Announcement

Collapse
No announcement yet.

Sphere texturing?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Sphere texturing?

    is there a way to wrap a texture round the outside/inside of a sphere so that all faces will match there neighbour?

    Im trying to create a bio dome effect but so far I have only ended up unable to get the desired effect.
    This would be the desired look http://www.tintagelbedbreakfast.co.u...oject95823.jpg

    Basically I only need it for a semi sphere.

    Thanks in advance,

    >X<

    #2
    You could try making the sphere from a cube, some guy on Polycount asked about this some time ago:

    http://boards.polycount.net/showthread.php?p=810733

    Having a sphere of all quads (instead of the single polar verticies) will allow you to unwrap it properly, meaning you wont get the proplem areas at the top and bottom of the sphere.

    To make the texture appear on both sides of the mesh, in the material editor enable '2 sided'. If you make a texture with an alpha map for the glass areas, you could actually create quite a nice effect, post your results

    Comment


      #3
      Yeah the texture is working perfectly for the visual effect. it is set to 2 sided, and is using alpha for oppacity, and normal for bulge effect.

      Thanks for the link I will look into it.

      >X<

      Comment


        #4
        ok so I still have the same issue.
        The streching of the marterial over faces that are longer, or on a larger angle causes stretching.
        This is what it looks like:
        [shot]http://img221.imageshack.us/img221/8145/probpic.jpg[/shot]

        You are looking up from under the bowel.
        The texture is double sided and the black area is transparent

        *Edit added*
        ok so this is the look i am going for:


        I want to create the appearance of a Geodesic Dome in UDK without using a static mesh.

        Anyone got any ideas?
        >X<

        Comment


          #5
          For a Bio Dome i would use a GeoSphere instead, as it has triangles that form the 5 sides.
          Besides GeoSpheres are alot easier to unwrap than a normal Sphere.

          Comment


            #6
            ok so I have made a huge amount of progress
            with use of:
            http://chronosphere.home.comcast.net...er-plugins.htm
            I downloaded a blender script to make a sphere of equal size triangles that form hexagons
            http://chronosphere.home.comcast.net...ome-teapot.zip

            I'm now at this point:
            [shot]http://img521.imageshack.us/img521/156/81472998.jpg[/shot]
            This is usable but not perfect.

            Thanks for the help so far.

            >X<

            Comment


              #7
              Is there any way to create a sphere texture which is mapped as a regular square in a material? I'd like to create some material effects which somewhat rely on the material to be a normal square which is then mapped onto a sphere. Should I just map the sphere as a cube or are there better ways?

              Majestic-X: I'm seeing some pentagons there on the wireframe, or is that desired?

              Comment


                #8
                So I thought I would update where I am at with this.

                So previous attempt never really got much better. I have since moved to using a static Mesh and applying my texture to that.

                here's the result
                [shot]http://img408.imageshack.us/img408/9909/homethroughdome.jpg[/shot]
                here's another shot. The hologram earth is just a material applied to a sphere static mesh.
                [shot]http://img535.imageshack.us/img535/903/projection.jpg[/shot]

                Any feedback or suggestions are welcome.

                >X<

                Comment


                  #9
                  It doesn't look bad. UV's are a pain in the *** to deal with, but one suggestion: I wouldn't use normal maps for something like that, I would use physical geometry.

                  Comment

                  Working...
                  X