static void Create()
{
const int DEG_NUM = 256;
// const int UV_DEG_NUM = 1; //DEG_NUM;
GameObject newGameobject = new GameObject("Circle" + DEG_NUM.ToString());
MeshRenderer meshRenderer = newGameobject.AddComponent <MeshRenderer> ();
meshRenderer.material = new Material(Shader.Find("Diffuse"));
//meshRenderer.sharedMaterial.mainTexture =
// (Texture)AssetDatabase.LoadAssetAtPath("Assets/test.png", typeof(Texture2D));
MeshFilter meshFilter = newGameobject.AddComponent <MeshFilter> ();
meshFilter.mesh = new Mesh();
Mesh mesh = meshFilter.sharedMesh;
mesh.name = "Circle" + DEG_NUM.ToString() + "XY";
Vector3[] verts = new Vector3[DEG_NUM + 1];
Vector2[] uvs = new Vector2[DEG_NUM + 1];
Vector3[] norms = new Vector3[DEG_NUM + 1];
Color[] cols = new Color[DEG_NUM + 1];
verts[0] = new Vector3(0.0f, 0.0f, 0.0f);
uvs[0] = new Vector2(0.5f, 0.0f);
norms[0] = new Vector3(0.0f, 0.0f, 1.0f);
cols[0] = new Color(1.0f, 1.0f, 1.0f, 1.0f);
for (int ii = 0; ii < DEG_NUM; ++ii)
{
float fx = Mathf.Cos(Mathf.PI * 2.0f * ((float)ii / (float)DEG_NUM)) * 0.5f;
float fy = Mathf.Sin(Mathf.PI * 2.0f * ((float)ii / (float)DEG_NUM)) * 0.5f;
verts[ii + 1] = new Vector3(fx, fy, 0.0f);
norms[ii + 1] = new Vector3(0.0f, 0.0f, 1.0f);
cols[ii + 1] = new Color(1.0f, 1.0f, 1.0f, 1.0f);
}
for (int ii = 0; ii < DEG_NUM; ++ii)
{
// float fx = Mathf.Cos(Mathf.PI*2.0f * ((float)ii / (float)UV_DEG_NUM))*0.5f;
// float fy = Mathf.Sin(Mathf.PI*2.0f * ((float)ii / (float)UV_DEG_NUM))*0.5f;
// uvs[ii+1]= new Vector2(fx+0.5f,fy+0.5f);
uvs[ii + 1] = new Vector2(ii % 1 == 0?0.0f:1.0f, 1.0f);
}
int[] tris = new int[DEG_NUM * 3];
for (int ii = 0; ii < DEG_NUM; ++ii)
{
tris[ii * 3 + 0] = 0;
tris[ii * 3 + 1] = (ii < (DEG_NUM - 1)) ? (ii + 2) : 1;
tris[ii * 3 + 2] = ii + 1;
}
mesh.vertices = verts;
mesh.triangles = tris;
mesh.uv = uvs;
mesh.normals = norms;
mesh.colors = cols;
mesh.RecalculateNormals(); // 法線の再計算
mesh.RecalculateBounds(); // バウンディングボリュームの再計算
mesh.Optimize();
AssetDatabase.CreateAsset(mesh, "Assets/" + mesh.name + ".asset");
AssetDatabase.SaveAssets();
}
static void Create()
{
const int DEG_NUM = 256;
const float MAX_RAD = 1.0f;
const float MIN_RAD = 0.5f;
// const int UV_DEG_NUM = 1; //DEG_NUM;
GameObject newGameobject = new GameObject("Ring" + DEG_NUM.ToString() + "XY");
MeshRenderer meshRenderer = newGameobject.AddComponent <MeshRenderer> ();
meshRenderer.material = new Material(Shader.Find("Diffuse"));
//meshRenderer.sharedMaterial.mainTexture =
// (Texture)AssetDatabase.LoadAssetAtPath("Assets/test.png", typeof(Texture2D));
MeshFilter meshFilter = newGameobject.AddComponent <MeshFilter> ();
meshFilter.mesh = new Mesh();
Mesh mesh = meshFilter.sharedMesh;
mesh.name = "Ring" + DEG_NUM.ToString() + "XY";
Vector3[] vertices = new Vector3[(DEG_NUM + 1) * 2];
int[] triangles = new int[(DEG_NUM + 1) * 6];
Vector2[] uv = new Vector2[(DEG_NUM + 1) * 2];
Color[] colors = new Color[(DEG_NUM + 1) * 2];
Vector3[] normals = new Vector3[(DEG_NUM + 1) * 2];
int cnt = 0;
for (int ii = 0; ii <= DEG_NUM; ++ii)
{
float fx = Mathf.Cos(Mathf.PI * 2.0f * ((float)ii / (float)DEG_NUM));
float fy = Mathf.Sin(Mathf.PI * 2.0f * ((float)ii / (float)DEG_NUM));
vertices[cnt * 2 + 0] = new Vector3(fx * MAX_RAD * 0.5f, fy * MAX_RAD * 0.5f, 0.0f);
vertices[cnt * 2 + 1] = new Vector3(fx * MIN_RAD * 0.5f, fy * MIN_RAD * 0.5f, 0.0f);
triangles[cnt * 6 + 0] = cnt * 2 + 0;
triangles[cnt * 6 + 1] = cnt * 2 + 1;
triangles[cnt * 6 + 2] = (ii < (DEG_NUM)) ? (cnt * 2 + 2) : 0;
triangles[cnt * 6 + 3] = cnt * 2 + 0;
triangles[cnt * 6 + 4] = (ii > 0) ? (cnt * 2 - 1) : 0;
triangles[cnt * 6 + 5] = cnt * 2 + 1;
// uv[cnt*2+0] = new Vector2(vertices[cnt*2+0].x+0.5f,vertices[cnt*2+0].y+0.5f);
// uv[cnt*2+1] = new Vector2(vertices[cnt*2+1].x+0.5f,vertices[cnt*2+1].y+0.5f);
uv[cnt * 2 + 0] = new Vector2((float)ii / (float)DEG_NUM, 0.0f);
uv[cnt * 2 + 1] = new Vector2((float)ii / (float)DEG_NUM, 1.0f);
colors[cnt * 2 + 0] = colors[cnt * 2 + 1] = new Color(0.5f, 0.5f, 0.5f, 1.0f);
cnt++;
}
mesh.vertices = vertices;
mesh.triangles = triangles;
mesh.uv = uv;
mesh.colors = colors;
mesh.normals = normals;
mesh.RecalculateNormals();
mesh.RecalculateBounds();
mesh.Optimize();
mesh.SetIndices(mesh.GetIndices(0), MeshTopology.Triangles, 0);
AssetDatabase.CreateAsset(mesh, "Assets/" + mesh.name + ".asset");
AssetDatabase.SaveAssets();
}