Documented com.jme3.water and com.jme3.post.ssao

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7630 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/desktop-fx/com/jme3/post/ssao/SSAOFilter.java

@@ -51,8 +51,12 @@ import java.io.IOException;
 import java.util.ArrayList;
 
 /**
- *
+ * SSAO stands for screen space ambient occlusion
- * @author nehon
+ * It's a technique that fake ambient lighting by computind shadows that near by objects would casts on each others 
+ * under the effect of an ambient light
+ * more info on this in this blog post http://jmonkeyengine.org/2010/08/16/screen-space-ambient-occlusion-for-jmonkeyengine-3-0/
+ * 
+ * @author Rémy Bouquet aka Nehon
  */
 public class SSAOFilter extends Filter {
 
@@ -68,8 +72,8 @@ public class SSAOFilter extends Filter {
     private boolean useAo = true;
     private Material ssaoMat;
     private Pass ssaoPass;
-    private Material downSampleMat;
+//    private Material downSampleMat;
-    private Pass downSamplePass;
+//    private Pass downSamplePass;
     private float downSampleFactor = 1f;
 
     /**
@@ -80,12 +84,11 @@ public class SSAOFilter extends Filter {
     }
 
     /**
-     *
+     * Create a Screen Space Ambiant Occlusion Filter
-     * @param vp
+     * @param sampleRadius The radius of the area where random samples will be picked. default 5.1f
-     * @param sampleRadius
+     * @param intensity intensity of the resulting AO. default 1.2f
-     * @param intensity
+     * @param scale distance between occluders and occludee. default 0.2f
-     * @param scale
+     * @param bias the width of the occlusion cone considered by the occludee. default 0.1f
-     * @param bias
      */
     public SSAOFilter(float sampleRadius, float intensity, float scale, float bias) {
         this();
@@ -123,7 +126,7 @@ public class SSAOFilter extends Filter {
         postRenderPasses = new ArrayList<Pass>();
 
         normalPass = new Pass();
-        normalPass.init(renderManager.getRenderer(), (int)(screenWidth / downSampleFactor), (int)(screenHeight / downSampleFactor), Format.RGBA8, Format.Depth);
+        normalPass.init(renderManager.getRenderer(), (int) (screenWidth / downSampleFactor), (int) (screenHeight / downSampleFactor), Format.RGBA8, Format.Depth);
 
 
         frustumNearFar = new Vector2f();
@@ -153,7 +156,7 @@ public class SSAOFilter extends Filter {
             }
         };
 
-        ssaoPass.init(renderManager.getRenderer(), (int)(screenWidth / downSampleFactor), (int)(screenHeight / downSampleFactor), Format.RGBA8, Format.Depth, 1, ssaoMat);
+        ssaoPass.init(renderManager.getRenderer(), (int) (screenWidth / downSampleFactor), (int) (screenHeight / downSampleFactor), Format.RGBA8, Format.Depth, 1, ssaoMat);
         ssaoPass.getRenderedTexture().setMinFilter(Texture.MinFilter.Trilinear);
         ssaoPass.getRenderedTexture().setMagFilter(Texture.MagFilter.Bilinear);
         postRenderPasses.add(ssaoPass);
@@ -180,10 +183,19 @@ public class SSAOFilter extends Filter {
 
     }
 
+    /**
+     * Return the bias<br>
+     * see {@link  setBias(float bias)}
+     * @return 
+     */
     public float getBias() {
         return bias;
     }
 
+    /**
+     * Sets the the width of the occlusion cone considered by the occludee default is 0.1f
+     * @param bias 
+     */
     public void setBias(float bias) {
         this.bias = bias;
         if (ssaoMat != null) {
@@ -191,10 +203,18 @@ public class SSAOFilter extends Filter {
         }
     }
 
+    /**
+     * returns the ambient occlusion intensity
+     * @return 
+     */
     public float getIntensity() {
         return intensity;
     }
 
+    /**
+     * Sets the Ambient occlusion intensity default is 1.2f
+     * @param intensity 
+     */
     public void setIntensity(float intensity) {
         this.intensity = intensity;
         if (ssaoMat != null) {
@@ -203,10 +223,19 @@ public class SSAOFilter extends Filter {
 
