Bloom and Multiple ShadowMapping problem

Troubleshooting effects
1

Hi, I have this problem that when I add a bloom filter to my scene and that I have more than one shadowmapping effect, only the first shadowmapping effect is displayed. I do not forgot to set the flush queue sequences to my shadows.
I have this test case which you can toggle the bloom effect by pressing Key_2.

I hope someone can help with this issue.

[java]
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    package jme3test.light;

import com.jme3.app.SimpleApplication;
import com.jme3.input.KeyInput;
import com.jme3.input.controls.ActionListener;
import com.jme3.input.controls.KeyTrigger;
import com.jme3.light.AmbientLight;
import com.jme3.light.DirectionalLight;
import com.jme3.light.SpotLight;
import com.jme3.material.Material;
import com.jme3.math.*;
import com.jme3.post.FilterPostProcessor;
import com.jme3.renderer.queue.RenderQueue.ShadowMode;
import com.jme3.scene.Geometry;
import com.jme3.scene.Spatial;
import com.jme3.scene.shape.Box;
import com.jme3.scene.shape.Sphere;
import com.jme3.shader.VarType;
import com.jme3.shadow.CompareMode;
import com.jme3.shadow.EdgeFilteringMode;
import com.jme3.shadow.SpotLightShadowFilter;
import com.jme3.shadow.SpotLightShadowRenderer;
import com.jme3.texture.Texture.WrapMode;
import com.jme3.util.TangentBinormalGenerator;
import com.jme3.post.filters.BloomFilter;

public class TestSpotLightShadows extends SimpleApplication {

private Vector3f lightTarget = new Vector3f(12, 3.5f, 30);

public static void main(String[] args) {
    TestSpotLightShadows app = new TestSpotLightShadows();
    app.start();
}
SpotLight spot;
Geometry lightMdl;

    SpotLight spot2;
Geometry lightMdl2;

public void setupLighting() {


    rootNode.setShadowMode(ShadowMode.CastAndReceive);

    spot = new SpotLight();

    spot.setSpotRange(1000);
    spot.setSpotInnerAngle(5f * FastMath.DEG_TO_RAD);
    spot.setSpotOuterAngle(10 * FastMath.DEG_TO_RAD);
    spot.setPosition(new Vector3f(-70.70334f, 34.013165f, 27.1017f));
    spot.setDirection(lightTarget.subtract(spot.getPosition()));
    spot.setColor(ColorRGBA.White.mult(2));
    rootNode.addLight(spot);

// PointLight pl=new PointLight();
// pl.setPosition(new Vector3f(77.70334f, 34.013165f, 27.1017f));
// pl.setRadius(1000);
// pl.setColor(ColorRGBA.White.mult(2));
// rootNode.addLight(pl);
lightMdl = new Geometry(“Light”, new Sphere(10, 10, 0.1f));
lightMdl.setMaterial(assetManager.loadMaterial(“Common/Materials/RedColor.j3m”));
lightMdl.setLocalTranslation(new Vector3f(-77.70334f, 34.013165f, 27.1017f));
lightMdl.setLocalScale(5);
rootNode.attachChild(lightMdl);

// DirectionalLight dl = new DirectionalLight();
// dl.setDirection(lightTarget.subtract(new Vector3f(77.70334f, 34.013165f, 27.1017f)));
// dl.setColor(ColorRGBA.White.mult(0.7f));
// rootNode.addLight(dl);

    final SpotLightShadowRenderer slsr = new SpotLightShadowRenderer(assetManager, 512);
    slsr.setLight(spot);       
    slsr.setShadowIntensity(0.6f);
    slsr.setEdgeFilteringMode(EdgeFilteringMode.PCFPOISSON);   
    viewPort.addProcessor(slsr);

    SpotLightShadowFilter slsf = new SpotLightShadowFilter(assetManager, 512);
    slsf.setLight(spot);    
    slsf.setShadowIntensity(0.6f);
    slsf.setEdgeFilteringMode(EdgeFilteringMode.PCFPOISSON);  
    slsf.setEnabled(false);
    
    FilterPostProcessor fpp = new FilterPostProcessor(assetManager);
    fpp.addFilter(slsf);
    viewPort.addProcessor(fpp);
    
