本文整理匯總了Java中org.sunflow.math.Vector3.decode方法的典型用法代碼示例。如果您正苦於以下問題：Java Vector3.decode方法的具體用法？Java Vector3.decode怎麽用？Java Vector3.decode使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.sunflow.math.Vector3的用法示例。
在下文中一共展示了Vector3.decode方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: getSamples
import org.sunflow.math.Vector3; //導入方法依賴的package包/類
public void getSamples(ShadingState state) {
if (storedPhotons == 0)
return;
NearestPhotons np = new NearestPhotons(state.getPoint(), gatherNum, gatherRadius * gatherRadius);
locatePhotons(np);
if (np.found < 8)
return;
Point3 ppos = new Point3();
Vector3 pdir = new Vector3();
Vector3 pvec = new Vector3();
float invArea = 1.0f / ((float) Math.PI * np.dist2[0]);
float maxNDist = np.dist2[0] * 0.05f;
float f2r2 = 1.0f / (filterValue * filterValue * np.dist2[0]);
float fInv = 1.0f / (1.0f - 2.0f / (3.0f * filterValue));
for (int i = 1; i <= np.found; i++) {
Photon phot = np.index[i];
Vector3.decode(phot.dir, pdir);
float cos = -Vector3.dot(pdir, state.getNormal());
if (cos > 0.001) {
ppos.set(phot.x, phot.y, phot.z);
Point3.sub(ppos, state.getPoint(), pvec);
float pcos = Vector3.dot(pvec, state.getNormal());
if ((pcos < maxNDist) && (pcos > -maxNDist)) {
LightSample sample = new LightSample();
sample.setShadowRay(new Ray(state.getPoint(), pdir.negate()));
sample.setRadiance(new Color().setRGBE(np.index[i].power).mul(invArea / cos), Color.BLACK);
sample.getDiffuseRadiance().mul((1.0f - (float) Math.sqrt(np.dist2[i] * f2r2)) * fInv);
state.addSample(sample);
}
}
}
}
示例2: precomputeRadiance
import org.sunflow.math.Vector3; //導入方法依賴的package包/類
public void precomputeRadiance() {
if (storedPhotons == 0)
return;
// precompute the radiance for all photons that are neither
// leaves nor parents of leaves in the tree.
int quadStoredPhotons = halfStoredPhotons / 2;
Point3 p = new Point3();
Vector3 n = new Vector3();
Point3 ppos = new Point3();
Vector3 pdir = new Vector3();
Vector3 pvec = new Vector3();
Color irr = new Color();
Color pow = new Color();
float maxDist2 = gatherRadius * gatherRadius;
NearestPhotons np = new NearestPhotons(p, numGather, maxDist2);
Photon[] temp = new Photon[quadStoredPhotons + 1];
UI.taskStart("Precomputing radiance", 1, quadStoredPhotons);
for (int i = 1; i <= quadStoredPhotons; i++) {
UI.taskUpdate(i);
Photon curr = photons[i];
p.set(curr.x, curr.y, curr.z);
Vector3.decode(curr.normal, n);
irr.set(Color.BLACK);
np.reset(p, maxDist2);
locatePhotons(np);
if (np.found < 8) {
curr.data = 0;
temp[i] = curr;
continue;
}
float invArea = 1.0f / ((float) Math.PI * np.dist2[0]);
float maxNDist = np.dist2[0] * 0.05f;
for (int j = 1; j <= np.found; j++) {
Photon phot = np.index[j];
Vector3.decode(phot.dir, pdir);
float cos = -Vector3.dot(pdir, n);
if (cos > 0.01f) {
ppos.set(phot.x, phot.y, phot.z);
Point3.sub(ppos, p, pvec);
float pcos = Vector3.dot(pvec, n);
if ((pcos < maxNDist) && (pcos > -maxNDist))
irr.add(pow.setRGBE(phot.power));
}
}
irr.mul(invArea);
// compute radiance
irr.mul(new Color(curr.data)).mul(1.0f / (float) Math.PI);
curr.data = irr.toRGBE();
temp[i] = curr;
}
UI.taskStop();
// resize photon map to only include irradiance photons
numGather /= 4;
maxRadius = 1.4f * (float) Math.sqrt(maxPower * numGather);
if (gatherRadius > maxRadius)
gatherRadius = maxRadius;
storedPhotons = quadStoredPhotons;
halfStoredPhotons = storedPhotons / 2;
log2n = (int) Math.ceil(Math.log(storedPhotons) / Math.log(2.0));
photons = temp;
hasRadiance = true;
}