C++ (Cpp) glUnProject Examples

Example #1

File: view.cpp Project: tschmidt23/Pangolin

void View::GetCamCoordinates(const OpenGlRenderState& cam_state, double winx, double winy, double winzdepth, GLdouble& x, GLdouble& y, GLdouble& z) const
{
    const GLint viewport[4] = {v.l,v.b,v.w,v.h};
    const OpenGlMatrix proj = cam_state.GetProjectionMatrix();
#ifndef HAVE_GLES
    glUnProject(winx, winy, winzdepth, Identity4d, proj.m, viewport, &x, &y, &z);
#else
    glUnProject(winx, winy, winzdepth, Identity4f, proj.m, viewport, &x, &y, &z);
#endif
}

Example #2

File: view.cpp Project: tschmidt23/Pangolin

void View::GetObjectCoordinates(const OpenGlRenderState& cam_state, double winx, double winy, double winzdepth, GLdouble& x, GLdouble& y, GLdouble& z) const
{
    const GLint viewport[4] = {v.l,v.b,v.w,v.h};
    const OpenGlMatrix proj = cam_state.GetProjectionMatrix();
    const OpenGlMatrix mv = cam_state.GetModelViewMatrix();
    glUnProject(winx, winy, winzdepth, mv.m, proj.m, viewport, &x, &y, &z);
}

Example #3

File: handler.cpp Project: jiapei100/Pangolin

void Handler3D::PixelUnproject( View& view, GLprecision winx, GLprecision winy, GLprecision winz, GLprecision Pc[3])
{
    const GLint viewport[4] = {view.v.l,view.v.b,view.v.w,view.v.h};
    const pangolin::OpenGlMatrix proj = cam_state->GetProjectionMatrix();
    glUnProject(winx, winy, winz, Identity4d, proj.m, viewport, &Pc[0], &Pc[1], &Pc[2]);
}