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feat: add cgal and viewport smooth normals

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parker
2025-07-31 18:19:14 +01:00
parent afd3559a4d
commit 2bdada366b
5 changed files with 112 additions and 9 deletions
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54
src/Engine/Operator/Geometry.cpp
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@@ -3,7 +3,9 @@
#include "Engine/Operator/AttributeHandle.h"
#include "Engine/Types.h"
#include <memory>
#include <oneapi/tbb/task_group.h>
#include <stdexcept>
#include "icecream.hpp"
using namespace enzo;
geo::Geometry::Geometry()
@@ -13,6 +15,58 @@ geo::Geometry::Geometry()
addIntAttribute(ga::AttrOwner::PRIMITIVE, "vertexCount");
}
enzo::geo::HeMesh geo::Geometry::computeHalfEdgeMesh()
{
HeMesh heMesh;
std::shared_ptr<enzo::ga::Attribute> PAttr = getAttribByName(enzo::ga::AttrOwner::POINT, "P");
enzo::ga::AttributeHandleVector3 PAttrHandle = enzo::ga::AttributeHandleVector3(PAttr);
auto pointPositions = PAttrHandle.getAllValues();
std::shared_ptr<enzo::ga::Attribute> pointAttr = getAttribByName(enzo::ga::AttrOwner::VERTEX, "point");
enzo::ga::AttributeHandleInt pointAttrHandle = enzo::ga::AttributeHandleInt(pointAttr);
auto vertexPointIndices = pointAttrHandle.getAllValues();
std::shared_ptr<enzo::ga::Attribute> vertexCountAttr = getAttribByName(enzo::ga::AttrOwner::PRIMITIVE, "vertexCount");
enzo::ga::AttributeHandleInt vertexCountHandle = enzo::ga::AttributeHandleInt(vertexCountAttr);
auto vertexCounts = vertexCountHandle.getAllValues();
int vertexIndex = 0;
std::vector<geo::vertexDescriptor> createdPoints;
createdPoints.reserve(pointPositions.size());
std::vector<geo::vertexDescriptor> facePoints;
facePoints.reserve(16);
for(auto pointPos : pointPositions)
{
enzo::geo::vertexDescriptor point = heMesh.add_vertex(geo::Point(pointPos.x(), pointPos.y(), pointPos.z()));
createdPoints.push_back(point);
}
// iterate through each prim
for(int primIndx=0; primIndx<vertexCounts.size(); ++primIndx)
{
facePoints.clear();
// represents how many vertices are in a primitive
auto vertexCount = vertexCounts[primIndx];
// create primtive vertices
for(int i=0; i<vertexCount; ++i)
{
auto pointIndex = vertexPointIndices.at(vertexIndex);
facePoints.push_back(createdPoints[pointIndex]);
++vertexIndex;
}
heMesh.add_face(facePoints);
}
return heMesh;
}
ga::AttributeHandle<int> geo::Geometry::addIntAttribute(ga::AttributeOwner owner, std::string name)
{
auto newAttribute = std::make_shared<ga::Attribute>(name, ga::AttrType::intT);