Glass changes colour of materials underneath

[jhiker]

Hoping for a quick fix here..
My white ceramic tubes have gone black when I put a glass cover tube over them.
If I hide the glass cover they are white as intended.

I have the (Clear Double-Sided #2) glass material type set to 'solid glass'.
Thanks.

[jhiker]

Additional images

[m2tts]

Try upping those raybounces.

[guest84672]

and check detailed indirect illumination in the realtime tab.

[jhiker]

and check detailed indirect illumination in the realtime tab.

Thomas - I have 'detailed indirect illumination' checked, as you can see from the screenshot.

[guest84672]

yes - but only 5 ray bounces. Needs at least 12.

[PhilippeV8]

Yes, 5 or below is good for scenes with no glass or single plane glass with nothing behind.

[jhiker]

Struggling with this - 16 bounces and no change.

[jhiker]

Might be getting somewhere...

If I do a 'realtime render' from the render tab the preview still appears to show 'black' materials but the rendering window appears to show the materials correctly.

Thanks for the suggestions.

[aebstract]

Anytime I do plastics, glass, etc I do not use realtime rendering, I pop my raybounces up to like 64. Just a personal thing, but the higher the ray bounces the better quality you're gonna get out of something like that. You simply can't go that high with the realtime.