Hello,
I'm already sure I'm doing something stupidly wrong, but this is extremely frustrating since I cannot locate the issue.
Basically I'm trying to draw ANYTHING using this Draw() method:
public const float lim = 1000;
private void Draw(object sender, OpenGLRoutedEventArgs args)
{
var gl = args.OpenGL;
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
gl.LoadIdentity();
gl.LineWidth(10.0f);
gl.PointSize(2.0f);
gl.Color(1, 1, 1);
// y axis
gl.Begin(BeginMode.Lines);
gl.Vertex(-lim, 0);
gl.Vertex(lim, 0);
gl.End();
// x axis
gl.Begin(BeginMode.Lines);
gl.Vertex(0, -lim);
gl.Vertex(0, lim);
gl.End();
for (int i = 0; i < 500; i++)
{
gl.Begin(BeginMode.TriangleFan);
var Segments = 50;
var radius = 1000;
var Position = new Vector2(i, i);
for (var a = 0; a < Segments; a++)
{
float theta = 2f * MathF.PI * a / Segments;
float x = radius * MathF.Sin(theta);
float y = radius * MathF.Cos(theta);
gl.Vertex(Position.X + x, Position.Y + y);
}
gl.End();
}
gl.Flush();
}
But I'm only ever getting a black screen (with the FPS counter working fine).
I've tried comparing my code to this sample, but I really cannot find the problem.
As you can see from the code, I have already made desperate, frustrated attempts to draw large cirlces ANYWHERE, with no success whatsoever.
What am I missing?
Hello, I'm already sure I'm doing something stupidly wrong, but this is extremely frustrating since I cannot locate the issue.
Basically I'm trying to draw ANYTHING using this
Draw()
method:But I'm only ever getting a black screen (with the FPS counter working fine). I've tried comparing my code to this sample, but I really cannot find the problem.
As you can see from the code, I have already made desperate, frustrated attempts to draw large cirlces ANYWHERE, with no success whatsoever. What am I missing?