multiply node is clamping?

Sub forum for bug reports

Moderator: juanjgon

Forum rules
Before posting a bug report, please check the following:
1. That the issue has not already been disclosed
2. That the issue is specific to this plugin, and not Octane in general (Try reproducing it in Standalone)
Bugs related to the Octane Engine itself should be posted into the Standalone Support sub-forum.


All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
C. RAM Capacity (i.e. 6 GB)
D. Nvidia driver version (i.e. 7.50, 7.5.22)
E. OctaneRender Standalone version, if installed (i.e. 2.24.2, 2.23, etc.)
F. OctaneRender plugin version (i.e. v2.25 - 2.21)
G. Host application version, including build number if available (i.e. 3ds Max 2016 Build 18.0)
Post Reply
WhyGee
Licensed Customer
Posts: 189
Joined: Sun Jun 22, 2014 9:10 am

Hi,
I've noticed that the multiply node in v3.06 TEST2 is clamping inputs. Attached is a scene with a dark red color connected to a multiply node with the second input with values above 1 but there is no change. Only < 1 darkens the color, anything above looks like is being clamped.
If possible could you please provide a fix for that soon?

Thanks
Yaniv
Attachments
octane_multiply_clamping.rar
(24.77 KiB) Downloaded 232 times
User avatar
juanjgon
Octane Plugin Developer
Posts: 8867
Joined: Tue Jan 19, 2010 12:01 pm
Location: Spain

Hi,

Do you know if this is something new in the latest build? It seems that even the texture RGB node only works in the 0..1 range.

Thanks,
-Juanjo
WhyGee
Licensed Customer
Posts: 189
Joined: Sun Jun 22, 2014 9:10 am

It definitely wasn't clamping before but I don't know when it changed. If you remember I asked you once how to do an add operation which involved multiplying the 2 inputs by 2 and then mixing them together. So now although there is a new add node, the previous setup stopped working because of the clamping.
WhyGee
Licensed Customer
Posts: 189
Joined: Sun Jun 22, 2014 9:10 am

the color correction brightness seems to works for now so I can manage meanwhile without multiply. but it would be great for a quick fix soon especially if it does it to textures as well.

Thanks
User avatar
juanjgon
Octane Plugin Developer
Posts: 8867
Joined: Tue Jan 19, 2010 12:01 pm
Location: Spain

I've reported this issue to the Octane core devs. They are investigating it.

Thanks,
-Juanjo
WhyGee
Licensed Customer
Posts: 189
Joined: Sun Jun 22, 2014 9:10 am

can I use the latest plugin build with the previous standalone version to get it to work meanwhile?
User avatar
juanjgon
Octane Plugin Developer
Posts: 8867
Joined: Tue Jan 19, 2010 12:01 pm
Location: Spain

Nope, sorry. The standalone is not used by the plugin at all. Each plugin build has its own internal Houdini libs. Let's see if the Octane devs can find something about this issue.

Thanks,
-Juanjo
WhyGee
Licensed Customer
Posts: 189
Joined: Sun Jun 22, 2014 9:10 am

Oh really. so it's unnecessary to install the standalone?
User avatar
juanjgon
Octane Plugin Developer
Posts: 8867
Joined: Tue Jan 19, 2010 12:01 pm
Location: Spain

Nope, not at all. The Standalone is needed only in the render nodes for network rendering, but the plugin doesn't need the Standalone to work.

Thanks,
-Juanjo
Post Reply

Return to “Bug Reports”