Blender 5.3 Alpha Y-Up + OpenMoonRay Hydra Delegate (Windows x64)

Blender 5.3 Alpha Y-Up + OpenMoonRay Hydra Delegate (Windows x64)

Welcome to the Blender 5.3 Alpha Y-Up release for Windows x64 with full OpenMoonRay Hydra Render Delegate and OptiX GPU Cycles integration!

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What is New & Included

1. Y-Up Viewport & Coordinate System

• Native Y-Up Orientation: Blender viewport, navigation, camera controls, and transforms natively treat Y as Up and Z as Forward, seamlessly matching game engines (Unreal, Unity) and industrial OpenUSD workflows (NVIDIA Omniverse).

2. USD Importer 'Load Y-Up' Feature

• One-Click Y-Up USD Import: New 'Load Y-Up' checkbox in the USD Importer operator presets and general panel.
• Hierarchical Transform Safety: Correctly imports complex multi-object hierarchies (e.g. 900+ part automotive assets) without geometry explosion or sheared parent-child relationships. Automatically handles both Z-up and native Y-up stage assets.

3. Integrated DreamWorks OpenMoonRay Hydra Render Delegate

• Production Path Tracing in Blender: Full Hydra MoonRay viewport and final (F12) rendering inside Blender.
• OptiX GPU & OIDN Denoising: Hardware-accelerated denoising with high-fidelity production materials, RDL2 shading nodes, and ISPC multithreading.
• USD Animation & Mesh Fixes: Resolved memory deallocation crashes and fixed skeletal/subset animation rendering on models such as animated USDZ assets.
• Pre-installed Addon: hydra_moonray is pre-configured and ready to use in the Blender bundle.

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Downloads

Asset	Description	Size
blender_yup_5.3_alpha_win64.zip	Complete Blender 5.3 Alpha Y-Up standalone bundle (includes Python 3.13, Cycles GPU OptiX, MoonRay delegate)	~816 MB
blender_yup_gpu_win64.zip	Complete Blender Y-Up GPU bundle with CUDA/OptiX and MoonRay runtime	~1.12 GB
openmoonray_win64_runtime.zip	Standalone OpenMoonRay Windows x64 runtime libraries, shaders, and tools	~423 MB
hydra_moonray_blender_addon.zip	Standalone Blender MoonRay Hydra Addon (Installable via Edit > Preferences > Add-ons)	~195 MB

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Requirements

• OS: Windows 10/11 64-bit
• GPU: NVIDIA RTX (Recommended for OptiX denoising & GPU Cycles acceleration)

Blender Y-Up — macOS Apple Silicon (Latest)

Blender Y-Up — macOS Apple Silicon (ARM64 · M1/M2/M3/M4)

Auto-built from 5ff9ce4b0991654c396cf0934a0ccaf3d3232f55 on 2026-05-17T21:14:40-04:00

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What's included

Feature	Status
Y-Up viewport	✅ Y axis is up, Z is forward (Unity/Unreal-style)
Metal GPU rendering	✅ Hardware-accelerated Cycles on Apple Silicon
OpenImageDenoise	✅ AI denoising
Cycles + Embree	✅ CPU path tracing
USD / OpenVDB / Alembic	✅ Full pipeline formats
OSL shaders	✅ Open Shading Language
Python scripting	✅ Bundled Python

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First Launch — Gatekeeper Warning

This binary is not code-signed. macOS Gatekeeper will block it on first open.

To bypass: Right-click Blender.app → Open → click Open in the dialog.
You only need to do this once.

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Requirements

• macOS 13 Ventura or later
• Apple Silicon Mac (M1, M2, M3, or M4)

Blender 5.2 Y-Up + GPU (CUDA/OptiX RTX 3090)

Blender 5.2 custom build: Y-Up viewport orientation + CUDA/OptiX GPU support (RTX 3090). Enable GPU under Edit > Preferences > System > Cycles Render Devices.