Initial release

print_remesh.h

@@ -0,0 +1,41 @@
+#pragma once
+
+// Optional CGAL Alpha Wrap backend for turning TRELLIS' arbitrary triangle
+// soup into a closed solid.  The public wrapper stays dependency-free: builds
+// without CGAL compile the same API and report the feature as unavailable.
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace t2print {
+
+bool available();
+
+// alpha_ratio and offset_ratio are fractions of the input bounding-box
+// diagonal (for example 0.01 and 0.01/30).  Alpha controls the smallest holes
+// and cavities the wrap can enter; offset controls how tightly it encloses the
+// source.  Alpha Wrap creates an entirely new surface, so material transfer is
+// a separate closest-surface projection step (project_pbr below).
+bool alpha_wrap(const std::vector<float> & source_verts,
+                const std::vector<int32_t> & source_tris,
+                float alpha_ratio,
+                float offset_ratio,
+                std::vector<float> & out_verts,
+                std::vector<float> & out_normals,
+                std::vector<int32_t> & out_tris,
+                std::string & err);
+
+// Project query points onto the closest source triangles and barycentrically
+// interpolate their six-channel per-vertex PBR values.  This is the portable
+// CPU counterpart of upstream's cuBVH texture reprojection.  Query/output order
+// is preserved; query_points contains xyz triples and out_pbr receives six
+// floats per query.
+bool project_pbr(const std::vector<float> & source_verts,
+                 const std::vector<int32_t> & source_tris,
+                 const std::vector<float> & source_pbr,
+                 const std::vector<float> & query_points,
+                 std::vector<float> & out_pbr,
+                 std::string & err);
+
+} // namespace t2print