public override void Draw()
{
view.Bind();
var modelview = Matrix4.LookAt(Vector3.Zero, Vector3.UnitZ, Vector3.UnitY);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadMatrix(ref modelview);
GL.Disable(EnableCap.Texture2D);
{
var screenSize = Window.Instance.GameScreenSize;
var x = screenSize.X / 2 - Rect.Position.X - Rect.Size.X / 2;
var y = screenSize.Y / 2 - Rect.Position.Y - Rect.Size.Y / 2;
GL.Translate(x, y, 0);
}
var w = Rect.Size.X / 2;
var h = Rect.Size.Y / 2;
var z = 1;
Color.SetGLColor();
GL.Begin(BeginMode.Quads);
//GL.Begin(BeginMode.Lines);
GL.Vertex3(-w, h, z);
GL.Vertex3(-w, -h, z);
GL.Vertex3(w, -h, z);
GL.Vertex3(w, h, z);
GL.End();
}
public override void Draw()
{
view.Bind();
var modelview = Matrix4.LookAt(Vector3.Zero, Vector3.UnitZ, Vector3.UnitY);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadMatrix(ref modelview);
GL.Enable(EnableCap.Texture2D);
GL.Enable(EnableCap.Blend);
//GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
//GL.BlendFunc(BlendingFactor.Src1Alpha, BlendingFactor.OneMinusSrcAlpha);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
{
var screenSize = Window.Instance.GameScreenSize;
var x = screenSize.X / 2 - Rect.Position.X - Rect.Size.X / 2;
var y = screenSize.Y / 2 - Rect.Position.Y - Rect.Size.Y / 2;
GL.Translate(x, y, 0);
}
var w = Rect.Size.X / 2;
var h = Rect.Size.Y / 2;
var z = 1;
Color.SetGLColor();
texture.Bind();
//GL.Begin(BeginMode.Quads); // TriangleStrip
GL.Begin(BeginMode.TriangleStrip); //
//GL.Begin(BeginMode.Lines);
//GL.Vertex3(-w, h, z);
//GL.Vertex3(-w, -h, z);
//GL.Vertex3(w, -h, z);
//GL.Vertex3(w, h, z);
var u1 = 0.0f;
var v1 = 0.0f;
var u2 = 1.0f;
var v2 = 1.0f;
GL.TexCoord2(u1, v1); GL.Vertex3(+w, +h, z);
GL.TexCoord2(u1, v2); GL.Vertex3(+w, -h, z);
GL.TexCoord2(u2, v1); GL.Vertex3(-w, +h, z);
GL.TexCoord2(u2, v2); GL.Vertex3(-w, -h, z);
GL.End();
}
