Editor camera zoom and pan; fix mouse input signals; tex editor to own file; fix grid drawing

source/shaders/box.glsl

@@ -5,7 +5,26 @@ out vec4 frag_color;
 
 uniform sampler2D diffuse_texture;
 
+float[] kernel = float[9](1.0/9.0,1.0/9.0,1.0/9.0,
+                          1.0/9.0,1.0/9.0,1.0/9.0,
+                          1.0/9.0,1.0/9.0,1.0/9.0);
+
 void main()
 {
   frag_color = texture(diffuse_texture, TexCoords);
+  return;
+  
+  vec2 res = vec2(640,360);
+  vec2 uv = gl_FragCoord.xy;
+  vec2 screen = textureSize(diffuse_texture,0);
+  vec3 acc = vec3(0);
+
+  for (int i = 0; i < 3; i++) {
+    for (int j = 0; j < 3; j++) {
+      vec2 realRes = uv + vec2(i-1,j-1);
+      acc += texture(diffuse_texture, realRes / res).rgb * kernel[i*3+j];
+    }
+  }
+  
+//  frag_color = vec4(acc,1);
 }

source/shaders/gridvert.glsl

@@ -12,11 +12,7 @@ uniform vec2 dimen;
 
 void main()
 {
-//    vec4 ipos = inverse(projection) * vec4(pos, 0.f, 1.f);
-    apos = pos * dimen;
-//    apos += offset;
-//    apos = pos + offset;
-
+    apos = ((pos*0.5)*dimen) + offset;
 
     gl_Position = vec4(pos, 0.f, 1.f);
 }