Transparency to PNG texture mesh?

Rhino Rhino for Windows
1

I have one texture that I am able to make transparent and another that I can’t…and I can’t figure out why one works and the other doesn’t. What I"m trying to do is ad a security wire mesh to a glass window in a door… Like this: http://www.cdlocks.com/blog/wp-content/uploads/photo-11.jpg

Help. What settings would I need to apply to a texture file like this one in order to make the white transparent and leave the mesh black…

wire-mesh-fence
wire-mesh-fence.png800×800 76.6 KB

2

Hi Peter - if you add the image as a texture for color and again in the transparency channel, with the output inverted in the transparency channel, it should work.

image
image.png494×662 16.5 KB

image

WireMesh.3dm (563.7 KB)
-Pascal

3

Thanks Pascal. I gave it a try and it did work on the JPG but not on the PNG attached. The PNG shows black. Any idea why?

wire-mesh-fence
wire-mesh-fence1136×880 296 KB

4

Hi Peter - this works better to assign a black or darkish color to the material and remove the image from the color channel., just use it for transparency, with the transparent color set to a light gray wiith 10% ‘slop’

image

And the output inverted as before.

-Pascal