experimental map shaders

modules/game_shaders/map.frag

@@ -1,105 +0,0 @@
-uniform float opacity; // painter opacity
-uniform vec4 color; // painter color
-uniform float time; // time in seconds since shader linkage
-uniform sampler2D tex0; // map texture
-varying vec2 texCoord; // map texture coords
-//uniform vec4 awareArea;
-
-
-void main()
-{
-    gl_FragColor = texture2D(tex0, texCoord);
-}
-
-/*
-vec4 grayScale(vec4 color, float factor)
-{
-    float gray = dot(color.rgb, vec3(0.299, 0.587, 0.114));
-    return vec4(gray*factor + (1-factor)*color.r,
-                gray*factor + (1-factor)*color.g,
-                gray*factor + (1-factor)*color.b, 1);
-}
-
-// grayscale fog
-void main()
-{
-    vec4 color = texture2D(texture, textureCoords);
-    float dist = 0;
-    // left
-    if(textureCoords.x < awareArea.x && textureCoords.y < awareArea.y)
-        dist = distance(textureCoords, awareArea.xy);
-    else if(textureCoords.x < awareArea.x && textureCoords.y < awareArea.w)
-        dist = distance(textureCoords, vec2(awareArea.x, textureCoords.y));
-    else if(textureCoords.x < awareArea.x)
-        dist = distance(textureCoords, awareArea.xw);
-    // right
-    else if(textureCoords.x > awareArea.z && textureCoords.y < awareArea.y)
-        dist = distance(textureCoords, awareArea.zy);
-    else if(textureCoords.x > awareArea.z && textureCoords.y < awareArea.w)
-        dist = distance(textureCoords, vec2(awareArea.z, textureCoords.y));
-    else if(textureCoords.x > awareArea.z)
-        dist = distance(textureCoords, awareArea.zw);
-    // top
-    else if(textureCoords.y < awareArea.y)
-        dist = distance(textureCoords, vec2(textureCoords.x, awareArea.y));
-    // bottom
-    else if(textureCoords.y > awareArea.w)
-        dist = distance(textureCoords, vec2(textureCoords.x, awareArea.w));
-    if(dist > 0) {
-        float range = 0.01;
-        float factor = min(dist/range, 1.0);
-        color = grayScale(color, factor);
-        //color.rgb *= 1 - (factor * 0.5);
-    }
-    gl_FragColor = color;
-}
-*/
-
-/*
-sepia
-void main()
-{
-    vec4 color = texture2D(texture, textureCoords);
-    if(textureCoords.x < awareArea.x || textureCoords.y < awareArea.y || textureCoords.x > awareArea.z || textureCoords.y > awareArea.w) {
-        gl_FragColor.r = dot(color, vec4(.393, .769, .189, .0));
-        gl_FragColor.g = dot(color, vec4(.349, .686, .168, .0));
-        gl_FragColor.b = dot(color, vec4(.272, .534, .131, .0));
-        gl_FragColor.a = 1;
-    } else
-        gl_FragColor = color;
-}
-*/
-
-/*
-void main()
-{
-    vec4 color = texture2D(texture, textureCoords);
-    vec2 awareRange = (awareArea.zw - awareArea.xy)/2.0;
-    float dist = distance(textureCoords, awareArea.xy + awareRange);
-    float start = min(awareRange.x, awareRange.y);
-    float range = awareRange*0.1;
-    float endFactor = 0.3;
-    if(dist >= start) {
-        color.rgb *= 1 - (min((dist - start)/range, 1.0) * (2.0 - endFactor));
-    }
-    gl_FragColor = color;
-}
-*/
-/*
-void main()
-{
-   vec4 sum = vec4(0);
-   vec2 texcoord = texCoord;
-   int j;
-   int i;
-
-   for( i= -4 ;i < 4; i++)
-   {
-        for (j = -4; j < 4; j++)
-        {
-            sum += texture2D(tex0, texcoord + vec2(j, i)*0.0025) * 0.0125;
-        }
-   }
-   gl_FragColor = texture2D(tex0, texCoord) + sum;
-}
-*/

