pictures of trees with alpha channel

[render54]

I had the address of a site where there were among other trees in tiff or png with alpha channel but I can't find it anymore.
There's someone who can tell me some address to find them.
Thank you.
♪

 

[render54]

found
always here on cad3dhttp://www.vyonyx.com/index.php

 

[render54]

for test I created a tree object by taking one from vyonyx
where there is the image and alpha channel
after some tests I had to use as a support base
a very thin two-layer wall of 0.16+0.16 which was the least that I
allowed
I couldn't create it as a family but as rvt
if someone has another way well come
in the rar I also put a cpt and a png that can serve for
the insertion in the eventual photo editing
Of course it would be enough that there was a specific command directly
in revit to do this as I saw in a 4d movie demo
where there was also command follow room

 

[Fulvio Romano]

I had the address of a site where there were among other trees in tiff or png with alpha channel but I can't find it anymore.
There's someone who can tell me some address to find them.
Thank you.
♪

trees. . I'll be detoured, but I realized that trees were only talking when I saw the picture. . .

 

[Erikilrosso]

I ask vein for ignorance, but what is an alpha channel?

 

[render54]

I think there's no need for words
or
typed alpha channel in "search with google"

 

[Tristan]

a color image is generally formed by pixels with a depth of 24 bits, 8 bits per channel. channels are red, green and blue. "summated" the individual channels return the so-called true color. some types of files allow you to store one or more additional channels (called alpha channels) that help increase the image information itself. a classic example of alpha channel is the black and white mask that generates transparency.

 

[render54]

when with revit make a render and save it as png
the default sky puts it on an alpha channel, in fact if you open the png with a photochop or corel phpaint paint program you only see the image with objects and the background disappears while remaining transparent. you can upload a background image by posting it back and get

 

[Stefano.bp]

I say thank you, soon I will have to quote with a photo insert... and begin learning some notions can only do me well!