diff --git a/demo/draw.html b/demo/draw.html
index fe77ef1..c6bbb36 100644
--- a/demo/draw.html
+++ b/demo/draw.html
@@ -37,7 +37,7 @@
 
 addressPoints = addressPoints.map(function (p) { return [p[0], p[1]]; });
 
-var heat = L.heatLayer(addressPoints).addTo(map),
+var heat = L.heatLayer(addressPoints, {relative: true}).addTo(map),
     draw = true;
 
 map.on({
diff --git a/demo/index.html b/demo/index.html
index d070be7..1d35412 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -37,7 +37,7 @@
 
 addressPoints = addressPoints.map(function (p) { return [p[0], p[1]]; });
 
-var heat = L.heatLayer(addressPoints).addTo(map);
+var heat = L.heatLayer(addressPoints, {relative: true}).addTo(map);
 
 </script>
 </body>
diff --git a/dist/leaflet-heat.js b/dist/leaflet-heat.js
index aa8031a..b2dde86 100644
--- a/dist/leaflet-heat.js
+++ b/dist/leaflet-heat.js
@@ -1,11 +1 @@
-/*
- (c) 2014, Vladimir Agafonkin
- simpleheat, a tiny JavaScript library for drawing heatmaps with Canvas
- https://github.com/mourner/simpleheat
-*/
-!function(){"use strict";function t(i){return this instanceof t?(this._canvas=i="string"==typeof i?document.getElementById(i):i,this._ctx=i.getContext("2d"),this._width=i.width,this._height=i.height,this._max=1,void this.clear()):new t(i)}t.prototype={defaultRadius:25,defaultGradient:{.4:"blue",.6:"cyan",.7:"lime",.8:"yellow",1:"red"},data:function(t,i){return this._data=t,this},max:function(t){return this._max=t,this},add:function(t){return this._data.push(t),this},clear:function(){return this._data=[],this},radius:function(t,i){i=i||15;var a=this._circle=document.createElement("canvas"),s=a.getContext("2d"),e=this._r=t+i;return a.width=a.height=2*e,s.shadowOffsetX=s.shadowOffsetY=200,s.shadowBlur=i,s.shadowColor="black",s.beginPath(),s.arc(e-200,e-200,t,0,2*Math.PI,!0),s.closePath(),s.fill(),this},gradient:function(t){var i=document.createElement("canvas"),a=i.getContext("2d"),s=a.createLinearGradient(0,0,0,256);i.width=1,i.height=256;for(var e in t)s.addColorStop(e,t[e]);return a.fillStyle=s,a.fillRect(0,0,1,256),this._grad=a.getImageData(0,0,1,256).data,this},draw:function(t){this._circle||this.radius(this.defaultRadius),this._grad||this.gradient(this.defaultGradient);var i=this._ctx;i.clearRect(0,0,this._width,this._height);for(var a,s=0,e=this._data.length;e>s;s++)a=this._data[s],i.globalAlpha=Math.max(a[2]/this._max,t||.05),i.drawImage(this._circle,a[0]-this._r,a[1]-this._r);var n=i.getImageData(0,0,this._width,this._height);return this._colorize(n.data,this._grad),i.putImageData(n,0,0),this},_colorize:function(t,i){for(var a,s=3,e=t.length;e>s;s+=4)a=4*t[s],a&&(t[s-3]=i[a],t[s-2]=i[a+1],t[s-1]=i[a+2])}},window.simpleheat=t}(),/*
- (c) 2014, Vladimir Agafonkin
- Leaflet.heat, a tiny and fast heatmap plugin for Leaflet.
- https://github.com/Leaflet/Leaflet.heat
-*/
-L.HeatLayer=(L.Layer?L.Layer:L.Class).extend({initialize:function(t,i){this._latlngs=t,L.setOptions(this,i)},setLatLngs:function(t){return this._latlngs=t,this.redraw()},addLatLng:function(t){return this._latlngs.push(t),this.redraw()},setOptions:function(t){return L.setOptions(this,t),this._heat&&this._updateOptions(),this.redraw()},redraw:function(){return!this._heat||this._frame||this._map._animating||(this._frame=L.Util.requestAnimFrame(this._redraw,this)),this},onAdd:function(t){this._map=t,this._canvas||this._initCanvas(),t._panes.overlayPane.appendChild(this._canvas),t.on("moveend",this._reset,this),t.options.zoomAnimation&&L.Browser.any3d&&t.on("zoomanim",this._animateZoom,this),this._reset()},onRemove:function(t){t.getPanes().overlayPane.removeChild(this._canvas),t.off("moveend",this._reset,this),t.options.zoomAnimation&&t.off("zoomanim",this._animateZoom,this)},addTo:function(t){return t.addLayer(this),this},_initCanvas:function(){var