/// <summary>
/// Writes attribute data from specified vertex into a float buffer. This method can be called only
/// if the type of attribute is float-based.
/// </summary>
/// <param name="vertex">Vertex to load the data from.</param>
/// <param name="buffer">Buffer to write data to.</param>
/// <param name="where">Where in buffer to write the data.</param>
public void WriteToFloatBuffer(Vertex vertex, float[] buffer, int where)
{
if (Type.BaseType != GLBaseType.Float)
{
throw new Exception("This attribute is not float based!");
}
GLVariable vertexVar = vertex.Attributes[Id];
switch (Type.ComponentCount)
{
case GLComponentCount.One:
{
Float variable = (Float)vertexVar;
buffer[where] = variable.Value;
} break;
case GLComponentCount.Two:
{
Vec2f variable = (Vec2f)vertexVar;
buffer[where] = variable.X;
buffer[where + 1] = variable.Y;
} break;
case GLComponentCount.Three:
{
Vec3f variable = (Vec3f)vertexVar;
buffer[where] = variable.X;
buffer[where + 1] = variable.Y;
buffer[where + 2] = variable.Z;
} break;
case GLComponentCount.Four:
{
Vec4f variable = (Vec4f)vertexVar;
buffer[where] = variable.X;
buffer[where + 1] = variable.Y;
buffer[where + 2] = variable.Z;
buffer[where + 3] = variable.W;
} break;
default:
throw new Exception("This code should be unreachable!");
}
}
/// <summary>
/// Makes Uniform from a specified GLSL type.
/// </summary>
/// <param name="type">GLSL type of the uniform. It should be one of the supported ones.</param>
/// <param name="name">Name of the new uniform.</param>
/// <returns>The newly created uniform.</returns>
public static Uniform Make(GLType type, string name)
{
GLVariable variable = VariableMaker.Make(type);
return(new Uniform(name, variable));
}
public Uniform(string name, GLVariable variable)
{
Name = name;
Variable = variable;
}
