private void DrawStereoImages()
{
Vector3d vectorLeftEye = this.eye - this.distEye * (double)this.StereoDistance * this.esq;
GL.DrawBuffer(DrawBufferMode.BackRight);
GL.ClearColor(this.ClearColor[0], this.ClearColor[1], this.ClearColor[2], 0.0f);
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.ColorBufferBit);
GL.LoadIdentity();
Matrix4d perspectiveFieldOfView1 = Matrix4d.CreatePerspectiveFieldOfView(Math.PI / 4.0, (double)this.glControl1.Width / (double)this.glControl1.Height, (double)this.zFar * 0.001, (double)this.zFar + 1000.0);
GL.LoadMatrix(ref perspectiveFieldOfView1);
Matrix4d mat1 = Matrix4d.LookAt(vectorLeftEye.X, vectorLeftEye.Y, vectorLeftEye.Z, this.center.X, this.center.Y, this.center.Z, this.up.X, this.up.Y, this.up.Z);
GL.MultMatrix(ref mat1);
this.DrawAll3DObjects();
Vector3d vectorRightEye = this.eye + this.distEye * (double)this.StereoDistance * this.esq;
GL.DrawBuffer(DrawBufferMode.BackLeft);
GL.ClearColor(this.ClearColor[0], this.ClearColor[1], this.ClearColor[2], 0.0f);
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.ColorBufferBit);
GL.LoadIdentity();
Matrix4d perspectiveFieldOfView2 = Matrix4d.CreatePerspectiveFieldOfView(Math.PI / 4.0, (double)this.glControl1.Width / (double)this.glControl1.Height, (double)this.zFar * 0.001, (double)this.zFar + 1000.0);
GL.LoadMatrix(ref perspectiveFieldOfView2);
Matrix4d mat2 = Matrix4d.LookAt(vectorRightEye.X, vectorRightEye.Y, vectorRightEye.Z, this.center.X, this.center.Y, this.center.Z, this.up.X, this.up.Y, this.up.Z);
GL.MultMatrix(ref mat2);
this.DrawAll3DObjects();
this.glControl1.SwapBuffers();
}
public bool UpdateMatrices()
{
if (hasChanged == false)
{
return(false);
}
hasChanged = false;
ViewMatrix = Matrix4d.LookAt(Position, LookAt, Vector3d.UnitY);
switch (ProjectionType)
{
case ProjectionType.Perspective:
ProjectionMatrix = Matrix4d.CreatePerspectiveFieldOfView(FovRads, Width / (float)Height, NearZ, FarZ);
break;
case ProjectionType.Ortographic:
var halfWidth = Width / 2f;
var halfHeight = Height / 2f;
ProjectionMatrix = Matrix4d.CreateOrthographicOffCenter(-halfWidth, halfWidth, -halfHeight, halfHeight, NearZ, FarZ);
break;
default:
throw new ArgumentOutOfRangeException();
}
return(true);
}
public static Matrix4d GetProjectionMatrix(VideoCamera videoCamera, UIImage frame)
{
// Aspect is inverted because we rotate the image
return(Matrix4d.CreatePerspectiveFieldOfView(
fovy: videoCamera.FieldOfView *Math.PI / 180,
aspect: frame.Size.Height / frame.Size.Width,
zNear: 0.01,
zFar: 4700));
}
protected override void OnRenderFrame(FrameEventArgs e)
{
double fpsstability = 10.0;
this._AverageFPS = (this.RenderFrequency + this._AverageFPS * fpsstability) / (fpsstability + 1);
this.Title = DefaultTitle + " - Press H for help!"; // fps messurement is off
GL.ClearColor(0.3f, 0.5f, 1.0f, 1.0f);
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.ColorBufferBit);
GL.MatrixMode(MatrixMode.Projection);
