utils.cpp File Reference

#include "scenegraph/utils.hpp"
#include "scenegraph/node.hpp"
#include "scenegraph/camera.hpp"
#include "scenegraph/freeview.hpp"
#include "platform/vbuffer.hpp"
#include "platform/lowlevel.hpp"
#include <cmath>

Include dependency graph for utils.cpp:

Go to the source code of this file.

Namespaces
namespace	gsgl
namespace	gsgl::scenegraph
namespace	gsgl::scenegraph::utils
Functions
gsgl::real_t	dot_in_eye_space (node *frame, const math::vector &pos=math::vector::ZERO)
void	draw_billboard (node *frame, const math::vector &pos, const gsgl::real_t radius)
	Draws a billboard at the specified point in the specified frame.
gsgl::real_t	greatest_extent (const node *n)
bool	is_on_screen (node *frame, const gsgl::real_t field_of_view, const gsgl::real_t aspect_ratio, const math::vector &pos=math::vector::ZERO, const gsgl::real_t radius=0)
gsgl::real_t	pixel_size (const gsgl::real_t distance, const gsgl::real_t radius, const gsgl::real_t field_of_view, const int pixels_in_field_of_view)
vector	pos_in_eye_space (node *frame, const math::vector &pos=math::vector::ZERO)
vector	pos_in_screen_space (const gsgl::math::vector &point, const int viewport[4], const gsgl::math::transform &modelview_projection)
void	save_screen_info (int viewport[4], gsgl::math::transform &modelview_projection)
	Save projection information for later doing calculations in screen space.