private void OnSceneGUI()
{
LineStream line = target as LineStream;
Transform handleTransform = line.transform;
Quaternion handleRotation = handleTransform.rotation;
for (int i = 0; i < line.points.Count; i++)
{
Vector3 p0 = handleTransform.TransformPoint(line.points[i]);
Vector3 p1 = handleTransform.TransformPoint(line.points[(i + 1) % line.points.Count]);
Handles.color = Color.white;
Handles.DrawLine(p0, p1);
Handles.DoPositionHandle(p0, handleRotation);
Handles.DoPositionHandle(p1, handleRotation);
EditorGUI.BeginChangeCheck();
p0 = Handles.DoPositionHandle(p0, handleRotation);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(line, "Move Point");
EditorUtility.SetDirty(line);
line.points[i] = handleTransform.InverseTransformPoint(p0);
}
EditorGUI.BeginChangeCheck();
}
}
public void BuildMesh()
{
int meshResolution = lineStreams[0].points.Count;
float uvSize = 1f / meshResolution;
Vector3[] vertices = new Vector3[meshResolution * 2];
int[] triangles = new int[meshResolution * 2 * 3];
Vector3[] normals = new Vector3[meshResolution * 2];
Vector2[] uvs = new Vector2[meshResolution * 2];
for (int j = 0; j < lineStreams.Count; j++)
{
LineStream lineStream = lineStreams[j];
for (int i = 0; i < lineStream.points.Count; i++)
{
// Determine how to find the most appropriate point to connect
Vector3 point = lineStream.points[i];
vertices[j * meshResolution + i] = point;
uvs[j * meshResolution + i] = new Vector2(i * uvSize, j);
}
}
for (int i = 0; i < meshResolution; i++)
{
int vtx1 = i;
int vtx2 = (i + 1) % meshResolution;
int vtx3 = meshResolution + i;
int vtx4 = meshResolution + ((i + 1) % meshResolution);
triangles[6 * i] = vtx1;
triangles[6 * i + 1] = vtx3;
triangles[6 * i + 2] = vtx4;
Plane plane = new Plane(
vertices[vtx1],
vertices[vtx3],
vertices[vtx4]
);
normals[2 * i] = plane.normal;
triangles[6 * i + 3] = vtx1;
triangles[6 * i + 4] = vtx4;
triangles[6 * i + 5] = vtx2;
plane = new Plane(
vertices[vtx1],
vertices[vtx4],
vertices[vtx2]
);
normals[2 * i + 1] = plane.normal;
}
Mesh mesh = GetComponent <MeshFilter>().sharedMesh;
mesh.Clear();
mesh.vertices = vertices;
mesh.triangles = triangles;
mesh.normals = normals;
mesh.uv = uvs;
mesh.name = "Custom Mesh";
}
