public static GLShaderProgram Create(string shaderName)
{
if (sShaderPrograms.TryGetValue(shaderName, out var shaderProgram))
{
return(shaderProgram);
}
string fragmentShaderFilePath = ResourceStore.GetPath(Path.Combine("Shaders", shaderName + ".frag"));
string vertexShaderFilePath = ResourceStore.GetPath(Path.Combine("Shaders", shaderName + ".vert"));
if (!File.Exists(fragmentShaderFilePath) || !File.Exists(vertexShaderFilePath))
{
return(null);
}
int fragmentShader = CreateShader(ShaderType.FragmentShader, File.ReadAllText(fragmentShaderFilePath));
if (fragmentShader == -1)
{
return(null);
}
int vertexShader = CreateShader(ShaderType.VertexShader, File.ReadAllText(vertexShaderFilePath));
if (vertexShader == -1)
{
return(null);
}
int shaderProgramId = GL.CreateProgram();
GL.AttachShader(shaderProgramId, fragmentShader);
GL.AttachShader(shaderProgramId, vertexShader);
GL.LinkProgram(shaderProgramId);
GL.DeleteShader(fragmentShader);
GL.DeleteShader(vertexShader);
shaderProgram = new GLShaderProgram(shaderName, shaderProgramId);
sShaderPrograms.Add(shaderName, shaderProgram);
return(shaderProgram);
}
private static string GetPath(string path) => ResourceStore.GetPath("material_presets\\" + path);
