RenderTarget2D and MipMaps

RenderTarget2D and MipMaps

• Madix_t

  What platform is this on If Windows, what is your graphics card
  
  
  

• dakota367

  Create a rendertarget with more than one mip level, and you're done. If there are mipmaps, the framework will automatically fill them for you during the Resolve call.
  
  
  

• simon_

  We're thinking this is actually a driver bug. Apparently there is a problem with some NVidia drivers where the StretchRect call that we use internally is failing, but reporting success so we have no way of detecting and working around the problem.
  
  
  

• nattylife

  Windows, (gf6200 128MB)
  and first mip map looks like this: [old link]
  
  

• Davids Learning

  i don't know why but it don't work
  
  m_DrawBufferColor = new RenderTarget2D(m_GraphicsDevice,
  1024, 1024, 4, SurfaceFormat.Color, MultiSampleType.None, 0);
  
  m_Game.GraphicsDevice.SetRenderTarget(0, m_DrawBufferColor);
  
  //here i render
  
  m_GraphicsDevice.ResolveRenderTarget(0);
  m_GraphicsDevice.SetRenderTarget(0, null);
  
  //now i use it
  
  Texture2D Tex = m_DrawBufferColor.GetTexture();
  m_HDREffect.Parameters["DiffuseTexture"].SetValue(Tex);
  
  //part of fx file
  Out = tex2Dbias(DiffuseSampler, float4(In.TexCoord.xy, 0, 3));
  
  and i get some thing that looks like like random (texture on this mip level is some random memory)
  
  //------------------------
  it work when i do it that way but its slower:
  
  Texture2D Tex = new Texture2D(m_Game.GraphicsDevice, 1024, 1024, 1,
  ResourceUsage.AutoGenerateMipMap, SurfaceFormat.Color);
  
  byte[] Data = new byte[1024*1024*4];
  m_DrawBufferColor.GetTexture().GetData(Data);
  Tex.SetData(Data);
  m_HDREffect.Parameters["DiffuseTexture"].SetValue(Tex);
  
  and now it work fine
  //-------------------------
  
  any sugestion what i do wrong
  
  

• Angry Coder

  Do you happen to remember which version of the driver you are using for your graphics card
  
  

• Sarwanan

  i try it on 91.31 and 93.71 and dont work
  
  i have link to exe : [old link]
  
  if you see many earth on black it mean that my comp/system is broken:)
  if you see some thing else - its something with code.
  
  
• RenderTarget2D and MipMaps