GridResampleOp< Sampler, TransformerType > Class Template Reference

GridResampleOp is a functor class for use with UTvdbProcessTypedGrid() that samples an input grid into an output grid of the same type through a given transform. More...

#include <openvdb_houdini/UT_VDBTools.h>

Public Member Functions
	GridResampleOp (GridPtr &outGrid, const TransformerType &t)
template<typename GridType >
void	operator() (const GridType &inGrid)

Detailed Description

template<typename Sampler, typename TransformerType>
class openvdb_houdini::GridResampleOp< Sampler, TransformerType >

GridResampleOp is a functor class for use with UTvdbProcessTypedGrid() that samples an input grid into an output grid of the same type through a given transform.

The output grid's transform is unchanged by this operation.

See also

GridTransformOp, GridResampleToMatchOp

Example:

namespace {
    // Class that implements GridResampler's Transformer interface
    struct MyXform
    {
        bool isAffine() const { ... }
        openvdb::Vec3d transform(const openvdb::Vec3d&) const { ... }
        openvdb::Vec3d invTransform(const openvdb::Vec3d&) const { ... }
    };
}

const Grid& inGrid = ...; // generic reference to a grid of any type

// Create a new, empty output grid of the same (so far, unknown) type
// as the input grid and with the same transform and metadata.
GridPtr outGrid = inGrid.copyGridWithNewTree();

// Resolve the input grid's type and resample it into the output grid,
// using a trilinear sampling kernel.
GridResampleOp<openvdb::tools::BoxSampler, MyXform> op(outGrid, MyXform());
inGrid.apply<openvdb_houdini::ScalarGridTypes>(op);

Constructor & Destructor Documentation

GridResampleOp ( GridPtr &  outGrid, const TransformerType &  t  )

inline

Parameters

outGrid	a generic pointer to an output grid of the same type as the grid to be resampled
t	an object that implements GridResampler's Transformer interface

Note

GridResampleOp makes an internal copy of t.

Member Function Documentation

void operator() ( const GridType &  inGrid )

inline