Pfx Cliping/rendering Problems... Help!

[lunarhavok]

I'm trying to apply pfx to a HUGE polygon island (with the distance tool the geometry measues 34,444.5 in width and 91,213.1 in length) Scale was frozen back to 1 for the object. Now when I try to render any pfx on the island, the strokes closet to the camera render just fine, but any strokes that are far away from the camera are being clipped off. Take a look:

Here's the island w/o pfx:

Here's the pfx:

Here's the alpha channel:

Can anyone help out with this?????????????

[duncanbrinsmead]

Try increasing your near clipping plane as far as possible. Also pull in your far clip. If this doesn't work you may need to scale down the overall scene.

Duncan

[lunarhavok]

Hey thanks for the advise! I had a feeling that the scale was the issue but I was hoping it wasn't lol. I will try what you suggested and let you know what happens!

[lunarhavok]

Ok, so it was the scale of the scene that was causing the render issues. Adjusting the clipping planes for the camera didn't do too much because of the huge size of the scene. What I ended up doing was placing a polygon plane behind the paint fx. Although this allowed the paint fx to render, I didn't have a usable alpha channel. To work around this new issue, I applied a use background shader to the island and the plane, and now the paint fx render with a usable alpha channel!

Thanks for the help!!!!!!

I do have one more question though, can I use Mental Rays Final Gather to render paint fx? It doesn't seem to work on my file.

~Jaz~

[duncanbrinsmead]

You need to convert pfx to poly to render in mental ray.

Duncan

[stealth-kid]

i have a similar problem: there is a huge scene with a character which has maya hair and the render camera approaches the character from far away. when the camera is far, the hair is not rendered. it just suddenly appears at a certain frame when the camera is closer. scaling down the scene is not an option due to the fact that i was not able to scale the hair correctly. is there another way to make the hair render as it should?
thanks