Transparent material reflections


#1

Hi,
When assigning transparency to a material it gets more reflective, picking up colours etc. from surrounding objects in the scene. Why is this? And is there a way to make the material matt (not reflective)?


(Andrew le Bihan) #2

We’d probably need a little more information here - like what type of material you are using. But the best way we could see what was going on would be a screen capture or rendered image.


#3

Hi,
Thanks for your reply- Yes, here’s some screen grabs. The orange surface is an advanced material and I’ve tweaked the transparency without changing any other properties- the material turns transparent but it also reflects- I’d like to knock out that reflection. This is rhino 4.0 Brazil 2.0

.

It’s probably something really basic…
Cheers,
Frank


#4

No knowledge about this render engine, but what happens if you set in Reflection control,
Tint -> 0/0/0 - black
Reflect mult: 0

What would that result in?


(Andrew le Bihan) #5

OK - I’ve just been trying to repeat that, and right now I can’t find any way to repeat your settings other than to add reflection to the material.

The only thing I can think of is that there’s something screwed up with the normals on the triangle object.

Could you send that 3dm file so I can check it out?


#6

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Hi,
See attached for copy of the file plus the render that I got from it.
I did a test on a different file and got the same reflecions with advanced
materials. Basic materials’ transparency works fine and that’s probably the
way I’ll go as a workaround. I’m interested to hear what you get at your
end.

Frank


(Andrew le Bihan) #7

Frank

The file didn’t make it through. Could you send it to andy@mcneel.com by email instead?

  • Andy