本文整理汇总了Java中org.rajawali3d.math.vector.Vector3.dot方法的典型用法代码示例。如果您正苦于以下问题：Java Vector3.dot方法的具体用法？Java Vector3.dot怎么用？Java Vector3.dot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org.rajawali3d.math.vector.Vector3的用法示例。
在下文中一共展示了Vector3.dot方法的4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Java代码示例。
示例1: intersectRayPlane
import org.rajawali3d.math.vector.Vector3; //导入方法依赖的package包/类
/**
* Intersects a ray defined by a start and end point and a {@link Plane}.
* @param rayStart Startpoint of the ray
* @param rayEnd Endpoint of the ray
* @param plane The plane
* @param hitPoint The intersection point (optional)
* @return True if there is an intersection, false otherwise.
*/
public static boolean intersectRayPlane(Vector3 rayStart, Vector3 rayEnd, Plane plane, Vector3 hitPoint) {
Vector3 rayDir = Vector3.subtractAndCreate(rayEnd, rayStart);
double denorm = rayDir.dot(plane.getNormal());
if (denorm != 0) {
double t = -(rayStart.dot(plane.getNormal()) + plane.getD()) / denorm;
if (t < 0) return false;
if (hitPoint != null) hitPoint.addAndSet(rayStart, Vector3.scaleAndCreate(rayDir, t));
return true;
} else if (plane.getPointSide(rayStart) == Plane.PlaneSide.ONPLANE) {
if (hitPoint != null) hitPoint.setAll(rayStart);
return true;
} else {
return false;
}
}
示例2: set
import org.rajawali3d.math.vector.Vector3; //导入方法依赖的package包/类
public void set(Vector3 point1, Vector3 point2, Vector3 point3) {
Vector3 v1 = new Vector3();
Vector3 v2 = new Vector3();
v1.subtractAndSet(point1, point2);
v2.subtractAndSet(point3, point2);
mNormal = v1.cross(v2);
mNormal.normalize();
mD = -point1.dot(mNormal);
}
示例3: getPointSide
import org.rajawali3d.math.vector.Vector3; //导入方法依赖的package包/类
public PlaneSide getPointSide(Vector3 point) {
double distance = Vector3.dot(mNormal, point) + mD;
if(distance == 0) return PlaneSide.ONPLANE;
else if(distance < 0) return PlaneSide.BACK;
else return PlaneSide.FRONT;
}
示例4: isFrontFacing
import org.rajawali3d.math.vector.Vector3; //导入方法依赖的package包/类
public boolean isFrontFacing(Vector3 direction) {
double dot = Vector3.dot(mNormal, direction);
return dot <= 0;
}