t=this._canvas=L.DomUtil.create("canvas","leaflet-heatmap-layer leaflet-layer"),i=L.DomUtil.testProp(["transformOrigin","WebkitTransformOrigin","msTransformOrigin"]);t.style[i]="50% 50%";var a=this._map.getSize();t.width=a.x,t.height=a.y;var s=this._map.options.zoomAnimation&&L.Browser.any3d;L.DomUtil.addClass(t,"leaflet-zoom-"+(s?"animated":"hide")),this._heat=simpleheat(t),this._updateOptions()},_updateOptions:function(){this._heat.radius(this.options.radius||this._heat.defaultRadius,this.options.blur),this.options.gradient&&this._heat.gradient(this.options.gradient),this.options.max&&this._heat.max(this.options.max)},_reset:function(){var t=this._map.containerPointToLayerPoint([0,0]);L.DomUtil.setPosition(this._canvas,t);var i=this._map.getSize();this._heat._width!==i.x&&(this._canvas.width=this._heat._width=i.x),this._heat._height!==i.y&&(this._canvas.height=this._heat._height=i.y),this._redraw()},_redraw:function(){var t,i,a,s,e,n,h,o,r,d=[],_=this._heat._r,l=this._map.getSize(),m=new L.Bounds(L.point([-_,-_]),l.add([_,_])),c=void 0===this.options.max?1:this.options.max,u=void 0===this.options.maxZoom?this._map.getMaxZoom():this.options.maxZoom,f=1/Math.pow(2,Math.max(0,Math.min(u-this._map.getZoom(),12))),g=_/2,p=[],v=this._map._getMapPanePos(),w=v.x%g,y=v.y%g;for(t=0,i=this._latlngs.length;i>t;t++)if(a=this._map.latLngToContainerPoint(this._latlngs[t]),m.contains(a)){e=Math.floor((a.x-w)/g)+2,n=Math.floor((a.y-y)/g)+2;var x=void 0!==this._latlngs[t].alt?this._latlngs[t].alt:void 0!==this._latlngs[t][2]?+this._latlngs[t][2]:1;r=x*f,p[n]=p[n]||[],s=p[n][e],s?(s[0]=(s[0]*s[2]+a.x*r)/(s[2]+r),s[1]=(s[1]*s[2]+a.y*r)/(s[2]+r),s[2]+=r):p[n][e]=[a.x,a.y,r]}for(t=0,i=p.length;i>t;t++)if(p[t])for(h=0,o=p[t].length;o>h;h++)s=p[t][h],s&&d.push([Math.round(s[0]),Math.round(s[1]),Math.min(s[2],c)]);this._heat.data(d).draw(this.options.minOpacity),this._frame=null},_animateZoom:function(t){var i=this._map.getZoomScale(t.zoom),a=this._map._getCenterOffset(t.center)._multiplyBy(-i).subtract(this._map._getMapPanePos());L.DomUtil.setTransform?L.DomUtil.setTransform(this._canvas,a,i):this._canvas.style[L.DomUtil.TRANSFORM]=L.DomUtil.getTranslateString(a)+" scale("+i+")"}}),L.heatLayer=function(t,i){return new L.HeatLayer(t,i)};
\ No newline at end of file
+"use strict";!function(){function t(i){return this instanceof t?(this._canvas=i="string"==typeof i?document.getElementById(i):i,this._ctx=i.getContext("2d"),this._width=i.width,this._height=i.height,this._max=1,void this.clear()):new t(i)}t.prototype={defaultRadius:25,defaultGradient:{.4:"blue",.6:"cyan",.7:"lime",.8:"yellow",1:"red"},data:function(t,i){return this._data=t,this},max:function(t){return this._max=t,this},add:function(t){return this._data.push(t),this},clear:function(){return this._data=[],this},radius:function(t,i){i=i||15;var a=this._circle=document.createElement("canvas"),s=a.getContext("2d"),e=this._r=t+i;return a.width=a.height=2*e,s.shadowOffsetX=s.shadowOffsetY=200,s.shadowBlur=i,s.shadowColor="black",s.beginPath(),s.arc(e-200,e-200,t,0,2*Math.PI,!0),s.closePath(),s.fill(),this},gradient:function(t){var i=document.createElement("canvas"),a=i.getContext("2d"),s=a.createLinearGradient(0,0,0,256);i.width=1,i.height=256;for(var e in t)s.addColorStop(e,t[e]);return a.fillStyle=s,a.fillRect(0,0,1,256),this._grad=a.getImageData(0,0,1,256).data,this},draw:function(t){this._circle||this.radius(this.defaultRadius),this._grad||this.gradient(this.defaultGradient);var i=this._ctx;i.clearRect(0,0,this._width,this._height);for(var a,s=0,e=this._data.length;e>s;s++)a=this._data[s],i.globalAlpha=Math.max(a[2]/this._max,t||.05),i.drawImage(this._circle,a[0]-this._r,a[1]-this._r);var n=i.getImageData(0,0,this._width,this._height);return