shade.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "tachyon.h"
#include "macros.h"
#include "threads.h"
#include "light.h"
#include "intersect.h"
#include "vector.h"
#include "trace.h"
#include "shade.h"

Go to the source code of this file.

Macros
#define	TACHYON_INTERNAL   1

Functions
color	lowest_shader (ray *incident)
color	low_shader (ray *incident)
color	medium_shader (ray *incident)
color	full_shader (ray *incident)
color	shade_ambient_occlusion (ray *incident, const shadedata *shadevars)
color	shade_reflection (ray *incident, const shadedata *shadevars, flt specular)
color	shade_transmission (ray *incident, const shadedata *shadevars, flt trans)
flt	shade_nullphong (const ray *incident, const shadedata *shadevars, flt specpower)
flt	shade_blinn (const ray *incident, const shadedata *shadevars, flt specpower)
flt	shade_blinn_fast (const ray *incident, const shadedata *shadevars, flt specpower)
flt	shade_phong (const ray *incident, const shadedata *shadevars, flt specpower)
color	fog_color (const ray *incident, color col, flt t)
	Compute the fog color, given the active fogging function and fog parameters. More...
color	fog_color_linear (struct fogdata_t *fog, color col, flt r)
	OpenGL-like linear fog. More...
color	fog_color_exp (struct fogdata_t *fog, color col, flt r)
	OpenGL-like exponential fog. More...
color	fog_color_exp2 (struct fogdata_t *fog, color col, flt r)
	OpenGL-like exponential-squared fog. More...

Macro Definition Documentation

TACHYON_INTERNAL

#define TACHYON_INTERNAL   1

Definition at line 16 of file shade.c.

Function Documentation

fog_color()

color fog_color	(	const ray *	incident,
		color	col,
		flt	t
	)

Compute the fog color, given the active fogging function and fog parameters.

Definition at line 676 of file shade.c.

References RT_FOG_OPENGL, and VDot().

Referenced by full_shader(), and medium_shader().

fog_color_exp()

color fog_color_exp	(	struct fogdata_t *	fog,
		color	col,
		flt	r
	)

OpenGL-like exponential fog.

Definition at line 715 of file shade.c.

References EXP.

Referenced by rt_fog_mode().

fog_color_exp2()

color fog_color_exp2	(	struct fogdata_t *	fog,
		color	col,
		flt	r
	)

OpenGL-like exponential-squared fog.

Definition at line 735 of file shade.c.

References EXP.

Referenced by rt_fog_mode().

fog_color_linear()

color fog_color_linear	(	struct fogdata_t *	fog,
		color	col,
		flt	r
	)

OpenGL-like linear fog.

Definition at line 696 of file shade.c.

Referenced by rt_fog_mode().

full_shader()

color full_shader

(

ray *

incident

)

Definition at line 233 of file shade.c.

References add_clipped_shadow_intersection(), add_shadow_intersection(), closest_intersection(), ColorAccum(), ColorAddS(), ColorScale(), COS, fog_color(), intersect_objects(), POW, RAYPNT, RT_FOG_NORMAL, RT_PHONG_METAL, RT_TRANS_RASTER3D, RT_TRANS_VMD, shade_ambient_occlusion(), light_t::shade_diffuse, shade_reflection(), shade_transmission(), shadow_intersection(), and VDot().

Referenced by rt_autoshader(), and rt_shadermode().

low_shader()

color low_shader

(

ray *

incident

)

Definition at line 65 of file shade.c.

References closest_intersection(), and RAYPNT.

Referenced by rt_shadermode().

lowest_shader()

color lowest_shader

(

ray *

incident

)

Definition at line 32 of file shade.c.

References closest_intersection().

Referenced by rt_shadermode().

medium_shader()

color medium_shader

(

ray *

incident

)

Definition at line 93 of file shade.c.

References closest_intersection(), ColorAccum(), ColorAddS(), ColorScale(), COS, fog_color(), POW, RAYPNT, RT_FOG_NORMAL, RT_PHONG_METAL, RT_TRANS_RASTER3D, RT_TRANS_VMD, light_t::shade_diffuse, shade_reflection(), shade_transmission(), and VDot().

Referenced by rt_shadermode().

shade_ambient_occlusion()

color shade_ambient_occlusion	(	ray *	incident,
		const shadedata *	shadevars
	)

Definition at line 410 of file shade.c.

References add_clipped_shadow_intersection(), add_shadow_intersection(), intersect_objects(), jitter_sphere3f(), Raypnt(), shadow_intersection(), and VDot().

Referenced by full_shader().

shade_blinn()

flt shade_blinn	(	const ray *	incident,
		const shadedata *	shadevars,
		flt	specpower
	)

Definition at line 583 of file shade.c.

References POW, and SQRT.

Referenced by rt_phong_shader().

shade_blinn_fast()

flt shade_blinn_fast	(	const ray *	incident,
		const shadedata *	shadevars,
		flt	specpower
	)

Definition at line 616 of file shade.c.

References SQRT.

Referenced by rt_phong_shader().

shade_nullphong()

flt shade_nullphong	(	const ray *	incident,
		const shadedata *	shadevars,
		flt	specpower
	)

Definition at line 574 of file shade.c.

Referenced by rt_phong_shader().

shade_phong()

flt shade_phong	(	const ray *	incident,
		const shadedata *	shadevars,
		flt	specpower
	)

Definition at line 646 of file shade.c.

References POW, VAddS(), VDot(), VNorm(), and VScale().

Referenced by rt_phong_shader().

shade_reflection()

color shade_reflection	(	ray *	incident,
		const shadedata *	shadevars,
		flt	specular
	)

Definition at line 489 of file shade.c.

References ColorScale(), intersect_objects(), Raypnt(), and VAddS().

Referenced by full_shader(), and medium_shader().

shade_transmission()

color shade_transmission	(	ray *	incident,
		const shadedata *	shadevars,
		flt	trans
	)

Definition at line 533 of file shade.c.

References ColorScale(), intersect_objects(), and Raypnt().

Referenced by ext_volume_texture(), full_shader(), medium_shader(), par_volume_texture(), and scalar_volume_texture().