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//
// Hello3D.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2013-2017 Jean-Philippe Bruyère
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using OpenTK;
using OpenTK.Graphics.OpenGL;
using Crow;
namespace Tests
{
class Hello3D : CrowWindow
{
[STAThread]
static void Main ()
{
Hello3D win = new Hello3D ();
win.Run (30);
}
public Hello3D ()
: base(800, 600,"Crow Test with OpenTK")
{
}
public Matrix4 modelview, projection;
public int[] viewport = new int[4];
public Vector3 vEyeTarget = new Vector3(0f, 0f, 0f);
public Vector3 vEye;
public Vector3 vLookInit = Vector3.Normalize(new Vector3(-1.0f, -1.0f, 1.0f));
public Vector3 vLook; // Camera vLook Vector
public float zNear = 0.001f, zFar = 300.0f;
public float fovY = (float)Math.PI / 4;
public float eyeDist = 10.2f;
public float viewZangle, viewXangle;
public const float MoveSpeed = 0.02f;
public const float RotationSpeed = 0.005f;
public const float ZoomSpeed = 0.22f;
vaoMesh cube;
Texture texture;
ProjectiveIFaceControler iface3D;
void initGL(){
GL.Enable (EnableCap.CullFace);
GL.Enable (EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
cube = vaoMesh.CreateCube ();
texture = new Texture ("image/textest.png");
}
protected override void OnLoad (EventArgs e)
{
base.OnLoad (e);
CrowMouseMove += HelloCube_MouseMove;
CrowMouseWheel += Hello3D_MouseWheelChanged;
iface3D = Add3DInterface (800, 800,
Matrix4.CreateScale (6f) *
Matrix4.CreateRotationX (MathHelper.PiOver2) *
Matrix4.CreateTranslation (Vector3.UnitY * -1.1f));
Load (@"Interfaces/Divers/0.crow").DataSource = this;
initGL ();
shader.Enable ();
}
protected override void OnResize (EventArgs e)
{
base.OnResize (e);
UpdateViewMatrix ();
}
public override void OnRender (FrameEventArgs e)
{
base.OnRender (e);
shader.SetMVP(modelview * projection);
GL.BindTexture (TextureTarget.Texture2D, texture);
cube.Render (BeginMode.Triangles);
GL.BindTexture (TextureTarget.Texture2D, 0);
}
public void UpdateViewMatrix()
{
Rectangle r = this.ClientRectangle;
GL.Viewport( r.X, r.Y, r.Width, r.Height);
projection = Matrix4.CreatePerspectiveFieldOfView (fovY, r.Width / (float)r.Height, zNear, zFar);
vLook = vLookInit.Transform(
Matrix4.CreateRotationX (viewXangle)*
Matrix4.CreateRotationZ (viewZangle));
vLook.Normalize();
vEye = vEyeTarget + vLook * eyeDist;
modelview = Matrix4.LookAt(vEye, vEyeTarget, Vector3.UnitZ);
GL.GetInteger(GetPName.Viewport, viewport);
iface3D.UpdateView (projection, modelview, viewport, vEye);
}
void HelloCube_MouseMove(object sender, OpenTK.Input.MouseMoveEventArgs otk_e)
{
if (otk_e.Mouse.MiddleButton == OpenTK.Input.ButtonState.Pressed) {
viewZangle -= (float)otk_e.XDelta * RotationSpeed;
viewXangle -= (float)otk_e.YDelta * RotationSpeed;
UpdateViewMatrix ();
} else if (otk_e.Mouse.LeftButton == OpenTK.Input.ButtonState.Pressed) {
return;
} else if (otk_e.Mouse.RightButton == OpenTK.Input.ButtonState.Pressed) {
Vector2 v2Look = vLook.Xy.Normalized ();
Vector2 disp = v2Look.PerpendicularLeft * otk_e.XDelta * MoveSpeed +
v2Look * otk_e.YDelta * MoveSpeed;
vEyeTarget += new Vector3 (disp.X, disp.Y, 0);
UpdateViewMatrix ();
}
}
void Hello3D_MouseWheelChanged (object sender, OpenTK.Input.MouseWheelEventArgs e)
{
float speed = ZoomSpeed;
//if (Keyboard[OpenTK.Input.Key.ControlLeft])
// speed *= 20.0f;
eyeDist -= e.Delta * speed;
if (eyeDist < zNear)
eyeDist = zNear;
else if (eyeDist > zFar)
eyeDist = zFar;
UpdateViewMatrix ();
}
}
}
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