Issue 7153 - 3DGS IO

cpp/open3d/t/geometry/PointCloud.h

@@ -214,6 +214,41 @@ class PointCloud : public Geometry, public DrawableGeometry {
     /// This is a convenience function.
     bool HasPointNormals() const { return HasPointAttr("normals"); }
 
+    /// Returns true if all of the following are true:
+    /// 1) attribute "scale" exist
+    /// 2) attribute "scale"'s length as points' length
+    /// 3) attribute "scale"'s length > 0
+    /// This is a convenience function.
+    bool HasPointScales() const { return HasPointAttr("scale"); }
+
+    /// Returns true if all of the following are true:
+    /// 1) attribute "opacity" exist
+    /// 2) attribute "opacity"'s length as points' length
+    /// 3) attribute "opacity"'s length > 0
+    /// This is a convenience function.
+    bool HasPointOpacities() const { return HasPointAttr("opacity"); }
+
+    /// Returns true if all of the following are true:
+    /// 1) attribute "rot" exist
+    /// 2) attribute "rot"'s length as points' length
+    /// 3) attribute "rot"'s length > 0
+    /// This is a convenience function.
+    bool HasPointRots() const { return HasPointAttr("rot"); }
+
+    /// Returns true if all of the following are true:
+    /// 1) attribute "f_dc" exist
+    /// 2) attribute "f_dc"'s length as points' length
+    /// 3) attribute "f_dc"'s length > 0
+    /// This is a convenience function.
+    bool HasPointFDCs() const { return HasPointAttr("f_dc"); }
+
+    /// Returns true if all of the following are true:
+    /// 1) attribute "f_rest" exist
+    /// 2) attribute "f_rest"'s length as points' length
+    /// 3) attribute "f_rest"'s length > 0
+    /// This is a convenience function.
+    bool HasPointFRests() const { return HasPointAttr("f_rest"); }
+
 public:
     /// Transfer the point cloud to a specified device.
     /// \param device The targeted device to convert to.

cpp/open3d/t/io/CMakeLists.txt

@@ -13,6 +13,7 @@ target_sources(tio PRIVATE
     file_format/FileJPG.cpp
     file_format/FilePCD.cpp
     file_format/FilePLY.cpp
+    file_format/FileSPLAT.cpp
     file_format/FilePNG.cpp
     file_format/FilePTS.cpp
     file_format/FileTXT.cpp

cpp/open3d/t/io/PointCloudIO.cpp

@@ -52,6 +52,7 @@ static const std::unordered_map<
                 {"xyzrgb", WritePointCloudToTXT},
                 {"pcd", WritePointCloudToPCD},
                 {"ply", WritePointCloudToPLY},
+                {"splat", WritePointCloudToSPLAT},
                 {"pts", WritePointCloudToPTS},
         };
 

cpp/open3d/t/io/PointCloudIO.h

@@ -74,6 +74,14 @@ bool WritePointCloudToPLY(const std::string &filename,
                           const geometry::PointCloud &pointcloud,
                           const WritePointCloudOption &params);
 
+bool ReadPointCloudFromSPLAT(const std::string &filename,
+                             geometry::PointCloud &pointcloud,
+                             const ReadPointCloudOption &params);
+
+bool WritePointCloudToSPLAT(const std::string &filename,
+                            const geometry::PointCloud &pointcloud,
+                            const WritePointCloudOption &params);
+
 bool ReadPointCloudFromPTS(const std::string &filename,
                            geometry::PointCloud &pointcloud,
                            const ReadPointCloudOption &params);