/// <summary>
/// Load a shader and check whether it works.
/// </summary>
/// <param name="name">Name of the shader.</param>
public static void Add(string name)
{
// Load the shader
var program = new ShaderProgram(name);
var files = FileManager.GetGraphShaders(name);
foreach (var file in files)
{
program.AddShader(file.EndsWith(".frag") ? ShaderType.FragmentShader : ShaderType.VertexShader, file);
}
program.Link();
// Check for any GL errors.
Utils.CheckError("AddShader " + name);
// After shader creation, create the corresponding manager
UniformManager manager;
try
{
manager = new UniformManager(name, program.ID);
}
catch (System.Exception e)
{
Log.WriteException(e);
Log.WriteInfo($"could not initialize shader {name}. See shader info for details.");
return;
}
// Add both the the lists
shaders.Add(name, program);
managers.Add(program.ID, manager);
}
/// <summary>
/// Change the shader.
/// </summary>
/// <param name="name">Name of the shader.</param>
/// <param name="default">Sets the default shader to this shader.</param>
public static void ChangeShader(string name, bool @default = false)
{
var newShader = ShaderManager.Fetch(name);
if (newShader > 0)
{
currentShader = newShader;
currentManager = ShaderManager.FetchManager(currentShader);
if (@default)
{
DefaultShader = currentShader;
DefaultManager = currentManager;
}
}
else
{
Log.WriteInfo($"Failed to fetch shader {name}.");
if (@default)
{
throw new DefaultShaderException();
}
}
}