Matrix4d proj = Matrix4d.CreatePerspectiveFieldOfView(0.9, (double)this.Width / (double)this.Height, 0.2, 600.0);
GL.LoadMatrix(ref proj);
Matrix4d view = Matrix4d.LookAt(
Vector.FromDoubleVector(this._CamPos),
Vector.FromDoubleVector(Vector.Add(this._CamPos, this.CamDirection)),
new Vector3d(0.0, 0.0, 1.0));
GL.MultMatrix(ref view);
// Test picking
int mx = this.Mouse.X;
int my = this.Mouse.Y;
int sx = this.ClientSize.Width;
int sy = this.ClientSize.Height;
Vector3d p = Unproject(new Vector3d(-1.0 + 2.0 * ((double)mx / (double)sx), 1.0 - 2.0 * ((double)my / (double)sy), 0.995), view, proj);
Vector <double> tracestart = this._CamPos;
Vector <double> traceend = new Vector <double>(p.X, p.Y, p.Z);
Vector <double> dif = Vector.Normalize(Vector.Subtract(traceend, tracestart));
traceend = Vector.Add(Vector.Multiply(dif, 400), tracestart);
foreach (TraceHit <MinecraftRenderer.HitBorder> hb in Trace.TraceRay(this._Renderer.GetHitSurface(this.Slice), tracestart, traceend, MinecraftRenderer.HitBorder.Default))
{
if ((hb.Border.Value.Polarity == Polarity.Positive && tracestart[hb.Border.Direction] > hb.Border.Position[hb.Border.Direction]) ||
(hb.Border.Value.Polarity == Polarity.Negative && tracestart[hb.Border.Direction] < hb.Border.Position[hb.Border.Direction]))
{
this._LastHit = hb.Border;
break;
}
}
Point <int>?highlight = this._LastHit.HasValue ? this._LastHit.Value.Value.Chunk : null;
if (this._SliceAxis.HasValue)
{
if (this._SliceAxis.Value == Axis.Z)
{
this._SliceLevel = this._SliceLevel < 1 ? 1 : this._SliceLevel;
this._SliceLevel = this._SliceLevel > MinecraftRenderer.ChunkSize - 1 ? MinecraftRenderer.ChunkSize - 1 : this._SliceLevel;
}
}
this._Renderer.Render(this._CamPos, this.Slice, highlight);
this._RendererTrans.Render(this._CamPos, this.Slice, highlight);
this.SwapBuffers();
}
// VideoCamera videoCamera (videoCamera.FieldOfView), UIImage frame.Size.Height, frame.Size.Height
public static Matrix4d GetProjectionMatrix(double aspect, float zNear, float zFar)
{
var fov = 60;
// Aspect is height/widht (in portrait mode only?)
return(Matrix4d.CreatePerspectiveFieldOfView(
fovy: fov *Math.PI / 180,
aspect: aspect,
zNear: zNear,
zFar: zFar));
}
/// <summary>
/// Convert a world space coordinate into a screen space coordinate.
/// </summary>
/// <param name="world">The world coordinate</param>
/// <returns>The screen coordinate</returns>
public Coordinate WorldToScreen(Coordinate world)
{
var viewport = new[] { 0, 0, Width, Height };
var pm = Matrix4d.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(Camera.FOV), Width / (float)Height, 0.1f, 50000);
var vm = Matrix4d.LookAt(
new Vector3d(Camera.Location.X, Camera.Location.Y, Camera.Location.Z),
new Vector3d(Camera.LookAt.X, Camera.LookAt.Y, Camera.LookAt.Z),
Vector3d.UnitZ);
return(MathFunctions.Project(world, viewport, pm, vm));
}
// update viewport
internal static void UpdateViewport()
{
GL.Viewport(0, 0, Renderer.ScreenWidth, Renderer.ScreenHeight);
World.AspectRatio = (double)Renderer.ScreenWidth / (double)Renderer.ScreenHeight;
