private void AddData(OpenGL gl)
{
NTMBufferGroup group = new NTMBufferGroup(gl);
var verts = MyTrefoilKnot.Vertices.SelectMany(x => x.to_array()).ToArray();
var normals = MyTrefoilKnot.Normals.SelectMany(x => x.to_array()).ToArray();
group.BufferData(gl, MyTrefoilKnot.Indices, verts, normals,
new Material[] { new Material(new ColorF(150, 150, 50, 50), new ColorF(255, 10, 100, 10), new ColorF(255, 225, 225, 225), null, 100f) });
group.PrepareVAO(gl, NtmProgram);
NtmProgram.AddBufferGroup(group);
NTMBufferGroup groupCube = new NTMBufferGroup(gl);
var vertsCube = FlatShadedCube.Vertices.SelectMany(x => x.to_array()).ToArray();
var normalsCube = FlatShadedCube.Normals.SelectMany(x => x.to_array()).ToArray();
groupCube.BufferData(gl, FlatShadedCube.Indices, vertsCube, normalsCube,
new Material[]
{
new Material(new ColorF(0.5f, 0.3f, 1, 0), new ColorF(1f, 1f, 0.5f, 0), new ColorF(1f, 1, 0, 1), null, 100f)
});
groupCube.PrepareVAO(gl, NtmProgram);
NtmProgram.AddBufferGroup(groupCube);
}
public void Draw(object sender, OpenGLEventArgs args)
{
GL.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
// Add gradient background.
SetVerticalGradientBackground(GL, new ColorF(255, 146, 134, 188), new ColorF(1f, 0, 1, 0));
NtmProgram.BindAll(GL);
}
