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Add shadows

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Abdelrahman Said 2024-02-04 00:19:11 +00:00
parent 1f5568b63e
commit 56959990e4
1 changed files with 10 additions and 0 deletions
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10
src/raytracer/main.c
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@ -2,6 +2,7 @@
#include "vector/vec.h"
#include "window/window.h"
#include <SDL2/SDL_events.h>
#include <float.h>
#include <math.h>
#include <stdbool.h>
#include <stdint.h>
@ -282,18 +283,27 @@ f32 compute_lighting(vec3f_t position, vec3f_t surface_normal,
I += light.intensity;
} else {
vec3f_t light_direction = {0};
f32 t_max = FLT_EPSILON;
switch (light.type) {
case LIGHT_TYPE_POINT:
light_direction = vec_sub(vec3f_t, light.position, position);
t_max = 1;
break;
case LIGHT_TYPE_DIRECTIONAL:
light_direction = light.direction;
t_max = INFINITY;
break;
default:
break;
}
intersection_t shadow = find_closest_intersection(
position, light_direction, 0.001f, t_max, scene);
if (shadow.closest_sphere != NULL) {
continue;
}
I += light_diffuse(light.intensity, light_direction, surface_normal);
if (specular_exponent != -1.0f) {