void Magic3D::Object::applyMatrix(Matrix4 matrix)
{
Vector3 tmpPos = matrix.getTranslation();
Matrix3 mRot = matrix.getUpper3x3();
Vector3 tmpScale = Vector3(length(mRot.getCol0()), length(mRot.getCol1()), length(mRot.getCol2()));
mRot.setCol0(normalize(mRot.getCol0()));
mRot.setCol1(normalize(mRot.getCol1()));
mRot.setCol2(normalize(mRot.getCol2()));
setPosition(tmpPos);
setRotation(Quaternion(mRot));
setScale(tmpScale);
}
Magic3D::Matrix4 Magic3D::Object::getMatrixFromParent()
{
Matrix4 m = getMatrix();
if (getParent())
{
m = getParent()->getMatrixFromParent();
if (getParentBone())
{
m = m * getParentBone()->getMatrixFromParent();
}
if (isParentPosition() && isParentRotation() && isParentScale())
{
m = m * getMatrix();
}
else
{
Vector3 tmpPos = m.getTranslation();
Matrix3 mRot = m.getUpper3x3();
Vector3 tmpScale = Vector3(length(mRot.getCol0()), length(mRot.getCol1()), length(mRot.getCol2()));
mRot.setCol0(normalize(mRot.getCol0()));
mRot.setCol1(normalize(mRot.getCol1()));
mRot.setCol2(normalize(mRot.getCol2()));
m = Matrix4::identity();
if (isParentRotation())
{
m = m * Matrix4(mRot, Vector3(0.0f, 0.0f, 0.0f));
}
if (isParentPosition())
{
m.setTranslation(tmpPos);
}
if (isParentScale())
{
m = appendScale(m, tmpScale); // Faster than creating and multiplying a scale transformation matrix.
}
m = m * getMatrix();
}
}
if (billboard != eBILLBOARD_NONE)
{
Camera* camera = Renderer::getInstance()->getCurrentViewPort()->getPerspective();
Matrix3 view = camera->getView().getUpper3x3();
Matrix3 bb = Matrix3::identity();
switch (billboard)
{
case eBILLBOARD_HORIZONTAL:
{
Vector3 v1 = Vector3(1.0f, 0.0f, 0.0f);
Vector3 v2 = view.getCol0();
float angle = Math::angle(v1, v2, Vector3(0.0f, 1.0f, 0.0f));
bb = Matrix3::rotationY(angle);
break;
}
case eBILLBOARD_VERTICAL:
{
Vector3 v1 = Vector3(0.0f, 1.0f, 0.0f);
Vector3 v2 = view.getCol1();
float angle = Math::angle(v1, v2, Vector3(1.0f, 0.0f, 0.0f));
bb = Matrix3::rotationX(angle);
break;
}
default:
{
bb = view;
break;
}
}
bb = inverse(m.getUpper3x3()) * inverse(bb);
m = m * Matrix4(bb, Vector3(0.0f, 0.0f, 0.0f));
}
return m;
}
