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LightScatteringFilter : changed the way lightdensity attenuation is computed according to this thread

Browse Source 
http://hub.jmonkeyengine.org/forum/topic/light-scattering/#post-207641
Chose the second proposition.

git-svn-id: https://jmonkeyengine.googlecode.com/svn/branches/gradle-restructure@11054 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
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rem..om 2014-02-16 13:42:25 +00:00
parent c5448f9aae
commit 8e65f333d8
1 changed files with 4 additions and 1 deletions
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5
jme3-effects/src/main/java/com/jme3/post/filters/LightScatteringFilter.java
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@ -37,6 +37,7 @@ import com.jme3.export.JmeExporter;
import com.jme3.export.JmeImporter; import com.jme3.export.JmeImporter;
import com.jme3.export.OutputCapsule; import com.jme3.export.OutputCapsule;
import com.jme3.material.Material; import com.jme3.material.Material;
import com.jme3.math.FastMath;
import com.jme3.math.Vector3f; import com.jme3.math.Vector3f;
import com.jme3.post.Filter; import com.jme3.post.Filter;
import com.jme3.renderer.Camera; import com.jme3.renderer.Camera;
@ -102,7 +103,9 @@ public class LightScatteringFilter extends Filter {
getClipCoordinates(lightPosition, screenLightPos, viewPort.getCamera()); getClipCoordinates(lightPosition, screenLightPos, viewPort.getCamera());
viewPort.getCamera().getViewMatrix().mult(lightPosition, viewLightPos); viewPort.getCamera().getViewMatrix().mult(lightPosition, viewLightPos);
if (adaptative) { if (adaptative) {
innerLightDensity = Math.max(lightDensity - Math.max(screenLightPos.x, screenLightPos.y), 0.0f); float densityX = 1f - FastMath.clamp(FastMath.abs(screenLightPos.x - 0.5f), 0, 1);
float densityY = 1f - FastMath.clamp(FastMath.abs(screenLightPos.y - 0.5f), 0, 1);
innerLightDensity = lightDensity * densityX * densityY;
} else { } else {
innerLightDensity = lightDensity; innerLightDensity = lightDensity;
} }