modules/game_shaders/shaders.lua

@@ -0,0 +1,56 @@
+Shaders = {}
+
+local HOTKEY = 'Ctrl+X'
+local SHADERS = {
+  ['Default'] = 'shaders/default.frag',
+  ['Bloom'] = 'shaders/bloom.frag',
+  ['Sepia'] = 'shaders/sepia.frag',
+  ['Grayscale'] = 'shaders/grayscale.frag',
+  ['Pulse'] = 'shaders/pulse.frag',
+  ['Old Tv'] = 'shaders/oldtv.frag',
+  ['Fog'] = 'shaders/fog.frag',
+  ['Party'] = 'shaders/party.frag',
+  ['Radial Blur'] = 'shaders/radialblur.frag',
+  ['Zomg'] = 'shaders/zomg.frag',
+}
+
+local shadersPanel
+
+function Shaders.init()
+  importStyle 'shaders.otui'
+
+
+  Keyboard.bindKeyDown(HOTKEY, Shaders.toggle)
+
+  shadersPanel = createWidget('ShadersPanel', GameInterface.getMapPanel())
+  shadersPanel:hide()
+
+  local mapComboBox = shadersPanel:getChildById('mapComboBox')
+  mapComboBox.onOptionChange = function(combobox, option)
+    local map = GameInterface.getMapPanel()
+    map:setMapShader(g_shaders.getShader(option))
+    print(option)
+  end
+
+  for name,file in pairs(SHADERS) do
+    local shader = g_shaders.createFragmentShader(name, file)
+    mapComboBox:addOption(name)
+
+    if name == 'Fog' then
+      shader:addMultiTexture('images/clouds.png')
+    end
+  end
+
+  local map = GameInterface.getMapPanel()
+  map:setMapShader(g_shaders.getShader('Default'))
+end
+
+function Shaders.terminate()
+  Keyboard.unbindKeyDown(HOTKEY)
+  shadersPanel:destroy()
+  shadersPanel = nil
+end
+
+function Shaders.toggle()
+  shadersPanel:setVisible(not shadersPanel:isVisible())
+end

modules/game_shaders/shaders.otmod

@@ -0,0 +1,15 @@
+Module
+  name: game_shaders
+  description: Manage game shaders
+  author: edubart
+  website: www.otclient.info
+
+  dependencies:
+    - game
+
+  @onLoad: |
+    dofile 'shaders'
+    Shaders.init()
+
+  @onUnload: |
+    Shaders.terminate()

modules/game_shaders/shaders.otui

@@ -0,0 +1,15 @@
+ShadersPanel < UIWidget
+  focusable: false
+
+  anchors.top: parent.top
+  anchors.left: parent.left
+  border-color: red
+  border-width: 1
+
+  width: 100
+  layout:
+    type: verticalBox
+    fit-children: true
+
+  ComboBox
+    id: mapComboBox

modules/game_shaders/shaders/bloom.frag

@@ -0,0 +1,16 @@
+uniform float u_Time;
+uniform sampler2D u_Tex0;
+varying vec2 v_TexCoord;
+
+void main()
+{
+    vec4 color = texture2D(u_Tex0, v_TexCoord);
+    int j;
+    int i;
+
+    for(i = -2 ;i <= 2; i++)
+        for(j = -2; j <= 2; j++)
+            color += texture2D(u_Tex0, v_TexCoord + vec2(i, j)*0.0025) * 0.025;
+
+    gl_FragColor = color;
+}

modules/game_shaders/shaders/default.frag

@@ -0,0 +1,8 @@
+uniform float u_Time;
+uniform sampler2D u_Tex0;
+varying vec2 v_TexCoord;
+
+void main()
+{
+    gl_FragColor = texture2D(u_Tex0, v_TexCoord);
+}

modules/game_shaders/shaders/fog.frag

@@ -0,0 +1,18 @@
+uniform float u_Time;
+uniform sampler2D u_Tex0;
+uniform sampler2D u_Tex1;
+varying vec2 v_TexCoord;
+
+vec2 direction = vec2(1.0,0.3);
+float speed = 0.05;
+float pressure = 0.6;
+float zoom = 0.5;
+
+void main(void)
+{
+    vec2 offset = (v_TexCoord + (direction * u_Time * speed)) / zoom;
+    vec3 bgcol = texture2D(u_Tex0, v_TexCoord).xyz;
+    vec3 fogcol = texture2D(u_Tex1, offset).xyz;
+    vec3 col = bgcol + fogcol*pressure;
+    gl_FragColor = vec4(col,1.0);
+}

modules/game_shaders/shaders/grayscale.frag

@@ -0,0 +1,14 @@
+uniform float u_Time;
+uniform sampler2D u_Tex0;
+varying vec2 v_TexCoord;
+
+vec4 grayscale(vec4 color)
+{
+    float gray = dot(color.rgb, vec3(0.299, 0.587, 0.114));
+    return vec4(gray, gray, gray, 1);
+}
+
+void main()
+{
+    gl_FragColor = grayscale(texture2D(u_Tex0, v_TexCoord));
+}

modules/game_shaders/shaders/oldtv.frag

@@ -0,0 +1,24 @@
+uniform float u_Time;
+varying vec2 v_TexCoord;
+uniform sampler2D u_Tex0;
+
+void main(void)
+{
+    vec2 q = v_TexCoord;
+    vec2 uv = 0.5 + (q-0.5)*(0.9 + 0.1*sin(0.2*u_Time));
+
+    vec3 oricol = texture2D(u_Tex0,vec2(q.x,q.y)).xyz;
+    vec3 col = oricol;
+
+    col = clamp(col*0.5+0.5*col*col*1.2,0.0,1.0);
+
+    col *= 0.5 + 0.5*16.0*uv.x*uv.y*(1.0-uv.x)*(1.0-uv.y);
+
+    col *= vec3(0.8,1.0,0.7);
+
+    col *= 0.9+0.1*sin(10.0*u_Time+uv.y*1000.0);
+
+    col *= 0.97+0.03*sin(110.0*u_Time);
+
+    gl_FragColor = vec4(col,1.0);
+}

