public static Texture create(int width, int height)
{
Texture t = new Texture();
t.id = GL.GenTexture();
GL.BindTexture(TextureTarget.Texture2D, t.id);
byte[] data = new byte[width * height * 4];
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, width, height, 0,
OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
GL.BindTexture(TextureTarget.Texture2D, 0);
return t;
}
public static Texture fromFile(string path, int mipmaps = 0)
{
if (!File.Exists(path))
throw new ArgumentException(path);
Texture t = new Texture();
t.id = GL.GenTexture();
Bitmap bmp = new Bitmap(path);
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
BitmapData data = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
GL.BindTexture(TextureTarget.Texture2D, t.id);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0,
OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
bmp.UnlockBits(data);
bmp.Dispose();
if (mipmaps > 0)
{
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBaseLevel, 0);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinLod, 0);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLod, mipmaps);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.LinearMipmapLinear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
}
else
{
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.Repeat);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.Repeat);
}
GL.BindTexture(TextureTarget.Texture2D, 0);
return t;
}
private void load()
{
models = new ContentManager<VertexBufferObject>("Data/Models/", new LoadContentFunction<VertexBufferObject>(
(string name, string path) =>
new VertexBufferObject(OBJLoader.loadModelfromOBJ(path + name + ".obj"))));
textures = new ContentManager<Texture>("Data/Textures/", new LoadContentFunction<Texture>(
(string name, string path) =>
Texture.fromFile(path + name + ".png")));
Mesh[] meshes = OBJLoader.loadModelfromOBJ("Data/Models/Motorrad.obj");
models.add("motorcycle", new VertexBufferObject(meshes[0]));
models.add("wheel", new VertexBufferObject(meshes[1]));
textures.add("motorcycle", Texture.fromFile("Data/Textures/Motorrad.png"));
Mesh[] tmmeshes = OBJLoader.loadModelfromOBJ("Data/Models/tm.obj");
models.add("tachometer", new VertexBufferObject(tmmeshes[1]));
models.add("tachometer|", new VertexBufferObject(tmmeshes[0]));
textures.add("tachometer", Texture.fromFile("Data/Textures/tm2.png"));
textures.add("tachometer|", Texture.fromFile("Data/Textures/tm.png"));
meshes = OBJLoader.loadModelfromOBJ("Data/Models/tree.obj");
models.add("tree", new VertexBufferObject(meshes[1]));
models.add("leaf", new VertexBufferObject(meshes[0]));
//textures.add("leafs",Texture.fromFile("Data/Textures/leafs.png",5));
grassModel = new VertexBufferObject(OBJLoader.loadModelfromOBJ("Data/Models/grass.obj")[0]);
grassTexture = Texture.fromFile("Data/Textures/grass.png",5);
//Framebuffer
GL.GenFramebuffers(1, out framebuffer);
GL.BindFramebuffer(FramebufferTarget.Framebuffer, framebuffer);
//Depth texture
GL.GenTextures(1, out depthTextureArray);
GL.BindTexture(TextureTarget.Texture2DArray, depthTextureArray);
GL.TexParameter(TextureTarget.Texture2DArray, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2DArray, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2DArray, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
GL.TexParameter(TextureTarget.Texture2DArray, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
//GL.TexParameter(TextureTarget.Texture2DArray, TextureParameterName.TextureCompareMode, (int)TextureCompareMode.CompareRToTexture);
GL.TexImage3D(TextureTarget.Texture2DArray, 0, PixelInternalFormat.DepthComponent16, depthTextureWidth, depthTextureWidth, 3, 0, PixelFormat.DepthComponent, PixelType.Float, new IntPtr(0));
GL.BindTexture(TextureTarget.Texture2DArray, 0);
//--> framebuffer
GL.FramebufferTexture(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthAttachment, depthTextureArray, 0);
GL.DrawBuffer(DrawBufferMode.None);
GL.ReadBuffer(ReadBufferMode.None);
FramebufferErrorCode ec = GL.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
if (ec != FramebufferErrorCode.FramebufferComplete)
throw new Exception("Framebuffer konnte nicht erstellt werden!");
GL.BindFramebuffer(FramebufferTarget.Framebuffer, 0);
}