World.HorizontalViewingAngle = 2.0 * Math.Atan(Math.Tan(0.5 * World.VerticalViewingAngle) * World.AspectRatio);
GL.MatrixMode(MatrixMode.Projection);
Matrix4d perspective = Matrix4d.CreatePerspectiveFieldOfView(World.VerticalViewingAngle, World.AspectRatio, 0.2, 1000.0);
GL.LoadMatrix(ref perspective);
GL.Scale(-1, 1, 1);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
}
// update viewport
internal static void UpdateViewport()
{
GL.Viewport(0, 0, Screen.Width, Screen.Height);
Screen.AspectRatio = (double)Screen.Width / (double)Screen.Height;
Camera.HorizontalViewingAngle = 2.0 * Math.Atan(Math.Tan(0.5 * Camera.VerticalViewingAngle) * Screen.AspectRatio);
GL.MatrixMode(MatrixMode.Projection);
Matrix4d perspective = Matrix4d.CreatePerspectiveFieldOfView(Camera.VerticalViewingAngle, Screen.AspectRatio, 0.2, 1000.0);
GL.LoadMatrix(ref perspective);
GL.Scale(-1, 1, 1);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
}
public override void CalcProjectionMatrix()
{
double aspect = mViewWidth / mViewHeight;
mProjectionMatrix = Matrix4d.CreatePerspectiveFieldOfView(
mFovY,
aspect,
mProjectionNear,
mProjectionFar
);
mProjectionMatrixInv = mProjectionMatrix.Invert();
}
// This is the main function for determining what will be rendered
private void glControl1_Paint(object sender, PaintEventArgs e)
{
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
//Basic Setup for viewing
//Setup Perspective (lookat)
//the first argument (Set of 3) is the location of your camera
//the second argument (Set of 3) is the point the camera centers on
//the third argument (Set of 3) is to indicate what direction should be considered "up"
lookat = Matrix4.LookAt(0, 0, -1500 + zoomFactor, 0, 0, 0, 0, 1, 0);
perspective = Matrix4d.CreatePerspectiveFieldOfView(1.04f, 16 / 9f, 1f, 100000f);
//Setup camera
GL.MatrixMode(MatrixMode.Projection);
//Load Perspective
GL.LoadIdentity();
GL.LoadMatrix(ref perspective);
//Load POV/Camera
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadMatrix(ref lookat);
//Apply transformations and rotations based on UI controls (Mouse)
GL.Rotate(angleY, 1.0f, 0, 0);
GL.Rotate(angleX, 0, 1.0f, 0);
//GL.Translate(-panX1, 0, 0);
//GL.Translate(0, panY1, 0);
GL.Viewport((int)panX1, (int)panY1, glControl1.Width, glControl1.Height); // Use all of the glControl painting area
//Size of window
GL.Enable(EnableCap.DepthTest);
//Enable correct Z Drawings
GL.DepthFunc(DepthFunction.Less);
GL.PushMatrix();
// Objects to be displayed go here.
// Y is up and down, Z is towards you, X is left and right
GL.Begin(PrimitiveType.Points);
paintVertices();
GL.End();
GL.Begin(PrimitiveType.Lines);
paintAxis();
GL.End();
GL.PopMatrix();
glControl1.SwapBuffers();
}
/// <summary>
/// Project the 2D coordinates from the screen coordinates outwards
/// from the camera along the lookat vector, taking the frustrum
/// into account. The resulting line will be run from the camera
/// position along the view axis and end at the back clipping pane.