modules/game_shaders/shaders/party.frag

@@ -0,0 +1,13 @@
+uniform float u_Time;
+uniform sampler2D u_Tex0;
+varying vec2 v_TexCoord;
+
+void main()
+{
+    vec4 col = texture2D(u_Tex0, v_TexCoord);
+    float d = u_Time * 2;
+    col.x += (1.0 + sin(d))*0.25;
+    col.y += (1.0 + sin(d*2))*0.25;
+    col.z += (1.0 + sin(d*4))*0.25;
+    gl_FragColor = col;
+}

modules/game_shaders/shaders/pulse.frag

@@ -0,0 +1,19 @@
+uniform float u_Time;
+uniform vec2 u_Resolution;
+uniform sampler2D u_Tex0;
+varying vec2 v_TexCoord;
+
+void main(void)
+{
+    vec2 halfres = u_Resolution.xy/2.0;
+    vec2 cPos = v_TexCoord.xy * u_Resolution;
+
+    cPos.x -= 0.5*halfres.x*sin(u_Time/2.0)+0.3*halfres.x*cos(u_Time)+halfres.x;
+    cPos.y -= 0.4*halfres.y*sin(u_Time/5.0)+0.3*halfres.y*cos(u_Time)+halfres.y;
+    float cLength = length(cPos);
+
+    vec2 uv = v_TexCoord.xy+ ((cPos/cLength)*sin(cLength/30.0-u_Time*10.0)/25.0)*0.15;
+    vec3 col = texture2D(u_Tex0,uv).xyz * 250.0/cLength;
+
+    gl_FragColor = vec4(col,1.0);
+}

modules/game_shaders/shaders/radialblur.frag

@@ -0,0 +1,46 @@
+uniform sampler2D u_Tex0;
+varying vec2 v_TexCoord;
+
+// some const, tweak for best look
+const float sampleDist = 1.0;
+const float sampleStrength = 2.2;
+
+void main(void)
+{
+    // some sample positions
+    float samples[10] =
+    float[](-0.08,-0.05,-0.03,-0.02,-0.01,0.01,0.02,0.03,0.05,0.08);
+
+    // 0.5,0.5 is the center of the screen
+    // so substracting v_TexCoord from it will result in
+    // a vector pointing to the middle of the screen
+    vec2 dir = 0.5 - v_TexCoord;
+
+    // calculate the distance to the center of the screen
+    float dist = sqrt(dir.x*dir.x + dir.y*dir.y);
+
+    // normalize the direction (reuse the distance)
+    dir = dir/dist;
+
+    // this is the original colour of this fragment
+    // using only this would result in a nonblurred version
+    vec4 color = texture2D(u_Tex0,v_TexCoord);
+
+    vec4 sum = color;
+
+    // take 10 additional blur samples in the direction towards
+    // the center of the screen
+    for(int i = 0; i < 10; i++)
+        sum += texture2D(u_Tex0, v_TexCoord + dir * samples[i] * sampleDist);
+
+    // we have taken eleven samples
+    sum *= 1.0/11.0;
+
+    // weighten the blur effect with the distance to the
+    // center of the screen ( further out is blurred more)
+    float t = dist * sampleStrength;
+    t = clamp(t ,0.0,1.0); //0 &lt;= t &lt;= 1
+
+    //Blend the original color with the averaged pixels
+    gl_FragColor = mix(color, sum, t);
+} 

modules/game_shaders/shaders/sepia.frag

@@ -0,0 +1,16 @@
+uniform float u_Time;
+uniform sampler2D u_Tex0;
+varying vec2 v_TexCoord;
+
+vec4 sepia(vec4 color)
+{
+    return vec4(dot(color, vec4(.393, .769, .189, .0)),
+                dot(color, vec4(.349, .686, .168, .0)),
+                dot(color, vec4(.272, .534, .131, .0)),
+                1);
+}
+
+void main()
+{
+    gl_FragColor = sepia(texture2D(u_Tex0, v_TexCoord));
+}

modules/game_shaders/shaders/zomg.frag

@@ -0,0 +1,13 @@
+uniform sampler2D u_Tex0;
+uniform float u_Time;
+varying vec2 v_TexCoord;
+
+vec2 tibiaDir = vec2(1.0, 1.0);
+void main(void)
+{
+    vec2 dir = 0.5 - v_TexCoord;
+    float dist = sqrt(dir.x*dir.x + dir.y*dir.y);
+    float scale = 0.8 + dist*0.5;
+    vec4 color = texture2D(u_Tex0, -(dir*scale - 0.5));
+    gl_FragColor = color;
+}