[Test]
public void CircleEmitterGivesCylinderWithDifferingZ()
{
    var emitterData = GetEmitterData(logo, 256, 3);
    emitterData.PositionType = ParticleEmitterPositionType.CircleAroundCenter;
    emitterData.StartPosition = new RangeGraph<Vector3D>(new Vector3D(-0.1f, -0.1f, 0.0f),
        new Vector3D(0.1f, 0.1f, 0.0f));
    var emitter = new ParticleEmitter(emitterData, Vector3D.Zero);
    emitter.Position = -0.2f * Vector3D.UnitZ;
    emitter.Rotation = Quaternion.FromAxisAngle(Vector3D.UnitY, -10);
}

[Test]
public void CircleEmitterGivesCylinderWithDifferingZ()
{
    var emitterData = GetEmitterData(logo, 256, 3);
    emitterData.PositionType = ParticleEmitterPositionType.CircleAroundCenter;
    emitterData.StartPosition = new RangeGraph<Vector3D>(new Vector3D(-0.1f, -0.1f, 0.0f),
        new Vector3D(0.1f, 0.1f, 0.0f));
    var emitter = new ParticleEmitter(emitterData, Vector3D.Zero);
    emitter.Position = -0.2f * Vector3D.UnitZ;
    emitter.Rotation = Quaternion.FromAxisAngle(Vector3D.UnitY, -10);
}