Exemple #1
0
    void Start()
    {
        //GetComponent<MeshFilter>().sharedMesh.MarkDynamic();

        if (Mathf.Abs(cubeWidth) < 0.0001f)
        {
            cubeWidth = 0.0001f;
        }
        if (Mathf.Abs(cubeHeight) < 0.0001f)
        {
            cubeHeight = 0.0001f;
        }
        if (Mathf.Abs(cubeDepth) < 0.0001f)
        {
            cubeDepth = 0.0001f;
        }

        if (inputMesh != null)
        {
            shape = Shape.CreateShapeFromMesh(inputMesh);
        }
        else
        {
            shape = CubeShape.CreateCubeShape(1, false, new Vector3(cubeWidth, cubeHeight, cubeDepth));
        }


        output = new DestructionVertexData();
        output.prepareVertexData(numVertices);

        iterativeStack = new DestructionEffectIterative.AppendConsumeStack();
        iterativeStack.prepareStack(numVertices / 6);
    }
Exemple #2
0
        public static void generateTrianglesFromShape(DestructionVertexData output, AppendConsumeStack stack, Shape shape, DestructionShapeParams shapeParams, DestructionSensor[] sensors)
        {
            //rhi::debugDraw::addSphere( toVector3( sensor.posLSWithScale ), sensor.radius, 0xFF0000FF, true );
            tmpUV[0] = Vector3.zero;
            tmpUV[1] = Vector3.zero;
            tmpUV[2] = Vector3.zero;

            for (int itri = 0; itri < shape.numIndices_; itri += 3)
            {
                int itri0 = shape.indices_[itri];
                int itri1 = shape.indices_[itri + 1];
                int itri2 = shape.indices_[itri + 2];

                tmpP[0] = shape.GetPosition(itri0);
                tmpP[1] = shape.GetPosition(itri1);
                tmpP[2] = shape.GetPosition(itri2);

                tmpN[0] = shape.GetNormal(itri0);
                tmpN[1] = shape.GetNormal(itri1);
                tmpN[2] = shape.GetNormal(itri2);

                //Vector3 t[3] =
                //{
                //    Vector3( picoPolyShape::getTangent( shape, itri0 ) ),
                //    Vector3( picoPolyShape::getTangent( shape, itri1 ) ),
                //    Vector3( picoPolyShape::getTangent( shape, itri2 ) ),
                //};

                if( shape.uvs_ != null && shape.uvs_.Length > 0 )
                {
                    tmpUV[0] = shape.GetTexcoord(itri0);
                    tmpUV[1] = shape.GetTexcoord(itri1);
                    tmpUV[2] = shape.GetTexcoord(itri2);
                }

                stack.appendTriangle(tmpP, tmpN, tmpUV);

                if( stack.full() )
                {
                    _processIterative(output, stack, sensors, shapeParams);
                }
            }
            //process remaining triangles from stack
            _processIterative(output, stack, sensors, shapeParams);
        }
Exemple #3
0
        static void _processIterative(DestructionVertexData output, AppendConsumeStack stack, DestructionSensor[] sensors, DestructionShapeParams shapeParams)
        {
            int numSensors = sensors.Length;

            while (!stack.empty())
            {
                bool collisions = false;

                //consume one triangle from a stack
                stack.consumeTriangle(tmpP, tmpN, tmpUV);

                Profiler.BeginSample("_testCollision");
                for (uint i = 0; i < numSensors && !collisions; ++i)
                {
                    collisions = _testCollision(tmpP, sensors[i].posLS, sensors[i].radius, shapeParams.scale);
                }
                Profiler.EndSample();

                if (!collisions)
                {
                    _processNoCollision(output, tmpP, tmpN, tmpUV, shapeParams.extrude, shapeParams.scaleInv);
                    continue;
                }

                //const float VARIATION_THRESHOLD = 0.2f;

                Vector3 ea = tmpP[1] - tmpP[0];
                Vector3 eb = tmpP[2] - tmpP[1];
                Vector3 ec = tmpP[0] - tmpP[2];

                scaledLen[0] = Vector3.Scale(ea, shapeParams.scale).sqrMagnitude; // length squared
                scaledLen[1] = Vector3.Scale(eb, shapeParams.scale).sqrMagnitude; // length squared
                scaledLen[2] = Vector3.Scale(ec, shapeParams.scale).sqrMagnitude; // length squared

                float x = shapeParams.voxelRadius * 2.0f;
                float xsqr = x * x;

                Profiler.BeginSample("_partitioning");

                uint maxi = getMaxIndex(scaledLen);
                int partition = 0;

                if (scaledLen[maxi] > xsqr)
                {
                    partition |= 1 << (int)maxi;

                    float maxiLen = scaledLen[maxi];
                    const float THRESHOLD = 2.5f;

                    if (maxi == 0)
                    {
                        partition |= ((maxiLen / scaledLen[1]) < THRESHOLD) ? 1 << 1 : 0;
                        partition |= ((maxiLen / scaledLen[2]) < THRESHOLD) ? 1 << 2 : 0;
                    }
                    else if (maxi == 1)
                    {
                        partition |= ((maxiLen / scaledLen[0]) < THRESHOLD) ? 1 << 0 : 0;
                        partition |= ((maxiLen / scaledLen[2]) < THRESHOLD) ? 1 << 2 : 0;
                    }
                    else
                    {
                        partition |= ((maxiLen / scaledLen[0]) < THRESHOLD) ? 1 << 0 : 0;
                        partition |= ((maxiLen / scaledLen[1]) < THRESHOLD) ? 1 << 1 : 0;
                    }
                }

