26 lines
622 B
C++
26 lines
622 B
C++
#ifndef COLOR_H
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#define COLOR_H
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#include <iostream>
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#include <cmath>
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#include "vec3.h"
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#include "util.h"
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void write_color(std::ostream &out, Color pixel_color, int sample_per_pixel) {
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auto r = pixel_color.x();
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auto g = pixel_color.y();
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auto b = pixel_color.z();
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auto scale = 1.0 / sample_per_pixel;
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r = std::sqrt(scale * r);
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g = std::sqrt(scale * g);
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b = std::sqrt(scale * b);
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out << static_cast<int>(256 * clamp(r, 0.0, 0.999)) << " "
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<< static_cast<int>(256 * clamp(g, 0.0, 0.999)) << " "
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<< static_cast<int>(256 * clamp(b, 0.0, 0.999)) << "\n";
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}
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#endif // COLOR_H
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