private static unsafe void Load()
{
_gl ??= GL.GetApi();
var vertShader = _gl.CreateShader(GLEnum.VertexShader);
var fragShader = _gl.CreateShader(GLEnum.FragmentShader);
var vertLen = VertexShader.Length;
_gl.ShaderSource(vertShader, 1, SilkMarshal.ToPointer(new [] { VertexShader }), &vertLen);
var fragLen = FragmentShader.Length;
_gl.ShaderSource(fragShader, 1, SilkMarshal.ToPointer(new [] { FragmentShader }), &fragLen);
_gl.CompileShader(vertShader);
_gl.CompileShader(fragShader);
_shader = _gl.CreateProgram();
_gl.AttachShader(_shader, vertShader);
_gl.AttachShader(_shader, fragShader);
_gl.LinkProgram(_shader);
_gl.DetachShader(_shader, vertShader);
_gl.DetachShader(_shader, fragShader);
_gl.DeleteShader(fragShader);
_gl.DeleteShader(vertShader);
_gl.ClearColor(0.2f, 0.3f, 0.3f, 1.0f);
_vertexBufferObject = _gl.GenBuffer();
_gl.BindBuffer(GLEnum.ArrayBuffer, _vertexBufferObject);
fixed(void *vertices = _vertices)
{
_gl.BufferData(GLEnum.ArrayBuffer, (uint)_vertices.Length * sizeof(float), vertices, GLEnum.StaticDraw);
}
_vertexArrayObject = _gl.GenVertexArray();
_gl.BindVertexArray(_vertexArrayObject);
var attrib = 0;
_gl.VertexAttribPointer(0, 3, GLEnum.Float, false, 3 * sizeof(float), &attrib);
_gl.EnableVertexAttribArray(0);
_gl.BindBuffer(GLEnum.ArrayBuffer, _vertexBufferObject);
Console.WriteLine("done load");
}
