static SkyComponent()
{
// 円周方向の分割数
const int Slices = 16;
// Y方向の分割数
const int Stacks = 8;
List <Vector3> positions = new List <Vector3>();
for (int i = 0; i < Stacks + 1; i++)
{
float y = 1.0f - 2.0f * (float)i / Stacks;
float r = sqrt(1 - y * y);
for (int j = 0; j < Slices + 1; j++)
{
float t = (float)j / Slices * 3.14159f * 2;
float x = r * cos(t);
float z = r * sin(t);
Vector3 v = new Vector3(x / 2, y / 2, z / 2);
positions.Add(v);
}
}
VertexBuffer.Create(positions.ToArray(), Accessibility.None);
List <int> indices = new List <int>();
for (int i = 0; i < Stacks; i++)
{
for (int j = 0; j < Slices; j++)
{
int i0 = (Slices + 1) * i + j;
int i1 = i0 + 1;
int i2 = (Slices + 1) * (i + 1) + j;
int i3 = i2 + 1;
indices.Add(i0);
indices.Add(i2);
indices.Add(i1);
indices.Add(i1);
indices.Add(i2);
indices.Add(i3);
}
}
IndexBuffer.Create(indices.ToArray(), Accessibility.None);
Texture.CreateCubeMap("res/texture/skybox.dds", Accessibility.None);
VertexShader.CreateFromFile("res/shader/SkyVertexShader.hlsl");
PixelShader.CreateFromFile("res/shader/SkyPixelShader.hlsl");
VertexLayout.Create(new VertexElement[]
{
new VertexElement("POSITION", 0, Format.Float3, 0, 0, VertexElement.Classification.VertexData, 0),
}, VertexShader);
}