Hi Akira,
Thanks for the feedback.
This issue is now fixed in the new 4.19 release.
Go to the 'Tools' tab fist, activate the conversion system and restart max to have the converter enabled.
Let us know if you have other issues.
Thanks,
neonZorglub

Thank you for fixing this so quickly! It works ...

Hi, akira
I verified and reproduced the issue you had.
I encountered the issue you had in Version 2.23.2 - 1.9
but not with the latest stable version 2.225 - 2.22
I also had the same issue when I open a 2.23.2 - 1.9 file
with the latest stable version 2.225 - 2.22.
I think the issue you had is ...

A. Operating System Win10 pro
B. Graphics Card(s) GTX780 x2
C. RAM Capacity 6GB x2
D. Nvidia driver version 372.90
E. OctaneRender Standalone version, if installed 3.03.4
F. OctaneRender plugin version 3.03.4_4.18
G. Host application version, including build number if available 3ds max 2016 18.0 sp3 ...

ka-ra wrote:Sorry but there is no difference between the two images

LOL thank you, they are the same, i just forgot to view them at 100%.

never mind, my eyes need some rest. XD

JimStar wrote:

akira wrote:and there's still a bug: when use tonemapping is turned on, and response is set to linear, the imager's gamma setting won't work at all.

This is not a bug.

with all respect, but you can set gamma for "Linear/Off" in standalone 2.24.2

Yes, the octane imager gamma is at 1.0 and I still get double gamma.
If I set 3Ds Max gamma to 1,0 the material editor previews are completely useless but Octane is acting as it should. If I set 3Ds Max gamma to 2,2 the material editor previews are as they should but only linear response is ...

3ds Max plugin, "Linear" response:
1.png
Standalone, "Linear" response:
2.png
3ds Max plugin, "Agfacolor HDC 400 plusCD" response:
3.png
Standalone, "Agfacolor HDC 400 plusCD" response:
4.png

Hi Jim, I don´t fully understand?
Everything works nicely except the response curves/LUTs. They ...

Thnaks for the great job!

if i were you, i would use particle flow instead of scatter obj.