celestia/src/celengine/spheremesh.h

66 lines
2.0 KiB
C++

// spheremesh.h
//
// Copyright (C) 2001-2009, the Celestia Development Team
// Original version by Chris Laurel <claurel@gmail.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
#ifndef _CELENGINE_SPHEREMESH_H_
#define _CELENGINE_SPHEREMESH_H_
// IMPORTANT: This file is a relic from the early days of Celestia.
// Its sole function now is to handle the now-deprecated .cms mesh files;
// it will eventually be removed from Celestia.
#include <celengine/dispmap.h>
#include <celmodel/mesh.h>
using namespace cmod;
/*! The SphereMesh class is used to generate displacement mapped
* spheres when loading the now-deprecated .cms geometry files.
* It remains in the Celestia code base for backward compatibility,
* and it's use is discouraged.
*/
class SphereMesh
{
public:
SphereMesh(float radius, int _nRings, int _nSlices);
SphereMesh(const Eigen::Vector3f& size, int _nRings, int _nSlices);
SphereMesh(const Eigen::Vector3f& size,
const DisplacementMap& dispmap,
float height = 1.0f);
SphereMesh(const Eigen::Vector3f& size,
int _nRings, int _nSlices,
DisplacementMapFunc func,
void* info);
~SphereMesh();
//! Convert this object into a standard Celestia mesh.
Mesh* convertToMesh() const;
private:
void createSphere(float radius, int nRings, int nSlices);
void generateNormals();
void scale(const Eigen::Vector3f&);
void fixNormals();
void displace(const DisplacementMap& dispmap, float height);
void displace(DisplacementMapFunc func, void* info);
int nRings;
int nSlices;
int nVertices;
float* vertices;
float* normals;
float* texCoords;
float* tangents;
int nIndices;
unsigned short* indices;
};
#endif // _CELENGINE_SPHEREMESH_H_