MRMeshC/MRVDBConversions.h

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#pragma once
#include "MRVoxelsFwd.h"
#include "MRAffineXf.h"
 
MR_EXTERN_C_BEGIN
 
// Conversion type
typedef enum MRMeshToVolumeSettingsType
{
    MRMeshToVolumeSettingsTypeSigned, // only closed meshes can be converted with signed type
    MRMeshToVolumeSettingsTypeUnsigned // this type leads to shell like iso-surfaces
} MRMeshToVolumeSettingsType;
 
// Parameters structure for meshToVolume function
typedef struct MRMeshToVolumeSettings
{
    MRMeshToVolumeSettingsType type; // Conversion type
    float surfaceOffset; // the number of voxels around surface to calculate distance in (should be positive)
    MRVector3f voxelSize;
    MRAffineXf3f worldXf; // mesh initial transform
    MRAffineXf3f* outXf; // optional output: xf to original mesh (respecting worldXf)
    MRProgressCallback cb;
} MRMeshToVolumeSettings;
 
MRMESHC_API MRMeshToVolumeSettings mrVdbConversionsMeshToVolumeSettingsNew( void );
 
// eval min max value from FloatGrid
MRMESHC_API void mrVdbConversionsEvalGridMinMax( const MRFloatGrid* grid, float* min, float* max );
 
// convert mesh to volume in (0,0,0)-(dim.x,dim.y,dim.z) grid box
MRMESHC_API MRVdbVolume mrVdbConversionsMeshToVolume( const MRMesh* mesh, const MRMeshToVolumeSettings* settings, MRString** errorStr );
 
// fills VdbVolume data from FloatGrid (does not fill voxels size, cause we expect it outside)
MRMESHC_API MRVdbVolume mrVdbConversionsFloatGridToVdbVolume( const MRFloatGrid* grid );
 
typedef struct MRGridToMeshSettings
{
    MRVector3f voxelSize;
    float isoValue;
    float adaptivity;
    int maxFaces;
    int maxVertices;
    bool relaxDisorientedTriangles;
    MRProgressCallback cb;
} MRGridToMeshSettings;
 
MRMESHC_API MRGridToMeshSettings mrVdbConversionsGridToMeshSettingsNew( void );
 
MRMESHC_API MRMesh* mrVdbConversionsGridToMesh( const MRFloatGrid* grid, const MRGridToMeshSettings* settings, MRString** errorStr );
 
MR_EXTERN_C_END