    //ShadowTestUIManager uiMan = new ShadowTestUIManager(assetManager, slsr, slsf, guiNode, inputManager, viewPort);

    inputManager.addListener(new ActionListener() {
        public void onAction(String name, boolean isPressed, float tpf) {
            if (name.equals("stop") && isPressed) {
                stop = !stop;
             //   slsr.displayFrustum();
                System.out.println("pos : " + spot.getPosition());
                System.out.println("dir : " + spot.getDirection());
            }
        }
    }, "stop");

    inputManager.addMapping("stop", new KeyTrigger(KeyInput.KEY_1));
    

}

public void setupLighting2() {
    rootNode.setShadowMode(ShadowMode.CastAndReceive);

    spot2 = new SpotLight();

    spot2.setSpotRange(1000);
    spot2.setSpotInnerAngle(5f * FastMath.DEG_TO_RAD);
    spot2.setSpotOuterAngle(10 * FastMath.DEG_TO_RAD);
    spot2.setPosition(new Vector3f(70.70334f, 34.013165f, 27.1017f));
    spot2.setDirection(lightTarget.subtract(spot2.getPosition()));
    spot2.setColor(ColorRGBA.White.mult(2));
    rootNode.addLight(spot2);

// PointLight pl=new PointLight();
// pl.setPosition(new Vector3f(77.70334f, 34.013165f, 27.1017f));
// pl.setRadius(1000);
// pl.setColor(ColorRGBA.White.mult(2));
// rootNode.addLight(pl);
lightMdl2 = new Geometry(“Light”, new Sphere(10, 10, 0.1f));
lightMdl2.setMaterial(assetManager.loadMaterial(“Common/Materials/RedColor.j3m”));
lightMdl2.setLocalTranslation(new Vector3f(77.70334f, 34.013165f, 27.1017f));
lightMdl2.setLocalScale(5);
rootNode.attachChild(lightMdl2);

// DirectionalLight dl = new DirectionalLight();
// dl.setDirection(lightTarget.subtract(new Vector3f(77.70334f, 34.013165f, 27.1017f)));
// dl.setColor(ColorRGBA.White.mult(0.7f));
// rootNode.addLight(dl);

    final SpotLightShadowRenderer slsr = new SpotLightShadowRenderer(assetManager, 512);
    slsr.setLight(spot2);       
    slsr.setShadowIntensity(0.5f);
    slsr.setEdgeFilteringMode(EdgeFilteringMode.PCFPOISSON); 
    slsr.setFlushQueues(false);
    viewPort.addProcessor(slsr);

    SpotLightShadowFilter slsf = new SpotLightShadowFilter(assetManager, 512);
    slsf.setLight(spot2);    
    slsf.setFlushQueues(false);
    slsf.setShadowIntensity(0.5f);
    slsf.setEdgeFilteringMode(EdgeFilteringMode.PCFPOISSON);  
    slsf.setEnabled(false);
    
    FilterPostProcessor fpp = new FilterPostProcessor(assetManager);
    fpp.addFilter(slsf);
    viewPort.addProcessor(fpp);
    
    //ShadowTestUIManager uiMan = new ShadowTestUIManager(assetManager, slsr, slsf, guiNode, inputManager, viewPort);

    

}

public void setupFloor() {
    Material mat = assetManager.loadMaterial("Textures/Terrain/Pond/Pond.j3m");
    mat.getTextureParam("DiffuseMap").getTextureValue().setWrap(WrapMode.Repeat);
    mat.getTextureParam("NormalMap").getTextureValue().setWrap(WrapMode.Repeat);
    mat.setBoolean("UseMaterialColors", true);
    mat.setColor("Diffuse", ColorRGBA.White.clone());
    mat.setColor("Ambient", ColorRGBA.White.clone());
   // mat.setColor("Specular", ColorRGBA.White.clone());
    // mat.getTextureParam("ParallaxMap").getTextureValue().setWrap(WrapMode.Repeat);
    mat.setFloat("Shininess", 0);
    //  mat.setBoolean("VertexLighting", true);


