Examples of TempVars

com.jme3.util.TempVars
Temporary variables assigned to each thread. Engine classes may access these temp variables with TempVars.get(), all retrieved TempVars instances must be returned via TempVars.release(). This returns an available instance of the TempVar class ensuring this particular instance is never used elsewhere in the mean time.

Examples of com.jme3.util.TempVars

        // Compute the cached world matrix
        cachedWorldMat.loadIdentity();
        cachedWorldMat.setRotationQuaternion(worldTransform.getRotation());
        cachedWorldMat.setTranslation(worldTransform.getTranslation());


        TempVars vars = TempVars.get();
        Matrix4f scaleMat = vars.tempMat4;
        scaleMat.loadIdentity();
        scaleMat.scale(worldTransform.getScale());
        cachedWorldMat.multLocal(scaleMat);
        vars.release();
    }

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Examples of com.jme3.util.TempVars

     * @param quad
     * @return true if ray intersects triangle
     */
    private boolean intersects(Vector3f v0, Vector3f v1, Vector3f v2,
            Vector3f store, boolean doPlanar, boolean quad) {
        TempVars vars = TempVars.get();


        Vector3f tempVa = vars.vect1,
                tempVb = vars.vect2,
                tempVc = vars.vect3,
                tempVd = vars.vect4;


        Vector3f diff = origin.subtract(v0, tempVa);
        Vector3f edge1 = v1.subtract(v0, tempVb);
        Vector3f edge2 = v2.subtract(v0, tempVc);
        Vector3f norm = edge1.cross(edge2, tempVd);


        float dirDotNorm = direction.dot(norm);
        float sign;
        if (dirDotNorm > FastMath.FLT_EPSILON) {
            sign = 1;
        } else if (dirDotNorm < -FastMath.FLT_EPSILON) {
            sign = -1f;
            dirDotNorm = -dirDotNorm;
        } else {
            // ray and triangle/quad are parallel
            vars.release();
            return false;
        }


        float dirDotDiffxEdge2 = sign * direction.dot(diff.cross(edge2, edge2));
        if (dirDotDiffxEdge2 >= 0.0f) {
            float dirDotEdge1xDiff = sign
                    * direction.dot(edge1.crossLocal(diff));


            if (dirDotEdge1xDiff >= 0.0f) {
                if (!quad ? dirDotDiffxEdge2 + dirDotEdge1xDiff <= dirDotNorm : dirDotEdge1xDiff <= dirDotNorm) {
                    float diffDotNorm = -sign * diff.dot(norm);
                    if (diffDotNorm >= 0.0f) {
                        // this method always returns
                        vars.release();


                        // ray intersects triangle
                        // if storage vector is null, just return true,
                        if (store == null) {
                            return true;
                        }


                        // else fill in.
                        float inv = 1f / dirDotNorm;
                        float t = diffDotNorm * inv;
                        if (!doPlanar) {
                            store.set(origin).addLocal(direction.x * t,
                                    direction.y * t, direction.z * t);
                        } else {
                            // these weights can be used to determine
                            // interpolated values, such as texture coord.
                            // eg. texcoord s,t at intersection point:
                            // s = w0*s0 + w1*s1 + w2*s2;
                            // t = w0*t0 + w1*t1 + w2*t2;
                            float w1 = dirDotDiffxEdge2 * inv;
                            float w2 = dirDotEdge1xDiff * inv;
                            //float w0 = 1.0f - w1 - w2;
                            store.set(t, w1, w2);
                        }
                        return true;
                    }
                }
            }
        }
        vars.release();
        return false;
    }

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Examples of com.jme3.util.TempVars

            throw new UnsupportedCollisionException();
        }
    }


    public float distanceSquared(Vector3f point) {
        TempVars vars = TempVars.get();


