public RenderableMesh AllocateResourceFor(Mesh3V3N mesh)
{
var vertexBuffer = CreateVertexBuffer(mesh);
var elementBuffer = CreateElementBuffer(mesh);
//var vertexArrayObject = CreateAndSetupVertexArrayObject(vertexBuffer, elementBuffer);
return(new RenderableMesh(vertexBuffer, elementBuffer, null, mesh.Faces.Length, this));
}
private VertexBufferObject <Vertex3V3N> CreateVertexBuffer(Mesh3V3N mesh)
{
var vertexBuffer = _resourceFactory.CreateVertexBufferObject <Vertex3V3N>(BufferTarget.ArrayBuffer);
vertexBuffer.Bind();
vertexBuffer.Data(mesh.Vertices);
vertexBuffer.Unbind();
return(vertexBuffer);
}
private VertexBufferObject <uint> CreateElementBuffer(Mesh3V3N mesh)
{
//Todo pick index type depending on mesh size
if (mesh.Vertices.LongLength > uint.MaxValue)
{
throw new NotImplementedException();
}
var indices = mesh.Faces.SelectMany(x => new[] { (uint)x.V0, (uint)x.V1, (uint)x.V2 }).ToArray();
var elementBuffer = _resourceFactory.CreateVertexBufferObject <uint>(BufferTarget.ElementArrayBuffer, sizeof(uint));
elementBuffer.Bind();
elementBuffer.Data(indices);
elementBuffer.Unbind();
return(elementBuffer);
}
public void Update(Mesh3V3N mesh)
{
Mesh = mesh;
IsDirty = true;
}
public OceanComponent(Mesh3V3N mesh)
{
Mesh = mesh;
}
public void Update(Mesh3V3N mesh)
{
_vertexBuffer.Bind();
_vertexBuffer.Data(mesh.Vertices, BufferUsageHint.StaticDraw);
_vertexBuffer.Unbind();
}