/// </summary>
/// <param name="x">The X coordinate on screen</param>
/// <param name="y">The Y coordinate on screen</param>
/// <returns>A line beginning at the camera location and tracing
/// along the 3D projection for at least 1,000,000 units.</returns>
public Line CastRayFromScreen(int x, int y)
{
var near = new Coordinate(x, Height - y, 0);
var far = new Coordinate(x, Height - y, 1);
var pm = Matrix4d.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(Camera.FOV), Width / (float)Height, 0.1f, 50000);
var vm = Matrix4d.LookAt(
new Vector3d(Camera.Location.X, Camera.Location.Y, Camera.Location.Z),
new Vector3d(Camera.LookAt.X, Camera.LookAt.Y, Camera.LookAt.Z),
Vector3d.UnitZ);
var viewport = new[] { 0, 0, Width, Height };
var un = MathFunctions.Unproject(near, viewport, pm, vm);
var uf = MathFunctions.Unproject(far, viewport, pm, vm);
return((un == null || uf == null) ? null : new Line(un, uf));
}
/// <summary>
/// Initialize a viewport and set up a perspective scene
/// </summary>
private void setupViewport()
{
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
Matrix4d cache = Matrix4d.CreatePerspectiveFieldOfView(
Math.PI / 4,
GLControl.Width / (double)(GLControl.Height == 0 ? 1 : GLControl.Height),
1.0,
100.0);
GL.LoadMatrix(ref cache);
GL.Viewport(new Rectangle(0, 0, GLControl.Width, GLControl.Height));
GL.MatrixMode(MatrixMode.Modelview);
Matrix4d cameraCache = camera.cameraMatrix;
GL.LoadMatrix(ref cameraCache);
}
/// <summary>
/// Generates a 4x4 double Matrix representing the camera's View (with Perspective added)
/// </summary>
/// <param name="Pos">The camera's Position</param>
/// <param name="Up">The camera's Up vector</param>
/// <param name="Target">The camera's Target vector</param>
/// <param name="cameraType">The camera's Type</param>
/// <param name="zFar">The camera's ZFar</param>
/// <param name="zNear">The camera's zNear</param>
/// <param name="cameraWidth">The camera's width</param>
/// <param name="cameraHeight">The camera's height</param>
/// <param name="cameraAspect">The camera's aspect ratio</param>
/// <param name="cameraFOV">The camera's field of view</param>
/// <returns>a 4x4 double Matrix</returns>
private Matrix4d generateMatrix(Vector3d Pos, Vector3d Up, Vector3d Target, ComponentConstants.CAM_TYPES cameraType, double zNear, double zFar, double cameraWidth = 0, double cameraHeight = 0, double cameraAspect = 0, double cameraFOV = 0)
{
Matrix4d ProjectionMatrix;
if (cameraType == ComponentConstants.CAM_TYPES.ORTHOGRAPHIC)
{
ProjectionMatrix = Matrix4d.CreateOrthographic(cameraWidth, cameraHeight, zNear, zFar);
}
else
{
ProjectionMatrix = Matrix4d.CreatePerspectiveFieldOfView(cameraFOV, cameraAspect, zNear, zFar);
}
Matrix4d ViewMatrix = Matrix4d.LookAt(Pos, Target, Up);
Matrix4d ResultMatrix = ProjectionMatrix * ViewMatrix;
return(ResultMatrix);
}
private void Draw3D()
{
GL.DrawBuffer(DrawBufferMode.Back);
GL.ClearColor(this.ClearColor[0], this.ClearColor[1], this.ClearColor[2], 0.0f);
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.ColorBufferBit);
GL.LoadIdentity();
