private void Start()
{
if (m_Generator == null)
{
m_Generator = new TezPlanetGenerator();
}
this.generate();
m_Generator.createPlanet(planetData);
this.createColor();
}
public void createMesh(TezPlanetGenerator generator)
{
///=================
/// *-*-*-*
/// |\|\|\|
/// *-*-*-*
/// |\|\|\|
/// *-*-*-*
/// |\|\|\|
/// *-*-*-*
///
/// Resolution = 4
/// SmallRect = (4-1)^2 = 9
/// Triangle = SmallRect * 2 = 18
/// Index = Triangle * 3 = 36
/// =================
/// 0-1-2-3
/// *-*-*-*
/// |\|\|\|
/// *-*-*-*
/// 4-5-6-7
///
/// Index1 = 0,5,4 = i,i+Resolution + 1,i+Resolution
/// Index2 = 0,1,5 = i,i+1,i+Resolution + 1
/// 注意最后一排/列的越界处理
/// =================
Vector3[] vectices = new Vector3[m_Resolution * m_Resolution];
int[] triangles = new int[(m_Resolution - 1) * (m_Resolution - 1) * 2 * 3];
int index = 0;
for (int y = 0; y < m_Resolution; y++)
{
for (int x = 0; x < m_Resolution; x++)
{
int i = x + y * m_Resolution;
Vector2 percent = new Vector2(x, y) / (m_Resolution - 1);
Vector3 pointOnUnitCube = m_LocalUp + (percent.x - 0.5f) * 2 * m_AxisA + (percent.y - 0.5f) * 2 * m_AxisB;
Vector3 pointOnUnitSphere = pointOnUnitCube.normalized;
vectices[i] = generator.calculatePoint(pointOnUnitSphere);
if (x != m_Resolution - 1 && y != m_Resolution - 1)
{
triangles[index] = i;
triangles[index + 1] = i + m_Resolution + 1;
triangles[index + 2] = i + m_Resolution;
triangles[index + 3] = i;
triangles[index + 4] = i + 1;
triangles[index + 5] = i + m_Resolution + 1;
index += 6;
}
}
}
m_Mesh.Clear();
m_Mesh.vertices = vectices;
m_Mesh.triangles = triangles;
m_Mesh.RecalculateNormals();
}
