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osd.h
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osd.h
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#pragma once
// OSD
#include <opensubdiv/far/topologyDescriptor.h>
#include <opensubdiv/far/primvarRefiner.h>
#include <opensubdiv/far/patchTableFactory.h>
#include <opensubdiv/far/patchMap.h>
#include <opensubdiv/far/ptexIndices.h>
using namespace OpenSubdiv;
/// OSD VERTEX
struct osdVertex
{
// Minimal required interface ----------------------
osdVertex() {};
osdVertex(osdVertex const & src)
{
_position[0] = src._position[0];
_position[1] = src._position[1];
_position[2] = src._position[2];
};
void Clear(void * = 0) { _position[0] = _position[1] = _position[2] = 0.0f; };
void AddWithWeight(osdVertex const & src, float weight)
{
_position[0] += weight*src._position[0];
_position[1] += weight*src._position[1];
_position[2] += weight*src._position[2];
};
// Public interface ------------------------------------
void SetPoint(float x, float y, float z) { _position[0] = x; _position[1] = y; _position[2] = z; };
const float * GetPoint() const { return _position; };
float _position[3];
};
typedef osdVertex VertexPosition;
typedef osdVertex VertexColor;
//------------------------------------------------------------------------------
// Limit frame container implementation -- this interface is not strictly
// required but follows a similar pattern to Vertex.
//
struct LimitFrame {
void Clear(void * = 0)
{
_position[0] = _position[1] = _position[2] = 0.0f;
deriv1[0] = deriv1[1] = deriv1[2] = 0.0f;
deriv2[0] = deriv2[1] = deriv2[2] = 0.0f;
}
void AddWithWeight(osdVertex const & src,
float weight, float d1Weight, float d2Weight)
{
_position[0] += weight * src._position[0];
_position[1] += weight * src._position[1];
_position[2] += weight * src._position[2];
deriv1[0] += d1Weight * src._position[0];
deriv1[1] += d1Weight * src._position[1];
deriv1[2] += d1Weight * src._position[2];
deriv2[0] += d2Weight * src._position[0];
deriv2[1] += d2Weight * src._position[1];
deriv2[2] += d2Weight * src._position[2];
}
float _position[3],
deriv1[3],
deriv2[3];
LimitFrame() { Clear(); };
};