Oak Tree Bark - Photogrammetry based Environment Material
Hey, I was recently experimenting with trees in Blender. It takes just a few minutes to make a decent looking tree there Blender, the thing is that the final look is totally material dependent. The best tree looks crap without decent material while a crappy one looks good with the right material applied. So to make my tree to look ok, I had to develop something I could apply to it.
Since my focus was on tree, and the weather sucked, I decided to re-use scans I already captured a few years badk (over 5-6 years ago). At this time my workflow wasnt good enough to turn them into something decent but now since its better I decided that it might be worth to give it a try and reprocess old data again.
And here it is. A PBR material of Oak tree bark I could apply to my tree to make it look okish.
Of course its not final, and this tree would benefit from material being blended with another one of the same type, and it will. I plan to show it in details next time - maybe even in form of full step by step 'tree creation in Blender' video if anyone is interested. So please stay tuned.For those with access to my materials library, since I find such materials extremly useful for any outdoor scene, I added this one to my library too:
https://gum.co/WJAQy
as 'gb_BarkOak610'
Cheers!
G.
Material preview - some quick 3D scene made in Blender to preview this material. The tree was generated with its free tree tool.
PBR preview: Albedo / Normal / Height / Roughness / Ambient Occlusion - AspectRatio 1:2
My current photogrammetry workflow used for this capture (more details on my youtube channel: https://www.youtube.com/c/GrzegorzBaranArt
The source object - unfortunately I didnt document stuff very well at this time (it was captured over 5 or 6 years ago) so this is the best context picture I have :)
Metashape - photogrammetry reconstruction based on 114 images.
Blender - low poly model alignment for further PBR bake. I used the same technique as I use for terrain (mode in the video below). This one was more challenging regading of proportions and alignment as instead of plane I used cylinder.
The video where I explain the technique I used to align lowpoly model over highpoly one for baking
(https://youtu.be/E_FhMXLKgAI)
The only difference is that this time I used properly scaled cylinder instead of plane to get 1:2 Aspect Ration coverage.
The material and texture-set was added to my material's library:
https://gum.co/WJAQy
as 'gb_BarkOak610'