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uses temporary variables instead of object creation; much faster & efficient

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git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@11023 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
This commit is contained in:
phr00t 2014-02-07 02:22:33 +00:00
parent 414a20fc5f
commit 8aeb523043
1 changed files with 23 additions and 18 deletions
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39
engine/src/core/com/jme3/shadow/ShadowUtil.java
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@ -44,7 +44,6 @@ import com.jme3.scene.Geometry;
import com.jme3.util.TempVars; import com.jme3.util.TempVars;
import static java.lang.Math.max; import static java.lang.Math.max;
import static java.lang.Math.min; import static java.lang.Math.min;
import java.util.ArrayList;
import java.util.List; import java.util.List;
/** /**
@ -172,14 +171,16 @@ public class ShadowUtil {
*/ */
public static BoundingBox computeUnionBound(GeometryList list, Transform transform) { public static BoundingBox computeUnionBound(GeometryList list, Transform transform) {
BoundingBox bbox = new BoundingBox(); BoundingBox bbox = new BoundingBox();
TempVars tempv = TempVars.get();
for (int i = 0; i < list.size(); i++) { for (int i = 0; i < list.size(); i++) {
BoundingVolume vol = list.get(i).getWorldBound(); BoundingVolume vol = list.get(i).getWorldBound();
BoundingVolume newVol = vol.transform(transform); BoundingVolume newVol = vol.transform(transform, tempv.bbox);
//Nehon : prevent NaN and infinity values to screw the final bounding box //Nehon : prevent NaN and infinity values to screw the final bounding box
if (!Float.isNaN(newVol.getCenter().x) && !Float.isInfinite(newVol.getCenter().x)) { if (!Float.isNaN(newVol.getCenter().x) && !Float.isInfinite(newVol.getCenter().x)) {
bbox.mergeLocal(newVol); bbox.mergeLocal(newVol);
} }
} }
tempv.release();
return bbox; return bbox;
} }
@ -191,15 +192,16 @@ public class ShadowUtil {
*/ */
public static BoundingBox computeUnionBound(GeometryList list, Matrix4f mat) { public static BoundingBox computeUnionBound(GeometryList list, Matrix4f mat) {
BoundingBox bbox = new BoundingBox(); BoundingBox bbox = new BoundingBox();
BoundingVolume store = null; TempVars tempv = TempVars.get();
for (int i = 0; i < list.size(); i++) { for (int i = 0; i < list.size(); i++) {
BoundingVolume vol = list.get(i).getWorldBound(); BoundingVolume vol = list.get(i).getWorldBound();
store = vol.clone().transform(mat, null); BoundingVolume store = vol.clone().transform(mat, tempv.bbox);
//Nehon : prevent NaN and infinity values to screw the final bounding box //Nehon : prevent NaN and infinity values to screw the final bounding box
if (!Float.isNaN(store.getCenter().x) && !Float.isInfinite(store.getCenter().x)) { if (!Float.isNaN(store.getCenter().x) && !Float.isInfinite(store.getCenter().x)) {
bbox.mergeLocal(store); bbox.mergeLocal(store);
} }
} }
tempv.release();
return bbox; return bbox;
} }
@ -370,24 +372,30 @@ public class ShadowUtil {
BoundingBox splitBB = computeBoundForPoints(points, viewProjMatrix); BoundingBox splitBB = computeBoundForPoints(points, viewProjMatrix);
ArrayList<BoundingVolume> visRecvList = new ArrayList<BoundingVolume>(); TempVars vars = TempVars.get();
BoundingBox casterBB = new BoundingBox();
BoundingBox receiverBB = new BoundingBox();
int casterCount = 0, receiverCount = 0;
for (int i = 0; i < receivers.size(); i++) { for (int i = 0; i < receivers.size(); i++) {
// convert bounding box to light's viewproj space // convert bounding box to light's viewproj space
Geometry receiver = receivers.get(i); Geometry receiver = receivers.get(i);
BoundingVolume bv = receiver.getWorldBound(); BoundingVolume bv = receiver.getWorldBound();
BoundingVolume recvBox = bv.transform(viewProjMatrix, null); BoundingVolume recvBox = bv.transform(viewProjMatrix, vars.bbox);
if (splitBB.intersects(recvBox)) { if (splitBB.intersects(recvBox)) {
visRecvList.add(recvBox); receiverBB.mergeLocal(recvBox);
receiverCount++;
} }
} }
ArrayList<BoundingVolume> visOccList = new ArrayList<BoundingVolume>();
for (int i = 0; i < occluders.size(); i++) { for (int i = 0; i < occluders.size(); i++) {
// convert bounding box to light's viewproj space // convert bounding box to light's viewproj space
Geometry occluder = occluders.get(i); Geometry occluder = occluders.get(i);
BoundingVolume bv = occluder.getWorldBound(); BoundingVolume bv = occluder.getWorldBound();
BoundingVolume occBox = bv.transform(viewProjMatrix, null); BoundingVolume occBox = bv.transform(viewProjMatrix, vars.bbox);
boolean intersects = splitBB.intersects(occBox); boolean intersects = splitBB.intersects(occBox);
if (!intersects && occBox instanceof BoundingBox) { if (!intersects && occBox instanceof BoundingBox) {
@ -406,31 +414,28 @@ public class ShadowUtil {
// Before adding it // Before adding it
occBB.setZExtent(occBB.getZExtent() - 50); occBB.setZExtent(occBB.getZExtent() - 50);
occBB.setCenter(occBB.getCenter().subtractLocal(0, 0, 25)); occBB.setCenter(occBB.getCenter().subtractLocal(0, 0, 25));
visOccList.add(occBox); casterBB.mergeLocal(occBox);
casterCount++;
if (splitOccluders != null) { if (splitOccluders != null) {
splitOccluders.add(occluder); splitOccluders.add(occluder);
} }
} }
} else if (intersects) { } else if (intersects) {
visOccList.add(occBox); casterBB.mergeLocal(occBox);
casterCount++;
if (splitOccluders != null) { if (splitOccluders != null) {
splitOccluders.add(occluder); splitOccluders.add(occluder);
} }
} }
} }
BoundingBox casterBB = computeUnionBound(visOccList);
BoundingBox receiverBB = computeUnionBound(visRecvList);
//Nehon 08/18/2010 this is to avoid shadow bleeding when the ground is set to only receive shadows //Nehon 08/18/2010 this is to avoid shadow bleeding when the ground is set to only receive shadows
if (visOccList.size() != visRecvList.size()) { if (casterCount != receiverCount) {
casterBB.setXExtent(casterBB.getXExtent() + 2.0f); casterBB.setXExtent(casterBB.getXExtent() + 2.0f);
casterBB.setYExtent(casterBB.getYExtent() + 2.0f); casterBB.setYExtent(casterBB.getYExtent() + 2.0f);
casterBB.setZExtent(casterBB.getZExtent() + 2.0f); casterBB.setZExtent(casterBB.getZExtent() + 2.0f);
} }
TempVars vars = TempVars.get();
Vector3f casterMin = casterBB.getMin(vars.vect1); Vector3f casterMin = casterBB.getMin(vars.vect1);
Vector3f casterMax = casterBB.getMax(vars.vect2); Vector3f casterMax = casterBB.getMax(vars.vect2);