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게임에서 피킹을 구현하려고 시도했는데 선택한 색이 항상 255,255,255,255 또는 255,0,0,0을 반환하기 때문에 무언가를 잃어 버렸습니다. 이 두 가지 색상은 무작위로 발생하는 것으로 보입니다. 동일한 블록을 여러 번 클릭하면 변경됩니다. 내가 뭘 잘못했는지 모르겠지만 정말로 stackoverflow의 신이이 문제에 대한 해결책을 찾는데 도움이되기를 바라고 있습니다. 
OpenTK "피킹"이 의도 한대로 작동하지 않음
그리고 여기 내 GameClient 클래스입니다 : 여기
출력을 보여줍니다 사진입니다 (나는 순간이 없었 아직 정리 나는 지저분한 코드에 대해 사과)using System.Drawing;
using GameProject.Game.Framework.DataStructure;
using GameProject.Game.Framework.Generators;
using GameProject.Game.Framework.Geometry;
using System.Diagnostics;
using OpenTK;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL;
using OpenTK.Input;
using GameProject.Game.Client.Widgets;
using QuickFont;
namespace GameProject.Game.Client {
public class GameClient : GameWindow {
/**
* Client Variables
*/
public const String CLIENT_VERSION = "v0.0.1";
public const String GAME_NAME = "Voxelbyte";
public FirstPersonCameraWidget GameCamera;
private Point _mousePosition;
private Point _lastMousePosition;
private bool _centerCursorAfterRelease = false;
private int _totalVoxelsRenderered;
private bool _isWireframe = false;
private Random ClientRandomInstance;
/**
* Game Variables
*/
public VoxelWorld World;
public uint SelectedVoxelIndex;
public QFont DeveloperText;
public TessellatorWidget Tesssellator;
public GameClient()
: base(800 , 600 , GraphicsMode.Default , GAME_NAME) {
GL.Enable(EnableCap.DepthTest);
GL.ClearColor(0.3f , 0.3f , 0.3f , 0.0f);
}
protected override void OnUnload(EventArgs e) {
base.OnUnload(e);
foreach(Voxel voxel in World.VisibleVoxels) {
GL.DeleteQueries(1 , ref voxel.OcclusionID);
}
}
protected override void OnLoad(EventArgs e) {
base.OnLoad(e);
ClientRandomInstance = new Random();
Tesssellator = new TessellatorWidget();
DeveloperText = new QFont("Resources/Fonts/times.ttf" , 14 , FontStyle.Regular);
GameCamera = new FirstPersonCameraWidget(
new Vector3(30.0f , 8.0f , 30.0f) ,
0.0f ,
0.0f ,
15.0f ,
0.4f);
GL.CullFace(CullFaceMode.Back);
GL.Enable(EnableCap.CullFace);
World = BattleWorldReader.ReadFromImage(
WorldGenerator.GenerateRandomWorld(new Size(50 , 50) , 8 , "Sharon Rose Day"));
Stopwatch sw = new Stopwatch();
sw.Start();
World.Rebuild();
sw.Stop();
Console.WriteLine("World Generation+Optimization took: {0}ms" , sw.ElapsedMilliseconds);
}
protected override void OnMouseMove(MouseMoveEventArgs e) {
base.OnMouseMove(e);
_mousePosition = new Point(e.X , e.Y);
if(e.Mouse.IsButtonDown(MouseButton.Right)) {
}
}
protected override void OnMouseDown(MouseButtonEventArgs e) {
base.OnMouseDown(e);
if(e.Mouse.IsButtonDown(MouseButton.Left)) {
/**
* Implement Mouse Picking!
* This is your next objective!
*/
PickGeometry(e.X , e.Y);
}
if(e.Mouse.IsButtonDown(MouseButton.Right)) {
Point nativeMouse = System.Windows.Forms.Cursor.Position;
_lastMousePosition = nativeMouse;
Point windowCenter = new Point(Bounds.Left + Bounds.Width/2 , Bounds.Top + Bounds.Height/2);
System.Windows.Forms.Cursor.Position = windowCenter;
GameCamera.IsLooking = true;
this.CursorVisible = false;
}
}
private void PickGeometry(int x , int y) {
Console.WriteLine("Picking...");
/**
* Draw The Geometry As solid
* colors
*/
GL.ClearColor(1.0f , 1.0f , 1.0f , 1.0f);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.DisableClientState(ArrayCap.TextureCoordArray);
GL.EnableClientState(ArrayCap.ColorArray);
GL.Disable(EnableCap.Texture2D);
GameCamera.LookThrough(this , _mousePosition , null); // Pretty sure I need this
foreach(Voxel voxel in World.VisibleVoxels) {
voxel.IsSelected = false;
if(GameCamera.Frustum.SphereInFrustum(voxel.Location , 1.8f)) {
// Lazy generation of random colors; I will improve this later.