this._colorize(n.data,this._grad),i.putImageData(n,0,0),this},_colorize:function(t,i){for(var a,s=3,e=t.length;e>s;s+=4)a=4*t[s],a&&(t[s-3]=i[a],t[s-2]=i[a+1],t[s-1]=i[a+2])}},window.simpleheat=t}(),L.HeatLayer=(L.Layer?L.Layer:L.Class).extend({initialize:function(t,i){this._latlngs=t,L.setOptions(this,i)},setLatLngs:function(t){return this._latlngs=t,this.redraw()},addLatLng:function(t){return this._latlngs.push(t),this.redraw()},setOptions:function(t){return L.setOptions(this,t),this._heat&&this._updateOptions(),this.redraw()},redraw:function(){return!this._heat||this._frame||this._map._animating||(this._frame=L.Util.requestAnimFrame(this._redraw,this)),this},onAdd:function(t){this._map=t,this._canvas||this._initCanvas(),t._panes.overlayPane.appendChild(this._canvas),t.on("moveend",this._reset,this),t.options.zoomAnimation&&L.Browser.any3d&&t.on("zoomanim",this._animateZoom,this),this._reset()},onRemove:function(t){t.getPanes().overlayPane.removeChild(this._canvas),t.off("moveend",this._reset,this),t.options.zoomAnimation&&t.off("zoomanim",this._animateZoom,this)},addTo:function(t){return t.addLayer(this),this},_initCanvas:function(){var t=this._canvas=L.DomUtil.create("canvas","leaflet-heatmap-layer leaflet-layer"),i=L.DomUtil.testProp(["transformOrigin","WebkitTransformOrigin","msTransformOrigin"]);t.style[i]="50% 50%";var a=this._map.getSize();t.width=a.x,t.height=a.y;var s=this._map.options.zoomAnimation&&L.Browser.any3d;L.DomUtil.addClass(t,"leaflet-zoom-"+(s?"animated":"hide")),this._heat=simpleheat(t),this._updateOptions()},_updateOptions:function(){this._heat.radius(this.options.radius||this._heat.defaultRadius,this.options.blur),this.options.gradient&&this._heat.gradient(this.options.gradient),this.options.max&&this._heat.max(this.options.max)},_reset:function(){var t=this._map.containerPointToLayerPoint([0,0]);L.DomUtil.setPosition(this._canvas,t);var i=this._map.getSize();this._heat._width!==i.x&&(this._canvas.width=this._heat._width=i.x),this._heat._height!==i.y&&(this._canvas.height=this._heat._height=i.y),this._redraw()},_redraw:function(){if(this._map){var t,i,a,s,e,n,h,o,r,_,d=[],l=this._heat._r,m=this._map.getSize(),c=new L.Bounds(L.point([-l,-l]),m.add([l,l])),u=void 0===this.options.max?1:this.options.max,f=void 0===this.options.maxZoom?this._map.getMaxZoom():this.options.maxZoom,g=1/Math.pow(4,Math.max(0,Math.min(f-this._map.getZoom(),12))),p=l/2,v=[],w=this._map._getMapPanePos(),y=w.x%p,x=w.y%p,P=!1;for(t=0,i=this._latlngs.length;i>t;t++)if(a=this._map.latLngToContainerPoint(this._latlngs[t]),c.contains(a)){e=Math.floor((a.x-y)/p)+2,n=Math.floor((a.y-x)/p)+2;var M=void 0!==this._latlngs[t].alt?this._latlngs[t].alt:void 0!==this._latlngs[t][2]?+this._latlngs[t][2]:1;r=M*g,v[n]=v[n]||[],s=v[n][e],s?(s[0]=(s[0]*s[2]+a.x*r)/(s[2]+r),s[1]=(s[1]*s[2]+a.y*r)/(s[2]+r),s[2]+=r,_=s[2]):(_=r,v[n][e]=[a.x,a.y,r]),this.options.relative&&(P===!1?P=_:_>P&&(P=_))}for(t=0,i=v.length;i>t;t++)if(v[t])for(h=0,o=v[t].length;o>h;h++)s=v[t][h],s&&d.push([Math.round(s[0]),Math.round(s[1]),Math.min(s[2],u)]);this.options.relative&&P!==!1&&this._heat.max(P),this._heat.data(d).draw(this.options.minOpacity),this._frame=null}},_animateZoom:function(t){var i=this._map.getZoomScale(t.zoom),a=this._map._getCenterOffset(t.center)._multiplyBy(-i).subtract(this._map._getMapPanePos());L.DomUtil.setTransform?L.DomUtil.setTransform(this._canvas,a,i):this._canvas.style[L.DomUtil.TRANSFORM]=L.DomUtil.getTranslateString(a)+" scale("+i+")"}}),L.heatLayer=function(t,i){return new L.HeatLayer(t,i)};
\ No newline at end of file
diff --git a/src/HeatLayer.js b/src/HeatLayer.js
index b954a4e..41d369f 100644
--- a/src/HeatLayer.js
+++ b/src/HeatLayer.js
@@ -130,7 +130,7 @@ L.HeatLayer = (L.Layer ? L.Layer : L.Class).extend({
 
