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questions about trees in general

Discussion in 'World Building' started by pitibonom, Feb 18, 2019.

  1. pitibonom

    pitibonom

    Joined:
    Aug 17, 2010
    Posts:
    220
    Hi all :)

    I know many of you played with treessiçnce several years.
    Vegetation is a great way of adding 'life' in a scene.
    It seems there's no 'trees system comparison' in this forum :/

    I just make a call to all those who did some tests and tries about trees performance impact.

    My question is simple:
    Take the old willow ( from the legacy assets ) just as mesh and textures. What would be the best way to integrate it in a scene, so that say.... 1K trees have le least impact on rendering speed ?
    I just need AO trees.

    I know this question is not accurate enough but as a first step i just need an 'idea'.

    Terrain trees ?
    tree creator ?
    speedtree ?
    my very own tree-maker ?

    Any advice is greatly appreciated :D

    happy Unitying !
     
  2. Stardog

    Stardog

    Joined:
    Jun 28, 2010
    Posts:
    1,913
    A single mesh with a single material (GPU instanced) and has some LOD's should be able to handle 1000 trees no problem. I have a WebGL demo with 3000 (I think) simple Unity trees that runs at 60fps, though they're not on the screen at the same time.

    I think Unity's tree system will create an unoptimised model with multiple materials. Just make sure you make the materials GPU instanced.
     
    Marcos-Elias likes this.