Preserving BakedModel and switching to ItemRenderer.render instead of ItemRenderer.renderStatic #6674
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The current implementation of renderItems calls get the BakedModel to check for isGui3d() then call renderStatic multiple times for the stack. ItemRenderer.renderStatic fetch the BakedModel and call ItemRenderer.render. Saving the BakedModel when used, allows us to call ItemRenderer.render() directly without fetching the baked model up to 4 times and saves CPU usage.
On a big factory with a lot of items, this allowed me to go from ~25fps to ~35fps