public override void Init()
{
base.Init();
var verts = new [] {
new VertexPositionTexture {
Position = new Vector3(-0.5f, -0.5f, 0.0f),
TextureCoordinate = new Vector2(0.0f, 1.0f)
},
new VertexPositionTexture {
Position = new Vector3(-0.5f, 0.5f, 0.0f),
TextureCoordinate = new Vector2(0.0f, 0.0f)
},
new VertexPositionTexture {
Position = new Vector3(0.5f, 0.5f, 0.0f),
TextureCoordinate = new Vector2(1.0f, 0.0f)
},
new VertexPositionTexture {
Position = new Vector3(0.5f, -0.5f, 0.0f),
TextureCoordinate = new Vector2(1.0f, 1.0f)
},
};
var indices = new short[6] {
0, 2, 1, 0, 3, 2
};
var device = Game1.Inst.GraphicsDevice;
mBillboardVbo = new VertexBuffer(device,
VertexPositionTexture.VertexDeclaration,
verts.Length,
BufferUsage.None);
mBillboardVbo.SetData <VertexPositionTexture>(verts);
mBillboardIbo = new IndexBuffer(device,
typeof(short),
indices.Length,
BufferUsage.None);
mBillboardIbo.SetData <short>(indices);
mBillboardMat = new BillboardMaterial();
}
public Billboard(string filename, float w, float h, Vector4 col)
: base()
{
Name = "Billboard";
color = col;
Size = new Vector3(w, h, 0.01f);
float w2 = w * 0.5f;
float h2 = h * 0.5f;
positionVboData = new Vector3[] {
new Vector3(-w2, -h2, 0),
new Vector3(w2, -h2, 0),
new Vector3(w2, h2, 0),
new Vector3(-w2, h2, 0)
};
texCoords = new Vector2[] {
new Vector2(0, 1),
new Vector2(1, 1),
new Vector2(1, 0),
new Vector2(0, 0)
};
indicesVboData = new int[] { 0, 1, 2, 3 };
material = new BillboardMaterial(filename);
if (!material.Ready)
{
return;
}
createVBOs();
createVAOs();
ready = true;
}
private void CreateBillboardMaterial(string name, Texture2D texture)
{
var mat = new BillboardMaterial(this, name);
mat.Texture = texture;
}