I was running into some really big problems with getting a simple shadow texture on a quad to display. It ran fine, but the quad was always coming up as solid black. I was referencing the HelloMaterial tutorial heavily for guidance, and in frustration, decided to play with some more simple things in a smaller app.
What I ran into was somewhat interesting. If I took the code from HelloMaterial (on the wiki) and commented out all of boxshape1's code, and placed boxshape3 at the end of the code (after the shiny rock code block), suddenly, the transparent effect of boxshape3's png is gone! The area that should be transparent is just black now. - Now, if I uncomment out boxshape1, the transparency is back!
Also, is there a reason if I place a SolidColor.j3md box behind the transparent texture'd boxshape3 between it and the shiny rock, the SolidColor'd box is not viewable through the boxshape3's transparent 'window?'
Sorta confused. Code below.
Running on a nVidia Quadro 1600M on jME nightly build 7-16-2010.
UPDATE: Updated video card drivers to latest version, and updated to latest jME3 nightly build of 08-05-2010. Problem persists. I'll hit a regular Joe Schmo machine with a Geforce 8800GT tonight to check again.
UPDATE2: Checked on GeForce 8800GT, same problem. Took some screenshots this time. See attached.
package hello06;
import com.jme3.app.SimpleApplication;
import com.jme3.asset.TextureKey;
import com.jme3.light.DirectionalLight;
import com.jme3.material.Material;
import com.jme3.material.RenderState.BlendMode;
import com.jme3.math.ColorRGBA;
import com.jme3.math.Vector3f;
import com.jme3.scene.Geometry;
import com.jme3.scene.shape.Box;
import com.jme3.scene.shape.Sphere;
import com.jme3.texture.Texture;
public class HelloMaterial extends SimpleApplication {
public static void main(String[] args) {
HelloMaterial app = new HelloMaterial();
app.start();
}
@Override
public void simpleInitApp() {
/** A simple textured cube -- in good MIP map quality. */
// Box boxshape1 = new Box(new Vector3f(-3f,1.1f,0f), 1f,1f,1f);
// Geometry cube = new Geometry("My Textured Box", boxshape1);
// Material mat_stl = new Material(assetManager, "Common/MatDefs/Misc/SimpleTextured.j3md");
// Texture tex_ml = assetManager.loadTexture("Interface/Logo/Monkey.jpg");
// mat_stl.setTexture("m_ColorMap", tex_ml);
// cube.setMaterial(mat_stl);
// rootNode.attachChild(cube);
/** A cube with base color "leaking" through a partially transparent texture */
Box boxshape4 = new Box(new Vector3f(3f,-1f,0f), 1f,1f,1f);
Geometry cube_leak = new Geometry("Leak-through color cube", boxshape4);
Material mat_tl = new Material(assetManager, "Common/MatDefs/Misc/ColoredTextured.j3md");
mat_tl.setTexture("m_ColorMap", assetManager.loadTexture("Textures/ColoredTex/Monkey.png"));
mat_tl.setColor("m_Color", new ColorRGBA(1f,0f,1f, 1f)); // purple
cube_leak.setMaterial(mat_tl);
rootNode.attachChild(cube_leak);
/** A bumpy rock with a shiny light effect */
Sphere rock = new Sphere(32,32, 2f);
Geometry shiny_rock = new Geometry("Shiny rock", rock);
rock.setTextureMode(Sphere.TextureMode.Projected); // better quality on spheres
TangentBinormalGenerator.generate(rock); // for lighting effect
Material mat_lit = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
mat_lit.setTexture("m_DiffuseMap", assetManager.loadTexture("Textures/Terrain/Pond/Pond.png"));
mat_lit.setTexture("m_NormalMap", assetManager.loadTexture("Textures/Terrain/Pond/Pond_normal.png"));
mat_lit.setFloat("m_Shininess", 5f); // [0,128]
shiny_rock.setMaterial(mat_lit);
shiny_rock.setLocalTranslation(0,2,-2); // Move it a bit
shiny_rock.rotate(1.6f, 0, 0); // Rotate it a bit
rootNode.attachChild(shiny_rock);
/** A translucent/transparent texture, similar to a window frame. */
Box boxshape3 = new Box(new Vector3f(0f,0f,0f), 1f,1f,0.01f);
Geometry window_frame = new Geometry("window frame", boxshape3);
Material mat_tt = new Material(assetManager, "Common/MatDefs/Misc/SimpleTextured.j3md");
mat_tt.setTexture("m_ColorMap", assetManager.loadTexture("Textures/ColoredTex/Monkey.png"));
mat_tt.getAdditionalRenderState().setBlendMode(BlendMode.Alpha);
window_frame.setMaterial(mat_tt);
rootNode.attachChild(window_frame);
/** Must add a light to make the lit object visible! */
DirectionalLight sun = new DirectionalLight();
sun.setDirection(new Vector3f(1,0,-2).normalizeLocal());
sun.setColor(ColorRGBA.White);
rootNode.addLight(sun);
}
}
