Examples with BoundingBox com.jme3.bounding.BoundingBox used on opensource projects

Example 21 with BoundingBox

use of com.jme3.bounding.BoundingBox in project jmonkeyengine by jMonkeyEngine.

the class SpotLight method intersectsBox.

@Override
public boolean intersectsBox(BoundingBox box, TempVars vars) {
    if (this.spotRange > 0f) {
        // Sphere v. box collision
        if (!Intersection.intersect(box, position, spotRange)) {
            return false;
        }
    }
    Vector3f otherCenter = box.getCenter();
    Vector3f radVect = vars.vect4;
    radVect.set(box.getXExtent(), box.getYExtent(), box.getZExtent());
    float otherRadiusSquared = radVect.lengthSquared();
    float otherRadius = FastMath.sqrt(otherRadiusSquared);
    // Check if sphere is within spot angle.
    // Cone v. sphere collision.
    Vector3f E = direction.mult(otherRadius * outerAngleSinRcp, vars.vect1);
    Vector3f U = position.subtract(E, vars.vect2);
    Vector3f D = otherCenter.subtract(U, vars.vect3);
    float dsqr = D.dot(D);
    float e = direction.dot(D);
    if (e > 0f && e * e >= dsqr * outerAngleCosSqr) {
        D = otherCenter.subtract(position, vars.vect3);
        dsqr = D.dot(D);
        e = -direction.dot(D);
        if (e > 0f && e * e >= dsqr * outerAngleSinSqr) {
            return dsqr <= otherRadiusSquared;
        } else {
            return true;
        }
    }
    return false;
}

Example 22 with BoundingBox

use of com.jme3.bounding.BoundingBox in project jmonkeyengine by jMonkeyEngine.

the class BIHTree method setMinMax.

private void setMinMax(BoundingBox bbox, boolean doMin, int axis, float value) {
    Vector3f min = bbox.getMin(null);
    Vector3f max = bbox.getMax(null);
    if (doMin) {
        min.set(axis, value);
    } else {
        max.set(axis, value);
    }
    bbox.setMinMax(min, max);
}

Example 23 with BoundingBox

use of com.jme3.bounding.BoundingBox in project jmonkeyengine by jMonkeyEngine.

the class ParticleEmitter method updateParticleState.

private void updateParticleState(float tpf) {
    // Force world transform to update
    this.getWorldTransform();
    TempVars vars = TempVars.get();
    Vector3f min = vars.vect1.set(Vector3f.POSITIVE_INFINITY);
    Vector3f max = vars.vect2.set(Vector3f.NEGATIVE_INFINITY);
    for (int i = 0; i < particles.length; ++i) {
        Particle p = particles[i];
        if (p.life == 0) {
            //                assert i <= firstUnUsed;
            continue;
        }
        p.life -= tpf;
        if (p.life <= 0) {
            this.freeParticle(i);
            continue;
        }
        updateParticle(p, tpf, min, max);
        if (firstUnUsed < i) {
            this.swap(firstUnUsed, i);
            if (i == lastUsed) {
                lastUsed = firstUnUsed;
            }
            firstUnUsed++;
        }
    }
    // Spawns particles within the tpf timeslot with proper age
    float interval = 1f / particlesPerSec;
    float originalTpf = tpf;
    tpf += timeDifference;
    while (tpf > interval) {
        tpf -= interval;
        Particle p = emitParticle(min, max);
        if (p != null) {
            p.life -= tpf;
            if (lastPos != null && isInWorldSpace()) {
                p.position.interpolateLocal(lastPos, 1 - tpf / originalTpf);
            }
            if (p.life <= 0) {
                freeParticle(lastUsed);
            } else {
                updateParticle(p, tpf, min, max);
            }
        }
    }
    timeDifference = tpf;
    if (lastPos == null) {
        lastPos = new Vector3f();
    }
    lastPos.set(getWorldTranslation());
    //This check avoids a NaN bounds when all the particles are dead during the first update.
    if (!min.equals(Vector3f.POSITIVE_INFINITY) && !max.equals(Vector3f.NEGATIVE_INFINITY)) {
        BoundingBox bbox = (BoundingBox) this.getMesh().getBound();
        bbox.setMinMax(min, max);
        this.setBoundRefresh();
    }
    vars.release();
}

Example 24 with BoundingBox

use of com.jme3.bounding.BoundingBox in project jmonkeyengine by jMonkeyEngine.

the class DefaultLightFilter method filterLights.

@Override
public void filterLights(Geometry geometry, LightList filteredLightList) {
    TempVars vars = TempVars.get();
    try {
        LightList worldLights = geometry.getWorldLightList();
        for (int i = 0; i < worldLights.size(); i++) {
            Light light = worldLights.get(i);
            // If this light is not enabled it will be ignored.
            if (!light.isEnabled()) {
                continue;
            }
            if (light.frustumCheckNeeded) {
                processedLights.add(light);
                light.frustumCheckNeeded = false;
                light.intersectsFrustum = light.intersectsFrustum(camera, vars);
            }
            if (!light.intersectsFrustum) {
                continue;
            }
            BoundingVolume bv = geometry.getWorldBound();
            if (bv instanceof BoundingBox) {
                if (!light.intersectsBox((BoundingBox) bv, vars)) {
                    continue;
                }
            } else if (bv instanceof BoundingSphere) {
                if (!Float.isInfinite(((BoundingSphere) bv).getRadius())) {
                    if (!light.intersectsSphere((BoundingSphere) bv, vars)) {
                        continue;
                    }
                }
            }
            if (light.getType() == Light.Type.Probe) {
                probeBlendStrat.registerProbe((LightProbe) light);
            } else {
                filteredLightList.add(light);
            }
        }
        probeBlendStrat.populateProbes(geometry, filteredLightList);
    } finally {
        vars.release();
    }
}

Example 25 with BoundingBox

use of com.jme3.bounding.BoundingBox in project jmonkeyengine by jMonkeyEngine.

the class TemporalMesh method getWorldBound.

@Override
public BoundingVolume getWorldBound() {
    this.updateModelBound();
    Node parent = this.getParent();
    if (parent != null) {
        BoundingVolume bv = boundingBox.clone();
        bv.setCenter(parent.getWorldTranslation());
        return bv;
    } else {
        return boundingBox;
    }
}