diff --git a/.gitignore b/.gitignore
index 7a395d7..c5fd541 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 .venv/
 __pycache__/
 *.py[cod]
+*.egg-info/
 
 .idea/
 .claude/
diff --git a/data/real/3d/.gitkeep b/data/real/3d/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/data/real/3d_rotate/.gitkeep b/data/real/3d_rotate/.gitkeep
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/data/real/3d_rotate/.gitkeep
@@ -0,0 +1 @@
+
diff --git a/data/real/3d_slider/.gitkeep b/data/real/3d_slider/.gitkeep
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/data/real/3d_slider/.gitkeep
@@ -0,0 +1 @@
+
diff --git a/data/real/3d_text/.gitkeep b/data/real/3d_text/.gitkeep
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/data/real/3d_text/.gitkeep
@@ -0,0 +1 @@
+
diff --git a/data/solver/rotate/real/.gitkeep b/data/solver/rotate/real/.gitkeep
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/data/solver/rotate/real/.gitkeep
@@ -0,0 +1 @@
+
diff --git a/data/solver/slide/real/.gitkeep b/data/solver/slide/real/.gitkeep
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/data/solver/slide/real/.gitkeep
@@ -0,0 +1 @@
+