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39 lines
1.4 KiB
C++
39 lines
1.4 KiB
C++
#ifndef OPENMW_COMPONENTS_NIFOSG_MATRIXTRANSFORM_H
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#define OPENMW_COMPONENTS_NIFOSG_MATRIXTRANSFORM_H
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#include <components/nif/niftypes.hpp>
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#include <osg/MatrixTransform>
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namespace NifOsg
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{
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class MatrixTransform : public osg::MatrixTransform
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{
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public:
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MatrixTransform() = default;
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MatrixTransform(const Nif::NiTransform& transform);
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MatrixTransform(const MatrixTransform& copy, const osg::CopyOp& copyop);
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META_Node(NifOsg, MatrixTransform)
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// Hack: account for Transform differences between OSG and NIFs.
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// OSG uses a 4x4 matrix, NIF's use a 3x3 rotationScale, float scale, and vec3 position.
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// Decomposing the original components from the 4x4 matrix isn't possible, which causes
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// problems when a KeyframeController wants to change only one of these components. So
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// we store the scale and rotation components separately here.
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float mScale{ 0.f };
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Nif::Matrix3 mRotationScale;
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// Utility methods to transform the node and keep these components up-to-date.
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// The matrix's components should not be overridden manually or using preMult/postMult
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// unless you're sure you know what you are doing.
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void setScale(float scale);
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void setRotation(const osg::Quat& rotation);
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void setRotation(const Nif::Matrix3& rotation);
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void setTranslation(const osg::Vec3f& translation);
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};
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}
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#endif
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