    Box floor = new Box(Vector3f.ZERO, 50, 1f, 50);
    TangentBinormalGenerator.generate(floor);
    floor.scaleTextureCoordinates(new Vector2f(5, 5));
    Geometry floorGeom = new Geometry("Floor", floor);
    floorGeom.setMaterial(mat);
    floorGeom.setShadowMode(ShadowMode.Receive);
    rootNode.attachChild(floorGeom);
}

public void setupSignpost() {
    Spatial signpost = assetManager.loadModel("Models/Sign Post/Sign Post.mesh.xml");
    Material mat = assetManager.loadMaterial("Models/Sign Post/Sign Post.j3m");
    //   mat.setBoolean("VertexLighting", true);
    signpost.setMaterial(mat);
    signpost.rotate(0, FastMath.HALF_PI, 0);
    signpost.setLocalTranslation(12, 3.5f, 30);
    signpost.setLocalScale(4);
    signpost.setShadowMode(ShadowMode.CastAndReceive);
    TangentBinormalGenerator.generate(signpost);
    rootNode.attachChild(signpost);
}

@Override
public void simpleInitApp() {
            AmbientLight al = new AmbientLight();
    al.setColor(ColorRGBA.White.mult(0.3f));
    rootNode.addLight(al);
    cam.setLocation(new Vector3f(27.492603f, 29.138166f, -13.232513f));
    cam.setRotation(new Quaternion(0.25168246f, -0.10547892f, 0.02760565f, 0.96164864f));
    flyCam.setMoveSpeed(30);
    

           
    setupLighting2();
    setupLighting();
    setupFloor();
    setupSignpost();
    
    fpp2 =new FilterPostProcessor(assetManager);
    bloom=new BloomFilter(BloomFilter.GlowMode.Scene);
    fpp2.addFilter(bloom);
    getViewPort().addProcessor(fpp2);
    
    inputManager.addListener(new ActionListener() {
        public void onAction(String name, boolean isPressed, float tpf) {
            if (name.equals("bloom") && isPressed) {
                if(bloomToggle)
                {
                   getViewPort().removeProcessor(fpp2);
                   fpp2.removeFilter(bloom);
                   bloomToggle = false;
                }
                else
                {
                    fpp2.addFilter(bloom);
                    getViewPort().addProcessor(fpp2);
                    bloomToggle = true;
                }
            }
        }
    }, "bloom");

    inputManager.addMapping("bloom", new KeyTrigger(KeyInput.KEY_2));
    


}
float angle;
boolean stop = true;
boolean bloomToggle = true;
int count = 0;
FilterPostProcessor fpp2 ;
BloomFilter bloom ;

@Override
public void simpleUpdate(float tpf) {        
    
    
    if (!stop) {
        super.simpleUpdate(tpf);
        angle += tpf;
        angle %= FastMath.TWO_PI;

        spot2.setPosition(new Vector3f(FastMath.cos(angle) * 30f, 34.013165f, FastMath.sin(angle) * 30f));
        lightMdl.setLocalTranslation(spot2.getPosition());
        spot2.setDirection(lightTarget.subtract(spot2.getPosition()));
    }
}

}
[/java]

2

I think that you need to set flushQueues to false on all except last filter in the chain.

3

nop it does nothing different

4

Several mistakes here. Here is what you should know

  1. Only ONE FilterPostProcessor for the viewport, else it’s unmanageable.
  2. if you have a ShadowRenderer it must be placed BEFORE the FPP in the viewport.
  3. You have to decide if you use the ShadowRenderer or the ShadowFilter but not both.

here is how the processor queue looks like with your setting

  • ShadowRenderer for Light 1
  • FilterPostProcessor with the ShadowFilter for Light1
  • ShadowRenderer for Light 2
  • FilterPostProcessor with the ShadowFilter for Light2
  • FilterPostProcessor with the BloomFilter

I’m actually surprised it renders something almost correct.

2 options :

  • Just use a ShadowRenderer for each light and remove the code related to FilterProcessor in setupLighting 1 and 2
    Then use the Fpp for bloom.
  • Create only one FilterPostPorcessor, add to it the ShadowFilter for light 1, then ShadowFilter for light 2, then the BloomFilter.

I just commented line 116 and 180 of your test case and here is the result.

I realize the test case can be misleading because I add both the render and the filter, and then have an input mapping that switch between them for testing purpose.