Matrix4d perspectiveFieldOfView = Matrix4d.CreatePerspectiveFieldOfView(Math.PI / 4.0, (double)this.glControl1.Width / (double)this.glControl1.Height, (double)this.zFar * 0.001, (double)this.zFar + 1000.0);
GL.LoadMatrix(ref perspectiveFieldOfView);
Matrix4d mat = Matrix4d.LookAt(this.eye.X, this.eye.Y, this.eye.Z, this.center.X, this.center.Y, this.center.Z, this.up.X, this.up.Y, this.up.Z);
GL.MultMatrix(ref mat);
this.DrawAll3DObjects();
GL.Material(MaterialFace.FrontAndBack, MaterialParameter.Shininess, new float[4] {
0.9f, 0.9f, 0.9f, 1f
});
this.glControl1.SwapBuffers();
}
private void Render(object sender, PaintEventArgs e)
{
if (!loaded)
{
return;
}
MakeCurrent();
SetupViewport();
//double size = Scene.Size();
double size = Scene.Max.Y - Scene.Min.Y;
double SceneYOffset = -size / 2f;
double defaultzoom = (double)Math.Sqrt(Math.Pow(TableRadius, 2) + Math.Pow(TableHeight, 2));
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.LoadIdentity();
var aspect_ratio = Width / (double)Height;
var projection = Matrix4d.CreatePerspectiveFieldOfView(
MathHelper.PiOver4, double.Parse(aspect_ratio.ToString()), 1f, 1024);
// var modelview = Matrix4d.LookAt(0, size / 2 , - DragZoom * defaultzoom * 2f,
// 0,TableHeight/2, 0, 0, size, 0);
var viewHeight = (TableHeight / 2.50) + SceneYOffset;
var modelview = Matrix4d.LookAt(0, viewHeight, Math.Max(0.00000001f, -(-Drag.Zoom * defaultzoom * 1.5f)),
0, viewHeight, 0, 0, size, 0);
GL.MatrixMode(MatrixMode.Projection);
if (Projection)
{
GL.LoadMatrix(ref projection);
}
else
{
GL.LoadIdentity();
double x = Math.Max(TableRadius * 2, TableHeight) * Drag.Zoom / 2.0;
double y = x * ((double)Height / (double)Width);
GL.Ortho(-x, x, -y, y, 0.0, 10000.0);
}
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadMatrix(ref modelview);
#region LIGHT
//if (Lightning)
{
float[] lightPos = new float[] { (float)(-TableRadius * 2f), (float)TableRadius * 2f, (float)TableHeight * 2f, 1.0f };
GL.PointSize(5);
GL.Disable(EnableCap.Lighting);
GL.Begin(PrimitiveType.Points);
GL.Color3(Color.Yellow);
GL.Vertex3(lightPos);
GL.End();
GL.PointSize(1);
float[] light_ambient = { 0.2f, 0.2f, 0.2f, 1.0f };
float[] light_diffuse = { 1.0f, 1.0f, 1.0f, 1.0f };
float[] light_specular = { 1.0f, 1.0f, 1.0f, 1.0f };
float[] spotdirection = { 0.5f, -1.0f, -1.0f };
GL.Light(LightName.Light0, LightParameter.Ambient, light_ambient);
GL.Light(LightName.Light0, LightParameter.Diffuse, light_diffuse);
GL.Light(LightName.Light0, LightParameter.Specular, light_specular);
GL.Enable(EnableCap.Lighting);
GL.Light(LightName.Light0, LightParameter.Position, lightPos);
GL.Enable(EnableCap.Light0);
//GL.Light(LightName.Light0, LightParameter.SpotDirection, spotdirection);
//GL.Light(LightName.Light0, LightParameter.SpotCutoff, 20);
}
#endregion
GL.Translate(Drag.Pane.X, -Drag.Pane.Y, 0);
Matrix4d m = MatrixFromYawPitchRoll(-Math.PI * Drag.Angle.X / 360.0f, -Math.PI * Drag.Angle.Y / 360.0f, 0);
GL.MultMatrix(ref m);
// Model space
#region Box/Axis
GL.Disable(EnableCap.Lighting);
Vector3d scannerCenter = new Vector3d(0, -size / 2f, 0);
Axis(new Vector3d(scannerCenter.X - TableRadius, scannerCenter.Y, scannerCenter.Z + TableRadius), 10);
