From 95b39da7cad68e1bd1a9c8be713ab1df7988f3d0 Mon Sep 17 00:00:00 2001
From: Marcus Wanners <marcus@wanners.net>
Date: Sat, 8 Aug 2009 22:01:18 +0000
Subject: [PATCH] Tooltip for Free Look setting. Postprocessing: Major
 improvements to nightvision2. Should actually "enhance the game's graphics in
 a way". Much, much better than the old version.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3951 8ced0084-cf51-0410-be5f-012b33b47a6e
---
 Data/User/Shaders/nightvision2.txt            | 66 ++++++++++++-------
 .../Plugin_VideoOGL/Src/GUI/ConfigDlg.cpp     |  7 +-
 2 files changed, 49 insertions(+), 24 deletions(-)

diff --git a/Data/User/Shaders/nightvision2.txt b/Data/User/Shaders/nightvision2.txt
index 95c67f51fb..e0e75718ee 100644
--- a/Data/User/Shaders/nightvision2.txt
+++ b/Data/User/Shaders/nightvision2.txt
@@ -2,28 +2,50 @@ uniform samplerRECT samp0 : register(s0);
 
 void main(out float4 ocol0 : COLOR0, in float2 uv0 : TEXCOORD0)
 {
+  //variables
+  int internalresolution = 1282; //for 800x600; should be changed for other settings.
   float4 c0 = texRECT(samp0, uv0).rgba;
-  float grey = ((0.2 * c0.r) + (0.7 * c0.g) + (0.1 * c0.b))*0.7;
-  if (grey > 0.7){
-    ;
-  }
-  else if (grey > 0.55){
-    grey = grey*1.5;
-  }
-  else if (grey > 0.4){
-    grey = grey*2;
-  }
-  else if (grey > 0.3){
-    grey = grey*2.5;
-  }
-  else if (grey > 0.2){
-    grey = grey*3;
-  }
-  else if (grey > 0.1){
-    grey = grey*3.5;
-  }
-  else{
-    grey = grey*4;
-  }
+  //blur
+  float4 blurtotal = float4(0, 0, 0, 0);
+  float blursize = 1.5;
+  blurtotal += texRECT(samp0, uv0 + float2(-blursize, -blursize));
+  blurtotal += texRECT(samp0, uv0 + float2(-blursize,  blursize));
+  blurtotal += texRECT(samp0, uv0 + float2( blursize, -blursize));
+  blurtotal += texRECT(samp0, uv0 + float2( blursize,  blursize));
+  blurtotal += texRECT(samp0, uv0 + float2(-blursize,  0));
+  blurtotal += texRECT(samp0, uv0 + float2( blursize,  0));
+  blurtotal += texRECT(samp0, uv0 + float2( 0, -blursize));
+  blurtotal += texRECT(samp0, uv0 + float2( 0,  blursize));
+  blurtotal *= 0.125;
+  c0 = blurtotal;
+  //greyscale
+  float grey = ((0.3 * c0.r) + (0.4 * c0.g) + (0.3 * c0.b));
+  // brighten
+  grey = grey * 0.5 + 0.7;
+  // darken edges
+  float x = uv0[0];
+  float y = uv0[1];
+  if (x > internalresolution/2) x = internalresolution-x;
+  if (y > internalresolution/2) y = internalresolution-y;
+  if (x > internalresolution/2*0.95) x = internalresolution/2*0.95;
+  if (y > internalresolution/2*0.95) y = internalresolution/2*0.95;
+  x = -x+641;
+  y = -y+641;
+  /*****inline square root routines*****/
+  // bit of a performance bottleneck.
+  // neccessary to make the darkened area rounded
+  // instead of rhombus-shaped.
+  float sqrt=x/10;
+  while((sqrt*sqrt) < x) sqrt+=0.1;
+  x = sqrt;
+  sqrt=y/10;
+  while((sqrt*sqrt) < y) sqrt+=0.1;
+  y = sqrt;
+  /*****end of inline square root routines*****/
+  x *= 2;
+  y *= 2;
+  grey -= x/200;
+  grey -= y/200;
+  // output
   ocol0 = float4(0, grey, 0, 1.0);
 }
\ No newline at end of file
diff --git a/Source/Plugins/Plugin_VideoOGL/Src/GUI/ConfigDlg.cpp b/Source/Plugins/Plugin_VideoOGL/Src/GUI/ConfigDlg.cpp
index 42098b2012..fa449102e5 100644
--- a/Source/Plugins/Plugin_VideoOGL/Src/GUI/ConfigDlg.cpp
+++ b/Source/Plugins/Plugin_VideoOGL/Src/GUI/ConfigDlg.cpp
@@ -414,8 +414,11 @@ void GFXConfigDialogOGL::CreateGUIControls()
 		" set up for the dump or several gigabytes of space available."));
 #endif
 	m_DumpFrames->SetValue(g_Config.bDumpFrames);
-    m_FreeLook = new wxCheckBox(m_PageAdvanced, ID_FREELOOK, wxT("Free Look"), wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator);
-    m_FreeLook->SetValue(g_Config.bFreeLook);
+	m_FreeLook = new wxCheckBox(m_PageAdvanced, ID_FREELOOK, wxT("Free Look"), wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator);
+	m_FreeLook->SetToolTip(
+		wxT("Use WASD to move around, 0 and 9 to move faster or slower, and the")
+		wxT(" left mouse button to pan the view."));
+	m_FreeLook->SetValue(g_Config.bFreeLook);
 
 	// Hacks controls
 	m_SafeTextureCache = new wxCheckBox(m_PageAdvanced, ID_SAFETEXTURECACHE, wxT("Use Safe texture cache"), wxDefaultPosition, wxDefaultSize, 0, wxDefaultValidator);