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@the6th the6th/OpMeshGenerator.cs
Last active Apr 28, 2017

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using UnityEngine;
using System.Collections;
#if UNITY_EDITOR
using UnityEditor;
#endif
public class OpMeshGenerator : MonoBehaviour
{
public int divisionX = 200;
public int divisionY = 200;
public float sizeX = 5f;
public float sizeY = 5f;
public float opCupCoef = 9.6f;
public string saveAsAnAssetInPath = "Assets/OpMesh.asset";
Mesh mesh;
Vector3 Op(float x, float y)
{
float z = (
opCupCoef * Mathf.Exp(
-(
Mathf.Pow(2f / 3f * Mathf.Abs(x) - 1f, 2f)
+ Mathf.Pow(2f / 3f * y, 2f)
)
- 1f / 3f * Mathf.Pow(2f / 3f * y + .5f, 3f)
)
+ 2f / 3f * Mathf.Exp(
-Mathf.Pow(2.818f, 11f) * Mathf.Pow(
Mathf.Pow(Mathf.Abs(2f / 3f * x) - 1f, 2f)
+ Mathf.Pow(2f / 3f * y, 2f)
, 2f)
)
- Mathf.Pow(2f / 3f * x, 4f)
) / 8f;
return new Vector3(x, y, -z);
}
Mesh CreateMesh()
{
int countX = divisionX + 1;
int countY = divisionY + 1;
var vertices = new Vector3[countX * countY];
var uv = new Vector2[countX * countY];
int k = 0;
for (int i = 0; i <= divisionY; i++)
{
for (int j = 0; j <= divisionX; j++)
{
float u = (float)j / divisionX;
float v = (float)i / divisionY;
float x = (u - .5f) * sizeX;
float y = (v - .5f) * sizeY;
vertices[k] = Op(x, y);
uv[k++].Set(u, v);
}
}
var triangles = new int[6 * divisionX * divisionY];
int l = 0, kTL = 0, kTR = 1, kBL = countX, kBR = countX + 1;
for (int i = 0; i < divisionY; i++)
{
for (int j = 0; j < divisionX; j++)
{
triangles[l++] = kTL;
triangles[l++] = kBL++;
triangles[l++] = kBR;
triangles[l++] = kTR++;
triangles[l++] = kTL++;
triangles[l++] = kBR++;
}
kTL++; kTR++; kBL++; kBR++;
}
if(mesh != null)
mesh.Clear();
mesh.name = "OpMesh";
mesh.vertices = vertices;
mesh.uv = uv;
mesh.triangles = triangles;
return mesh;
}
void Start()
{
mesh = new Mesh();
mesh = CreateMesh();
/*
//起動時にMeshをAssetに保存する
if (saveAsAnAssetInPath != "")
{
AssetDatabase.CreateAsset(mesh, saveAsAnAssetInPath);
AssetDatabase.SaveAssets();
}
*/
// ここから削除可 ↓↓↓↓↓
var filter = GetComponent<MeshFilter>();
if (filter == null) filter = gameObject.AddComponent<MeshFilter>();
filter.sharedMesh = mesh;
var renderer = GetComponent<MeshRenderer>();
if (renderer == null)
{
renderer = gameObject.AddComponent<MeshRenderer>();
}
if (renderer.material == null)
{
renderer.material = Resources.Load("Default-Material", typeof(Material)) as Material;
}
CreateLight("Key Light", 60f, 100f, 1f, 1f, 1f);
CreateLight("Fill Light", 30f, -100f, 1f, .8f, .6f);
// ここまで削除可 ↑↑↑↑↑
}
private void Update()
{
mesh = CreateMesh();
}
// ここから削除可 ↓↓↓↓↓
void CreateLight(string name, float rx, float ry, float r, float g, float b)
{
var obj = new GameObject();
obj.name = name;
var light = obj.AddComponent<Light>();
var euler = new Vector3(rx, ry, 0f);
var pos = transform.position + Op(0f, 0f);
light.type = LightType.Directional;
light.transform.localRotation = Quaternion.Euler(euler);
light.transform.position = pos + Quaternion.Euler(-euler) * Vector3.forward * 10f;
light.color = new Color(r, g, b);
light.intensity = 1f;
light.bounceIntensity = 0f;
light.shadows = LightShadows.Soft;
}
// ここまで削除可 ↑↑↑↑↑
}
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