- improve atlas test, display quad with atlas texture

- clamp texture coordinates to 0-1 for atlas textures to better see actual texture mapping

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9035 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/test/jme3test/tools/TestTextureAtlas.java

@@ -29,10 +29,8 @@
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
 package jme3test.tools;
 
-import jme3test.model.shape.*;
 import com.jme3.app.SimpleApplication;
 import com.jme3.asset.plugins.ZipLocator;
 import com.jme3.light.AmbientLight;
@@ -41,21 +39,23 @@ import com.jme3.math.ColorRGBA;
 import com.jme3.math.Vector3f;
 import com.jme3.scene.Geometry;
 import com.jme3.scene.Spatial;
+import com.jme3.scene.shape.Quad;
 import jme3tools.optimize.GeometryBatchFactory;
 
 public class TestTextureAtlas extends SimpleApplication {
 
-    public static void main(String[] args){
+    public static void main(String[] args) {
         TestTextureAtlas app = new TestTextureAtlas();
         app.start();
     }
 
     @Override
     public void simpleInitApp() {
-        assetManager.registerLocator("wildhouse.zip", ZipLocator.class.getName());
+        flyCam.setMoveSpeed(50);
+        assetManager.registerLocator("town.zip", ZipLocator.class.getName());
         Spatial scene = assetManager.loadModel("main.scene");
 
-        Geometry geom = GeometryBatchFactory.makeAtlasBatch(scene, assetManager, 4096);
+        Geometry geom = GeometryBatchFactory.makeAtlasBatch(scene, assetManager, 2048);
 
         AmbientLight al = new AmbientLight();
         rootNode.addLight(al);
@@ -66,6 +66,11 @@ public class TestTextureAtlas extends SimpleApplication {
         rootNode.addLight(sun);
 
         rootNode.attachChild(geom);
-    }
 
+        //quad to display material
+        Geometry box = new Geometry("displayquad", new Quad(4, 4));
+        box.setMaterial(geom.getMaterial());
+        box.setLocalTranslation(0, 1, 0);
+        rootNode.attachChild(box);
+    }
 }

engine/src/tools/jme3tools/optimize/GeometryBatchFactory.java

@@ -352,9 +352,6 @@ public class GeometryBatchFactory {
         Geometry geom = new Geometry();
         Mesh mesh = new Mesh();
         mergeGeometries(geometries, mesh, atlas);
-        TangentBinormalGenerator.generate(mesh);
-        mesh.updateCounts();
-        mesh.updateBound();
         geom.setMesh(mesh);
 
         Material mat = new Material(mgr, "Common/MatDefs/Light/Lighting.j3md");
@@ -365,6 +362,7 @@ public class GeometryBatchFactory {
             mat.setTexture("DiffuseMap", diffuseMap);
         }
         if (normalMap != null) {
+            TangentBinormalGenerator.generate(mesh);
             mat.setTexture("NormalMap", normalMap);
         }
         if (specularMap != null) {

engine/src/tools/jme3tools/optimize/TextureAtlas.java

@@ -151,7 +151,6 @@ public class TextureAtlas {
     }
 
     private void drawImage(Image source, int x, int y, String mapName) {
-        //TODO: all buffers?
         if (images == null) {
             images = new HashMap<String, byte[]>();
         }
@@ -160,6 +159,7 @@ public class TextureAtlas {
             image = new byte[atlasWidth * atlasHeight * 4];
             images.put(mapName, image);
         }
+        //TODO: all buffers?
         ByteBuffer sourceData = source.getData(0);
         int height = source.getHeight();
         int width = source.getWidth();
@@ -174,13 +174,13 @@ public class TextureAtlas {
                     image[i + 3] = sourceData.get(j + 3); //r
                 } else if (source.getFormat() == Format.BGR8) {
                     int j = (xPos + yPos * width) * 3;
-                    image[i] = 0; //b
+                    image[i] = 0; //a
                     image[i + 1] = sourceData.get(j); //b
                     image[i + 2] = sourceData.get(j + 1); //g
                     image[i + 3] = sourceData.get(j + 2); //r
                 } else if (source.getFormat() == Format.RGB8) {
                     int j = (xPos + yPos * width) * 3;
-                    image[i] = 0; //b
+                    image[i] = 0; //a
                     image[i + 1] = sourceData.get(j + 2); //b
                     image[i + 2] = sourceData.get(j + 1); //g
                     image[i + 3] = sourceData.get(j); //r
@@ -322,8 +322,23 @@ public class TextureAtlas {
             float w = (float) getWidth() / (float) atlasWidth;
             float h = (float) getHeight() / (float) atlasHeight;
             Vector2f location = new Vector2f(x, y);
-            Vector2f scale = new Vector2f(w, h);
-            return location.addLocal(previousLocation.multLocal(scale));
+            float prevX = previousLocation.x;
+            float prevY = previousLocation.y;
+            //TODO: remove workaround for texture wrap
+            if (prevX > 1) {
+                prevX = 1;
+            }
+            if (prevY > 1) {
+                prevY = 1;
+            }
+            if (prevX < 0) {
+                prevX = 0;
+            }
+            if (prevY < 0) {
+                prevY = 0;
+            }
+            location.addLocal(prevX * w, prevY * h);
+            return location;
         }
 
         /**
@@ -342,9 +357,10 @@ public class TextureAtlas {
             for (int i = 0; i < inBuf.capacity() / 2; i++) {
                 tex.x = inBuf.get(i * 2 + 0);
                 tex.y = inBuf.get(i * 2 + 1);
-                Vector2f outLoc = getLocation(tex);
-                outBuf.put(offset + i * 2 + 0, outLoc.x);
-                outBuf.put(offset + i * 2 + 1, outLoc.y);
+                Vector2f location = getLocation(tex);
+                //TODO: replace with proper texture wrapping for atlases..
+                outBuf.put(offset + i * 2 + 0, location.x);
+                outBuf.put(offset + i * 2 + 1, location.y);
             }
         }