XSI 2.02 GLow Problem

[cgi-xander]

I'm having an issue with the glow property in XSI 2.02

I'm making a lightbulb. First, I know that transparent glass will block a glow, as glow is is a post effect. This is not my issue I've hidden the glass AND moved it out of the way in my scene so it does not block the filament (my glow object).

I've made a bulb base with a fillament suspended above it. I've added a glow effect to the filament. The fillament is a circle extruded along a spiraling curve. It is a surface object. Now then, up close I've been able to get the glow to work brilliantly. However, as I move the camera back a bit, the glow dissapears, and the object(fillament) simply turns white. I've found that there is a magical distance where this effect happens, as I can move the camera closer and further away to see that the glow works at a close distance, but then after a point begins to act sporadically (ie, parts of the filament glow, others don't) and then finally not at all.

Now, I brought in a surface sphere to test my filament against. I added a glow property with the same settings (noise turned off on both accounts) and lo and behold it works no matter how far away the camera is. So, it seemed to me that the glow on the filament is having trouble due to a higher geometry count. Has anyone else had trouble with this, i.e. glows working sporadically as the camera moves away or with high count poly obects? I'm going to get some pictures online and post some screen shots in an hour or so...

Thanks for the help

CGI_Xander

[cgi-xander]

Here we have the glow working on the filament, due to the camera being close.

Next we have the camera pulled back a bit

Next the Camera is pulled back even further and the glow dies entirely.

Finally I'm showing a sphere that is pulled behind and to the side of the filament, so that it is AT LEAST the same distance from the camera, definitely not closer.

So, any ideas out there? Thanks

p.s. I know there are solutions, such as creating a simpler filament... I'm just stuborn and want to know if I'm missing something obvious.

CGI_Xander

[johnnymech]

Hi,

Ive had simular problems like this with Glow since the beginning with XSI. I think if you scaled that test sphere WAY WAY down to the size of your filiment you will notice the same result. Ive noticed that its not the distance from camera alone its the size of the object in relation to distance. In other words something tiny in the scene have always shown some issues for me.
Ive always found a work around or alternate solution though so it hasnt bugged me much, just thought I would share =o)

R