Get Rid of Triangle Lines in a mesh  via C#

There are a few ways you can try to get rid of lines on the edges of triangles in a mesh in Unity. Here are a few options you can try:

1. Smooth Normals: One way to get rid of the lines on the edges of triangles is to use smooth normals. This will cause the lighting on the surface of the mesh to be interpolated across the surface, which can help to smooth out the lines. To set smooth normals for a mesh in Unity, you can use the following code:

Mesh mesh = GetComponent<MeshFilter>().mesh;

mesh.RecalculateNormals();

2. Increase Triangle Count: Another way to get rid of the lines on the edges of triangles is to increase the number of triangles in the mesh. This can help to smooth out the surface of the mesh, which can reduce the visibility of the lines. You can increase the triangle count in Unity by using the Subdivide function of the Mesh class, like this:

Mesh mesh = GetComponent<MeshFilter>().mesh;

mesh.subdivide(numSubdivisions);

3. Use Anti-Aliasing: You can also try using anti-aliasing to smooth out the lines on the edges of triangles. This can be done by enabling anti-aliasing in the Quality Settings of your Unity project. To do this, go to Edit > Project Settings > Quality and set the Anti-Aliasing setting to 2x, 4x, or 8x.

4. Use Shaders: Another option is to use shaders to smooth out the lines on the edges of triangles. There are several shaders available that can help to smooth out the surface of a mesh, such as the Smooth Normals shader or the Surface Shader. You can use one of these shaders by creating a new material in Unity and selecting the desired shader from the Shader dropdown menu.

I hope these suggestions help! Let me know if you have any questions or if you need further assistance.