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perspectivecamera.cpp
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perspectivecamera.cpp
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#include "perspectivecamera.h"
#if defined(__APPLE__) || defined(MACOSX)
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif
using namespace Micromachines;
PerspectiveCamera::PerspectiveCamera(double fovy, double zNear, double zFar) : Camera(zNear, zFar), _fovy(fovy)
{
_ratio = 1.0f;
}
PerspectiveCamera::~PerspectiveCamera()
{
}
void PerspectiveCamera::update()
{
}
void Micromachines::PerspectiveCamera::computeProjectionMatrixReshape(GLsizei w, GLsizei h)
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(_fovy, _ratio, _near, _far);
}
void PerspectiveCamera::computeProjectionMatrix()
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(_fovy, _ratio, _near, _far);
}
void PerspectiveCamera::computeVisualizationMatrix(float aspect)
{
if (_ratio < aspect)
glScalef(_ratio / aspect, 1., 1.);
else
glScalef(1., aspect / _ratio, 1.);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(getPosition().getX(), getPosition().getY(), getPosition().getZ(),
getCameraCenter().getX(), getCameraCenter().getY(), getCameraCenter().getZ(),
getCameraUp().getX(), getCameraUp().getY(), getCameraUp().getZ());
}