#endregion ;
GL.Translate(0, SceneYOffset, 0);
if (BoundingBox)
{
DrawBoundingBox(Color.Red, Scene.Min, Scene.Max);
}
if (Lightning)
{
GL.Enable(EnableCap.Lighting);
GL.ColorMaterial(MaterialFace.FrontAndBack, ColorMaterialParameter.AmbientAndDiffuse);
GL.Enable(EnableCap.ColorMaterial);
}
GL.PointSize(2);
GL.LineWidth(2);
RenderingContext context = RenderingContext.From(ViewerConfig);
context.ApplyFaceDefault();
GL.ShadeModel(Smooth ? ShadingModel.Smooth : ShadingModel.Flat);
GL.Enable(EnableCap.CullFace);
GL.CullFace(CullFaceMode.Back);
Scene.Render(ref context);
GL.Translate(0, -SceneYOffset, 0);
DrawScannerTable(scannerCenter);
SwapBuffers();
using (Graphics g = Graphics.FromHwnd(this.Handle))
{
using (SolidBrush bg = new SolidBrush(this.BackColor))
{
using (SolidBrush bf = new SolidBrush(this.ForeColor))
{
string text = String.Format("{0} points", Scene.GetNumVertices().ToString("N0"));
SizeF s = g.MeasureString(text, this.Font);
RectangleF rect = new RectangleF(0, 0, s.Width, s.Height);
rect.Y = this.Height - s.Height;
g.FillRectangle(bg, rect);
g.DrawString(text, this.Font, bf, rect.Location);
}
}
}
// this.Label.Text = String.Format("{0} points", Scene.GetNumVertices());
}
/// <summary>
/// Render the robot model and paint the GLControl
/// </summary>
/// <param name="sender">Object sending the event</param>
/// <param name="e">Paint event arguments</param>
private void GLControl1_Paint(object sender, PaintEventArgs e)
{
GL.Enable(EnableCap.Lighting);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
if (!IsLoaded || !ModelLoaded)
{
glControl1.SwapBuffers();
return;
}
UpdateCameraMode();
baseNode.Compute(true);
// Project
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
double aspect = (double)Width / (double)Height;
Matrix4d perspective = Matrix4d.CreatePerspectiveFieldOfView(Math.PI / 2, aspect, 0.1, 1000);
GL.MultMatrix(ref perspective);
GL.Viewport(0, 0, Width, Height);
// Transform
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
cam.translate();
#region LIGHTS
GL.LightModel(LightModelParameter.LightModelAmbient, ambient);
GL.Light(LightName.Light0, LightParameter.Position, l0_position);
GL.Light(LightName.Light0, LightParameter.Diffuse, l_diffuse);
GL.Light(LightName.Light0, LightParameter.Specular, l_specular);
GL.Light(LightName.Light1, LightParameter.Position, l1_position);
GL.Light(LightName.Light1, LightParameter.Diffuse, l_diffuse);
GL.Light(LightName.Light1, LightParameter.Specular, l_specular);
#endregion
DoSelect();
RenderInternal();
// Overlay:
foreach (RigidNode_Base node in nodes)
{
if ((((OGL_RigidNode)node).highlight & OGL_RigidNode.HighlightState.ACTIVE) == OGL_RigidNode.HighlightState.ACTIVE)
{
((OGL_RigidNode)node).RenderDebug(settings.modelDrawAxes);
}
}
#region OVERLAY
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
GL.Ortho(0, Width, Height, 0, 0, 10);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
GL.UseProgram(0);
GL.Disable(EnableCap.Lighting);
RenderOverlay();
#endregion
glControl1.SwapBuffers();
}
/// <summary>
/// Creates the projection matrix based on the control setup.
