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LuaBin 2.0

Viewing file root / lua / postprocess / sobel.lua

  1.  
  2. local SobelMaterial = Material( "pp/sobel" )
  3. SobelMaterial:SetMaterialTexture( "$fbtexture", render.GetScreenEffectTexture() );
  4.  
  5. // convars
  6. local pp_sobel_threshold = CreateClientConVar( "pp_sobel_threshold", "0.11", false, false );
  7. local pp_sobel = CreateClientConVar( "pp_sobel", "0", false, false );
  8.  
  9. /*------------------------------------
  10.         DrawSobel()
  11. ------------------------------------*/
  12. function DrawSobel( threshold )
  13.  
  14.         render.UpdateScreenEffectTexture();
  15.  
  16.         // update threshold value
  17.         SobelMaterial:SetMaterialFloat( "$threshold", threshold );
  18.  
  19.         render.SetMaterial( SobelMaterial );
  20.         render.DrawScreenQuad();
  21.        
  22. end
  23.  
  24.  
  25. /*------------------------------------
  26.         DrawInternal()
  27. ------------------------------------*/
  28. local function DrawInternal()
  29.  
  30.         if ( !pp_sobel:GetBool() ) then return; end
  31.         if ( !GAMEMODE:PostProcessPermitted( "sobel" ) ) then return; end
  32.  
  33.         DrawSobel( pp_sobel_threshold:GetFloat() );
  34.  
  35. end
  36. hook.Add( "RenderScreenspaceEffects", "RenderSobel", DrawInternal );
  37.  
  38.  
  39. /*------------------------------------
  40.         BuildControlPanel()
  41. ------------------------------------*/
  42. local function BuildControlPanel( panel )
  43.  
  44.         panel:AddControl( "Header", { Text = "#Sobel", Description = "" }  )
  45.         panel:AddControl( "CheckBox", { Label = "#Enable", Command = "pp_sobel" }  )
  46.        
  47.         panel:AddControl( "Slider", {
  48.                 Label = "#Threshold",
  49.                 Command = "pp_sobel_threshold",
  50.                 Type = "Float",
  51.                 Min = "0",
  52.                 Max = "1"
  53.         } );
  54.  
  55. end
  56.  
  57. /*------------------------------------
  58.         AddPostProcessMenu()
  59. ------------------------------------*/
  60. local function AddPostProcessMenu()
  61.  
  62.         spawnmenu.AddToolMenuOption( "PostProcessing", "PPShader", "Sobel", "#Sobel", "", "", BuildControlPanel, { SwitchConVar = "pp_sobel" } );
  63.  
  64. end
  65. hook.Add( "PopulateToolMenu", "AddPostProcessMenu_Sobel", AddPostProcessMenu );
  66.