cloudy-raytracer/shader/lambertshader.cpp
2022-11-28 19:15:34 +01:00

17 lines
557 B
C++

#include "light/light.h"
#include "scene/scene.h"
#include "shader/lambertshader.h"
LambertShader::LambertShader(Color const &diffuseColor) : diffuseColor(diffuseColor) {}
Color LambertShader::shade(Scene const &scene, Ray const &ray) const {
Color fragmentColor;
// IMPLEMENT ME
for (auto& light : scene.lights()) {
auto illum = light->illuminate(scene, ray);
auto lightAngle = dotProduct(ray.normal, normalized(illum.direction));
fragmentColor += illum.color * std::abs(lightAngle);
}
return fragmentColor * diffuseColor;
}