the normals are correct. if i disable the bump & normal mapping, the error is gone (and so are the bumps, of course)
i still bet on the tex coords being the culprit.
i tried modifying the fragment test and made it use the original tex coords instead of creating different ones and got a similar error. the lighting wasn't a circle anymore, but a line.
i modified the test which now reproduces the error just by changing the texture coords:
/*
* Copyright (c) 2003-2006 jMonkeyEngine
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* modification, are permitted provided that the following conditions are
* met:
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* * Redistributions of source code must retain the above copyright
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* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package jmetest.renderer.state;
import java.nio.FloatBuffer;
import java.util.logging.Logger;
import com.jme.app.SimpleGame;
import com.jme.image.Texture;
import com.jme.light.PointLight;
import com.jme.math.FastMath;
import com.jme.math.Vector3f;
import com.jme.renderer.ColorRGBA;
import com.jme.scene.SceneElement;
import com.jme.scene.SharedNode;
import com.jme.scene.SharedMesh;
import com.jme.scene.shape.Quad;
import com.jme.scene.state.CullState;
import com.jme.scene.state.FragmentProgramState;
import com.jme.scene.state.TextureState;
import com.jme.scene.state.VertexProgramState;
import com.jme.util.TextureManager;
import com.jme.util.geom.BufferUtils;
/**
* Demonstrates the use of the GL_ARB_fragment_program extension in jME. Uses a parallax
* mapping technique outlined in the paper "Parallax Mapping with Offset Limiting:
* A PerPixel Approximation of Uneven Surfaces".
* @author Eric Woroshow
* @version $Id: TestFragmentProgramState.java,v 1.11 2007/08/21 20:11:07 nca Exp $
*/
public class TestFragmentProgramState extends SimpleGame {
private static final Logger logger = Logger
.getLogger(TestFragmentProgramState.class.getName());
private final static String BRICK_TEX = "jmetest/data/images/rockwall2.jpg";
private final static String BRICK_HEIGHT = "jmetest/data/images/rockwall_height2.jpg";
private final static String BRICK_NRML = "jmetest/data/images/rockwall_normal2.jpg";
private final static String BRICK_VP = "jmetest/data/images/bump_parallax.vp";
private final static String BRICK_FP = "jmetest/data/images/bump_parallax.fp";
/** Light positioning */
private float angle0 = 0.0f, angle1 = 0.0f;
/**
* Entry point for the test.
* @param args command line arguments; unused
*/
public static void main(String[] args) {
TestFragmentProgramState app = new TestFragmentProgramState();
app.setDialogBehaviour(ALWAYS_SHOW_PROPS_DIALOG);
app.start();
}
private void initLights( ) {
//Set up two lights in the scene
PointLight light0 = new PointLight();
light0.setDiffuse(new ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f));
light0.setLocation(new Vector3f(2f, 4f, 1f));
light0.setEnabled(true);
PointLight light1 = new PointLight();
light1.setDiffuse(new ColorRGBA(1.0f, 0.5f, 0.0f, 1.0f));
light1.setLocation(new Vector3f(2f, 2f, 1f));
light1.setEnabled(true);
lightState.detachAll();
lightState.setEnabled(true);
lightState.attach(light0);
lightState.attach(light1);
lightState.setGlobalAmbient(new ColorRGBA(0,0,0,1));
rootNode.setRenderState(lightState);
}
protected void simpleInitGame() {
//Set up cull state
CullState cs = display.getRenderer().createCullState();
cs.setCullMode(CullState.CS_BACK);
cs.setEnabled(true);
//Basic brick texture
TextureState brick = display.getRenderer().createTextureState();
Texture tex = TextureManager.loadTexture(
TestFragmentProgramState.class.getClassLoader().getResource(BRICK_TEX),
Texture.MM_LINEAR_LINEAR,
Texture.FM_LINEAR);
tex.setWrap(Texture.WM_WRAP_S_WRAP_T);
//Height map of the brick wall
Texture height = TextureManager.loadTexture(
TestFragmentProgramState.class.getClassLoader().getResource(BRICK_HEIGHT),
Texture.MM_LINEAR_LINEAR,
Texture.FM_LINEAR);
height.setWrap(Texture.WM_WRAP_S_WRAP_T);
//Normal map of the brick wall
Texture normal = TextureManager.loadTexture(
TestFragmentProgramState.class.getClassLoader().getResource(BRICK_NRML),
Texture.MM_LINEAR_LINEAR,
Texture.FM_LINEAR);
normal.setWrap(Texture.WM_WRAP_S_WRAP_T);
brick.setTexture(tex, 0);
brick.setTexture(normal, 1);
brick.setTexture(height, 2);
brick.setEnabled(true);
VertexProgramState vert = display.getRenderer().createVertexProgramState();
FragmentProgramState frag = display.getRenderer().createFragmentProgramState();
//Ensure the extensions are supported, else exit immediately
if (!vert.isSupported() || !frag.isSupported()) {
logger.severe("Your graphics card does not support vertex or fragment programs, and thus cannot run this test.");
quit();
}
//Load vertex program
vert.load(TestFragmentProgramState.class.getClassLoader().getResource(BRICK_VP));
vert.setEnabled(true);
//Load fragment program
frag.load(TestFragmentProgramState.class.getClassLoader().getResource(BRICK_FP));
frag.setEnabled(true);
Quad q = new Quad("wall", 10f, 10f);
//Set up textures
q.setRenderState(brick);
if (false) {//some tex coord magic is going on here
FloatBuffer tex1 = BufferUtils.createVector2Buffer(4);
for (int x = 0; x < 4; x++)
tex1.put(1.0f).put(0.0f);
q.setTextureBuffer(0, tex1, 1);
FloatBuffer tex2 = BufferUtils.createVector2Buffer(4);
for (int x = 0; x < 4; x++)
tex2.put(0.0f).put(1.0f);
q.setTextureBuffer(0, tex2, 2);
} else {
q.setTextureBuffer(0, q.getTextureBuffer(0, 0), 1);
q.setTextureBuffer(0, q.getTextureBuffer(0, 0), 2);
}
//Set up ARB programs
q.setRenderState(vert);
q.setRenderState(frag);
q.setRenderState(cs);
initLights();
for (int i = 0;i<10;i++)
{
for (int j = 0;j<10;j++)
{
final SharedMesh l_mesh = new SharedMesh("", q);
l_mesh.getLocalTranslation().addLocal(j*10,i*10,0);
rootNode.attachChild(l_mesh);
}
}
rootNode.setCullMode(SceneElement.CULL_NEVER);
}
protected void simpleUpdate() {
angle0 += 2 * tpf;
angle1 += 4 * tpf;
((PointLight)lightState.get(0)).setLocation(new Vector3f(2.0f * FastMath.cos(angle0), 2.0f * FastMath.sin(angle0), 1.5f));
((PointLight)lightState.get(1)).setLocation(new Vector3f(2.0f * FastMath.cos(angle1), 2.0f * FastMath.sin(angle1), 1.5f));
}
}
