我试图在OpenGL中使用四边形有一个纹理,但我的尝试已经变得无用了。我的四边形只显示为白色。这是代码:
using System;
using System.IO;
using System.Drawing;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SharpGL;
using System.Drawing.Imaging;
using System.Threading;
namespace Project
{
public static class Render
{
private static List<Sprite> sprites = new List<Sprite>();
private static Bitmap imageStorage = null;
private static BitmapData imgDataStorage;
private static uint[] imageTexArray = new uint[9999];
public static int SpriteCount
{
get {return sprites.Count;}
}
public static void AddSprite(Sprite sprite)
{
sprites.Add(sprite);
sprite.indexNum = imageTexArray.Length-1;
Thread.Yield();
OpenGL gl = Program.mainWin.openGLControl.OpenGL;
// Load the identity matrix.
gl.LoadIdentity();
imageStorage = (Bitmap)sprite.sprite;
imgDataStorage = imageStorage.LockBits(new Rectangle(0, 0, imageStorage.Width, imageStorage.Height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
imageStorage.UnlockBits(imgDataStorage);
gl.GenTextures(1, imageTexArray); // Create a texture to generate to
gl.BindTexture(OpenGL.GL_TEXTURE_2D, imageTexArray[sprite.indexNum]);
gl.TexImage2D(OpenGL.GL_TEXTURE_2D, 0, (int)OpenGL.GL_RGB8, imageStorage.Width, imageStorage.Height, 0, OpenGL.GL_BGR_EXT, OpenGL.GL_UNSIGNED_BYTE, imgDataStorage.Scan0);
float[] array = new float[] { OpenGL.GL_NEAREST };
// Assign some texure parameters
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MAG_FILTER, array);
gl.TexParameter(OpenGL.GL_TEXTURE_2D, OpenGL.GL_TEXTURE_MIN_FILTER, array);
Console.WriteLine("IMPICKLERICKWUBADUBADUBDUBREEEEE Aka A sprite was added");
}
public static void RenderSprites()
{
OpenGL gl = Program.mainWin.openGLControl.OpenGL;
// Clear the color and depth buffer.
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
gl.LoadIdentity();
foreach (Sprite s in sprites)
{
// Draw the sprite
gl.Enable(OpenGL.GL_TEXTURE_2D);
gl.BindTexture(OpenGL.GL_TEXTURE_2D, imageTexArray[s.indexNum]);
gl.Color(1.0, 1.0f, 1.0f, 1.0f);
gl.Begin(OpenGL.GL_QUADS);
gl.TexCoord(1, 0); gl.Vertex(s.position.X + s.sprite.Width/2, s.position.Y - s.sprite.Height/2); // Bottom Right
gl.TexCoord(0, 0); gl.Vertex(s.position.X - s.sprite.Width/2, s.position.Y - s.sprite.Height/2); // Bottom Left
gl.TexCoord(0, 1); gl.Vertex(s.position.X - s.sprite.Width/2, s.position.Y + s.sprite.Height/2); // Top Left
gl.TexCoord(1, 1); gl.Vertex(s.position.X + s.sprite.Width/2, s.position.Y + s.sprite.Height/2); // Top Right
// etc!
gl.End();
gl.Disable(OpenGL.GL_TEXTURE_2D);
}
}
}
public class Sprite
{
/// <summary>
/// The sprite
/// </summary>
public Image sprite;
/// <summary>
/// The directory to the sprite
/// </summary>
public string spritePath;
public int renderNumber;
public int indexNum = 0;
public Vector position;
public Sprite(string path)
{
sprite = Image.FromFile(path);
if (sprite == null) throw new DirectoryNotFoundException("Sprite could not be found");
spritePath = path;
renderNumber = Render.SpriteCount;
position = Vector.Zero;
Render.AddSprite(this);
Init();
}
public Sprite(string path, Vector pos)
{
sprite = Image.FromFile(path);
if (sprite == null) throw new DirectoryNotFoundException("Sprite could not be found");
spritePath = path;
renderNumber = Render.SpriteCount;
position = pos;
Render.AddSprite(this);
Init();
}
private void Init()
{
}
}
}