public ShaderProgram AddFragmentShaderOutput(int colourIndex, string name)
{
if (!string.IsNullOrWhiteSpace(name))
{
if (FragDataLocation.ContainsKey(colourIndex))
{
FragDataLocation[colourIndex] = name;
}
else
{
FragDataLocation.Add(colourIndex, name);
}
}
return(this);
}
public ShaderProgram(ShaderProgram cloneFrom)
{
if (cloneFrom == null)
{
throw new ArgumentNullException(nameof(cloneFrom));
}
if (cloneFrom.ShaderSourceOrFilenames.Count == 0)
{
throw new InvalidOperationException($"ShaderProgram: cannot clone from {cloneFrom.Name} due to insufficient shader information");
}
Name = cloneFrom.Name;
foreach (var v in cloneFrom.VariableLocations)
{
VariableLocations.Add(v.Key, v.Value);
}
foreach (var f in cloneFrom.FragDataLocation)
{
FragDataLocation.Add(f.Key, f.Value);
}
UsingFilenames = cloneFrom.UsingFilenames;
foreach (var s in cloneFrom.ShaderSourceOrFilenames)
{
ShaderSourceOrFilenames.Add(s);
}
if (UsingFilenames)
{
InitFromFiles();
}
else
{
InitFromSource();
}
}
public ShaderProgram SetFragmentOutputs(params string[] fragmentOutputs)
{
FragDataLocation.Clear();
if (fragmentOutputs == null || fragmentOutputs.Length == 0)
{
return(this);
}
// if we've only been passed a single string and it contains commas, then split it.
if (fragmentOutputs.Length == 1 && fragmentOutputs[0].Contains(","))
{
return(SetVariables(fragmentOutputs[0].Split(',')));
}
for (int i = 0; i < fragmentOutputs.Length; i++)
{
AddFragmentShaderOutput(i, fragmentOutputs[i]);
}
return(this);
}
