Esempio n. 1
0
 public static bool Intersects(Ray ray, Vector3 vertex1, Vector3 vertex2, Vector3 vertex3, out float distance, out float barycentricU, out float barycentricV)
 {
     unsafe
     {
         fixed(float *pinnedDist = &distance)
         {
             fixed(float *pinnedU = &barycentricU)
             {
                 fixed(float *pinnedV = &barycentricV)
                 {
                     if (IDllImportApi.v3dxIntersectTri(&vertex1,
                                                        &vertex2, &vertex3,
                                                        &ray.Position, &ray.Direction,
                                                        pinnedU, pinnedV, pinnedDist) != 0)
                     {
                         return(true);
                     }
                     else
                     {
                         return(false);
                     }
                 }
             }
         }
     }
 }
Esempio n. 2
0
        /// <summary>
        /// 重载"*"号操作符
        /// </summary>
        /// <param name="plane">平面对象</param>
        /// <param name="scale">缩放值</param>
        /// <returns>返回计算后的平面对象</returns>
        public static Plane operator *(Plane plane, float scale)
        {
            Plane result;

            unsafe
            {
                IDllImportApi.v3dxPlaneScale((Plane *)(&result), (Plane *)(&plane), scale);
            }
            return(result);
        }
Esempio n. 3
0
        public static Plane Multiply(Plane plane, float scale)
        {
            Plane result;

            unsafe
            {
                IDllImportApi.v3dxPlaneScale((Plane *)&result, (Plane *)&plane, scale);
            }

            return(result);
        }
Esempio n. 4
0
 public static void Multiply(ref Plane plane, float scale, out Plane result)
 {
     unsafe
     {
         fixed(Plane *pResult = &result)
         {
             fixed(Plane *pPlane = &plane)
             {
                 IDllImportApi.v3dxPlaneScale(pResult, pPlane, scale);
             }
         }
     }
 }
Esempio n. 5
0
        /// <summary>
        /// 根据点列表建立球体包围盒
        /// </summary>
        /// <param name="points">点列表</param>
        /// <returns>返回建立的球体包围盒</returns>
        public static BoundingSphere FromPoints(Vector3[] points)
        {
            BoundingSphere sphere;

            unsafe
            {
                fixed(Vector3 *pinnedPoints = &points[0])
                {
                    int hr = IDllImportApi.v3dxComputeBoundingSphere(pinnedPoints, (UInt32)points.Length, sizeof(float) * 3, &sphere.Center, &sphere.Radius);

                    if (hr != 0)
                    {
                        return(BoundingSphere.DefaultSphere);
                    }
                }
            }
            return(sphere);
        }
Esempio n. 6
0
 public static bool Intersects(ref Plane plane, ref Vector3 start, ref Vector3 end, out Vector3 intersectPoint)
 {
     unsafe
     {
         fixed(Plane *pPlane = &plane)
         {
             fixed(Vector3 *pStart = &start)
             {
                 fixed(Vector3 *pEnd = &end)
                 {
                     fixed(Vector3 *pIntersectPoint = &intersectPoint)
                     {
                         if (0 == (int)IDllImportApi.v3dxPlaneIntersectLine(pIntersectPoint, pPlane, pStart, pEnd))
                         {
                             return(false);
                         }
                         return(true);
                     }
                 }
             }
         }
     }
 }