Arion stand-alone

The finest rendering quality, GPU accelerated.


Arion stand-alone

Because the most demanding productions require the sharpest tools, we have created Arion, the first hybrid CPU and GPU render engine on the market.

Packed with unprecedented flexibility, speed and output quality, the new Arion technology is at the heart of our stand-alone renderer as well as the Arion for 3ds Max and Arion-for-Rhinoceros plug-ins.

What is Arion?

Arion is a hybrid-accelerated and physically-based production render engine. It inherits all our expertise in light simulation and makes it run on steroids, thanks to our very unique massively parallel GPU+CPU approach.

Arion is a high performance production renderer capable of producing hyper-real images.

Arion's unique approach

Arion uses all the GPUs -and- all the CPUs in the system simultaneously, not wasting a single flop available. Additionally, Arion can use all the GPUs and all the CPUs in all the other computers in the network forming a cluster for massive distribution of animation frames.


Arion 2 is able to handle very large data-sets and still deliver a very good performance. By means of using instancing, render-time displacement and render-time subdivision surfaces, it is possible to render virtually anything on a modern hardware-accelerated computer using Arion.


Arion 2 can handle most of the rendering effects which are considered standard these days such as displacements, instancing, motion blur, ... and more. And beyond the current feature list of Arion, we keep researching and developing to bring even more features in the near future.

Stable and rock-solid

The Arion 2 technology has been crafted with the highest coding quality standards in mind. As a result, its rendering core is nearly unbreakable and will relentlessly render for hours or days without ever crashing.

Interactive rendering and editing - CUDA empowered - displacement photo-realistic materials - physically-based - fast

Arion is fast, very fast

Arion raw raytracing speed is unprecedented.

Thanks to its carefully engineered rendering core, it outputs an astonishing amount of work in the same time as traditional renderers.

Beside a deep optimization of the core that affects raw speed, Arion's new sampling strategy leads to an even faster image convergence.

This excellent performance applies to all the different samplers in Arion, including Metropolis Light Transport (MLT).

One render, infinite light setups.

Realtime post-render relighting with LightMixer.

It's now possible to output all the LightMixer layers in a multi-layer EXR file and tune it in your favorite editing software such as Photoshop, After Effect, Nuke...

Just like AOVs, LightMixer layers are computed on the fly during the standard calculation of the full unbiased render or AOVs.

With this method, it's now possible to re-light in full 32bit floating point a complete animation sequence with any software that supports EXR and multi-layer EXR without the need for extra plugins or limitations due to proprietary formats.

Arion offers up to 8 LightMixer channels, plus the environment and sunlight channels, summing a total of 10 exploitable channels.

RandomControl has been working with FnordWare to provide you the best multi-layer EXR output possible. We strongly recommend their plugin ProEXR to read multi-layer EXR files in Photoshop and After Effect. Other softwares such as Nuke handle this natively just fine.

Metropolis Light Transport

For the first time on a full-featured renderer, Metropolis Light Transport (MLT) can run on the GPU.

MLT is particularly adapted to render complex light situations such as heavy caustics. It shines to render swimming pools or jewellery, for example.

If you're a professional working in optics, lighting, jewellery or swimming pools, Arion is the right software for you providing unprecedented speed and image quality, cutting no corners for a fully accurate physically-correct simulation of light.

Very large renders on the GPU

Arion can render very, very high resolution images, even on the GPU.

This feautre called 'Dicing' is part of the supersampling paremeters group.

It allows to render as large as the GPUs can handle, and much more on the CPUs.

When you are stranded on a scene that needs to render at very high resolution, dicing may help you get the job done at a little performance cost.

Here is a comparative table of memory usage versus performance when using dicing and SuperSampling:

1080p render No SuperSampling 1x1 SuperSampling 2x2 SuperSampling Framebuffer Memory
No dicing 1.53 Msamples/sec 1.53 Msamples/sec 1.53 Msamples/sec 40 MB
Dicing 1 level 1.49 Msamples/sec 1.49 Msamples/sec 1.49 Msamples/sec 10 MB
Dicing 2 levels 1.27 Msamples/sec 1.27 Msamples/sec 1.27 Msamples/sec 3 MB

Nodal material editor

With Arion stand-alone it's easy and visual to create complex, fantastic-looking materials.

The nodal editor has been carefully designed to be straightforward to use, even if you do not have any prior experience with a nodal editor.

The selected object's material is automatically isolated in the graph and its properties loaded in the attribute editor for immediate editing.

Render channels

Arion 2 extends the existing render channels, adds new ones and makes their usage more productive than ever.

Arion 2 can render all the render channels (now called AOVs for Arbitrary Output Value) at once along with the regular full unbiased render.

Here is an exhaustive list of all AOVs available in Arion stand-alone:

Main Background Lights LightMixer (up to 10 layers)
Direct (raw, filter) Indirect (raw, filter) Shadows (raw) Caustics
Specular (raw, filter) Glossy (raw, filter) Diffuse (raw, filter) Refraction (raw, filter)
SSS Volumetric Normals (world, camera) Velocity (world, camera)
Material ID (random, custom) Object ID (random, custom) Alpha (opaque, transparent) Depth
Roughness Fresnel Coverage AO

It's possible to define a custom range of roughness to set apart specular-glossies-diffuse materials to send the appropriate pixels to their respective AOV, giving you full control on your output.

All these channels can be output to 32-bit float HDR, EXR or multi-layers EXR.

RandomControl has been working with FnordWare to provide you the best multi-layer EXR output possible. We strongly recommend their plugin ProEXR to read multi-layer EXR files in Photoshop and After Effect. Other softwares such as Nuke handle this natively just fine.

HDR Light Studio© support

Arion stand-alone is the perfect tool for designers using any modeling application.

With the integration of a live connection between Arion and Lightmap's flagship product HDR Light Studio©, creating stunning product shots has never been easier and faster.

HDR Light Studio© is a product by LightMap and is not part of the Arion stand-alone package.

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Arion stand-alone is available for purchase

Purchase a copy of Arion stand-alone today for 195€ only