milner
09d072a658
Sphere and plane records, camera ray generation from field of view and aspect ratio, and the nearest-hit search across the scene.
68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
#ifndef RT_SCENE_H
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#define RT_SCENE_H
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#include "rt.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct {
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vec3 origin, dir;
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} ray;
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typedef enum { MAT_LAMBERT = 0, MAT_METAL = 1, MAT_LIGHT = 2 } mat_kind;
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typedef struct {
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mat_kind kind;
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vec3 albedo;
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double fuzz;
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} material;
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typedef struct {
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vec3 center;
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double radius;
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material mat;
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} sphere;
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typedef struct {
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const sphere *spheres;
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int count;
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vec3 background;
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} scene;
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typedef struct {
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vec3 origin, lower_left, horizontal, vertical;
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} camera;
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typedef struct {
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double t;
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vec3 point, normal;
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material mat;
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int front;
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} hit;
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camera camera_make(vec3 look_from, vec3 look_at, vec3 up, double fov_deg, double aspect);
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ray camera_ray(const camera *c, double u, double v);
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int scene_hit(const scene *s, ray r, double tmin, double tmax, hit *out);
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vec3 ray_colour(const scene *s, ray r, int depth, rng *rng_state);
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typedef struct {
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const scene *sc;
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const camera *cam;
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unsigned char *rgb;
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int width, height, samples, max_depth;
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int row_next;
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int threads;
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} render_job;
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/* Returns the number of worker threads actually used. */
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int render_run(render_job *job);
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#ifdef __cplusplus
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}
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#endif
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#endif
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