Forum: Carrara


Subject: Reflection problem..any ideas?

Nicholas86 opened this issue on Feb 21, 2004 ยท 13 posts


Nicholas86 posted Sat, 21 February 2004 at 4:37 PM

I'm having a problem with reflections. For some reason the mirror circled is reflecting a black dark image and not the actual environment. Has anyone seen this or had similar problems? Brian

Nicholas86 posted Sat, 21 February 2004 at 4:38 PM

And here is the image minus the circle so you can see it better.

Kixum posted Sat, 21 February 2004 at 6:03 PM

I know it sounds dorky but my experience with something like this has always been the fact that the mirror is turned wrong. If you're sure that's not it, then I'm stumped. You could email the file to me if you're comfortable with that. -Kix

-Kix


EMC posted Sat, 21 February 2004 at 8:10 PM

Is the mirror a single plane, or does it have three dimensions (i.e. depth). I have had stuff like this happen with single planes. EMC


Nicholas86 posted Sun, 22 February 2004 at 1:25 AM

I gave it some depth to try that out, but no luck. Turned wrong? What do you mean Kixum? Brian


TOXE posted Sun, 22 February 2004 at 5:19 AM

I don't understood what is the black dark image that your mirror reflect. Have you a background? The room is a vertex model or a spline? The mirror have refraction? BTW try this: -assign a simple shader to the mirror (only colour value and reflection), sometimes reflections and refractions have little bugs. -if the mirror is a vertex, crease all the edges Hope this helps, TOXE


 


Nicholas86 posted Sun, 22 February 2004 at 1:08 PM

No luck with any of that. Its a refraction or reflection problem. I've done some animation of the scene and movement of the camera changes the dark black image.


falconperigot posted Sun, 22 February 2004 at 1:42 PM

Have you tried with caustics enabled? Mark


TOXE posted Sun, 22 February 2004 at 1:45 PM

mmhh, i'm almost sure that i can resolve this problem, can you send me your file?? Let me know... TOXE


 


Kixum posted Sun, 22 February 2004 at 3:39 PM

Nicholas86 sent me the file. I had a hard time rendering it (because I wanted to render it in two seconds) so I kept turning things down/off until I could get it to render very quickly. It turns out that the sky atmosphere plane is cutting through your scene. I'm would hazard a guess that you could turn it off and still get the effect you're after. Not totally sure though. The render above is an extremely turned down revision of the original file and you can see everything in the mirror now. Weird but glad it could be figured. This is a neat setup and I hope you can achieve what you're after without the sky atmosphere turned on. -Kix

-Kix


EMC posted Sun, 22 February 2004 at 3:48 PM

If it is the sky plane, you can set the size of the atmosphere, with maximum altitude setting on the properties tab... Don't know if that's the problem though... I've had some problems with it when rendering high altitude images. EMC


Nicholas86 posted Sun, 22 February 2004 at 6:09 PM

YAY! Thanks Kixum. I hadn't thought of that. I should have guessed though, I seem to recall someone else having similar problems. Thanks again. Brian


Sydney_Andrews posted Tue, 24 February 2004 at 2:38 AM

I hate it when that happens! :) Something i do is to just move everything up and just work from there. Also, out of curosity, why are you using the sky? E