July 9, 2021 Candace

Render faster with Octane for Cinema 4D

“OctaneRender is the world’s first and fastest unbiased, spectrally correct GPU render engine, delivering quality and speed unrivaled by any production renderer on the market.” – Otoy said. Put simply, Octane is a GPU render engine that uses a method to calculate the final rendered images that aim to be photorealistic. Similar to Arnold, but with GPU technology.

In this article, we will share with you some tips to increase speed in the rendering process with Octane. Let’s explore it with iRender.

1. Choose the right Kernel

The Direct Lighting Kernel is the fastest kernel but it’s not as physically accurate as the Pathtracing or PMC method, use it if you can! The PMC method is the slowest to render – we never use it unless we are trying to create caustic effects – but it is always much slower.

2. Lower the Samples

Choose the minimum sample value that gives you an acceptable level of noise/ grain. If you use the AI Denoiser you can take it very low, even to 300 in some cases. Higher values will keep fine details but render more slowly.

3. GI Clamp

Too high a value will give you fireflies (which can need A LOT of samples to clean up) – bring this value down to 1-10 and it should clean most of the fireflies up

4. Optimize your Geometry

The less geometry the faster the render! 3D scanned models are notoriously huge! Retopologize if you can.

5. Remove unnecessary objects and materials

If it’s not visible in the shot (or in reflections/refractions) get rid of it! Everything eats up VRam!

6. Limit those Lights

Limit the amount of lights in your scene to only what is necessary. Light materials (Blackbody and Texture Emission materials render even slower – try to limit these)

7. Slow Material Types

Specular Material Types are the slowest to render (Like Glass or Liquid) especially if you are using a Medium (subsurface scattering) if it’s not necessary – replace it with a more simple material like Diffuse or Glossy.

8. Displacements

Octane handles Displacements very well but they can still slow your renders – especially large 32bit images – if you can get away with Normal or Bump maps instead, do it!

9. Texture Map Size

8bit images render faster than 32 bit images and use less VRam – if you can sacrifice detail use smaller images!

10. Dynamics

Bake those simulations! Otherwise those extra calculations will slow you down!

11. HDRI

If you can replace your Area Lights with a HDRI map – do it! HDRI lighting renders MUCH faster!

12. AI Denoiser

You can use the AI Denoiser to clean up that sample noise which will let you lower the sample count way down! Doing this will speed up your renders dramatically! Don’t over do it though, especially for animation – you can get flickering and loss of detail if the samples are too low!

13. Adaptive sampling

Can render the less detailed areas of a scene super quick by turning pixels off when they reach a defined sample threshold. Don’t go too crazy with this or you’ll end up with noisy images.

14. If you have VRam to spare

Increase your Parallel Samples and Max Tile Samples

Look into the CGshortcuts’s video here to know in detail:

As I know, multiple graphic cards can boost performance or speed up the rendering process in Octane for Cinema 4D and iRender is a Powerful GPU-Acceleration Cloud Rendering Service for multi-GPU Rendering tasks. Therefore, iRender provides servers with powerful GPUs: 6x RTX 3080, 6x RTX 3090. In general, rent a Cloud GPU server and take advantage of easy and cost-effective scaling up the hardware infrastructure. Perfect for all your GPU render like Octane for Cinema 4D.

We not only have powerful configurations, but also we have excellent service with a great support team. In addition, we want to bring a comfortable and helpful feeling to all customers. They will always be satisfied when they use our service.

Let’s register HERE right now and reach out to the best service that you have never known before.

cgshortcuts.com

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Candace

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