Unwanted transparency!

[DiegoFlores]

Hello everyone!

I have this problem that suddenly started to happen.

Im trying to render opaque glass for an exterior facade with a vrayMtl.

The reflect parameter is set to gray, but the refract is set to black to suppousedly make it like a mirror.

Im not using any opacity maps either.

But everytime i render, it makes just this material a little transparent and it seems to be fixed if i disable reflections turning it to black.

 

It makes no sense and i have also noticed that its not a true material transparency(if i put something behind it would also make it transparent all the way to the background image).

 

I am wondering if there is a setting that might be doing this, i have allready tried starting over with the scene and materials.

 

[ATTACH]29212[/ATTACH]

[martincg]

i think it is not transparency, but reflections - change background when you render / render it with alpha - *.tga, *.png/ and then add background in PS

 

if you add background just like pics with screen mapping what is in background same pics is in foreground

 

- spherical maps with spherical mapping are rendering ok on reflected materials

Edited September 28, 2008 by martincg

[DiegoFlores]

you mean this supoused transparency is the refection of the forefront?

i tried renderng without an enviromental map but te color of the background still affects the image like it was transparent, or maybe is still refllecting it like you said.

 

I didnt seem to have this problem before.

by spherical maps, you mean HDRI maps?

i dont have one of those. I was actually planning to take pictures of the trees in front of the glass to use them as difusse textures, layered on top of the glass color.

 

i will try adding the background in Photoshop but still this reflection thing is not very clear to me.

[DiegoFlores]

ohh yeah you are right!

i tried puting a box in front of the glass and the reflection of this box makes it truly opaque.

thanks martin!

[martincg]

by spherical maps, you mean HDRI maps?

 

could be HDRI, could be only *.jpg , primary reason is spherical mapping - for right reflections and refractions

 

http://www.sharecg.com/v/3852/texture/spherical-sky-map!

Edited October 3, 2008 by martincg

[Craig Ramsay]

I seem to remember this happens if you have your background mapping coordinates set to screen in the material editor. Try changing the mapping coordinates to something else or a better idea would be to just comp your background in after the render is done.