本文整理汇总了C++中Mat4f::translatePreMultiply方法的典型用法代码示例。如果您正苦于以下问题：C++ Mat4f::translatePreMultiply方法的具体用法？C++ Mat4f::translatePreMultiply怎么用？C++ Mat4f::translatePreMultiply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Mat4f的用法示例。
在下文中一共展示了Mat4f::translatePreMultiply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: createObliqueCylinder
//.........这里部分代码省略.........
// Create vertices
uint zPoly;
for (zPoly = 0; zPoly <= numPolysZDir; zPoly++)
{
float fT = static_cast<float>((1.0/numPolysZDir)*(zPoly));
float radius = bottomRadius + fT*(topRadius - bottomRadius);
Vec3f center(fT*topOffsetX, fT*topOffsetY, fT*height);
Vec3fArray verts;
verts.reserve(numSlices);
Vec3f point = Vec3f::ZERO;
double da = 2*PI_D/numSlices;
uint i;
for (i = 0; i < numSlices; i++)
{
// Precompute this one (A = i*da;)
double sinA = Math::sin(i*da);
double cosA = Math::cos(i*da);
point.x() = static_cast<float>(-sinA*radius);
point.y() = static_cast<float>( cosA*radius);
point.z() = 0;
point += center;
verts.add(point);
}
uint baseNodeIdx = builder->addVertices(verts);
// First time we only create the sourceNodes
if (zPoly != 0)
{
uint offset = baseNodeIdx - numSlices;
uint piConn[4] = { 0, 0, 0, 0 };
// Normals facing outwards
if (normalsOutwards)
{
uint i;
for (i = 0; i < numSlices; i++)
{
piConn[0] = offset + i;
piConn[1] = offset + i + 1;
piConn[2] = offset + i + numSlices + 1;
piConn[3] = offset + i + numSlices;
if (i == numSlices - 1)
{
piConn[1] = offset;
piConn[2] = offset + numSlices;
}
builder->addQuad(piConn[0], piConn[1], piConn[2], piConn[3]);
}
}
// Normals facing inwards
else
{
uint i;
for (i = 0; i < numSlices; i++)
{
piConn[0] = offset + i + 1;
piConn[1] = offset + i;
piConn[2] = offset + i + numSlices;
piConn[3] = offset + i + numSlices + 1;
if (i == numSlices - 1)
{
piConn[0] = offset;
piConn[3] = offset + numSlices;
}
builder->addQuad(piConn[0], piConn[1], piConn[2], piConn[3]);
}
}
}
}
if (closedBot)
{
createDisc(bottomRadius, numSlices, builder);
}
if (closedTop)
{
uint startIdx = builder->vertexCount();
createDisc(topRadius, numSlices, builder);
uint endIdx = builder->vertexCount() - 1;
// Translate the top disc sourceNodes, also flip it to get the normals the right way
Mat4f mat = Mat4f::fromRotation(Vec3f(1.0f, 0.0f, 0.0f), Math::toRadians(180.0f));
mat.translatePreMultiply(Vec3f(topOffsetX, topOffsetY, height));
builder->transformVertexRange(startIdx, endIdx, mat);
}
}