/// </summary>
/// <returns>The projection matrix</returns>
protected Matrix4d CreateProjectionMatrix()
{
float aspect_ratio = this.ClientSize.Width / (float)this.ClientSize.Height;
return(Matrix4d.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(Camera.FieldOfView), aspect_ratio, (float)Camera.NearClip, (float)Camera.FarClip));
}
public override Matrix4d ComputeProjectionMatrix(ICamera camera)
{
var aspectRatio = camera.Width / camera.Height;
return(Matrix4d.CreatePerspectiveFieldOfView(camera.HorizontalFieldOfView / aspectRatio, aspectRatio, NearPlane, FarPlane));
}
protected override void OnRenderFrame(FrameEventArgs e)
{
GL.Viewport(0, 0, Width, Height);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
Integrator.Draw((Matrix4d.CreateFromQuaternion(CamRot) * Matrix4d.CreateTranslation(CamPos)).Inverted() * Matrix4d.CreatePerspectiveFieldOfView(1, (double)Width / (double)Height, NearZ, FarZ), Frustum);
SwapBuffers();
}
// This is the main function for determining what will be rendered
private void glControl1_Paint(object sender, PaintEventArgs e)
{
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
//Basic Setup for viewing
Matrix4d perspective = Matrix4d.CreatePerspectiveFieldOfView(1.04f, 3 / 4f, 1f, 100000f);
//Setup Perspective
//the first argument (Set of 3) is the location of your camera, so m_eye seems correct
//the second argument (Set of 3) is the point the camera centers on, so you'll want a
//location relative to your eye location or you'll always be focused on a single point in space
//the third argument (Set of 3) is to indicate what direction should be considered "up"
Matrix4d lookat = Matrix4d.LookAt(SphereCoordinates.getX(),
SphereCoordinates.getY(), SphereCoordinates.getZ(), viewingAngle[3], viewingAngle[4], viewingAngle[5],
0, -1, 0);
//Set labels
cameraPositionLabel.Text = "<" + Math.Round(SphereCoordinates.getX()) + ", " + Math.Round(SphereCoordinates.getY()) + ", " +
Math.Round(SphereCoordinates.getZ()) + "> with Radius: " + SphereCoordinates.getRadius();
lookingAtLabel.Text = "<" + Math.Round(viewingAngle[3]) + ", " + Math.Round(viewingAngle[4]) + ", " +
Math.Round(viewingAngle[5]) + ">";
//Setup camera
GL.MatrixMode(MatrixMode.Projection);
//Load Perspective
GL.LoadIdentity();
GL.LoadMatrix(ref perspective);
GL.MatrixMode(MatrixMode.Modelview);
//Load Camera
GL.LoadIdentity();
GL.LoadMatrix(ref lookat);
GL.Viewport(0, 0, glControl1.Width, glControl1.Height);
//Size of window
GL.Enable(EnableCap.DepthTest);
//Enable correct Z Drawings
GL.DepthFunc(DepthFunction.Less);
// GL.Rotate(1, 0, 1, 0);
GL.PushMatrix();
//Rotating
//GL.Rotate(1, 0, 0, 1);
//GL.Rotate(1, 0, 1, 0);
// Translation of object across axii
//GL.Translate(new Vector3((float)this.viewingAngle[3], (float)this.viewingAngle[4], (float)this.viewingAngle[5]));
// Objects to be displayed go here.
//Draw pyramid, Y is up and down, Z is towards you, X is left and right
//Vertex goes (X,Y,Z)
GL.Begin(PrimitiveType.Points);
paintVertices();
GL.End();
GL.Begin(PrimitiveType.Lines);
//Line X
GL.Color3(Color.Red);
GL.Vertex3(0, 0, 0);
GL.Vertex3(100, 0, 0);
//Line Y
GL.Color3(Color.Blue);
GL.Vertex3(0, 0, 0);
GL.Vertex3(0, 100, 0);
//Line Z
GL.Color3(Color.Green);
GL.Vertex3(0, 0, 0);
GL.Vertex3(0, 0, 100);
GL.End();
GL.PopMatrix();
//Rotating
//GL.Rotate(1, 0, 0, 1);
//GL.Rotate(1, 0, 1, 0);
glControl1.SwapBuffers();
}
public void Execute(CameraMan man)
{
if (man.Dirty || _dirty)
{
LookAt = man.LookAt;
//
// Distance from
//
var distanceToLookAt = (man.Pos3d - man.LookAt3d).Length;
