textures doesn't work
Posted Monday, 9 May, 2011 - 12:25 by miujin inHi,
since hours I search the error in my code, but I doesn't find some.
I only want to map a texture on a quad, but when I render it, the quad has the color of my last glColor call and there is nothing to see of my texture.
public int AddRenderObject(List<Bitmap> bmps, List<float[]> positions) { KTC_DicomObject dicom = new KTC_DicomObject(); dicom.textureIDs = new List<int>(); Bitmap bmp = bmps[0]; System.Drawing.Imaging.BitmapData texturedata = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb); int texID = GL.GenTexture(); dicom.textureIDs.Add(texID); GL.BindTexture(TextureTarget.Texture2D, dicom.textureIDs[0]); //GL.textur GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgb, texturedata.Width, texturedata.Height, 0, PixelFormat.Rgb, PixelType.UnsignedByte, texturedata.Scan0); float[] coordinates = positions[0]; dicom.ListID = GL.GenLists(1); //GL.Enable(EnableCap.Texture2D); //GL.BindTexture(TextureTarget.Texture2D, dicom.textureIDs[0]); GL.NewList(dicom.ListID, ListMode.Compile); GL.Begin(BeginMode.Quads); GL.TexCoord2(0.0, 0.0); GL.Vertex3(coordinates[0], coordinates[1], coordinates[2]); GL.TexCoord2(1.0, 0.0); GL.Vertex3(coordinates[3], coordinates[4], coordinates[5]); GL.TexCoord2(1.0, 1.0); GL.Vertex3(coordinates[6], coordinates[7], coordinates[8]); GL.TexCoord2(0.0, 1.0); GL.Vertex3(coordinates[9], coordinates[10], coordinates[11]); GL.End(); GL.EndList(); //GL.BindTexture(TextureTarget.Texture2D, 0); //GL.Disable(EnableCap.Texture2D); bmp.UnlockBits(texturedata); m_dicomobj.Add(dicom); return m_dicomobj.Count - 1; }
An the code of my render function
GL.Enable(EnableCap.Texture2D); GL.BindTexture(TextureTarget.Texture2D, m_dicomobj[0].textureIDs[0]); GL.CallList(m_dicomobj[0].ListID); GL.Disable(EnableCap.Texture2D);