MikeGardiner wrote:Hi Otoy,
I'm trying to understand why I'm getting a difference in noise levels and render times between 3Ds Max and Unity.
I have a simple scene in Unity that I exported to 3Ds Max (using Unity's new FBX tools in 2017.2). In both programs I did the following:
1) Create a simple Glossy material using default settings and applied to all objects
2) Have a single light as daylight (in Unity this is a single direction light, in 3Ds Max it is an Octane Daylight)
3) Create 2 strip lights in the scene (in Unity this is 2 objects with a black body emitter material, in 3Ds Max it is 2 Octane lights)
4) Both are set up as Path Tracing, with identical settings on both the kernel and imager / camera
They both look very similar (a slight colour mismatch but this might be due to Unity using the lighting settings for sky light, and I can't find the corresponding setting in 3Ds Max).
However... there is a significant difference in render time and noise levels.
3Ds Max - 3:03
Unity - 6:12
And, the noise levels in Unity are significantly higher - so longer render times, and more noise.
Can you advise if there's anything I might have missed that could explain this? I'm hoping there is a setting somewhere I've missed, or if there's a Unity overhead that is a known problem? Maybe an emitting mesh in Unity renders slower than a native Octane light in 3Ds Max?
Goldorak wrote:To confirm are you testing with more than 1 GPU in Unity? (which is the limit in the free version without having octane studio/creator license)
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