public void Apply(IVertexArrayAdapter adapter, IShaderProgram shaderProgram)
{
if (adapter == null)
{
throw new ArgumentNullException(nameof(adapter));
}
if (shaderProgram == null)
{
throw new ArgumentNullException(nameof(shaderProgram));
}
shaderProgram.ThrowIfDisposed();
foreach (var element in Elements)
{
/* Let ShaderAttributeNotFoundException bubble up
* If we can't find an attribute in the shaderProgram that matches
* the usages defined in the given vertex declaration. */
int location = shaderProgram.GetAttributeLocation(element.Usage);
adapter.EnableVertexAttribArray(location);
//TODO: cache these values
adapter.VertexAttribPointer(
location,
element.NumberOfComponents,
element.PointerType,
element.Normalised,
Stride,
element.Offset
);
}
}