diff --git a/demo2.cpp b/demo2.cpp
index 552415f..3a1354b 100644
--- a/demo2.cpp
+++ b/demo2.cpp
@@ -22,9 +22,8 @@
 
 //#define RENDER_COMPLEX
   /* ^ Turns on rendering using a more precise but slower algorithm. This can
-       be seen at less shaky head bobbing when moving. However the latter
-       algorithm doesn't support some features (rooling doors, floor textures,
-       ...). */
+       be seen at less shaky head bobbing when moving. However it doesn't
+       support many other features, so the result actually looks worse. */
 
 //#define NO_TEXTURES
   /* ^ Turns off textures and only uses colors, which increases FPS. */
@@ -927,7 +926,7 @@ int16_t intensity = 0;
     if (pixel->isFloor)
     {
       if (pixel->texCoords.y > 3 * RCL_UNITS_PER_SQUARE) // leave astrip of untextured floor
-        color = pixel->depth > RCL_UNITS_PER_SQUARE * 5 ?
+        color = pixel->depth > (RCL_UNITS_PER_SQUARE * 6 + RCL_UNITS_PER_SQUARE / 2) ?
             textureAverageColors[1] : 
             sampleImage(textures[1],pixel->texCoords.x / FLOOR_TEXTURE_SCALE,pixel->texCoords.y / FLOOR_TEXTURE_SCALE);
       else
@@ -953,9 +952,9 @@ int16_t intensity = 0;
 
 #ifndef NO_MIRROR
     intensity =  pixel->isFloor ?
-      -1 * (pixel->depth - mirror * 128) / RCL_UNITS_PER_SQUARE : 0;
+      2 - (pixel->depth - mirror * 128) / RCL_UNITS_PER_SQUARE : 0;
 #else
-    intensity = -1 * pixel->depth / (RCL_UNITS_PER_SQUARE * 2);
+    intensity = 2 - pixel->depth / (RCL_UNITS_PER_SQUARE * 2);
 #endif
 
     color = addIntensity(color,intensity);
@@ -1065,7 +1064,9 @@ int main()
   cFloor = rgbToIndex(3,3,2);
   cCeiling = rgbToIndex(3,2,0);
 
-  player.setPositionSquare(6,5);
+  player.setPositionSquare(9,1);
+//player.mCamera.position.y -= RCL_UNITS_PER_SQUARE / 2;
+//player.mCamera.direction = -50;
   player.mCamera.height = RCL_CAMERA_COLL_HEIGHT_BELOW;
 
   player.mCamera.resolution.y = RESOLUTION_Y;
diff --git a/general.hpp b/general.hpp
index a5502a3..62bbeb8 100644
--- a/general.hpp
+++ b/general.hpp
@@ -174,6 +174,16 @@ inline uint8_t addRGB(uint8_t color, int16_t red, int16_t green, int16_t blue)
   return rgbToIndex(r,g,b);
 }
 
+/**
+  Inits a color gradient from darkest (0, -7 intensity) to brightest
+  (14, +7 intensity). Index 7 will have the base color.
+*/
+void initGradient(unsigned char dest[15], unsigned char baseColor)
+{
+  for (int8_t i = 0; i < 15; ++i)
+    dest[i] = addIntensity(baseColor, i - 7);
+}
+
 /**
   Samples an image by normalized coordinates - each coordinate is in range
   0 to RCL_UNITS_PER_SQUARE (from raycastlib).