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* Make tone-mapping white-point adjustment logarithmic in the sample to have less sudden exposure transitions

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This commit is contained in:
shadowislord 2014-05-31 12:06:49 -04:00
parent c01cbdd5e0
commit d694229335
1 changed files with 17 additions and 13 deletions
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30
jme3-examples/src/main/java/jme3test/post/TestToneMapFilter.java
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@ -38,23 +38,20 @@ import com.jme3.input.controls.ActionListener;
import com.jme3.input.controls.AnalogListener; import com.jme3.input.controls.AnalogListener;
import com.jme3.input.controls.KeyTrigger; import com.jme3.input.controls.KeyTrigger;
import com.jme3.material.Material; import com.jme3.material.Material;
import com.jme3.math.ColorRGBA; import com.jme3.math.FastMath;
import com.jme3.math.Vector3f; import com.jme3.math.Vector3f;
import com.jme3.post.FilterPostProcessor; import com.jme3.post.FilterPostProcessor;
import com.jme3.post.HDRRenderer;
import com.jme3.post.filters.ColorOverlayFilter;
import com.jme3.post.filters.RadialBlurFilter;
import com.jme3.post.filters.ToneMapFilter; import com.jme3.post.filters.ToneMapFilter;
import com.jme3.scene.Geometry; import com.jme3.scene.Geometry;
import com.jme3.scene.shape.Box; import com.jme3.scene.shape.Box;
import com.jme3.system.AppSettings; import com.jme3.system.AppSettings;
import com.jme3.ui.Picture;
public class TestToneMapFilter extends SimpleApplication { public class TestToneMapFilter extends SimpleApplication {
private boolean enabled = true; private boolean enabled = true;
private FilterPostProcessor fpp; private FilterPostProcessor fpp;
private ToneMapFilter toneMapFilter; private ToneMapFilter toneMapFilter;
private float whitePointLog = 1f;
public static void main(String[] args){ public static void main(String[] args){
TestToneMapFilter app = new TestToneMapFilter(); TestToneMapFilter app = new TestToneMapFilter();
@ -78,6 +75,11 @@ public class TestToneMapFilter extends SimpleApplication {
@Override @Override
public void simpleInitApp() { public void simpleInitApp() {
System.out.println("== Tone Mapping Sample ==");
System.out.println(" SPACE:\tToggle tone-mapping OFF or ON");
System.out.println(" Y:\tIncrease white-point");
System.out.println(" H:\tDecrease white-point");
fpp = new FilterPostProcessor(assetManager); fpp = new FilterPostProcessor(assetManager);
toneMapFilter = new ToneMapFilter(); toneMapFilter = new ToneMapFilter();
fpp.addFilter(toneMapFilter); fpp.addFilter(toneMapFilter);
@ -102,9 +104,11 @@ public class TestToneMapFilter extends SimpleApplication {
if (enabled) { if (enabled) {
enabled = false; enabled = false;
viewPort.removeProcessor(fpp); viewPort.removeProcessor(fpp);
System.out.println("Tone Mapping OFF");
} else { } else {
enabled = true; enabled = true;
viewPort.addProcessor(fpp); viewPort.addProcessor(fpp);
System.out.println("Tone Mapping ON");
} }
} }
} }
@ -113,22 +117,22 @@ public class TestToneMapFilter extends SimpleApplication {
AnalogListener anl = new AnalogListener() { AnalogListener anl = new AnalogListener() {
public void onAnalog(String name, float isPressed, float tpf) { public void onAnalog(String name, float isPressed, float tpf) {
float wp = toneMapFilter.getWhitePoint().x;
if (name.equals("WhitePointUp")) { if (name.equals("WhitePointUp")) {
wp += tpf * 1.0; whitePointLog += tpf * 1.0;
if (wp > 12f) { if (whitePointLog > 4f) {
wp = 12f; whitePointLog = 4f;
} }
float wp = FastMath.exp(whitePointLog);
toneMapFilter.setWhitePoint(new Vector3f(wp, wp, wp)); toneMapFilter.setWhitePoint(new Vector3f(wp, wp, wp));
System.out.println("White point: " + wp); System.out.println("White point: " + wp);
} }
if (name.equals("WhitePointDown")) { if (name.equals("WhitePointDown")) {
wp -= tpf * 1.0; whitePointLog -= tpf * 1.0;
if (wp < 0.01f) { if (whitePointLog < -4f) {
wp = 0.01f; whitePointLog = -4f;
} }
float wp = FastMath.exp(whitePointLog);
toneMapFilter.setWhitePoint(new Vector3f(wp, wp, wp)); toneMapFilter.setWhitePoint(new Vector3f(wp, wp, wp));
System.out.println("White point: " + wp); System.out.println("White point: " + wp);
} }