                Profiler.EndSample(); //"_partitioning"

                if (partition != 0)
                {
                    int numChildVertices = bitcount(partition);

                    if (numChildVertices == 1 || numChildVertices == 2) // two new triangles
                    {
                        Profiler.BeginSample("_twoNewTriangles");
 
                        // select longest edge

                        uint maxindex = (scaledLen[0] > scaledLen[1]) ? (uint)0 : 1;
                        maxindex = (scaledLen[maxindex] > scaledLen[2]) ? maxindex : 2;

                        if (maxindex == 0)
                        {
                            /*
                                            2
                                           *  *
                                         *      *
                                       *          *
                                     *              *
                                   *                  *
                                 *                      *
                               *                          *
                              0-------------3---------------1
                              */
                            Vector3 tmpP3 = tmpP[0] + ea * 0.5f;
                            Vector2 tmpUV3 = Vector3.Lerp(tmpUV[0], tmpUV[1], 0.5f);
                            Vector3 tmpN3 = Vector3.Normalize(tmpN[0] + tmpN[1]);

                            stack.appendTriangle(tmpP[0], tmpP3, tmpP[2], tmpN[0], tmpN3, tmpN[2], tmpUV[0], tmpUV3, tmpUV[2]);
                            stack.appendTriangle(tmpP3, tmpP[1], tmpP[2], tmpN3, tmpN[1], tmpN[2], tmpUV3, tmpUV[1], tmpUV[2]);
                        }
                        else if (maxindex == 1)
                        {
                            /*
                                            2
                                           * *
                                         *     *
                                       *         *
                                     *             3
                                   *                 *
                                 *                     *
                               *                         *
                              0----------------------------1
                              */
                            Vector3 tmpP3 = tmpP[1] + eb * 0.5f;
                            Vector2 tmpUV3 = Vector3.Lerp(tmpUV[1], tmpUV[2], 0.5f);
                            Vector3 tmpN3 = Vector3.Normalize(tmpN[1] + tmpN[2]);

                            stack.appendTriangle(tmpP[0], tmpP[1], tmpP3, tmpN[0], tmpN[1], tmpN3, tmpUV[0], tmpUV[1], tmpUV3);
                            stack.appendTriangle(tmpP[0], tmpP3, tmpP[2], tmpN[0], tmpN3, tmpN[2], tmpUV[0], tmpUV3, tmpUV[2]);
                        }
                        else
                        {
                            /*
                                            2
                                           * *
                                         *     *
                                       *         *
                                     3             *
                                   *                 *
                                 *                     *
                               *                         *
                              0----------------------------1
                              */
                            Vector3 tmpP3 = tmpP[2] + ec * 0.5f;
                            Vector2 tmpUV3 = Vector3.Lerp(tmpUV[2], tmpUV[0], 0.5f);
                            Vector3 tmpN3 = Vector3.Normalize(tmpN[2] + tmpN[0]);

                            stack.appendTriangle(tmpP[0], tmpP[1], tmpP3, tmpN[0], tmpN[1], tmpN3, tmpUV[0], tmpUV[1], tmpUV3);
                            stack.appendTriangle(tmpP[1], tmpP[2], tmpP3, tmpN[1], tmpN[2], tmpN3, tmpUV[1], tmpUV[2], tmpUV3);
                        }

                        Profiler.EndSample();// "_twoNewTriangles"
                    }
                    else //three new triangles
                    {
                        Profiler.BeginSample("_threeNewTriangles");
                        /*
                                        2
                                       *| *
                                     *  |   *
                                   *    |     *
                                  *     |       *
                                *       3         *
                              *     *       *       *
                             * *                 *   *
                           0---------------------------1


                           */

                        const float ONE_OVER_THREE = 1.0f / 3.0f;

                        //Vector3 newPosition = 
                        Vector3 tmpP3 = (tmpP[0] + tmpP[1] + tmpP[2]) * ONE_OVER_THREE;
                        Vector2 tmpUV3 = (tmpUV[0] + tmpUV[1] + tmpUV[2]) * ONE_OVER_THREE;
                        Vector3 tmpN3 = (tmpN[0] + tmpN[1] + tmpN[2]) * ONE_OVER_THREE;

                        //static ushort[] triIndices = //[3 * 3] =
                        //{
                        //    0,1,3,
                        //    1,2,3,
                        //    2,0,3,
                        //};

                        stack.appendTriangle(tmpP[0], tmpP[1], tmpP3, tmpN[0], tmpN[1], tmpN3, tmpUV[0], tmpUV[1], tmpUV3);
                        stack.appendTriangle(tmpP[1], tmpP[2], tmpP3, tmpN[1], tmpN[2], tmpN3, tmpUV[1], tmpUV[2], tmpUV3);
                        stack.appendTriangle(tmpP[2], tmpP[0], tmpP3, tmpN[2], tmpN[0], tmpN3, tmpUV[2], tmpUV[0], tmpUV3);

                        Profiler.EndSample();// "_threeNewTriangles"
                   }
                }
                else
                {
                    _processWithCollision(output, tmpP, tmpN, tmpUV, sensors, shapeParams);
                }
            }
        }