diff --git a/zprite.lua b/zprite.lua
index 330fdb9..a150376 100644
--- a/zprite.lua
+++ b/zprite.lua
@@ -41,9 +41,9 @@ vec4 position(mat4 transform_projection, vec4 vertex_position)
   vec4 color = vec4(r, g, b, a) / vec4(256, 256, 256, 256);
 
   uint layer = bitfieldExtract(InstanceData.w, 0, 8);
-  uint offset_x = bitfieldExtract(InstanceData.w, 8, 4);
-  uint offset_y = bitfieldExtract(InstanceData.w, 12, 4);
-  vec2 offset = vec2(offset_x, offset_y) - vec2(8, 8);
+  uint offset_x = bitfieldExtract(InstanceData.w, 8, 8);
+  uint offset_y = bitfieldExtract(InstanceData.w, 16, 8);
+  vec2 offset = (vec2(offset_x, offset_y) / vec2(128, 128)) - vec2(1, 1);
 
   vec2 pixel_offset = offset * vec2(layer * HeightScale, layer * HeightScale) / love_ScreenSize.xy;
 
@@ -180,8 +180,8 @@ function zprite:put(x, y, quad, layer_count, color_map, offset_map)
 		local uv_scale = bit.bor(uv, scale)
 
 		local offset_x, offset_y = offset_map(i)
-		local offset_x_b = bit.lshift(bit.band(offset_x - 8, 0xF), 8)
-		local offset_y_b = bit.lshift(bit.band(offset_y - 8, 0xF), 12)
+		local offset_x_b = bit.lshift(bit.band((offset_x + 1) / 2 * 0xFF, 0xFF), 8)
+		local offset_y_b = bit.lshift(bit.band((offset_y + 1) / 2 * 0xFF, 0xFF), 16)
 
 		local layer = bit.band(i, 0xFF)