ID 344158 - Interpolation has no effect on the Color Ramp widget rendering

Problem summary:

The Color Ramp widget should be able to display different interpolation modes, however this is currently not the case in Katana.

Customer version/platform:

Not supplied

Steps to reproduce:

1.  Open an instance of Katana.

2.  Create a Group node on the Node Graph.

3.  Edit the Group node's user parameters in the Parameters tab, and add a 'Color Ramp' parameter.

4.  Set the Color Ramp's preset to 'Rainbow'.

5.  Get the 'interp' child parameter, for example enter the following into the Python tab:
param = NodegraphAPI.GetNode('Group').getParameter('user.newParameter.interp')

6.  Change the interpolation mode, for example enter the following into the Python tab:
param.setValue('constant', 0)

Workaround:

No known workaround.

Tested versions/platforms:

• Katana3.1v1 - Windows 7 - CentOS7
  Katana3.0v1 - Windows 7
  Katana2.6v1 - Windows 7
  Katana2.5v1 - Windows 7 - CentOS7
  

- Feature did not exist before this version

Expected behaviour:

The interpolation should have an effect on the Color Ramp widget.

Actual behaviour:

The interpolation applied does not have an effect, and as such the ramp representation does not change.