Fixed formulas

Author: cabanier

css-color/Overview.bs

@@ -2910,15 +2910,15 @@ function XYZ_to_lin_sRGB(XYZ) {
 	return math.multiply(M, XYZ).valueOf();
 }
 
-// DCI P3-related functions
+// P3D65-related functions
 
 
 function lin_P3(RGB) {
-	// convert an array of DCI P3 RGB values in the range 0.0 - 1.0
+	// convert an array of P3D65 RGB values in the range 0.0 - 1.0
 	// to linear light (un-companded) form.
 
 	return RGB.map(function (val) {
-		return Math.pow(val, 2.6);
+		return Math.pow(val, 2.4);
 	});
 }
 
@@ -2927,7 +2927,7 @@ function gam_P3(RGB) {
 	// to gamma corrected form
 
 	return RGB.map(function (val) {
-			return Math.pow(val, 1/2.6);
+			return Math.pow(val, 1/2.4);
 	});
 }
 

css-color/Overview.html

@@ -4708,15 +4708,15 @@ <h2 class="heading settled" data-level="17" id="color-conversion-code"><span cla
   <span class="k">return</span> math<span class="p">.</span>multiply<span class="p">(</span>M<span class="p">,</span> XYZ<span class="p">)</span><span class="p">.</span>valueOf<span class="p">(</span><span class="p">)</span><span class="p">;</span>
 <span class="p">}</span>
 
-<span class="c1">// DCI P3-related functions
+<span class="c1">// P3D65-related functions
 </span>
 
 <span class="kd">function</span> lin_P3<span class="p">(</span>RGB<span class="p">)</span> <span class="p">{</span>
-  <span class="c1">// convert an array of DCI P3 RGB values in the range 0.0 - 1.0
+  <span class="c1">// convert an array of P3D65 RGB values in the range 0.0 - 1.0
 </span>  <span class="c1">// to linear light (un-companded) form.
 </span>
   <span class="k">return</span> RGB<span class="p">.</span>map<span class="p">(</span><span class="kd">function</span> <span class="p">(</span>val<span class="p">)</span> <span class="p">{</span>
-    <span class="k">return</span> Math<span class="p">.</span>pow<span class="p">(</span>val<span class="p">,</span> <span class="mf">2.6</span><span class="p">)</span><span class="p">;</span>
+    <span class="k">return</span> Math<span class="p">.</span>pow<span class="p">(</span>val<span class="p">,</span> <span class="mf">2.4</span><span class="p">)</span><span class="p">;</span>
   <span class="p">}</span><span class="p">)</span><span class="p">;</span>
 <span class="p">}</span>
 
@@ -4725,7 +4725,7 @@ <h2 class="heading settled" data-level="17" id="color-conversion-code"><span cla
 </span>  <span class="c1">// to gamma corrected form
 </span>
   <span class="k">return</span> RGB<span class="p">.</span>map<span class="p">(</span><span class="kd">function</span> <span class="p">(</span>val<span class="p">)</span> <span class="p">{</span>
-      <span class="k">return</span> Math<span class="p">.</span>pow<span class="p">(</span>val<span class="p">,</span> <span class="mi">1</span><span class="o">/</span><span class="mf">2.6</span><span class="p">)</span><span class="p">;</span>
+      <span class="k">return</span> Math<span class="p">.</span>pow<span class="p">(</span>val<span class="p">,</span> <span class="mi">1</span><span class="o">/</span><span class="mf">2.4</span><span class="p">)</span><span class="p">;</span>
   <span class="p">}</span><span class="p">)</span><span class="p">;</span>
 <span class="p">}</span>