本文整理汇总了C++中Mat4::setRows方法的典型用法代码示例。如果您正苦于以下问题：C++ Mat4::setRows方法的具体用法？C++ Mat4::setRows怎么用？C++ Mat4::setRows使用的例子？那么, 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Mat4的用法示例。
在下文中一共展示了Mat4::setRows方法的1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: update
//==============================================================================
void FollowPathEvent::update(F32 prevUpdateTime, F32 crntTime)
{
MoveComponent& move = movableSceneNode->getComponent<MoveComponent>();
I pointA = 0;
I pointB = 0;
// Calculate the current distance. Clamp it to max distance
F32 crntDistance = distPerTime * (crntTime - getStartTime());
ANKI_ASSERT(crntDistance >= 0.0);
crntDistance = std::min(crntDistance, path->getDistance());
const I pointsCount = path->getPoints().size();
ANKI_ASSERT(pointsCount > 1);
// Find the points that we lie between
for(I i = 1; i < pointsCount; i++)
{
const PathPoint& ppa = path->getPoints()[i - 1];
const PathPoint& ppb = path->getPoints()[i];
if(crntDistance > ppa.getDistanceFromFirst()
&& crntDistance <= ppb.getDistanceFromFirst())
{
pointA = i - 1;
pointB = i;
break;
}
}
ANKI_ASSERT(pointA < pointsCount && pointB < pointsCount);
I preA = std::max((I)0, pointA - 1);
I postB = std::min(pointsCount - 1, pointB + 1);
/*I pminus2 = std::max((I)0, pointA - 2);
I pminus1 = std::max((I)0, pointA - 1);*/
// Calculate the u [0.0, 1.0]
F32 u = path->getPoints()[pointB].getDistance() + getEpsilon<F32>();
ANKI_ASSERT(u != 0.0);
const F32 c = crntDistance
- path->getPoints()[pointA].getDistanceFromFirst();
u = c / u;
// Calculate and set new position and rotation for the movable
/*Vec3 newPos = cubicInterpolate(
path->getPoints()[preA].getPosition(),
path->getPoints()[pointA].getPosition(),
path->getPoints()[pointB].getPosition(),
path->getPoints()[postB].getPosition(),
u);*/
Vec3 newPos = interpolate(
path->getPoints()[pointA].getPosition(),
path->getPoints()[pointB].getPosition(),
u);
{
F32 u2 = u * u;
Vec4 us(1, u, u2, u2 * u);
F32 t = 0.7;
Mat4 tentionMat(
0.0, 1.0, 0.0, 0.0,
-t, 0.0, t, 0.0,
2.0 * t, t - 3.0, 3.0 - 2.0 * t, -t,
-t, 2.0 - t, t - 2.0, t);
Vec4 tmp = us * tentionMat;
Mat4 posMat;
posMat.setRows(
Vec4(path->getPoints()[preA].getPosition(), 1.0),
Vec4(path->getPoints()[pointA].getPosition(), 1.0),
Vec4(path->getPoints()[pointB].getPosition(), 1.0),
Vec4(path->getPoints()[postB].getPosition(), 1.0));
Vec4 finalPos = tmp * posMat;
newPos = finalPos.xyz();
}
Quat newRot = path->getPoints()[pointA].getRotation().slerp(
path->getPoints()[pointB].getRotation(),
u);
F32 scale = move.getLocalTransform().getScale();
Transform trf;
trf.setOrigin(newPos);
trf.setRotation(Mat3(newRot));
trf.setScale(scale);
move.setLocalTransform(trf);
}