Clipping Issue

[Fwhilton]

I have created a "Pixelink Ride Park" sign that imports fine into to PCoaster
Everything works except for two areas that are clipping. See image (red squares)
The "P", the back and side disappear. And the orange dot's front face is gone.

If I rotate the camera in a certain angle the clipping goes away. But, you have to be right up close and on the side.
Usually in 3D the closer you are the more it clips, but, nor here. its the opposite.

I also tried this on on the grass by itself, same thing.

Is this because of something I did, or is it a PCoaster game issue.

 

[Gohax]

The most common reason is the normals being oriented inwards. The easiest way of verifying this is using the "Face orientation" overlay in Blender https://docs.blender.org/manual/en/latest/editors/3dview/display/overlays.html

Background: Games usually only render the front faces for performance reasons ("backface culling") while Blender by default draws both front and back.

 

[Fwhilton]

I am actually cleaning up my mesh and checking normals as we speak. Thanks

 

[Fwhilton]

Okay, got the clipping to stop. Still need to work on my normals some. I am getting strange reflections off some of my faces that don't belong. And I can see they are normal issues. But, at least the clipping is gone.

 

[Gohax]

Been there, but fixing these is often an art rather than a straightforward process. Sometimes using "Matcap" shading in Blender can help making these issues visible in directly in Blender rather than having to check ingame: https://blender.stackexchange.com/a/161614

 

[kow75]

I use a flat plane, both rectangular and circular with a emissive material on it to check for bad normals. Unlike planco, blender emissive actually gives you environment lighting. Plus you can also Download some nice HDR environment lighting for your scene too. <-- this is handy for creating custom materials with nodes. then bake them into image textures for game use.