Permit zero-temporary-value buffer binding

When using custom 3D renderers, p5 can support much larger models, but this particular bit of code showed up as a hotspot: I was passing in a Float32 already, and it was getting cloned.

Without this change, my particular workload runs at 7-12 fps. With it 45-50fps.

In principle p5 can make use of this itself, though having webGL ready representations as the source of truth is a much larger change - but even so, taking steps in that direction seems broadly useful.

Author: rbtcollins

src/webgl/p5.RendererGL.js

@@ -1337,7 +1337,12 @@ p5.RendererGL.prototype._bindBuffer = function(
   if (!target) target = this.GL.ARRAY_BUFFER;
   this.GL.bindBuffer(target, buffer);
   if (values !== undefined) {
-    const data = new (type || Float32Array)(values);
+    let data;
+    if (ArrayBuffer.isView(values) ) {
+      data = values;
+    } else {
+      data = new (type || Float32Array)(values);
+    }
     this.GL.bufferData(target, data, usage || this.GL.STATIC_DRAW);
   }
 };