Jump to content

Tobitobs

Members
  • Content Count

    42
  • Joined

  • Last visited

  • Days Won

    3

Posts posted by Tobitobs


  1. Hello artmonky,

     

    5k Poly is quite low I'd say... you have so much empty space in your twigs, in some engines it is better to have more poly but have less "wasted" space in the opacity map.

    I think you should work with LODs, the low poly flat branches dont look good when they are close to the viewer or is your game more "stylized"? And which game engine are you using?

     

    Cheers

     


  2. Hello,

     

    I have no idea if this technical possible but it would be awesome if we could use photoscanned trunks as a mesh for our growfx object. Maybe convert a IG_mesh builder into a metamesh?

    When I use a photoscanned trunk in 3ds I often use a slice mod to get a clean cut on the top, maybe growfx can use this flat shape to connect to another meta mesh?

     

    Cheers,

    Tobi

    • Thanks 1

  3. Hi Mark,

     

    I dont have much experience with unreal but do you know http://overview.artbyrens.com/

    ? :rolleyes: He uses growfx for the vegetation as far as I know.

    For the whole real-time thing I guess the polycount has to be as low as possible. And most people use an alpha-map as opacity in combination with a low poly mesh.

    "artbyrens" doesnt use very complex shaders, just diffuse/normal/height/transluceny + Alpha and it looks super good to me.

     

    Cheers

     


  4. wow thats tricky do you have textures of the bark and the red cambium?

    Inside growfx I think I would seperate the parts with  different distributor, in order to assign different materials. To archieve the step between lower and upper part you could use  displacement I think the bark is romoved like 4cm deep during the cork harvest.


  5. Hello,

     

    I just wanted to share a (for me) super usefull photoshop tool: http://www.polyleaf.com/index.php/products/

     

    "FixEdgesForAlpha" it's acutally a PS action. "Two actions for making alpha with less haloing.  One blurs the original creating soft edges.  The second copies the base image and nudges it out on all four sides one pixel"

     

    Maybe it is a tip rather for the beginner :D When I started cutting leaves out to get a alpha mask for the opacity I had the problem with a small white boarder around the edges (I think the correct discription is "haloing" or "bleeding").  The first noob mistake was to let the background empty.... to cut a long story short: The FixEdgesForAlpha solves this problem really easy and you get really clean results.

     

    Cheers,

    Tobi

    • Like 1

  6. Hello,

     

    I'm a bit confused where do I have to place the pivot of my geometry to use it as instanced geometry in my growfx object?

    I've read in a older thread that the z-Axis has to be along the grow but the pivot itself has to be in the center of the object?

    post-865-0-92848600-1489482906_thumb.png

     

    I thought it would be more logical to place it where i want my geometry to start:

    post-865-0-34962100-1489482907_thumb.png

     

    but if I do this my geometry gets an offset in the wrong direction :( I looked the example Eduard postet https://exlevel.com/forum/index.php?/topic/74-instanced-geometry-issues/?hl=pivot&do=findComment&comment=322

    and did the same(with xform mod etc.) but somehow my result is different. Do I have to edit the normals of my mesh?

     

    Cheers


  7. maybe message Eduard directly guys. This forum thread is growing and growing :-P

    All I can say is that there is a huge* student discount  and this software is super awesome. Before I bought growfx I searched quite a time tested speedtree and plantfactory but growfx is all you need  :wub: 

     

    *dont want to tell numbers maybe something has changed.


  8. Have you watched the tutorials?

    https://exlevel.com/tutorials/

    https://www.maxtree.org/blog/

    http://www.zwischendrin.com/blog/2012/07/06/growfx-1-8-6-tutorial-how-to-get-started/

     

    And which plants do you want to model? The video loooks more like fantasy.

    Well I usually try to get botanical correct plants so my first step is allways collecting information and reference picture of the plant in books, walks in the nature and the internet.

    I highly recommend the site http://www.baumkunde.de/(it's german but you can search for the botanical name) and you mostly get very good pictures and what is really good for our purpose: You get picture of the front AND backside of the leaves. After saving the pictures I go in photoshop and prepare the leaves by cutting them out and getting the Alpha-mask... Before I explain every step, are you completley new to growfx or is the general workflow clear?


  9. Hello,

     

    I know it's a really genal question but what render engines do you guys use/prefer? And which one works best with our favorit vegetation tool? At this time my decision hovers between vray and corona (both have a super student discount ;-))

    I'm not that deep into the technical backround but I've read that a GPU-renderer useses only the gpu vram and not the ram. So CPU render is better for large scenes?

     

    Cheers Tobi

×
×
  • Create New...