Render final scene to Texture in Shader [FX Composer]

Render final scene to Texture in Shader [FX Composer]

• chenzhu

  In this case your script part in the pass token seams right. Have you add the texture to your fx file It has to look similar like this:

  Texture MyRenderTargetTexture : RenderColorTarget

  <

      string ResourceType = "2D";

      float3 Dimensions = float3( 800, 600, 0 );

      int MIPLevels = 1;  

  >;

  
  
  

• Saric Sead

  Ralf .. had to go to bed last night .. it was late.

  Anyway .. I attached 2 more images:

  rendered with shadows:

  http://i17.photobucket.com/albums/b95/julesthe/green_pre_alpha.jpg

  shadows alpha-blend with background attempt:

  http://i17.photobucket.com/albums/b95/julesthe/green.jpg

  in the 3rd pass of my shader, I am trying to blend the results of the scene render (w/ shadows) with the background image (big green background). I simply wanted the block to "show through" everywhere it was white, and blend slightly darker where it appears gray. Any thoughts as to how I would accomplish proper blending (essentially I need to figure out how to NOT show the white part of the geometry in the scene and simply blend the gray part)

  Here is the shader I use:

  // this pass renders the background

  pass Bg <
  string Script = "RenderColorTarget0=;"
  "ClearSetColor=ClearColor;"
  "Clear=Color;"
  "Draw=buffer;";
  > {
  VertexShader = compile vs_1_1 ScreenQuadVS();
  AlphaBlendEnable = false;
  ZEnable = false;
  PixelShader = compile ps_1_1 TexQuadPS(BgSampler);
  }

  // this pass makes the shadow map
  pass MakeShadow <
  string Script = "RenderColorTarget0=ColorShadMap;"
  "RenderDepthStencilTarget=ShadDepthTarget;"
  "RenderPort=light0;"
  "ClearSetColor=ShadowClearColor;"
  "ClearSetDepth=ClearDepth;"
  "Clear=Color;"
  "Clear=Depth;"
  "Draw=geometry;";
  > {
  VertexShader = compile vs_2_0 shadowGenVS(WorldXf,WorldITXf,ShadowViewProjXf);
  ZEnable = true;
  ZWriteEnable = true;
  ZFunc = LessEqual;
  CullMode = None;
  // no pixel shader
  }

  // finally blend the shadow and background
  pass UseShadow <
  string Script = "RenderColorTarget0=;"
  "RenderDepthStencilTarget=;"
  "RenderPort=;"
  //"ClearSetColor=ClearColor;"
  "ClearSetDepth=ClearDepth;"
  //"Clear=Color;"
  "Clear=Depth;"
  "Draw=geometry;";
  > {
  VertexShader = compile vs_2_0 shadowUseVS(WorldXf,WorldITXf, WorldViewProjXf,
  ShadowViewProjXf,ViewIXf,ShadBiasXf, SpotLightPos);

  // blending here
  AlphaBlendEnable = true;
  SrcBlend =srcalpha;
  DestBlend =invsrcColor;

  ZEnable = true;
  ZWriteEnable = true;
  ZFunc = LessEqual;
  CullMode = None;
  
  PixelShader = compile ps_2_a useShadowPS();
  }

  
  

• vlad b

  Actually, I want to render the texture inside of FX composer. At that time you would have the ability to right click the texture in the Textures panel and save it to a file. Eventually these textures may or may not be used as textures for other effects.
  

• Min Wang

  feel free to delete this post.

  I managed to get it working .. I need to disable the alpha blending in the 3rd pass. It was the pixel shader in that pass that needed fixing.

  
  

• lbGURU

  Only to make sure I understand you right. You want to render this in a texture inside your own program and not inside FX Composer After this you need this texture for an other effect

  
  
  
• Render final scene to Texture in Shader [FX Composer]