NEERCS: added missing remanence.lolfx

neercs/video/remanence.lolfx

@@ -0,0 +1,30 @@
+[vert.glsl]
+
+#version 120
+
+void main()
+{
+    gl_Position = gl_Vertex;
+    gl_TexCoord[0] = gl_MultiTexCoord0;
+}
+
+[frag.glsl]
+
+#version 120
+
+uniform sampler2D source;
+uniform sampler2D buffer;
+uniform vec2 mix;
+
+void main(void)
+{
+    vec4 old_color = texture2D(buffer, gl_TexCoord[0].xy);
+    vec4 new_color = texture2D(source, gl_TexCoord[0].xy);
+
+    /* The old way */
+    //gl_FragColor = new_color * mix.x + old_color * mix.y;
+
+    /* The new way: if new_color > old_color we want faster updates */
+    gl_FragColor = max(new_color, new_color * mix.x + old_color * mix.y);
+}
+