private void AddData(OpenGL gl)
{
NMHTBufferGroup group = new NMHTBufferGroup(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(255, 150, 50, 50), new ColorF(255, 10, 100, 10), new ColorF(255, 225, 225, 225), null, 100f) });
group.PrepareNMVAO(gl, NmProgram);
group.PrepareHTVAO(gl, HtProgram);
NmProgram.AddBufferGroup(group);
HtProgram.AddBufferGroup(group);
NMHTBufferGroup groupCube = new NMHTBufferGroup(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(1f, 0.3f, 1, 0), new ColorF(1f, 1f, 0.5f, 0), new ColorF(1f, 1, 0, 1), null, 100f),
});
groupCube.PrepareNMVAO(gl, NmProgram);
groupCube.PrepareHTVAO(gl, HtProgram);
NmProgram.AddBufferGroup(groupCube);
HtProgram.AddBufferGroup(groupCube);
}
public void Draw(object sender, OpenGLEventArgs args)
{
var scene = sender as OpenGLControlJOG;
if (NmProgram.ChangedUniforms.Count == 0) // Prepare HitTest scene
{
// Prevent the image from updating, so that the hittest id's won't be visible to the user.
if (HtProgram.ChangedUniforms.Count != 0)
{
scene.RefreshImgSource = false;
GL.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
HtProgram.BindAll(GL);
}
else
{
// Prevent blitting the image when nothing changed.
scene.BlitImage = false;
}
}
else // Update the visual scene.
{
if (!scene.RefreshImgSource)
{
scene.RefreshImgSource = true;
}
if (!scene.BlitImage)
{
scene.BlitImage = true;
}
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));
NmProgram.BindAll(GL);
}
}