Glad to see you got it working. I thought those parms I mentioned looked reversed.

Thanks for the breakdown, saulgoode.

I'd say you're probably already at the best place, Graechan.

Saul cleared up the confusion on the material parameters.

I don't see many questions go unanswered on here.

For multiple light sources, you could call the plug inside a "while" construct and change the parameters with a "cond" block(case), as you loop. Or, you could just hard code it in several times.

I wonder if there are any alternatives to the this lighting plug-in?

There are several email lists that you can get hooked up with.

http://www.gimp.org/mail_lists.html

Personally i think if you blur more, and drop the opacity for it, i think it would be better to keep it as a highlight.

On a side note the create soap bubbles script allows you to open Iwarp interactively.
Have you given any thought about using it for waterdrop distortion?
This works great with my waterdrop brush.
I apply the brush on a transparent layer
Select the drop -alpha to selection
Create a new shadow layer. - fill selection with black
Then depending on the looks i may do a select shrink on the shadow and delete the inside of the shadow effect.
Set the shadow opacity - set the drop opacity
Merge drop layer and shadow layer
Open Iwarp and distort the drop to look more realistic
Use the free select tool to select just inside the drop area
select my pattern - create a pattern layer
Select the pattern layer and run Filters > Distort > Lens Distort with all settings 0 except zoom (depends on drop size)
Adjust as needed.

Done

Drop before start of waterdrop effect

Drop effect when done


The beauty of using Iwarp is that i can create as many drops as i want, use Iwarp to distort each one differently.
I can flip/rotate the results to get different lighting effects/direction after.

I still get this triplet of error messages
Going thru the posts I didn't say a solution for that
As for O, I get the messages but immediately after the filter is executed.
Is someone (maybe reading the C source) able to tell what's the matter?
Thanks...

# GnuTux and Graechan:

I don't know if this tut could be a help for your problems to encode.

update: after a restart error messages did not appear any more, strange!
but -as many other pointed out- to find an acceptable combination of parameters when running the filter non-interactively is a challenge...frustrating

I have been using this filter a great deal over the last few days. Whilst I have not received any error messages I have noticed that it is 'extremely fussy' when I attempt to use the environment map feature. It does not appear to make available all open images for selection and typically the target e-map I have opened is not available.

I would like to agree with your comment.

Actually, for me ML Bevel Reflect plugin is better for working with environment maps.