disable humangl backend if webgl 1.0 is detected

CHANGELOG.md

@@ -9,13 +9,13 @@
   
 ## Changelog
   
+### **HEAD -> main** 2021/11/08 mandic00@live.com
+
+
 ### **2.5.1** 2021/11/08 mandic00@live.com
 
 - new human.compare api
 - added links to release notes
-
-### **origin/main** 2021/11/06 mandic00@live.com
-
 - new frame change detection algorithm
 - add histogram equalization
 - implement wasm missing ops

src/tfjs/humangl.ts

@@ -61,6 +61,12 @@ export async function register(instance): Promise<void> {
     }
     try {
       config.gl = config.canvas?.getContext('webgl2', config.webGLattr) as WebGL2RenderingContext;
+      const glv2 = config.gl.getParameter(config.gl.VERSION).includes('2.0');
+      if (!glv2) {
+        log('override: using fallback webgl backend as webgl 2.0 is not detected');
+        instance.config.backend = 'webgl';
+        return;
+      }
       if (config.canvas) {
         config.canvas.addEventListener('webglcontextlost', async (e) => {
           log('error: humangl:', e.type);