A collection of ten Picea abies/Norwegian spruce trees of three different ages - 3 old trees, 3 intermediate trees and 4 saplings.
The directory hierarchy that you'll download upon purchase is suited for direct integration with Forest Pack, including an xml-file and thumbnails for the library. An OBJ file is provded for each tree, containing one object for each material (trunk, branch, needle 1, needle 2 etc.). All you have to do is follow the instructions in the readme-file to import the OBJs into a scene, assign the correct material IDs to the various parts and attach them together to form the trees. Along with the instructions are an image of a suggested material setup within 3ds Max and using V-Ray. All trees use the same Multi-/Subobject-material, so you'll only have to set up the materials once. If you don't use Forest Pack, the same instructions still apply of course - it's just that some of the files included are no longer needed in that case.
They all feature seamless oblong trunk and branch high-resolution textures (included) for maximum efficiency, as well as needle textures. The textures are self-made, created from pictures of Swedish specimens taken by the author.
The trees have four different types of needles assigned at random. The needles are single polygon planes with opacity maps.
The three older trees' trunks have a patch for a seamless transition from the procedural texture looped over the trunk to the mapping used for the roots. The older trees' trunks also have two different versions - one low poly and one high poly. The low poly version along with the texture as displacement map is recommended if not using proxies, since displacement maps cannot be used with proxies. Otherwise, you can use the high poly version which has adequately high-resolution displacement applied to it geometrically. Using Forest Pack or proxies is recommended for these large models with the RAM in today's systems.
The poly counts are as follows (numbered in the same order as in the thumbnail featuring all trees in their regular materials, with the three old trees first, then the three intermediate trees, and finally the four saplings):
Model name: Polygons Vertices
PiceaAbies1: 2169937 7594727
PiceaAbies1 (high-poly trunk): 2257603 7682603
PiceaAbies2: 2156251 7544654
PiceaAbies2 (high-poly trunk): 2243917 7632530
PiceaAbies3: 1609663 5589305
PiceaAbies3 (high-poly trunk): 1697329 5677181
PiceaAbies4: 647673 1836982
PiceaAbies5: 2182124 7215834
PiceaAbies6: 2185156 7224583
PiceaAbies7: 77917 240268
PiceaAbies8: 75861 255225
PiceaAbies9: 116959 394331
PiceaAbies10: 61091 206818
The texture resolutions are as follows (the trunk texture is provided in multiple resolutions):
Trunk: 7185x16176, 4096x9222, 2048x4611
All four needle textures (diffuse and opacity): 1391x128