koobas.hobune.stream
How to make mesh having array of vertices?
How to make mesh having array of vertices positions (and faces) so normals of faces will face outside (i.e. mesh will be visible)? I need it to my CSG alghorithm.
//edit: To be more specific, here what my structures are:
Vector3 faces[20][3]
First array index is face number, second index is face's vertex number. Vertices are stored as their positions in 3d space.
If I understand your requirements, this should work:
Vector3[] vertices = new Vector3[faces.Length*3];
int[] tris = new Vector3[faces.Length*3];
for (int i = 0; i < faces.Length;)
{
for (int j = 0; j < faces[i].Length; j++)
{
vertices[i*3 + j] = nvaces[i,j];
tris[i*3 + j] = i*3 + j;
}
}
mesh.vertices = vertices;
mesh.triangles = tris;
This assumes that your faces always have exactly 3 vertices.
What CSG algorithms are you using out of curiosity? I have been been interested from afar in CSG for a while now
No, that's not it. I need a way to make face normals facing outside of mesh, so it will be visible and not turned outside in. //edit: As for Algorithm, I'm making my own as all available are too slow for my purposes.
