本文整理汇总了C#中System.Vector3.Multiply方法的典型用法代码示例。如果您正苦于以下问题：C# Vector3.Multiply方法的具体用法？C# Vector3.Multiply怎么用？C# Vector3.Multiply使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Vector3的用法示例。
在下文中一共展示了Vector3.Multiply方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CircleGeometry
public CircleGeometry(float radius=1,int segments=8,float thetaStart = 0, float thetaLength = Mathf.Tau)
{
segments = Mathf.Max(3, segments);
var uvs = new List<Vector2>();
vertices.Add(Vector3.Zero);
uvs.Add(Vector2.Half);
for(var i = 0f; i <= segments; i ++ )
{
var segment = thetaStart + i / segments * thetaLength;
var v = new Vector3(Mathf.Cos( segment ),radius * Mathf.Sin( segment ),0);
v.Multiply(radius);
vertices.Add(v);
uvs.Add(new Vector2(( v.x / radius + 1 ) / 2, ( v.y / radius + 1 ) / 2 ));
}
var n = Vector3.UnitZ;
for (var i = 1; i <= segments; i++)
{
faces.Add(new Face3(i, i + 1, 0, n));
var faceSet = new UVFaceSet(uvs[i], uvs[i + 1], Vector2.Half);
faceVertexUvs[0].Add(faceSet);
}
ComputeNormals();
BoundingSphere = new Sphere(Vector3.Zero,radius );
}示例2: doCollideWithWorld
/// <summary>
/// Detección de colisiones recursiva
/// </summary>
public void doCollideWithWorld(TgcBoundingSphere characterSphere, Vector3 movementVector, List<TgcBoundingBox> obstaculos, int recursionDepth)
{
//Limitar recursividad
if (recursionDepth > 5)
{
return;
}
//Ver si la distancia a recorrer es para tener en cuenta
float distanceToTravelSq = movementVector.LengthSq();
if (distanceToTravelSq < EPSILON)
{
return;
}
//Posicion deseada
Vector3 originalSphereCenter = characterSphere.Center;
Vector3 nextSphereCenter = originalSphereCenter + movementVector;
//Buscar el punto de colision mas cercano de todos los objetos candidatos
float minCollisionDistSq = float.MaxValue;
Vector3 realMovementVector = movementVector;
TgcBoundingBox.Face collisionFace = null;
TgcBoundingBox collisionObstacle = null;
Vector3 nearestPolygonIntersectionPoint = Vector3.Empty;
foreach (TgcBoundingBox obstaculoBB in obstaculos)
{
//Obtener los polígonos que conforman las 6 caras del BoundingBox
TgcBoundingBox.Face[] bbFaces = obstaculoBB.computeFaces();
foreach (TgcBoundingBox.Face bbFace in bbFaces)
{
Vector3 pNormal = TgcCollisionUtils.getPlaneNormal(bbFace.Plane);
TgcRay movementRay = new TgcRay(originalSphereCenter, movementVector);
float brutePlaneDist;
Vector3 brutePlaneIntersectionPoint;
if (!TgcCollisionUtils.intersectRayPlane(movementRay, bbFace.Plane, out brutePlaneDist, out brutePlaneIntersectionPoint))
{
continue;
}
float movementRadiusLengthSq = Vector3.Multiply(movementVector, characterSphere.Radius).LengthSq();
if (brutePlaneDist * brutePlaneDist > movementRadiusLengthSq)
{
continue;
}
//Obtener punto de colisión en el plano, según la normal del plano
float pDist;
Vector3 planeIntersectionPoint;
Vector3 sphereIntersectionPoint;
TgcRay planeNormalRay = new TgcRay(originalSphereCenter, -pNormal);
bool embebbed = false;
bool collisionFound = false;
if (TgcCollisionUtils.intersectRayPlane(planeNormalRay, bbFace.Plane, out pDist, out planeIntersectionPoint))
{
//Ver si el plano está embebido en la esfera
if (pDist <= characterSphere.Radius)
{
embebbed = true;
//TODO: REVISAR ESTO, caso embebido a analizar con más detalle
sphereIntersectionPoint = originalSphereCenter - pNormal * characterSphere.Radius;
}
//Esta fuera de la esfera
else
{
//Obtener punto de colisión del contorno de la esfera según la normal del plano
sphereIntersectionPoint = originalSphereCenter - Vector3.Multiply(pNormal, characterSphere.Radius);
//Disparar un rayo desde el contorno de la esfera hacia el plano, con el vector de movimiento
TgcRay sphereMovementRay = new TgcRay(sphereIntersectionPoint, movementVector);
if (!TgcCollisionUtils.intersectRayPlane(sphereMovementRay, bbFace.Plane, out pDist, out planeIntersectionPoint))
{
//no hay colisión
continue;
}
}
//Ver si planeIntersectionPoint pertenece al polígono
Vector3 newMovementVector;
float newMoveDistSq;
Vector3 polygonIntersectionPoint;
if (pointInBounbingBoxFace(planeIntersectionPoint, bbFace))
{
if (embebbed)
{
//TODO: REVISAR ESTO, nunca debería pasar
//throw new Exception("El polígono está dentro de la esfera");
}
polygonIntersectionPoint = planeIntersectionPoint;
collisionFound = true;
}
else
{
//.........这里部分代码省略.........
示例3: SetupMatrices
// Setup the world, view, and projection matrices.
private void SetupMatrices()
{
// World Matrix:
const int TICKS_PER_REV = 10000;
double angle = Environment.TickCount * (2 * Math.PI) / TICKS_PER_REV;
m_Device.Transform.World = Matrix.RotationY((float)angle);
// View Matrix:
Vector3 camera_position = new Vector3(0, 10, -20);
camera_position.Normalize();
camera_position.Multiply(m_Range);
m_Device.Transform.View = Matrix.LookAtLH(
camera_position,
new Vector3(0, 0, 0),
new Vector3(0, 1, 0));
// Projection Matrix:
// Perspective transformation defined by:
// Field of view Pi / 4
// Aspect ratio 1
// Near clipping plane Z = 1
// Far clipping plane Z = 100
m_Device.Transform.Projection =
Matrix.PerspectiveFovLH((float)(Math.PI / 4), 1, 1, 100);
}