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Dieses Beispiel

zeigt die Verwendung von Graphikfiles.
Dabei wird Assimp verwendet, die berühmteste Bibliothek für das Laden und das Speichern von Grafikfiles. Enthält ein File Animationen, so kann diese gestartet werden mit Animation. Mit Stop Animation kann gestoppt werden und mit Constinue Animation weiter ausgeführt werden.
          
using System;
using System.Drawing;
using System.Windows.Forms;
using Drawing3d;
using System.Collections.Generic;
using Drawing3d.Windows;

#if LONGDEF
#else
using IndexType = System.UInt16;
#endif
namespace Sample

{
    public partial class Form1 : Form
    {
        MyDevice Device = new MyDevice();
        D3DSceneAnimator Animator = null;
        public Form1()
        {
            InitializeComponent();
            Device.WinControl = this;
            Device.Culling = false;
        }

       

        private void Form1_Load(object sender, EventArgs e)
        {
           
          
            openFileDialog1.InitialDirectory = System.IO.Directory.GetCurrentDirectory();
            string[] _Formats = Drawing3d.Reader.GetSupportedImportFormats();

            string F = "All Graphic files (";
            for (int i = 0; i < _Formats.Length; i++)
            {
                F += "*" + _Formats[i];
                if (i + 1 < _Formats.Length)
                    F += ";";
                else F += ")|";
            }
            for (int i = 0; i < _Formats.Length; i++)
            {
                F += "*" + _Formats[i];
                if (i + 1 < _Formats.Length)
                    F += ";";
            }
            openFileDialog1.Filter = F;
            btnContinue.Left = btnStopanimation.Left= btnAnimate.Left;

        }

        private void btnAnimate_Click(object sender, EventArgs e)
        {
            if (Animator == null)
                Animator = new D3DSceneAnimator(Device, Device.MSC);
            Animator.Start();
            btnAnimate.Visible = false;
            btnStopanimation.Visible = true;
        }

        private void btnStopanimation_Click(object sender, EventArgs e)
        {
            if (Animator != null) Animator.End();
            btnStopanimation.Visible = false;
            btnContinue.Left = btnStopanimation.Left;
            btnContinue.Visible = true;
        }

        private void btnContinue_Click(object sender, EventArgs e)
        {
           
            btnContinue.Left = btnStopanimation.Left;
            btnStopanimation.Visible = true;
            btnContinue.Visible = false;
            if (Animator != null) Animator.Continue();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (Device.MSC.Animations == null) return;
            lbAnimations.Items.Clear();
            if (Device.MSC.HasAnimations)
            {
                
                for (int i = 0; i < Device.MSC.Animations.Count; i++)
                {
                    lbAnimations.Items.Add(Device.MSC.Animations[i].Name + " : " 
                + (Device.MSC.Animations[i].DurationInTicks / Device.MSC.Animations[i].TicksPerSecond).ToString("0.##" + " sec"));
                    
                }
            }
            lbAnimations.Height = Device.MSC.Animations.Count * 14+14; 
            lbAnimations.Show();
        }

        private void lbAnimations_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (Animator == null)
                Animator = new D3DSceneAnimator(Device, Device.MSC);
            Animator.Start(lbAnimations.SelectedIndex);
            lbAnimations .Visible = false;
            btnAnimate.Visible = false;
            btnStopanimation.Visible = false;
            btnContinue.Visible = true;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            Device.ResetShadow();
        }

        private void openFileToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                string FileName = openFileDialog1.FileName;// "C:\\D3d2\\Windows\\Examples\\Assimp\\bin\\Debug\\ArmyPilot\\ArmyPilot.ms3d";
                Text = FileName;
                if (Device.MSC != null) Device.MSC.Dispose();
                Device.DisposeTextures();
                Device.MSC = Reader.FromFile(FileName);
                if (Device.MSC == null) return;
                Box b = Device.MSC.GetMaxBox();

                Device.fitToPage(Device, Device.MSC.GetMaxBox());
                   
                if (Animator != null)
                {
                    Animator.End();
                    Animator = null;
                }
                btnAnimate.Visible = false;
                btnStopanimation.Visible = false;
                btnContinue.Visible = false;
                if (Device.MSC.HasAnimations)
                {
                    btnAnimate.Visible = true;
                    button2.Visible = true;
                   
                }
                else
                {
                    btnAnimate.Visible = false;
                    button2.Visible = false;

                }
                Device.ResetShadow();
            }
        }     
    }

    public class MyDevice:OpenGlDevice
    {
        public Box _Box;
        public Entity Image = new Entity();
        public void fitToPage(OpenGlDevice Device, Box Box)
        {
            _Box = Box;
            double Angle = Device.FieldOfView;
            xyz Center = Box.Origin + Box.Size * (0.5);
            double diag = (Box.Size * (0.5)).length();
            double Max = System.Math.Max(System.Math.Max(Box.Size.X, Box.Size.y), Box.Size.Z);
            double Min = System.Math.Min(System.Math.Min(Box.Size.X, Box.Size.y), Box.Size.Z);
            Device.PixelsPerUnit =Device.ViewPort.Height /  Max/2;
          
            xyz Position = Center + new xyz(0, 0, diag* 3);
            Device.Camera.LookAt(Position, Center, new xyz(0, 1, 0));
            Camera.Anchor = Center;
      
            Camera.NearFar(diag, 3*diag );
            xyz F = Box.Origin + new xyz(2 * diag, diag, 4*Max);
            Device.Lights[0].Position = new xyzwf((float)(F.X), (float)F.y, (float)F.Z,1);
            Device.FieldOfView = Angle;
            Image.Invalid = true;

        }
        public  Scene MSC =null;    
        protected override void OnCreated()
        {
            base.OnCreated();
           
           
             BackColor = Color.Gray;
           
             FieldOfView = Math.PI/6;
         
        }
     
        public override void OnPaint()
        {

            if (MSC != null)
                MSC.Paint(this);
           
           
            base.OnPaint();
        }
    }
}

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