public ProgramAttribute VertexAttribute(string name)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
ProgramAttribute attrib = _attributes.FirstOrDefault(a => a.Name == name);
if (attrib == null)
{
throw new ArgumentException(string.Format("Attribute not found: {0}", name), "name");
}
return(attrib);
}
internal void MapAttributes()
{
int count = 0;
GL.GetProgram(_id, ProgramParameter.ActiveAttributes, out count);
_attributes.Clear();
for (int i = 0; i < count; i++)
{
int size;
ActiveAttribType type;
string name = GL.GetActiveAttrib(_id, i, out size, out type);
int slot = GL.GetAttribLocation(_id, name);
ProgramAttribute attribute = new ProgramAttribute(name, slot, size, type);
_attributes.Add(attribute);
}
}
