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add dummy global illum

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This commit is contained in:
Shuo Feng 2024-03-20 01:07:39 -04:00
parent bb70580274
commit 5cf306cbbe
Signed by: sfeng
GPG key ID: 1E83AE6CD1C037B1
4 changed files with 84 additions and 22 deletions
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8
src/Light.cc
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@ -20,6 +20,8 @@ Vector3f Light::is() const { return is_; }
bool Light::isUse() const { return use; }
Vector3f PointLight::getCenter() const { return center; }
Vector3f PointLight::illumination(const HitRecord &hit,
const vector<Geometry *> &geometries) const {
Vector3f shadingPoint = hit.point();
@ -46,6 +48,10 @@ Vector3f PointLight::illumination(const HitRecord &hit,
return specular_ + ambient_ + diffuse_;
}
Vector3f AreaLight::getCenter() const {
return p1 + (p4 - p1) / 2 + (p2 - p1) / 2;
}
Vector3f AreaLight::illumination(const HitRecord &hit,
const vector<Geometry *> &geometries) const {
Vector3f u = p4 - p1;
@ -54,7 +60,7 @@ Vector3f AreaLight::illumination(const HitRecord &hit,
Vector3f color = Vector3f::Zero();
if (useCenter) {
color += PointLight(*this, p1 + (u + v) / 2).illumination(hit, geometries);
color += PointLight(*this, getCenter()).illumination(hit, geometries);
} else {
for (int y = 0; y < gridSize; ++y)
for (int x = 0; x < gridSize; ++x) {