XNA Creators Club Online
Forums Hi, Visitor Sign In
community forums
XNA Community Forums » General » Artist's Corner » "Downscaling" polygon count
Page 1 of 1 (13 items)
Sort Posts: Previous Next

"Downscaling" polygon count

Last post 01-08-2009 2:09 AM by Daaark. 12 replies.
  • 08-28-2008 3:33 PM

    "Downscaling" polygon count

    Reply Quote
    Hi.

    I have a 3D model with a very high polygon count. I would like to decrese the polygon count, but deleting individual vertices and then setting up new faces is not a realistic solution. Does anyone know a program that can smartly downscale the polygon count of a 3D model, without making the model look to bad?


    Nordic Realms (XNA MMORPG) -  My blog
  • 08-28-2008 3:50 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    What modeling program are you using? That might help people give some advice.
    Nick Gravelyn -- Microsoft XNA MVP
    Blog | Metacreature Games | Super Gravelyn Bros | Bloc
    Twitter | Metacreature Twitter
  • 08-28-2008 4:04 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    Currently i am using Blender and XSI mod tool. According to my research, none of these programs support downscaling polygon count. So i ask if anyone knows a program that does support this (and how to do it).
    Nordic Realms (XNA MMORPG) -  My blog
  • 08-29-2008 1:27 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    Actually XSI does have a polygon reduction tool. Since I don't have the software where I am right now, under the help menu, in the search box type in Polygon Reduction tool :). From what I remember though, it should be under Modify -> Poly. Mesh -> Polygon Reduction, and of course make sure you are in the "Model" view.
  • 08-29-2008 1:45 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    Cinema 4D also has a polygon reduction tool.
  • 08-30-2008 10:38 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    steffanp:
    Hi.

    I have a 3D model with a very high polygon count. I would like to decrease the polygon count, but deleting individual vertices and then setting up new faces is not a realistic solution. Does anyone know a program that can smartly downscale the polygon count of a 3D model, without making the model look to bad?


    SoftImage XSI Mod Tool does have A PolyGon Reduction tool.

    To get to it switch the Defualt Layout for XSI, Go To Modes then Select(Sorry my XSI is messed up and I don't see the Modes menu anymore, so I am going on memory) XSI Defualt Pro or something like that.

     Now select the mesh that you want to be polygon  reduced, Then click the Modify Section and Click on the Poly. Mesh button then when the menu comes up choose the Polygon Reduction Tool, then you should be presented with a prompt to tweak how much you want it reduced..

    Sorry If any information is wrong, my XSI Mod tool is really meshed up.


    Gamertag= P13Darksight
  • 01-04-2009 4:07 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    XSI isnt currently available for download. I've been looking for a while for an open-source poly reduction tool and havent found anything (only things like Vizup which are in the 100s of dollars mark). Is anyone aware of any other tools that are free?

    thx
    Steve
  • 01-04-2009 9:38 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    rousseauhk:
    XSI isnt currently available for download.

    XSI ModTool Pro is free for Creator's Club Premium members
    Microsoft XNA MVP

    12 months, 12 samples | Multithreading in XNA using Double-buffering
  • 01-05-2009 2:56 AM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    If you have to pay to get premium CC then it's not really free is it?

    /Steve
  • 01-07-2009 6:45 AM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    For anyone else who is looking for it, I've found a function in Blender to automatically reduce poly count.

    To do this:
    1. Select the mesh you want to reduce
    2. In object mode, add modifier "Decimate"
    3. Change ratio to the amount of reduction you want (e.g. ratio = 0.2 means you will remove 80% of polygons)
  • 01-07-2009 11:23 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    I've never been able to get a lower polycount automatically. It always involves me doing a bit of tweaking to make sure I get a good silhouette and mesh deformation. But that's for organic stuff, I don't really do much other than that.
  • 01-07-2009 11:35 PM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    3D Max's optimize feature reduces the poly count quite nicely most of the time.
  • 01-08-2009 2:09 AM In reply to

    Re: "Downscaling" polygon count

    Reply Quote
    Blender can get the job one.
    So can a little free program called MeshLab.

    However, you usually don't get the nicest of results like that.

    You might want to remodel a new model from scratch using the higher one as a guide to follow, or maybe ask on polycount for high to low techniques.
Page 1 of 1 (13 items)