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Adding normals

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This commit is contained in:
IlyaShurupov 2023-10-17 20:51:25 +03:00
parent cfb4c0cfcc
commit 97f79a6483
6 changed files with 882 additions and 878 deletions
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124
Math/private/Topology.cpp
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@ -12,89 +12,89 @@ TrigCache::TrigCache() : mP1(0), mP2(0), mP3(0) {}
TrigCache::TrigCache(ualni v1, ualni v2, ualni v3) : mP1(v1), mP2(v2), mP3(v3) {}
TrigCache::TrigCache(const TrigCache& in) {
mP1 = in.mP1;
mP2 = in.mP2;
mP3 = in.mP3;
mP1 = in.mP1;
mP2 = in.mP2;
mP3 = in.mP3;
mEdgeP1P2 = in.mEdgeP1P2;
mEdgeP1P3 = in.mEdgeP1P3;
mEdgeP1P2 = in.mEdgeP1P2;
mEdgeP1P3 = in.mEdgeP1P3;
mOrigin = in.mOrigin;
mNormal = in.mNormal;
mOrigin = in.mOrigin;
mNormal = in.mNormal;
}
void TrigCache::updateCache(const Buffer<Vec3F>& points) {
mOrigin = points[mP1];
mEdgeP1P2 = points[mP2] - points[mP1];
mEdgeP1P3 = points[mP3] - points[mP1];
mNormal = (points[mP2] - points[mP1]).cross(points[mP3] - points[mP1]).unitV();
mOrigin = points[mP1];
mEdgeP1P2 = points[mP2] - points[mP1];
mEdgeP1P3 = points[mP3] - points[mP1];
mNormal = (points[mP2] - points[mP1]).cross(points[mP3] - points[mP1]).unitV();
}
bool TrigCache::castRay(const Ray& ray) const {
static Vec3F h, s, q;
static halnf a, f, u, v;
static halnf t;
static Vec3F h, s, q;
static halnf a, f, u, v;
static halnf t;
h = ray.dir.cross(mEdgeP1P3);
a = mEdgeP1P2.dot(h);
h = ray.dir.cross(mEdgeP1P3);
a = mEdgeP1P2.dot(h);
if (a > -EPSILON && a < EPSILON) {
return false;
}
if (a > -EPSILON && a < EPSILON) {
return false;
}
f = 1.f / a;
s = ray.pos - mOrigin;
u = f * s.dot(h);
f = 1.f / a;
s = ray.pos - mOrigin;
u = f * s.dot(h);
if (u < 0.0 || u > 1.0) {
return false;
}
if (u < 0.0 || u > 1.0) {
return false;
}
q = s.cross(mEdgeP1P2);
v = f * ray.dir.dot(q);
q = s.cross(mEdgeP1P2);
v = f * ray.dir.dot(q);
if (v < 0.f || u + v > 1.f) {
return false;
}
if (v < 0.f || u + v > 1.f) {
return false;
}
t = f * mEdgeP1P3.dot(q);
if (t > EPSILON) {
gHitPos = ray.pos + ray.dir * t;
return true;
} else {
return false;
}
t = f * mEdgeP1P3.dot(q);
if (t > EPSILON) {
gHitPos = ray.pos + ray.dir * t;
return true;
} else {
return false;
}
}
const Vec3F& TrigCache::getHitPos() { return gHitPos; }
const Vec3F& TrigCache::getNormal() const { return mNormal; }
void Topology::addTrig(const Vec3F& v1, const Vec3F& v2, const Vec3F& v3) {
auto trigIdx = mPoints.size();
void TopologyCache::updateCache() {
TransformedNormals.clear();
TransformedPoints.clear();
TrigCaches.clear();
mPoints.append(v1);
mPoints.append(v2);
mPoints.append(v3);
if (!Source) {
return;
}
TrigCache newTrig(trigIdx, trigIdx + 1, trigIdx + 2);
mTrigCaches.append(newTrig);
TransformedPoints.reserve(Source->Points.size());
for (auto idx : Range(TransformedPoints.size())) {
TransformedPoints[idx] = Source->Basis.transform(Source->Points[idx]);
TransformedPoints[idx] += Source->Origin;
}
TransformedNormals.reserve(Source->Normals.size());
for (auto idx : Range(TransformedNormals.size())) {
TransformedNormals[idx] = Source->Basis.transform(Source->Normals[idx]);
}
TrigCaches.reserve(Source->Indexes.size());
for (auto idx : Range(TrigCaches.size())) {
TrigCaches[idx].mP1 = Source->Indexes[idx].x;
TrigCaches[idx].mP2 = Source->Indexes[idx].y;
TrigCaches[idx].mP3 = Source->Indexes[idx].z;
TrigCaches[idx].updateCache(TransformedPoints);
}
}
void Topology::transformPoint(Vec3F& vert) {
mBasis.transform(vert);
vert += mOrigin;
}
void Topology::updateTransformed() {
mPointsTransformed = mPoints;
for (auto idx : Range(mPointsTransformed.size())) {
transformPoint(mPointsTransformed[idx]);
}
for (auto idx : Range(mTrigCaches.size())) {
mTrigCaches[idx].updateCache(mPointsTransformed);
}
}
const Buffer<TrigCache>& Topology::getTrigs() const { return mTrigCaches; }