        Vector3f tempVa = vars.vect1,
                tempVb = vars.vect2;


        point.subtract(origin, tempVa);
        float rayParam = direction.dot(tempVa);
        if (rayParam > 0) {
            origin.add(direction.mult(rayParam, tempVb), tempVb);
        } else {
            tempVb.set(origin);
            rayParam = 0.0f;
        }


        tempVb.subtract(point, tempVa);
        float len = tempVa.lengthSquared();
        vars.release();
        return len;
    }

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Examples of com.jme3.util.TempVars

            globalTriIndex += geomTriCount;
        }
    }


    private void doTransforms(FloatBuffer bindBufPos, FloatBuffer bindBufNorm, FloatBuffer bufPos, FloatBuffer bufNorm, int start, int end, Matrix4f transform) {
        TempVars vars = TempVars.get();
        Vector3f pos = vars.vect1;
        Vector3f norm = vars.vect2;


        int length = (end - start) * 3;


        // offset is given in element units
        // convert to be in component units
        int offset = start * 3;
        bindBufPos.rewind();
        bindBufNorm.rewind();
        //bufPos.position(offset);
        //bufNorm.position(offset);
        bindBufPos.get(tmpFloat, 0, length);
        bindBufNorm.get(tmpFloatN, 0, length);
        int index = 0;
        while (index < length) {
            pos.x = tmpFloat[index];
            norm.x = tmpFloatN[index++];
            pos.y = tmpFloat[index];
            norm.y = tmpFloatN[index++];
            pos.z = tmpFloat[index];
            norm.z = tmpFloatN[index];


            transform.mult(pos, pos);
            transform.multNormal(norm, norm);


            index -= 2;
            tmpFloat[index] = pos.x;
            tmpFloatN[index++] = norm.x;
            tmpFloat[index] = pos.y;
            tmpFloatN[index++] = norm.y;
            tmpFloat[index] = pos.z;
            tmpFloatN[index++] = norm.z;


        }
        vars.release();
        bufPos.position(offset);
        //using bulk put as it's faster
        bufPos.put(tmpFloat, 0, length);
        bufNorm.position(offset);
        //using bulk put as it's faster

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Examples of com.jme3.util.TempVars

        //using bulk put as it's faster
        bufNorm.put(tmpFloatN, 0, length);
    }


    private void doTransformsTangents(FloatBuffer bindBufPos, FloatBuffer bindBufNorm, FloatBuffer bindBufTangents,FloatBuffer bufPos, FloatBuffer bufNorm, FloatBuffer bufTangents, int start, int end, Matrix4f transform) {
        TempVars vars = TempVars.get();
        Vector3f pos = vars.vect1;
        Vector3f norm = vars.vect2;
        Vector3f tan = vars.vect3;


        int length = (end - start) * 3;
        int tanLength = (end - start) * 4;


        // offset is given in element units
        // convert to be in component units
        int offset = start * 3;
        int tanOffset = start * 4;


        
        bindBufPos.rewind();
        bindBufNorm.rewind();
        bindBufTangents.rewind();
        bindBufPos.get(tmpFloat, 0, length);
        bindBufNorm.get(tmpFloatN, 0, length);
        bindBufTangents.get(tmpFloatT, 0, tanLength);


        int index = 0;
        int tanIndex = 0;
        while (index < length) {
            pos.x = tmpFloat[index];
            norm.x = tmpFloatN[index++];
            pos.y = tmpFloat[index];
            norm.y = tmpFloatN[index++];
            pos.z = tmpFloat[index];
            norm.z = tmpFloatN[index];


            tan.x = tmpFloatT[tanIndex++];
            tan.y = tmpFloatT[tanIndex++];
            tan.z = tmpFloatT[tanIndex++];


            transform.mult(pos, pos);
            transform.multNormal(norm, norm);
            transform.multNormal(tan, tan);


            index -= 2;
            tanIndex -= 3;


            tmpFloat[index] = pos.x;
            tmpFloatN[index++] = norm.x;
            tmpFloat[index] = pos.y;
            tmpFloatN[index++] = norm.y;
            tmpFloat[index] = pos.z;
            tmpFloatN[index++] = norm.z;


            tmpFloatT[tanIndex++] = tan.x;
            tmpFloatT[tanIndex++] = tan.y;
            tmpFloatT[tanIndex++] = tan.z;


