Transform.h

#pragma once
 
#include "Engine/Operator/Attribute.h"
#include "Engine/Types.h"
 
namespace enzo {
class Transform {
  public:
    Transform(ga::Attribute &attribute, ga::Offset offset) {
        // Compute 4x4 transform matrix from attributes
 
        // Use vector attribute as the position in the matrix
        if (attribute.getType() == ga::AttrType::vectorT) {
            mat_ = bt::Matrix4::Identity();
            mat_.col(3).head<3>() = attribute.getVector3(offset);
 
            // Use matrix types directly
        } else if (attribute.getType() == ga::AttrType::matrixT) {
            mat_ = attribute.getMatrix4(offset);
 
            // Fallback to identity
        } else {
            mat_ = bt::Matrix4::Identity();
        }
    }
 
    const bt::Matrix4 &getMatrix() const { return mat_; }
 
  private:
    bt::Matrix4 mat_;
};
} // namespace enzo