OpenGL Support. More...

#include <SDL_opengl.h>

Functions
AA_API void	aa_rx_sg_gl_init (struct aa_rx_sg *sg)
	Initialize OpenGL objects in scene graph. More...

AA_API void	aa_rx_sg_render (const struct aa_rx_sg scenegraph, const struct aa_gl_globals globals, size_t n_TF, const double *TF_abs, size_t ld_TF)
	Render the scene graph to the current GL context. More...

AA_API void	aa_gl_qutr2glmat (const double E[AA_RESTRICT 7], GLfloat M[AA_RESTRICT 16])
	Convert a quaternion-translation to an OpenGL matrix.

AA_API void	aa_gl_tfmat2glmat (const double T[AA_RESTRICT 12], GLfloat M[AA_RESTRICT 16])
	Convert a condensed transformation matrix to an OpenGL matrix.

AA_API void	aa_gl_mat_perspective (double fovy, double aspect, double znear, double zfar, GLfloat M[16])
	Create a OpenGL matrix for a perspective transform.

AA_API GLuint	aa_gl_create_shader (GLenum shader_type, const char *source)
	Compile a shader from a text string.

AA_API GLuint	aa_gl_create_program (GLuint vert_shader, GLuint frag_shader)
	Create a GLSL program and attach shaders.

AA_API void	aa_gl_init ()
	Initialize GL engine.

AA_API struct aa_gl_globals *	aa_gl_globals_create ()
	Container for globals rendering info (Forward declaration)

AA_API void	aa_gl_globals_destroy (struct aa_gl_globals *globals)
	Destroy a aa_gl_globals struct.

AA_API void	aa_gl_globals_set_camera (struct aa_gl_globals *globals, const double world_E_camera[7])
	Set the camera transform.

AA_API void	aa_gl_globals_set_camera_home (struct aa_gl_globals *globals, const double world_E_camera_home[7])
	Set the camera "home" transform.

AA_API void	aa_gl_globals_home_camera (struct aa_gl_globals *globals)
	Set the camera transform to its "home" value.

AA_API void	aa_gl_globals_set_light_position (struct aa_gl_globals *globals, const double world_v_light[3])
	Set the position of the light.

AA_API void	aa_gl_globals_set_aspect (struct aa_gl_globals *globals, double aspect)
	Set the camera aspect ratio.

AA_API void	aa_gl_globals_set_perspective (struct aa_gl_globals *globals, double fovy, double aspect, double znear, double zfar)
	Set the camera perspective matrix.

AA_API void	aa_gl_globals_set_light_color (struct aa_gl_globals *globals, const double color[3])
	Set the color of the light.

AA_API void	aa_gl_globals_set_light_power (struct aa_gl_globals *globals, double power)
	Set the power (intensity) of the light.

AA_API void	aa_gl_globals_set_ambient (struct aa_gl_globals *globals, const double ambient[3])
	Set the light ambient color.

AA_API void	aa_gl_globals_set_show_visual (struct aa_gl_globals *globals, int show_visual)
	Set flag to enable render of visual geometry.

AA_API void	aa_gl_globals_set_show_collision (struct aa_gl_globals *globals, int show_collision)
	Set flag to enable render of collision geometry.

AA_API void	aa_gl_globals_unmask_all (struct aa_gl_globals *globals)
	Set the display mask value of all frames to false.

AA_API int	aa_gl_globals_is_masked (const struct aa_gl_globals *globals, size_t i)
	Return the display mask value of the i'th frame.

AA_API void	aa_gl_globals_mask (struct aa_gl_globals *globals, size_t i, int value)
	Set the display mask value of the i'th frame to ‘value’. More...

AA_API void	aa_geom_gl_buffers_init (struct aa_rx_geom *geom)
	Initialize OpenGL buffers for geometry object.

AA_API void	aa_gl_buffers_destroy (struct aa_gl_buffers *buffers)
	Destroy OpenGL buffers. More...

AA_API void	aa_gl_buffers_schedule_destroy (struct aa_gl_buffers *buffers)
	Schedule destruction of OpenGL buffers. More...

AA_API void	aa_gl_buffers_cleanup (void)
	Destroy previously schedule OpenGL buffers. More...

AA_API const char *	aa_gl_error_string (GLenum error)
	Return a string describing the error.

Detailed Description

OpenGL Support.

Definition in file scene_gl.h.

Function Documentation

◆ aa_gl_buffers_cleanup()

AA_API void aa_gl_buffers_cleanup ( void )

Destroy previously schedule OpenGL buffers.

This function should only be called from the thread that owns the GL context for buffers, i.e., the rendering thread..

◆ aa_gl_buffers_destroy()

AA_API void aa_gl_buffers_destroy ( struct aa_gl_buffers * buffers )

Destroy OpenGL buffers.

This function should only be called from the thread that owns the GL context for buffers.

◆ aa_gl_buffers_schedule_destroy()

AA_API void aa_gl_buffers_schedule_destroy ( struct aa_gl_buffers * buffers )

Schedule destruction of OpenGL buffers.

This function can be called from any thread.

◆ aa_gl_globals_mask()

AA_API void aa_gl_globals_mask	(	struct aa_gl_globals *	globals,
		size_t	i,
		int	value
	)

Set the display mask value of the i'th frame to ‘value’.

Frames with a true display mask are hidden.

◆ aa_rx_sg_gl_init()

AA_API void aa_rx_sg_gl_init ( struct aa_rx_sg * sg )

Initialize OpenGL objects in scene graph.

This function is not threadsafe. Do not attempt to access the same GL context from multiple threads.

See also: aa_rx_win_sg_gl_init()

◆ aa_rx_sg_render()

AA_API void aa_rx_sg_render	(	const struct aa_rx_sg *	scenegraph,
		const struct aa_gl_globals *	globals,
		size_t	n_TF,
		const double *	TF_abs,
		size_t	ld_TF
	)

Render the scene graph to the current GL context.