            //Skipping 4th element of tangent buffer (handedness)
            tanIndex++;


        }
        vars.release();
        bufPos.position(offset);
        //using bulk put as it's faster
        bufPos.put(tmpFloat, 0, length);
        bufNorm.position(offset);
        //using bulk put as it's faster

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Examples of com.jme3.util.TempVars

        //using bulk put as it's faster
        bufTangents.put(tmpFloatT, 0, tanLength);
    }


    private void doCopyBuffer(FloatBuffer inBuf, int offset, FloatBuffer outBuf, int componentSize) {
        TempVars vars = TempVars.get();
        Vector3f pos = vars.vect1;


        // offset is given in element units
        // convert to be in component units
        offset *= componentSize;


        for (int i = 0; i < inBuf.limit() / componentSize; i++) {
            pos.x = inBuf.get(i * componentSize + 0);
            pos.y = inBuf.get(i * componentSize + 1);
            pos.z = inBuf.get(i * componentSize + 2);


            outBuf.put(offset + i * componentSize + 0, pos.x);
            outBuf.put(offset + i * componentSize + 1, pos.y);
            outBuf.put(offset + i * componentSize + 2, pos.z);
        }
        vars.release();
    }

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Examples of com.jme3.util.TempVars

     *
     * @param newUp
     *            the up vector to use - assumed to be a unit vector.
     */
    public void rotateUpTo(Vector3f newUp) {
        TempVars vars = TempVars.get();


        Vector3f compVecA = vars.vect1;
        Quaternion q = vars.quat1;


        // First figure out the current up vector.
        Vector3f upY = compVecA.set(Vector3f.UNIT_Y);
        Quaternion rot = localTransform.getRotation();
        rot.multLocal(upY);


        // get angle between vectors
        float angle = upY.angleBetween(newUp);


        // figure out rotation axis by taking cross product
        Vector3f rotAxis = upY.crossLocal(newUp).normalizeLocal();


        // Build a rotation quat and apply current local rotation.
        q.fromAngleNormalAxis(angle, rotAxis);
        q.mult(rot, rot);


        vars.release();


        setTransformRefresh();
    }

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Examples of com.jme3.util.TempVars

            afSin[iR] = FastMath.sin(fAngle);
        }
        afSin[radialSamples] = afSin[0];
        afCos[radialSamples] = afCos[0];


        TempVars vars = TempVars.get();
        Vector3f tempVa = vars.vect1;
        Vector3f tempVb = vars.vect2;
        Vector3f tempVc = vars.vect3;


        // generate the sphere itself
        int i = 0;
        for (int iZ = 1; iZ < (zSamples - 1); iZ++) {
            float fAFraction = FastMath.HALF_PI * (-1.0f + fZFactor * iZ); // in (-pi/2, pi/2)
            float fZFraction;
            if (useEvenSlices) {
                fZFraction = -1.0f + fZFactor * iZ; // in (-1, 1)
            } else {
                fZFraction = FastMath.sin(fAFraction); // in (-1,1)
            }
            float fZ = radius * fZFraction;


            // compute center of slice
            Vector3f kSliceCenter = tempVb.set(Vector3f.ZERO);
            kSliceCenter.z += fZ;


            // compute radius of slice
            float fSliceRadius = FastMath.sqrt(FastMath.abs(radius * radius
                    - fZ * fZ));


            // compute slice vertices with duplication at end point
            Vector3f kNormal;
            int iSave = i;
            for (int iR = 0; iR < radialSamples; iR++) {
                float fRadialFraction = iR * fInvRS; // in [0,1)
                Vector3f kRadial = tempVc.set(afCos[iR], afSin[iR], 0);
                kRadial.mult(fSliceRadius, tempVa);
                posBuf.put(kSliceCenter.x + tempVa.x).put(
                        kSliceCenter.y + tempVa.y).put(
                        kSliceCenter.z + tempVa.z);