     }
 
+    /**
+     * returns the sample radius<br>
+     * see {link setSampleRadius(float sampleRadius)}
+     * @return 
+     */
     public float getSampleRadius() {
         return sampleRadius;
     }
 
+    /**
+     * Sets the radius of the area where random samples will be picked dafault 5.1f     
+     * @param sampleRadius 
+     */
     public void setSampleRadius(float sampleRadius) {
         this.sampleRadius = sampleRadius;
         if (ssaoMat != null) {
@@ -215,22 +244,39 @@ public class SSAOFilter extends Filter {
 
     }
 
+    /**
+     * returns the scale<br>
+     * see {@link setScale(float scale)}
+     * @return 
+     */
     public float getScale() {
         return scale;
     }
 
+    /**
+     * 
+     * Returns the distance between occluders and occludee. dafault 0.2f
+     * @param scale 
+     */
     public void setScale(float scale) {
         this.scale = scale;
         if (ssaoMat != null) {
             ssaoMat.setFloat("Scale", scale);
         }
-
     }
 
+    /**
+     * debugging only , will be removed
+     * @return 
+     */
     public boolean isUseAo() {
         return useAo;
     }
 
+    /**
+     * debugging only , will be removed
+     * @return 
+     */
     public void setUseAo(boolean useAo) {
         this.useAo = useAo;
         if (material != null) {
@@ -239,10 +285,18 @@ public class SSAOFilter extends Filter {
 
     }
 
+    /**
+     * debugging only , will be removed
+     * @return 
+     */
     public boolean isUseOnlyAo() {
         return useOnlyAo;
     }
 
+    /**
+     * debugging only , will be removed
+     * @return 
+     */
     public void setUseOnlyAo(boolean useOnlyAo) {
         this.useOnlyAo = useOnlyAo;
         if (material != null) {
@@ -269,6 +323,4 @@ public class SSAOFilter extends Filter {
         scale = ic.readFloat("scale", 0.2f);
         bias = ic.readFloat("bias", 0.1f);
     }
-
-
 }

engine/src/desktop-fx/com/jme3/water/ReflectionProcessor.java

@@ -24,6 +24,12 @@ public class ReflectionProcessor implements SceneProcessor {
     private FrameBuffer reflectionBuffer;
     private Plane reflectionClipPlane;
 
+    /**
+     * Creates a ReflectionProcessor
+     * @param reflectionCam the cam to use for reflection
+     * @param reflectionBuffer the FrameBuffer to render to
+     * @param reflectionClipPlane the clipping plane
+     */
     public ReflectionProcessor(Camera reflectionCam, FrameBuffer reflectionBuffer, Plane reflectionClipPlane) {
         this.reflectionCam = reflectionCam;
         this.reflectionBuffer = reflectionBuffer;
@@ -67,26 +73,52 @@ public class ReflectionProcessor implements SceneProcessor {
     public void cleanup() {
     }
 
+    /**
+     * Internal use only<br>
+     * returns the frame buffer
+     * @return 
+     */
     public FrameBuffer getReflectionBuffer() {
         return reflectionBuffer;
     }
 
+    /**
+     * Internal use only<br>
+     * sets the frame buffer
+     * @param reflectionBuffer 
+     */
     public void setReflectionBuffer(FrameBuffer reflectionBuffer) {
         this.reflectionBuffer = reflectionBuffer;
     }
 
+    /**
+     * returns the reflection cam
+     * @return 
+     */
     public Camera getReflectionCam() {
         return reflectionCam;
     }
 
+    /**
+     * sets the reflection cam
+     * @param reflectionCam 
+     */
     public void setReflectionCam(Camera reflectionCam) {
         this.reflectionCam = reflectionCam;
     }
 
+    /**
+     * returns the reflection clip plane
+     * @return 
+     */
     public Plane getReflectionClipPlane() {
         return reflectionClipPlane;
     }
 