             max = this.options.max === undefined ? 1 : this.options.max,
             maxZoom = this.options.maxZoom === undefined ? this._map.getMaxZoom() : this.options.maxZoom,
-            v = 1 / Math.pow(2, Math.max(0, Math.min(maxZoom - this._map.getZoom(), 12))),
+            v = 1 / Math.pow(4, Math.max(0, Math.min(maxZoom - this._map.getZoom(), 12))),
             cellSize = r / 2,
             grid = [],
             panePos = this._map._getMapPanePos(),
@@ -139,6 +139,7 @@ L.HeatLayer = (L.Layer ? L.Layer : L.Class).extend({
             i, len, p, cell, x, y, j, len2, k;
 
         // console.time('process');
+        var localMax = false, localValue;
         for (i = 0, len = this._latlngs.length; i < len; i++) {
             p = this._map.latLngToContainerPoint(this._latlngs[i]);
             if (bounds.contains(p)) {
@@ -154,12 +155,22 @@ L.HeatLayer = (L.Layer ? L.Layer : L.Class).extend({
                 cell = grid[y][x];
 
                 if (!cell) {
+                    localValue = k;
                     grid[y][x] = [p.x, p.y, k];
 
                 } else {
                     cell[0] = (cell[0] * cell[2] + p.x * k) / (cell[2] + k); // x
                     cell[1] = (cell[1] * cell[2] + p.y * k) / (cell[2] + k); // y
                     cell[2] += k; // cumulated intensity value
+                    localValue = cell[2];
+                }
+                if (this.options.relative) {
+                    if (localMax === false) {
+                        localMax = localValue;
+                    }
+                    else if (localMax < localValue) {
+                        localMax = localValue;
+                    }
                 }
             }
         }
@@ -181,6 +192,9 @@ L.HeatLayer = (L.Layer ? L.Layer : L.Class).extend({
         // console.timeEnd('process');
 
         // console.time('draw ' + data.length);
+        if (this.options.relative && localMax !== false) {
+            this._heat.max(localMax);
+        }
         this._heat.data(data).draw(this.options.minOpacity);
         // console.timeEnd('draw ' + data.length);