Need help with Single Sided Meshes for Game Development

Game Engine Game Engine Resources
1

Hi, I’m using Blender 2.63 and would like to create a mesh object that has only single sides. I want to use that mesh in a game engine.

I searched this site for older posts related to my question and found some that stated I needed to revere the normals on my mesh and that would do the trick. I tried that, but I think I may be missing a step or two. I reverses my normals, but nothing happened. I can still see all the faces.

Can someone assist me with the proper way to produce a mesh with only single sides. I wan to be able to look in from above and see through my ceilings.

So, if we used the Cube as an example, I want to be able to look into the Cube and see in. However, if I put the camera inside the Cube I don’t want to see out. Hence single sided faces from inside the mesh.

Thank you for your help,
Calixto

2

  1. you are in the wrong topic.

  2. i dont know how to do that with a cube, but i can tell u a work around.

  • Add a cube, tab, select top face, hit del, remove face. Now u got a cube with no roof.
  • Add a plane, hit R, hit x, type 180. plane rotated upside down.
  • Place the plane above the cube.

Now u can see trough the plane into the cube, but u cant look to the outside from inside the cube.

Add textures to it or Select both objects press ctrl+j to make them into 1 mesh(or keep them seperated).

3

In Blender 2.64 you can use back face culling if you are using GLSL in your viewport, not sure if it was available earlier.

In your 3D viewport, tap N to fold out your side panel. Scroll down to display. Select “Shading: GLSL”, check “Textured Solids” and “Backface culling”

Then you will see through backsides of faces, as in the example below.

backfaceculling.jpg1920×1080 329 KB

4

Hi All, with the informaiton you both provided, I was able to do a little more research and found the solution. I’ll post it below in case anyone else need it.

I used Blender 2.63 for this test.

  1. Add a Cube to your scene.
  2. Go into ‘Edit Mode’.
  3. Hit the N-Key to get the side menu.
  4. Make sure “Faces” is checked under “Mesh Display.”
  5. Under “Display” - “Shading:” make sure “Textured Solid” is checked.
  6. Click CTRL-N to flip all the normals.
  7. In the “Mesh Tools” menu on the left of the application, make sure “Inside” is checked under “Make Normals Consistent:” option.

That’s it, instant see-through.

Thanks for all your help. I’m new to the forum and was glad to see the quick help provided.

Thanks again!
Calixto