Thank you Gaieus for comments.
I didn't know about that renderer can supports native alpha transparency of png files. I must check that. Now I'm working on shrubs. I will publish link here.

Best Regards.

I upgrade some more images 2D from http://grannyart.blogspot.com/search/label/tree

I added background and created mask and created sketchup component. I did those operation for 13 trees. All are available on my 4shared account: http://www.4shared.com/file/215855521/3416ca7f/2D_Drzewa.html This is a big file 72MB because of big graphics.

Example is:

All trees

Main graphics of tree with new background (when background behind tree is dark tree doesn't have white envelope)

And mask for this image:

I hope that will help.

Great job man. Some shots look like real especially nature. Very good.

Rest regards.

I put my files on 4shared.com account. I hope that will help you.

Look here: http://forums.sketchucation.com/viewtopic.php?f=18&t=10762
Maybe this tutorial will be helpful.

Best Regards

The model has 4MB (trunk has bigger part of size). ZIP file has also all graphics used in this model. If you can give me a server where I can collect my files I will upload those files one more time. I know that rapidshare is not good choose but I don't know other server with collector account.

Hello

I'd like to add topic with my collection of trees. One tree was published and it looks like below:

Link for download: http://rapidshare.com/files/341249989/Tree.zip
[UPDATE]http://www.4shared.com/file/214447335/68316961/Tree.html

Second tree looks like below:

Link for download: http://rapidshare.com/files/345016289/Tree3.zip
[UPDATE]http://www.4shared.com/file/214447528/b16582f/Tree3.html

It is beginning of my plans and I will update this thread when I create new one.
What do you think?
All materials are free and free to use in your projects.

Best Regards

Hello

I did one more version of my tree and it looks like below:

I put my object file and textures on rapidshare server: http://rapidshare.com/files/341249989/Tree.zip
Sorry for not English names (Polish is my native language). I will describe names:
small_tree_full_d.jpg - main texture for leafs
small_tree_full_d_mask.jpg - alpha mask for leafs
kora.jpg - main texture for trunk
kora_bump.jpg - bump for trunk
All textures are downloaded as free.

I hope this object will be useful.
Best regards

This is my last project. Comments are welcome.

Thanks for EarthMover, your textures are great.
Best regards

I have new version of tree and I will describe how I did that:

1. I downloaded a new picture
   

2. Some operation in graphics program to delete background
   

3. Where Alpha Map is used sometimes I have white pixels and this looks not good. I add my background and I changed some colors to green
   

4. Created alpha mask for this picture
   

5. I did some operation with picture to delete trunk. I had idea to made center of tree from picture from 3'rd step and other part of tree from this picture
   

6. Alpha mask for second picture
   

7. Other steps I did as Tomsdesk wrote somewhere (how he create 2.5D tree) and effect is:
   

8. I have .skp file and I tried to add to this post but file has 6MB and it was not possible (1 picture has 3MB). I can change resolution of picture and I can add model with smaller texture. If someone want that I will do that.

What do you think about second shot?

Today I will work a little more with graphics because I have some ideas how to make it better. The trunk option is a good idea but my first thought was to find way how can I convert normal picture to 2.5D model and save time as much as it is possible during this operation. If I will do something better I will show effect. Thanks for all comments one more time.

Hello

I spend 3 hours to generate 2.5D tree from normal picture (some work in graphics program and in sketchup). In my opinion it looks good but what you think about that. Please look and write your comments. Thanks for all.

Best Regards

Because my trial version of VRay is end I'm trying SU Podium now. First view was very good and it looks for fast and easy program. Because I wanted compare VRay and Podium I tried to generate the same project in Podium. And result was pretty good except light leaks. In VRay I didn't have problem. To fix the issue I changed default materials, I used 01.OPTIMAlem.xml, default.xml defaultslower.xml files from Podium Forum but light leaks are still there. The model is a bigger file and I don't want searching whole model to find mistakes and where default material is visible. Do you have any tip or trick to fix that? I'm waiting for any suggestion.

Best Regards
Asirad

I'm using VRay render engine.

Best Regards

What do you think?
I think I found way how to draw glass but I'm not sure. Your comments will help me much.
One comment from my site: The main glass is not perfect (round). This made renderings faster (my computer is not so strong).

Best Regards

I finished my picture today (5 free hours was enough). During one test rendering I found one interesting picture (number 1). I'm waiting for your comments.

I'm in the middle of my second work for fun and I need your suggestions about picture below. Thank you in advance for any comment.

I did some changes. Background stays dark. I changed cup to shot glass Pencil is smaller and color is better. What do you think now about image?

Thank you. I'm understanding now

Thx for comments. I will do some corrections and I will post new version.
I did not study architecture (that is my hobby) and English is not my native language but I have question about glass. What does it mean shot glass? Do have some tutorials about glass in SU and VRay (other then manual) because I always have problems with glass. Maybe you could post some glass material or scene with glass and material? It would be nice to have example and make some experiments.