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README.md

@@ -101,7 +101,7 @@ There is also the minified version
 import {
   vec3,
   mat4,
-} from 'https://wgpu-matrix.org/dist/2.x/wgpu-matrix.module.min.js';
+} from 'https://wgpu-matrix.org/dist/2.x/wgpu-matrix.module.js';
 
 // ... etc ...
 ```

docs/index.html

@@ -51,7 +51,7 @@ <h2>wgpu-matrix</h2></div>
 <pre><code class="language-js"><span class="hl-1">const</span><span class="hl-2"> </span><span class="hl-3">m</span><span class="hl-2"> = </span><span class="hl-4">mat4</span><span class="hl-2">.</span><span class="hl-5">create</span><span class="hl-2">();            </span><span class="hl-0">// m = new mat4</span><br/><span class="hl-4">mat4</span><span class="hl-2">.</span><span class="hl-5">identity</span><span class="hl-2">(</span><span class="hl-4">m</span><span class="hl-2">);                   </span><span class="hl-0">// m = identity</span><br/><span class="hl-4">mat4</span><span class="hl-2">.</span><span class="hl-5">translate</span><span class="hl-2">(</span><span class="hl-4">m</span><span class="hl-2">, [</span><span class="hl-8">1</span><span class="hl-2">, </span><span class="hl-8">2</span><span class="hl-2">, </span><span class="hl-8">3</span><span class="hl-2">], </span><span class="hl-4">m</span><span class="hl-2">);    </span><span class="hl-0">// m *= translation([1, 2, 3])</span><br/><span class="hl-4">mat4</span><span class="hl-2">.</span><span class="hl-5">rotateX</span><span class="hl-2">(</span><span class="hl-4">m</span><span class="hl-2">, </span><span class="hl-4">Math</span><span class="hl-2">.</span><span class="hl-3">PI</span><span class="hl-2"> * </span><span class="hl-8">0.5</span><span class="hl-2">, </span><span class="hl-4">m</span><span class="hl-2">);  </span><span class="hl-0">// m *= rotationX(Math.PI * 0.5)</span><br/><span class="hl-4">mat4</span><span class="hl-2">.</span><span class="hl-5">scale</span><span class="hl-2">(</span><span class="hl-4">m</span><span class="hl-2">, [</span><span class="hl-8">1</span><span class="hl-2">, </span><span class="hl-8">2</span><span class="hl-2">, </span><span class="hl-8">3</span><span class="hl-2">], </span><span class="hl-4">m</span><span class="hl-2">);        </span><span class="hl-0">// m *= scaling([1, 2, 3])</span>
 </code><button>Copy</button></pre>
 <p>There is also the minified version</p>
-<pre><code class="language-js"><span class="hl-6">import</span><span class="hl-2"> {</span><br/><span class="hl-2">  </span><span class="hl-4">vec3</span><span class="hl-2">,</span><br/><span class="hl-2">  </span><span class="hl-4">mat4</span><span class="hl-2">,</span><br/><span class="hl-2">} </span><span class="hl-6">from</span><span class="hl-2"> </span><span class="hl-7">&#39;https://wgpu-matrix.org/dist/2.x/wgpu-matrix.module.min.js&#39;</span><span class="hl-2">;</span><br/><br/><span class="hl-0">// ... etc ...</span>
+<pre><code class="language-js"><span class="hl-6">import</span><span class="hl-2"> {</span><br/><span class="hl-2">  </span><span class="hl-4">vec3</span><span class="hl-2">,</span><br/><span class="hl-2">  </span><span class="hl-4">mat4</span><span class="hl-2">,</span><br/><span class="hl-2">} </span><span class="hl-6">from</span><span class="hl-2"> </span><span class="hl-7">&#39;https://wgpu-matrix.org/dist/2.x/wgpu-matrix.module.js&#39;</span><span class="hl-2">;</span><br/><br/><span class="hl-0">// ... etc ...</span>
 </code><button>Copy</button></pre>
 <p>or via npm</p>
 <pre><code class="language-sh"><span class="hl-5">npm</span><span class="hl-2"> </span><span class="hl-7">install</span><span class="hl-2"> </span><span class="hl-1">--save</span><span class="hl-2"> </span><span class="hl-7">wgpu-matrix</span>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "wgpu-matrix",
-  "version": "2.8.0",
+  "version": "2.8.1",
   "description": "fast matrix math library for WebGPU",
   "main": "dist/2.x/wgpu-matrix.module.js",
   "module": "dist/2.x/wgpu-matrix.module.js",

src/vec2-impl.ts

@@ -158,8 +158,8 @@ export function addScaled(a: Vec2, b: Vec2, scale: number, dst?: Vec2) {
 export function angle(a: Vec2, b: Vec2): number {
   const ax = a[0];
   const ay = a[1];
-  const bx = a[0];
-  const by = a[1];
+  const bx = b[0];
+  const by = b[1];
   const mag1 = Math.sqrt(ax * ax + ay * ay);
   const mag2 = Math.sqrt(bx * bx + by * by);
   const mag = mag1 * mag2;

src/vec3-impl.ts

@@ -168,9 +168,9 @@ export function angle(a: Vec3, b: Vec3): number {
   const ax = a[0];
   const ay = a[1];
   const az = a[2];
-  const bx = a[0];
-  const by = a[1];
-  const bz = a[2];
+  const bx = b[0];
+  const by = b[1];
+  const bz = b[2];
   const mag1 = Math.sqrt(ax * ax + ay * ay + az * az);
   const mag2 = Math.sqrt(bx * bx + by * by + bz * bz);
   const mag = mag1 * mag2;

test/tests/vec2-test.js

@@ -102,7 +102,7 @@ function check(Type) {
         { a: [1, 0], b: [ 0, 1], expected: Math.PI / 2, },
         { a: [1, 0], b: [-1, 0], expected: Math.PI, },
         { a: [1, 0], b: [ 1, 0], expected: 0, },
-        { a: [1, 2], b: [ 4, 5], expected: 0.225726 },
+        { a: [1, 2], b: [ 4, 5], expected: 0.2110933, },
         { a: [1, 0], b: [ 0, Number.POSITIVE_INFINITY], expected: Math.PI / 2, },
       ];
       for (const {a, b, expected} of tests) {

test/tests/vec3-test.js

@@ -102,7 +102,7 @@ function check(Type) {
         { a: [1, 0, 0], b: [ 0, 1, 0], expected: Math.PI / 2, },
         { a: [1, 0, 0], b: [-1, 0, 0], expected: Math.PI, },
         { a: [1, 0, 0], b: [ 1, 0, 0], expected: 0, },
-        { a: [1, 2, 3], b: [ 4, 5, 6], expected: 0.225726 },
+        { a: [1, 2, 3], b: [ 4, 5, 6], expected: 0.2257261 },
         { a: [1, 0, 0], b: [ 0, Number.POSITIVE_INFINITY, 0], expected: Math.PI / 2, },
       ];
       for (const {a, b, expected} of tests) {