From 5dcf778b31d2b85cc448406291624ed606beebb6 Mon Sep 17 00:00:00 2001
From: Syoyo Fujita <syoyo@lighttransport.com>
Date: Thu, 12 Mar 2020 22:08:32 +0900
Subject: [PATCH] Add feature to repace mesh.primitive.indices accessor.

---
 examples/mesh-conv/sandbox/replace_attrib.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/examples/mesh-conv/sandbox/replace_attrib.py b/examples/mesh-conv/sandbox/replace_attrib.py
index 3318f6d..c3afc6e 100644
--- a/examples/mesh-conv/sandbox/replace_attrib.py
+++ b/examples/mesh-conv/sandbox/replace_attrib.py
@@ -5,6 +5,7 @@
 import json
 import sys, os
 
+replace_indices = False
 attrib_names = ["TEXCOORD_0"]
 
 def check_accessor(src, target):
@@ -70,9 +71,18 @@ def main():
     source_mesh = gltf["meshes"][source_mesh_id]
     target_mesh = gltf["meshes"][target_mesh_id]
 
+
     source_prim = source_mesh["primitives"][source_primid]
     target_prim = target_mesh["primitives"][target_primid]
 
+    if replace_indices:
+        target_indices_id = target_prim["indices"]
+        src_indices_id = source_prim["indices"]
+
+        print("Replace vertex indices from {} to {}".format(target_indices_id, src_indices_id))
+        gltf["meshes"][target_mesh_id]["primitives"][target_primid]["indices"] = gltf["meshes"][source_mesh_id]["primitives"][source_primid]["indices"]
+
+
     for attrib in target_prim["attributes"]:
         print("attrib ", attrib)
         if attrib in attrib_names: