public VertexStreamRL VertexStreamRL(IProgram program)
{
if (vertexStreamsRL.ContainsKey(program))
{
return(vertexStreamsRL[program]);
}
var bindings = vertexStreamsRL[program] = new VertexStreamRL();
var mappings = program.AttributeMappings;
mappings.BindAttributes(bindings, program, vertexFormat);
return(bindings);
}
public void BindAttributes(VertexStreamRL vertexStream, IProgram program, VertexFormat vertexFormat)
{
foreach (var mapping in mappings)
{
var programAttribute = program.Attribute(mapping.Name);
if (programAttribute == null)
{
continue;
}
var vertexFormatAttribute = vertexFormat.FindAttribute(mapping.SrcUsage, mapping.SrcIndex);
if (vertexFormatAttribute == null)
{
continue;
}
vertexStream.Add(
mapping,
vertexFormatAttribute,
vertexFormat.Stride,
programAttribute.Slot
);
}
}
