The same improvements in quality and speed that were released for Revit cloud rendering a few months ago are now available for 3ds Max, AutoCAD, and Navisworks users.
Here is a brief summary of the improvements
- New path-tracer engine
- New more efficient denoiser
- Better global illumination and area lights
- Faster rendering times (see also frame-splitting below)
- New post-processing tools
- New progressive preview for Panoramas and Solar studies
Her is a Link to the original release for Revit renderings:
https://autodesk360rendering.typepad.com/blog/2018/12/rendering-engine-improvements.html
A link to a later adjustment to address noise in transparent surfaces.
And a link to the new Frame Splitting release https://autodesk360rendering.typepad.com/blog/2019/03/cloud-rendering-frame-splitting.html
Limitations
Autodesk Generic material
Avoid using Autodesk Generic as a transparent material as the correct behavior has never been defined and different applications will provide different or even wrong results.
Use Glazing or Solid glass for consistent and accurate results between local and cloud rendering.
3ds Max
- Autodesk Solid Glass material - The previous cloud renderer incorrectly calculated the glass absorption, resulting in an exaggerated transparency. That is now fixed, so your glass will render much darker. Keep in mind that the color you specify is the absorption expected at 6mm, so adjust it accordingly to compensate for thicker or thinner glass panels.
- The cloud rendering uses more advanced materials shaders and exposure techniques, so renderings submitted with Native exposure can look different. Adjust the exposure on the web Gallery Post Process or use Advanced exposure.
- Colors with one or more RGB values set to 0 are unrealistic and if the exposure is adjusted to slightly overexpose the image you will see some color shifting for those materials.
- Bump Amount when using procedural maps is not well defined. It might appear too intense or not intense enough in the cloud compared to local rendering.
- Roughness implementation is different. For values other than 0.0 and 1.0 the amount of roughness will appear different.
AutoCAD
- There is an issue with the field of view, and in some cases renderings might see a wider or narrower view angle than what was intended. We are working on a fix.
Navisworks
- Navisworks projects can be very large and fail to render because of memory limits in the cloud rendering nodes. We have a fallback procedure that re-tries failed jobs on the largest possible machines we have available, but that might also fail in some cases. We will evaluate possible memory reduction techniques over time and release updates when ready.
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