogBehaviour(FIRSTRUN_OR_NOCONFIGFILE_SHOW_PROPS_DIALOG);
    app.start();
  }

}



am i mistaking when i assume that "1 ortho unit" == "1 pixel unit" ?
i'd be very glad for any hint.
2

ah, sorry. i missed that "texture sizes have to be powers of 2".  :smiley:

my fault.