raytrace.cpp File Reference

#include <Magick++.h>
#include <cstdlib>
#include <ctime>
#include <dlfcn.h>
#include <getopt.h>
#include <glob.h>
#include <iostream>
#include <ncurses.h>
#include <unistd.h>
#include <signal.h>
#include <string>
#include "raytrace_defs.h"
#include "renderable.h"
#include "ray.h"
#include "scene.h"
#include "color.h"

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Functions
void	load_plugins ()
	Load plugins.
int	main (int argc, char **argv)
void	print_stats (string fname, int elapsed, long primary_rays, long traced_rays)
	Print statistics about the render.
void	register_signal_handlers ()
void	trace_ray (ColorRGB &pixel, const Ray &ray, int depth)
unsigned long	trace_rays (Image &img, Point3D eye)
Variables
raytrace_info	rt_info

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Detailed Description

Author:

Michael Brailsford <brailsmt@yahoo.com>

Brandon Inman <brinman2002@yahoo.com>

Date:

Fri Mar 23 00:10:18 -0500 2007 © 2007 Michael Brailsford

Definition in file raytrace.cpp.

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Function Documentation

void load_plugins

(

)

Load plugins.

Definition at line 256 of file raytrace.cpp.

References exit_mbrt(), log_crit, and log_info.

Referenced by main().

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int main	(	int	argc,
		char **	argv
	)

Definition at line 292 of file raytrace.cpp.

References Scene::get_camera(), Scene::get_geometry(), Scene::get_instance(), Scene::get_output_filename(), Scene::get_viewport_pixel_height(), Scene::get_viewport_pixel_width(), load_plugins(), log_info, print_stats(), register_signal_handlers(), and trace_rays().

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void print_stats	(	string	fname,
		int	elapsed,
		long	primary_rays,
		long	traced_rays
	)

Print statistics about the render.

Definition at line 231 of file raytrace.cpp.

References REPORT_FACTOR, rt_info, and raytrace_info::traced_rays.

Referenced by main().

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void register_signal_handlers

(

)

Register signal handlers to ensure ncurses is shut down properly when the process is terminated or crashes.

Definition at line 283 of file raytrace.cpp.

References exit_mbrt().

Referenced by main().

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void trace_ray	(	ColorRGB &	pixel,
		const Ray &	ray,
		int	depth
	)

Trace a ray from the coordinate of the eye, through every pixel in the image.

Parameters:

	pixel	The pixel in the image which will be calculated by tracing the ray.
	ray	The ray to be traced.
	depth	The current depth in the recursion of rays traced.

Definition at line 173 of file raytrace.cpp.

References Ray::direction(), Scene::find_collision(), Renderable::get_color_contribution(), Scene::get_instance(), Scene::get_max_recurse_depth(), Renderable::get_opacity(), Renderable::get_reflection(), Scene::get_viewport_pixel_height(), Scene::get_viewport_pixel_width(), INF, OPAQUE, Ray::origin(), raytrace_info::primary_rays, raytrace_info::rendered_pixels, REPORT_FACTOR, rt_info, raytrace_info::start_time, and raytrace_info::traced_rays.

Referenced by trace_rays().

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unsigned long trace_rays	(	Image &	img,
		Point3D	eye
	)

Trace a ray for each pixel in image.

Parameters:

	data	Image imformation that will be populated by tracing the rays.
	eye	The origin of all rays shot into the scene.

Todo:

Extract the algorithm part of this function. Then change the algorithm used based on user input/configuration. This will allow us to compare algorithms and provide choice for users and flexibility for future algorithms.

Definition at line 42 of file raytrace.cpp.

References Scene::get_instance(), Scene::get_subpixel_sqrt(), Scene::get_viewport_pixel_height(), Scene::get_viewport_pixel_width(), jitter(), raytrace_info::rendered_pixels, rt_info, trace_ray(), raytrace_info::traced_rays, Point3D::x, Point3D::y, and Point3D::z.

Referenced by main().

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Variable Documentation

struct raytrace_info rt_info

Definition at line 33 of file raytrace.cpp.

Referenced by print_stats(), trace_ray(), and trace_rays().

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