experimental map shaders

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;
+}