Hey, I am trying to display rectangle and put texture on it. The problem I
get is white screen, even if OpenGL ES error is all the time 0 (so no
error).
Here is my code:
public class Mesh
{
float[] _Vertices;
short[] _Indices;
byte[] _Colors;
float _xTrans;
int[] Textures = new int[1];
DDSFile TextureFile;
bool ShouldMakeTexture = true;
float[] _TextureCoordinates;
int TextureID = 0;
public float[] TextureCoordinates
{
get { return _TextureCoordinates; }
set { _TextureCoordinates = value; }
}
public float[] Vertices
{
get { return _Vertices; }
set { _Vertices = value; }
}
public Mesh (float[] vertices, byte[] colors, float xTranslation,
short[]
indices,
DDSFile textureFile)
{
_Vertices = vertices;
_Colors = colors;
_xTrans = xTranslation;
_Indices = indices;
TextureFile = textureFile;
}
public void Render()
{
GL.FrontFace(All.Ccw);
GL.Enable(All.CullFace);
GL.CullFace(All.Back);
GL.EnableClientState(All.VertexArray);
GL.VertexPointer(3, All.Float, 0, _Vertices);
if (ShouldMakeTexture)
MakeTexture();
int Error = (int)GL.GetError();
GL.Enable(All.Texture2D);
GL.EnableClientState(All.TextureCoordArray);
GL.TexCoordPointer(2, All.Float, 0, TextureCoordinates);
GL.BindTexture(All.Texture2D, Textures[0]);
GL.DrawElements(All.Triangles, _Indices.Length,
All.UnsignedShort,
_Indices);
GL.DisableClientState(All.VertexArray);
GL.DisableClientState(All.TextureCoordArray);
GL.Disable(All.CullFace);
}
private void MakeTexture()
{
GL.GenTextures(1, Textures);
GL.BindTexture(All.Texture2D, TextureID);
GL.TexParameter(All.Texture2D, All.TextureMinFilter,
(int)All.Linear);
GL.TexParameter(All.Texture2D,All.TextureMagFilter,
(int)All.Linear);
int[] parameters = new int[50];
GL.GetInteger(All.CompressedTextureFormats, parameters);
int Error = (int)GL.GetError();
GL.CompressedTexImage2D(All.Texture2D, 0, All.Palette8Rgba8Oes,
TextureFile.Header.Width, TextureFile.Header.Height, 0,
TextureFile.Data.Length, TextureFile.Data);
Error = (int)GL.GetError();
this.ShouldMakeTexture = false;
}
}
So, in my GLView I create a mesh, supply indices, vertices and texture
coordinates. In OnRenderFrame I just call mesh.Render() -> it should create
texture. Code of MakeTexture executes fine, no error reported but I get
white screen. So, is my code wrong, or is it my .dds file which is bad? Do
you know any good tools for making compression for OpenGL ES? I used
photoshop with Palette8 ARGB.
Thanks for help,
Konrad
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