var near = distanceToLookAt - LandThickness / 2;
if (near < Nearest)
{
near = Nearest;
}
var far = near + LandThickness;
//
// Regenerate the matrices
//
_projectionMatrix = Matrix4d.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(45), _aspect, near, far);
_projectionMatrixF = ToMatrix4(_projectionMatrix);
var pos = man.Pos3d;
var lookAt = man.LookAt3d;
var _up = pos;
_up.Normalize();
_viewMatrix = Matrix4d.LookAt(pos, lookAt, _up);
_viewMatrixF = ToMatrix4(_viewMatrix);
//
// Calculate some spots on the screen so we know what's visible
//
ScreenLocations[0] = GetLocation(new PointF(Width, 0));
ScreenLocations[1] = GetLocation(new PointF(Width, Height / 8));
ScreenLocations[2] = GetLocation(new PointF(Width, Height / 3));
ScreenLocations[3] = GetLocation(new PointF(Width, Height / 2));
ScreenLocations[4] = GetLocation(new PointF(Width, Height * 7 / 8));
ScreenLocations[5] = GetLocation(new PointF(Width, Height * 2 / 3));
ScreenLocations[6] = GetLocation(new PointF(Width, Height));
ScreenLocations[7] = GetLocation(new PointF(0, 0));
ScreenLocations[8] = GetLocation(new PointF(0, Height / 8));
ScreenLocations[9] = GetLocation(new PointF(0, Height / 3));
ScreenLocations[10] = GetLocation(new PointF(0, Height / 2));
ScreenLocations[11] = GetLocation(new PointF(0, Height * 7 / 8));
ScreenLocations[12] = GetLocation(new PointF(0, Height * 2 / 3));
ScreenLocations[13] = GetLocation(new PointF(0, Height));
ScreenLocations[14] = GetLocation(new PointF(Width / 2, 0));
ScreenLocations[15] = GetLocation(new PointF(Width / 2, Height / 8));
ScreenLocations[16] = GetLocation(new PointF(Width / 2, Height / 3));
ScreenLocations[17] = GetLocation(new PointF(Width / 2, Height / 2));
ScreenLocations[18] = GetLocation(new PointF(Width / 2, Height * 7 / 8));
ScreenLocations[19] = GetLocation(new PointF(Width / 2, Height * 2 / 3));
ScreenLocations[20] = GetLocation(new PointF(Width / 2, Height));
//
// Calculate the rads per pixel X
//
var dp = 100;
var left = new PointF(Width / 2 - dp / 2, 15 * Height / 24);
var right = new PointF(Width / 2 + dp / 2, 15 * Height / 24);
var leftLoc = GetLocation(left);
var rightLoc = GetLocation(right);
var leftPos = GetPosition(left);
var rightPos = GetPosition(right);
if (leftLoc != null && rightLoc != null)
{
var ddegs = rightLoc.VectorTo(leftLoc).Length;
RadiansPerPixel = ddegs / dp * Math.PI / 180;
var dkm = (rightPos.Value - leftPos.Value).Length;
var kmPerPixel = dkm / dp;
UnitsPerPixel = (float)(kmPerPixel);
MetersPerPixel = kmPerPixel * 1000;
//
// Calculate the zoom level
//
var IdealZoom = Math.Log(2 * Math.PI / 256 / RadiansPerPixel) / Math.Log(2);
Zoom = (int)(IdealZoom + 0.5); // Rounded to nearest
if (Zoom > 18)
{
Zoom = 18;
}
else if (Zoom < 4)
{
Zoom = 4;
}
//Console.WriteLine ("rpp = {0}; mpp = {1}; zoom = {2}", RadiansPerPixel, MetersPerPixel, IdealZoom);
}
_dirty = false;
man.Dirty = false;
}
GL.MatrixMode(All.Projection);
GL.LoadMatrix(ref _projectionMatrixF.Row0.X);
GL.MatrixMode(All.Modelview);
GL.LoadMatrix(ref _viewMatrixF.Row0.X);
}
public void UseDefaultProjection()
{
UseDefaultProjectionMatrix = true;
ProjectionMatrix = Matrix4d.CreatePerspectiveFieldOfView((Math.PI / 180) * FieldOfView,
((double)Viewport.Width) / ((double)Viewport.Height), NearPlane, FarPlane);
}
/// <summary>Calculate the projection matrix. Needs to be done on initial startup and anytime game width, height or FOV changes.</summary>
internal void CalculateProjectionMatrix()
{
Matrix4d.CreatePerspectiveFieldOfView(Settings.FieldOfView, Width / (float)Height, 0.01f, Settings.ZFar, out Projection);
}
