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Sample each pixel multiple times

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Camden Dixie O'Brien
2025-09-21 14:56:01 +01:00
parent 6215927179
commit 219415aee6
1 changed files with 10 additions and 2 deletions
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12
src/camera.c
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@@ -8,6 +8,7 @@
#define MAX_ITER 10 #define MAX_ITER 10
#define MIN_T 1e-6 #define MIN_T 1e-6
#define NSAMPLES 100
static const vec3_t lightblue = { 0.4, 0.6, 1.0 }; static const vec3_t lightblue = { 0.4, 0.6, 1.0 };
static const vec3_t white = { 1.0, 1.0, 1.0 }; static const vec3_t white = { 1.0, 1.0, 1.0 };
@@ -97,8 +98,15 @@ void camera_render(
.orig = camera->pos, .orig = camera->pos,
.dir = vec3_unit(pix), .dir = vec3_unit(pix),
}; };
const vec3_t col = trace(ray, scene, scene_count);
setpix(col, img_out->pix + (w * y + x)); vec3_t colour = black;
for (unsigned i = 0; i < NSAMPLES; ++i) {
const double weight = 1.0 / NSAMPLES;
const vec3_t sample = trace(ray, scene, scene_count);
colour = vec3_add(colour, vec3_scale(sample, weight));
}
setpix(colour, img_out->pix + (w * y + x));
} }
} }