                BufferUtils.populateFromBuffer(tempVa, posBuf, i);
                kNormal = tempVa;
                kNormal.normalizeLocal();
                if (!interior) // allow interior texture vs. exterior
                {
                    normBuf.put(kNormal.x).put(kNormal.y).put(
                            kNormal.z);
                } else {
                    normBuf.put(-kNormal.x).put(-kNormal.y).put(
                            -kNormal.z);
                }


                if (textureMode == TextureMode.Original) {
                    texBuf.put(fRadialFraction).put(
                            0.5f * (fZFraction + 1.0f));
                } else if (textureMode == TextureMode.Projected) {
                    texBuf.put(fRadialFraction).put(
                            FastMath.INV_PI
                            * (FastMath.HALF_PI + FastMath.asin(fZFraction)));
                } else if (textureMode == TextureMode.Polar) {
                    float r = (FastMath.HALF_PI - FastMath.abs(fAFraction)) / FastMath.PI;
                    float u = r * afCos[iR] + 0.5f;
                    float v = r * afSin[iR] + 0.5f;
                    texBuf.put(u).put(v);
                }


                i++;
            }


            BufferUtils.copyInternalVector3(posBuf, iSave, i);
            BufferUtils.copyInternalVector3(normBuf, iSave, i);


            if (textureMode == TextureMode.Original) {
                texBuf.put(1.0f).put(
                        0.5f * (fZFraction + 1.0f));
            } else if (textureMode == TextureMode.Projected) {
                texBuf.put(1.0f).put(
                        FastMath.INV_PI
                        * (FastMath.HALF_PI + FastMath.asin(fZFraction)));
            } else if (textureMode == TextureMode.Polar) {
                float r = (FastMath.HALF_PI - FastMath.abs(fAFraction)) / FastMath.PI;
                texBuf.put(r + 0.5f).put(0.5f);
            }


            i++;
        }


        vars.release();


        // south pole
        posBuf.position(i * 3);
        posBuf.put(0f).put(0f).put(-radius);

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Examples of com.jme3.util.TempVars

     *            1, 0} in jME.)
     */
    public void lookAt(Vector3f position, Vector3f upVector) {
        Vector3f worldTranslation = getWorldTranslation();


        TempVars vars = TempVars.get();


        Vector3f compVecA = vars.vect4;
      
        compVecA.set(position).subtractLocal(worldTranslation);
        getLocalRotation().lookAt(compVecA, upVector);        
        
        if ( getParent() != null ) {
            Quaternion rot=vars.quat1;
            rot =  rot.set(parent.getWorldRotation()).inverseLocal().multLocal(getLocalRotation());
            rot.normalizeLocal();
            setLocalRotation(rot);
        }
        vars.release();
        setTransformRefresh();
    }

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Examples of com.jme3.util.TempVars


        if (parent == null) {
            worldTransform.set(localTransform);
            refreshFlags &= ~RF_TRANSFORM;
        } else {
            TempVars vars = TempVars.get();


            Spatial[] stack = vars.spatialStack;
            Spatial rootNode = this;
            int i = 0;
            while (true) {
                Spatial hisParent = rootNode.parent;
                if (hisParent == null) {
                    rootNode.worldTransform.set(rootNode.localTransform);
                    rootNode.refreshFlags &= ~RF_TRANSFORM;
                    i--;
                    break;
                }


                stack[i] = rootNode;


                if ((hisParent.refreshFlags & RF_TRANSFORM) == 0) {
                    break;
                }


                rootNode = hisParent;
                i++;
            }


            vars.release();


            for (int j = i; j >= 0; j--) {
                rootNode = stack[j];
                //rootNode.worldTransform.set(rootNode.localTransform);
                //rootNode.worldTransform.combineWithParent(rootNode.parent.worldTransform);

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