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add dummy global illum

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This commit is contained in:
Shuo Feng 2024-03-19 23:31:34 -04:00
parent c29cd77567
commit a62e5eadc5
Signed by: sfeng
GPG key ID: 1E83AE6CD1C037B1
1 changed files with 13 additions and 1 deletions
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14
src/RayTracer.cc
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@ -3,6 +3,7 @@
#include "Output.h"
#include "Parser.h"
#include "Progress.h"
#include "Random.h"
#include "Ray.h"
#include <Eigen/Core>
@ -150,11 +151,22 @@ void writeColor(int i, const Vector3f &color) {
Output::current->b(i, color.z());
}
Vector3f trace(Ray r, int bounce, float prob) {}
Vector3f trace(Ray r, int bounce, float prob) {
float dice = utils::Random::get();
if (bounce && (dice > prob)) {
return Vector3f(1, 0, 1).array() * trace(r, bounce - 1, prob).array();
}
return Vector3f(1, 1, 1);
}
utils::Optional<Vector3f> trace(Ray r) {
Vector3f color =
trace(r, Scene::current->maxBounce(), Scene::current->probTerminate());
if (color != Vector3f::Zero())
return utils::Optional<Vector3f>(color);
return utils::Optional<Vector3f>::nullopt;
}