Procedural Pine Tree Creation

Procedural pine tree creation, simple random forest scene.

Can save Pinetree as B3D mesh. (about 1000 Tris)

Includes Blitz3D source, containing code for:

-procedural pine tree creation

-simple random forest scene

-grass (static so far)

-2-level LOD using quads with prerendered perspective textures

-skybox

-walktrough

-save B3D mesh

-save texture with alpha to 32bit TGA

controls:

 cursor and mouselook to steer 

 space to toggle demo mode.

 s to save the tree mesh as b2_Pne4m\my_pinetree.b3d

 d to toggle duck / stand

 esc to exit

License: free to use including commercially.

Update V 1.1:

 This 2nd version fixes some LOD handlng bugs. It also uses 4 times more

 prerendered perspective textures for the distant trees:

 new is 12x12=144 on a 2048x2048 texture.

 However, there is a systemic problem: when a mesh with a 

 masked texture is alphaed from 0.9999... to 1.0, there is a

 noticeable pop-in artefact, far from smoothly fadeing in.

 Also the UV setting to select a certain perspective doesn't

 work well and results in sideways jumping trees. This could 

 be fixed by using 144 individual textures instead on the

 single atlas texture used now, but it seems a bit extreme.

 For now I conclude the LOD system is pretty bad and you 

 may get rid of it completely, or replace it.

I've also added an alternatively saved pine leaf texture, using 

an other scaling algorithm to create the mip maps for the dss 

texture, this is crispier, maintains details in the distance,

but also flickers more and may look more like acorn than pine 

due to it'd crispyness. Anyway, try it and use the one you like 

more. (TANNE-LE.dds)