Exporter -> separate file, fix codegen, don't ignore .pn files

.gitattributes

@@ -1,3 +1,2 @@
 *.blend filter=lfs diff=lfs merge=lfs -text
-*.pn filter=lfs diff=lfs merge=lfs -text
 *.png filter=lfs diff=lfs merge=lfs -text

art/Exporter.py

@@ -0,0 +1,60 @@
+import bpy
+import bmesh
+import os
+import struct
+from mathutils import *; from math import *
+from bpy_extras.io_utils import (axis_conversion)
+
+C = bpy.context
+D = bpy.data
+
+EXPORT_DIRECTORY = "exported"
+
+if not os.path.exists(bpy.path.abspath(f"//{EXPORT_DIRECTORY}")):
+    os.makedirs(bpy.path.abspath(f"//{EXPORT_DIRECTORY}"))
+
+
+def write_f32(f, number: float):
+    f.write(bytes(struct.pack("f", number)))
+
+def write_u64(f, number: int):
+    f.write(bytes(struct.pack("Q", number)))
+
+for o in D.objects:
+    mapping = axis_conversion(
+        from_forward = "Y",
+        from_up = "Z",
+        to_forward = "-Z",
+        to_up = "Y",
+    )
+    mapping.resize_4x4()
+    print(mapping)
+    output_filepath = bpy.path.abspath(f"//{EXPORT_DIRECTORY}/{o.name}.bin")
+    print(f"\n\nExporting {output_filepath}")
+    with open(output_filepath, "wb") as f:
+        bm = bmesh.new()
+        mesh = o.to_mesh()
+        bm.from_mesh(mesh)
+        bmesh.ops.triangulate(bm, faces=bm.faces)
+        bm.transform(mapping)
+        bm.to_mesh(mesh)
+        
+        
+        vertices = []
+
+        for polygon in mesh.polygons:
+            if len(polygon.loop_indices) == 3:
+                for loopIndex in polygon.loop_indices:
+                    loop = mesh.loops[loopIndex]
+                    position = mesh.vertices[loop.vertex_index].undeformed_co
+                    uv = mesh.uv_layers.active.data[loop.index].uv
+                    normal = loop.normal
+                    
+                    vertices.append(position)
+        
+        write_u64(f, len(vertices))
+        for v in vertices:
+            write_f32(f, v.x)
+            write_f32(f, v.y)
+            write_f32(f, v.z)
+        print(f"Wrote {len(vertices)} vertices")

run_codegen.bat

@@ -29,7 +29,7 @@ copy "rpgpt_private_assets\knight_run_start.png" "assets\copyrighted\knight_run_
 
 rmdir /S /q "assets\exported_3d"
 mkdir "assets\exported_3d" || goto :error
-copy "rpgpt_private_assets\exported\*" "assets\exported_3d\" || goto :error
+copy "art\exported\*" "assets\exported_3d\" || goto :error
 @echo off
 
 rmdir /S /q gen