+    /**
+     * Sets the reflection clip plane
+     * @param reflectionClipPlane 
+     */
     public void setReflectionClipPlane(Plane reflectionClipPlane) {
         this.reflectionClipPlane = reflectionClipPlane;
     }

engine/src/desktop-fx/com/jme3/water/SimpleWaterProcessor.java

@@ -51,16 +51,46 @@ import com.jme3.scene.Spatial;
 import com.jme3.scene.shape.Quad;
 import com.jme3.texture.FrameBuffer;
 import com.jme3.texture.Image.Format;
-import com.jme3.texture.Texture.MagFilter;
-import com.jme3.texture.Texture.MinFilter;
 import com.jme3.texture.Texture.WrapMode;
 import com.jme3.texture.Texture2D;
 import com.jme3.ui.Picture;
-import com.jme3.util.TempVars;
 
 /**
  *
- * @author normenhansen
+ * Simple Water renders a simple plane that use reflection and refraction to look like water.
+ * It's pretty basic, but much faster than the WaterFilter
+ * It's useful if you aim low specs hardware and still want a good looking water.
+ * Usage is : 
+ * <code>
+ *      SimpleWaterProcessor waterProcessor = new SimpleWaterProcessor(assetManager);
+ *      //setting the scene to use for reflection
+ *      waterProcessor.setReflectionScene(mainScene);
+ *      //setting the light position
+ *      waterProcessor.setLightPosition(lightPos);
+ *      
+ *      //setting the water plane
+ *      Vector3f waterLocation=new Vector3f(0,-20,0);
+ *      waterProcessor.setPlane(new Plane(Vector3f.UNIT_Y, waterLocation.dot(Vector3f.UNIT_Y)));
+ *      //setting the water color 
+ *      waterProcessor.setWaterColor(ColorRGBA.Brown);
+ *
+ *      //creating a quad to render water to
+ *      Quad quad = new Quad(400,400);
+ *
+ *      //the texture coordinates define the general size of the waves
+ *      quad.scaleTextureCoordinates(new Vector2f(6f,6f));
+ *
+ *      //creating a geom to attach the water material 
+ *      Geometry water=new Geometry("water", quad);
+ *      water.setLocalTranslation(-200, -20, 250);
+ *      water.setLocalRotation(new Quaternion().fromAngleAxis(-FastMath.HALF_PI, Vector3f.UNIT_X));
+ *      //finally setting the material
+ *      water.setMaterial(waterProcessor.getMaterial());
+ *    
+ *      //attaching the water to the root node
+ *      rootNode.attachChild(water);
+ * </code>
+ * @author Normen Hansen & Rémy Bouquet
  */
 public class SimpleWaterProcessor implements SceneProcessor {
 
@@ -100,6 +130,10 @@ public class SimpleWaterProcessor implements SceneProcessor {
     private Vector3f vect2 = new Vector3f();
     private Vector3f vect3 = new Vector3f();
 
+    /**
+     * Creates a SimpleWaterProcessor
+     * @param manager the asset manager
+     */
     public SimpleWaterProcessor(AssetManager manager) {
         this.manager = manager;
         material = new Material(manager, "Common/MatDefs/Water/SimpleWater.j3md");
@@ -312,10 +346,18 @@ public class SimpleWaterProcessor implements SceneProcessor {
         reflectionScene = spat;
     }
 
+    /**
+     * returns the width of the reflection and refraction textures
+     * @return 
+     */
     public int getRenderWidth() {
         return renderWidth;
     }
 
+    /**
+     * returns the height of the reflection and refraction textures
+     * @return 
+     */
     public int getRenderHeight() {
         return renderHeight;
     }
@@ -331,6 +373,10 @@ public class SimpleWaterProcessor implements SceneProcessor {
         renderHeight = height;
     }
 
+    /**
+     * returns the water plane
+     * @return 
+     */
     public Plane getPlane() {
         return plane;
     }
@@ -390,14 +436,26 @@ public class SimpleWaterProcessor implements SceneProcessor {
         material.setFloat("waterDepth", depth);
     }
 
+    /**
+     * return the water depth
+     * @return 
+     */
     public float getWaterDepth() {
         return waterDepth;
     }
 
+    /**
+     * returns water transparency
+     * @return 
+     */
     public float getWaterTransparency() {
         return waterTransparency;
     }
 
