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IN V2

sorry JD but i tried now for half an hour.

i created a scene with 3 area lights..i assigned the emitter material on the part level.
when i render it it stops saying no emitters in the scene.

i have all my materials on a separate disk..tried to redirect it to it..nothing works

I tried to duplicate this:

1. made three sldprts
2. inserted them into a new sldasm
3. created three materials (one an emitter)
4. assigned one material to each part
5. rendered

This didn't produce an error, so could you try that and see if it also works fine there? Then, could you say, the ways in which your scenario differs from the above?

Thanks...

i narrowed down the problem..emitters work for me on solids but not on surfaces.

could you check if this works for you with surfaces? thanx

i made a solid and attached the emitter to the whole solid, now i get this:

***********************************
Body Errors (1)
***********************************

-- BEGIN Body Error #1 --

Entity:LIGHTBOX_1_1000X1000-1/Extrude1
Exception report.
Type: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: Maxwell.SolidWorks
Has StackTrace: True
BEGIN STACKTRACE: 'System.NullReferenceException'
- at Maxwell.SolidWorks.swMaterials.mxMesher.WriteBody(Object pObj, Object[]& pParams)
END STACKTRACE: 'System.NullReferenceException'
Has InnerException: False

-- END Body Error #1 --

***********************************
Component Errors (1)
***********************************

-- BEGIN Component Error #1 --

Entity:LIGHTBOX_1_1000X1000-1
Exception report.
Type: Maxwell.SolidWorks.StopProcessingException
Message: Wrapping and re-throwing a NullReferenceException.
Source: Maxwell.SolidWorks
Has StackTrace: True
BEGIN STACKTRACE: 'Maxwell.SolidWorks.StopProcessingException'
- at Maxwell.SolidWorks.SwAddin.ProcessComponent(Component2 pComp, Delegate pMethod, Object[]& pParams)
- at Maxwell.SolidWorks.swMaterials.mxMesher.WriteComponent(Object pObj, Object[]& pParams)
END STACKTRACE: 'Maxwell.SolidWorks.StopProcessingException'
Has InnerException: True
Inner Exception follows.
Exception report.
Type: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: Maxwell.SolidWorks
Has StackTrace: True
BEGIN STACKTRACE: 'System.NullReferenceException'
- at Maxwell.SolidWorks.swMaterials.mxMesher.WriteBody(Object pObj, Object[]& pParams)
END STACKTRACE: 'System.NullReferenceException'
Has InnerException: False

-- END Component Error #1 --

ok..i deleted the solid (which was the old one) kept the curve and extruded it again, attached the emitter and now it's working

another question

i assign materials on a part level..embedded..i like it that way.

when i open an assembly i have a ton of old materials showing up, that i used before..i hate that. i'd love to select unsused and delete them.

something is very wrong..every time i attach a new emitter i have to delete the geometry..re-extrude it and attach the new emitter.

it definitely does not work with surfaces..i tried to trick it by assigning the emitter first to the solid and then deleting the other 5 faces, so only 1 face is left. not working

Thanks for the extra info - I was able to duplicate it now...hold on awhile and I'll figure out what the problem is.

Pretty sure I found the cause - this is not necessarily related to emitters; it is caused by a combination of factors. To reproduce it:

- select a surface body's without the surface bodies filter activated
- this does not actually select the body; it selects the surface's only face
- since it is a face-assignment, the plugin enables multi-materials for this surface
- later on during export, this causes a failure in the assignment logic

You can work around this (until I update the plugin) by avoiding assigning a material at the face level on a surface body. For surface bodies that are already in this state, you will need to remove the material assigned to the surface's face, and re-apply it at the body level. Alternatively, in a .sldasm, you can assign the material to the surface at the component-level, as this will override anything else.

Let me know if this correlates to the issue you're seeing there.

ok thanx JD i will try this out. EDIT: no success..getting this nasty error message from above again..will wait for the new plug-in...lost patience..sorry


what about the other 'problem'..the tons of old materials in an assembly that are no longer in use

You still get an error when you assign your emitter at the component-level in the .sldasm? On the other point, I got sidetracked and forgot to reply. Problem there is that when you open a .sldasm, two things happen:

1. the materials stored directly in the .sldasm are read
2. any materials in referenced .sldprts are brought into the session

Therefore, the way to clean up is:

1. open the .sldasm
2. delete the unnecessary materials
3. save & close
4. open each referenced .sldprt
5. delete the unnecessary materials
6. save & close

That should do the trick - the main theme is that deleting a material from a .sldasm does not also delete it from any referenced .sldprts. I don't think there's any way to change that, but I'll take a look.

thank you..well could we have a button then that picks the unassigned materials in the assembly..or does the plug-in think they're all assigned?

haven't tried assigning the emitter on the assembly level..will do it now...

assigning on the assembly level works..thanx for all the help

On a 'select unused materials' command, it should be possible to do that...I'll see what I can do.

In the next update, the material list's context menu will have a new 'Removed Unused' command.