byte red = (byte)ClientRandomInstance.Next(256);
byte green = (byte)ClientRandomInstance.Next(256);
byte blue = (byte)ClientRandomInstance.Next(256);
voxel.RenderAsColor(red , green , blue);
}
}
/**
* Get the color of the pixel beneath the mouse cursor
*
* THIS ALWAYS RETURNS 255,255,255,255 FOR SOME REASON
*
*/
byte[] pixel = new byte[ 3 ];
int[] viewport = new int[ 4 ];
GL.GetInteger(GetPName.Viewport , viewport);
GL.ReadPixels(x , viewport[ 2 ] - y , 1 , 1 , PixelFormat.Rgba , PixelType.UnsignedByte , pixel);
// This color below is always 255,255,255,255 and I don't know why!
Color pickedColor = Color.FromArgb(pixel[ 0 ] , pixel[ 1 ] , pixel[ 2 ]);
Console.WriteLine(pickedColor.ToString());
Console.WriteLine("Picking Done");
}
protected override void OnMouseUp(MouseButtonEventArgs e) {
base.OnMouseUp(e);
if(e.Button == MouseButton.Right) {
GameCamera.IsLooking = false;
if(!_centerCursorAfterRelease) {
System.Windows.Forms.Cursor.Position = _lastMousePosition;
}
this.CursorVisible = true;
}
}
protected override void OnKeyDown(KeyboardKeyEventArgs e) {
base.OnKeyDown(e);
if(e.Key == Key.F1) {
_isWireframe = !_isWireframe;
}
}
protected override void OnRenderFrame(FrameEventArgs e) {
base.OnRenderFrame(e);
/**
* Pass 1
* Normal Rendering
*/
GL.MatrixMode(MatrixMode.Modelview);
GL.ClearColor(0.3f , 0.3f , 0.3f , 1.0f);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.Enable(EnableCap.Texture2D);
GL.EnableClientState(ArrayCap.VertexArray);
GL.EnableClientState(ArrayCap.TextureCoordArray);
GL.DisableClientState(ArrayCap.ColorArray);
GameCamera.LookThrough(this , _mousePosition , e);
foreach(Voxel voxel in World.VisibleVoxels) {
if(GameCamera.Frustum.SphereInFrustum(voxel.Location.X , voxel.Location.Y , voxel.Location.Z , 1.8f)) {
Tesssellator.TessellateUnseenFaces(ref GameCamera , voxel);
voxel.Render(GameCamera);
}
}
GL.DisableClientState(ArrayCap.VertexArray);
GL.DisableClientState(ArrayCap.TextureCoordArray);
GL.DisableClientState(ArrayCap.ColorArray);
//RenderDeveloperHud();
SwapBuffers();
this.Title = GAME_NAME + " FPS: " + (int)this.RenderFrequency;
}
private void RenderDeveloperHud() {
QFont.Begin();
GL.PushMatrix();
GL.Translate(0.0f , 5 , 0f);
DeveloperText.Print("Voxelbyte");
GL.Translate(0f , 30 , 0f);
DeveloperText.Print("X: " + (int)GameCamera.Location.X);
GL.Translate(0f , 24 , 0f);
DeveloperText.Print("Y: " + (int)GameCamera.Location.Y);
GL.Translate(0.0f , 24 , 0f);
DeveloperText.Print("Z: " + (int)GameCamera.Location.Z);
GL.Translate(0.0f , 24 , 0f);
DeveloperText.Print("VIF: " + _totalVoxelsRenderered);
GL.PopMatrix();
QFont.End();
}
private void CheckKeyboardInput(FrameEventArgs eventArgs) {
KeyboardState keyboardState = OpenTK.Input.Keyboard.GetState();
GameCamera.ProcessMovement(keyboardState , eventArgs);
if(keyboardState[ Key.Escape ]) {
Exit();
}
}
protected override void OnUpdateFrame(FrameEventArgs e) {
CheckKeyboardInput(e);
}
protected override void OnResize(EventArgs e) {
base.OnResize(e);
GL.Viewport(
ClientRectangle.X , ClientRectangle.Y , ClientRectangle.Width , ClientRectangle.Height);
Matrix4 projection = Matrix4.CreatePerspectiveFieldOfView(
(float)Math.PI/4 , (float)Width/(float)Height , 0.1f , 1000.0f);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadMatrix(ref projection);
}
}
}
그것은 우리 중 최고 일이 있습니다. :) –