From 2a3263780858dde2b035e4f59867aab11254633b Mon Sep 17 00:00:00 2001
From: Tim Deubler <tim.deubler@here.com>
Date: Wed, 23 Oct 2024 12:14:33 +0200
Subject: [PATCH] improved GeometryBuffer index handling

Signed-off-by: Tim Deubler <tim.deubler@here.com>
---
 .../displays/webgl/buffer/GeometryBuffer.ts   | 36 ++++++++-----------
 1 file changed, 14 insertions(+), 22 deletions(-)

diff --git a/packages/display/src/displays/webgl/buffer/GeometryBuffer.ts b/packages/display/src/displays/webgl/buffer/GeometryBuffer.ts
index 509cb1b1d..cdae7736a 100644
--- a/packages/display/src/displays/webgl/buffer/GeometryBuffer.ts
+++ b/packages/display/src/displays/webgl/buffer/GeometryBuffer.ts
@@ -213,31 +213,23 @@ class GeometryBuffer {
     }
 
     private createIndex(index: number[] | Uint16Array | Uint32Array, i32?: boolean): IndexGrp {
+        const data = Array.isArray(index) ?
+            i32 ? new Uint32Array(index) : new Uint16Array(index)
+            : index;
+        // let i = index.length;
+        // while (i--) {
+        //     if (index[i] > 0xffff) {
+        //         i32 = true;
+        //         break;
+        //     }
+        // }
         return {
-            index: i32 ? {
-                data: isTypedArray(index) ? (<Uint32Array>index) : new Uint32Array(index),
-                type: GL_UNSIGNED_INT,
-                length: index.length
-            } : {
-                data: isTypedArray(index) ? (<Uint16Array>index) : new Uint16Array(index),
-                type: GL_UNSIGNED_SHORT,
-                length: index.length
+            index: {
+                type: data.constructor == Uint32Array ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT,
+                length: index.length,
+                data
             }
         };
-
-
-        // return {
-        //     index: i32 ? {
-        //         data: new Uint32Array(3),
-        //         // data: isTypedArray(index) ? (<Uint16Array | Uint32Array>index) : new Uint32Array(index),
-        //         type: GL_UNSIGNED_INT,
-        //         length: index.length
-        //     } : {
-        //         data: isTypedArray(index) ? index : new Uint16Array(index),
-        //         type: GL_UNSIGNED_SHORT,
-        //         length: index.length
-        //     }
-        // };
     }
 
     private createArrays(arrays: ArrayData) {