+    /**
+     * sets the water transparency default os 0.1f
+     * @param waterTransparency 
+     */
     public void setWaterTransparency(float waterTransparency) {
         this.waterTransparency = Math.max(0, waterTransparency);
         material.setFloat("waterTransparency", waterTransparency / 10);
@@ -434,10 +492,18 @@ public class SimpleWaterProcessor implements SceneProcessor {
         material.setColor("texScale", new ColorRGBA(value, value, value, value));
     }
 
+    /**
+     * retruns true if the waterprocessor is in debug mode
+     * @return 
+     */
     public boolean isDebug() {
         return debug;
     }
 
+    /**
+     * set to true to display reflection and refraction textures in the GUI for debug purpose
+     * @param debug 
+     */
     public void setDebug(boolean debug) {
         this.debug = debug;
     }

engine/src/desktop-fx/com/jme3/water/WaterFilter.java

@@ -46,7 +46,6 @@ import com.jme3.post.Filter;
 import com.jme3.post.Filter.Pass;
 import com.jme3.renderer.Camera;
 import com.jme3.renderer.RenderManager;
-import com.jme3.renderer.Renderer;
 import com.jme3.renderer.ViewPort;
 import com.jme3.scene.Node;
 import com.jme3.scene.Spatial;
@@ -57,8 +56,12 @@ import com.jme3.util.TempVars;
 import java.io.IOException;
 
 /**
- *
+ * The WaterFilter is a 2D post process that simulate water.
- * @author nehon
+ * It renders water above and under water.
+ * See this blog post for more info http://jmonkeyengine.org/2011/01/15/new-advanced-water-effect-for-jmonkeyengine-3/
+ * 
+ * 
+ * @author Rémy Bouquet aka Nehon
  */
 public class WaterFilter extends Filter {
 
@@ -805,10 +808,18 @@ public class WaterFilter extends Filter {
 
     }
 
+    /**
+     * returns true if the water use the refraction
+     * @return 
+     */
     public boolean isUseRefraction() {
         return useRefraction;
     }
 
+    /**
+     * set to true to use refraction (default is true)
+     * @param useRefraction 
+     */
     public void setUseRefraction(boolean useRefraction) {
         this.useRefraction = useRefraction;
         if (material != null) {
@@ -817,10 +828,19 @@ public class WaterFilter extends Filter {
 
     }
 
+    /**
+     * returns true if the ater use ripples
+     * @return 
+     */
     public boolean isUseRipples() {
         return useRipples;
     }
 
+    /**
+     * 
+     * Set to true tu use ripples
+     * @param useRipples 
+     */
     public void setUseRipples(boolean useRipples) {
         this.useRipples = useRipples;
         if (material != null) {
@@ -829,10 +849,18 @@ public class WaterFilter extends Filter {
 
     }
 
+    /**
+     * returns true if the water use specular
+     * @return 
+     */
     public boolean isUseSpecular() {
         return useSpecular;
     }
 
+    /**
+     * Set to true to use specular lightings on the water
+     * @param useSpecular 
+     */
     public void setUseSpecular(boolean useSpecular) {
         this.useSpecular = useSpecular;
         if (material != null) {
@@ -840,10 +868,18 @@ public class WaterFilter extends Filter {
         }
     }
 
+    /**
+     * returns the foam intensity
+     * @return 
+     */
     public float getFoamIntensity() {
         return foamIntensity;
     }
 
+    /**
+     * sets the foam intensity default is 0.5f
+     * @param foamIntensity 
+     */
     public void setFoamIntensity(float foamIntensity) {
         this.foamIntensity = foamIntensity;
         if (material != null) {
@@ -852,10 +888,19 @@ public class WaterFilter extends Filter {
         }
     }
 
+    /**
+     * returns the reflection displace
+     * see {@link setReflectionDisplace(float reflectionDisplace)}
+     * @return 
+     */
     public float getReflectionDisplace() {
         return reflectionDisplace;
     }
 
+    /**
+     * Sets the reflection displace. define how troubled will look the reflection in the water. default is 30
+     * @param reflectionDisplace 
+     */
     public void setReflectionDisplace(float reflectionDisplace) {
         this.reflectionDisplace = reflectionDisplace;
         if (material != null) {