Hi.

Somehow I don't come close to where I want to go. Who can help me?

The series of vintage airplanes of the first hour is all made of convas and 
wood. With the help of Tim Attwood and many others, I created some sort of 
canvas texture. It works if you look from the lightened side onto the 
canvas. But when looking from below, you would expect some transluscent 
light but it is like a big block of shadow. Please see the three pictures I 
have attached, they show my canvas from atop, from below, and a real photo 
of canvas how it actually should be when watching it from below. NOT a plain 
transparency I need. Also, when recognizing structures below the canvas, 
they appear kinda smooth, blurred.

I am not too experienced if it comes to create materials which are 
"light-proof". Therefore, I need your help. Bear in mind, canvas allows to 
recognize, somehow, elements below the canvas, like parts of the wooden 
frame of the airplane. Who can help me to create a light-proof canvas 
material?

Here's the current canvas code:

#declare Wing3 = texture
{
 pigment
 {
  image_map
  {
   png "Canvas.png"
   transmit all 0.15
  }
  rotate 90*x
 }
 normal
 {
  bump_map
  {
   png "canvas.png"
   interpolate 2
  }
  rotate 90*x
  scale 4
 }
 finish { specular 0.3 roughness 0.05 }
}


Plenty thanks!

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Attachments:
Download 'SL Crazy Wings - The Run - Top.jpg' (40 KB) Download 'SL Crazy Wings - The Run - Bottom.jpg' (49 KB) Download 'Sikorsky S-2.jpg' (67 KB)

Preview of image 'SL Crazy Wings - The Run - Top.jpg'

Preview of image 'SL Crazy Wings - The Run - Bottom.jpg'

Preview of image 'Sikorsky S-2.jpg'