Clear layer framebuffer to alpha zero. Fixes #56.

Avaer Kazmer · Avaer Kazmer · commit e274b5352551 · 2019-09-07T19:00:43.000-04:00
diff --git a/src/xr-scene.js b/src/xr-scene.js
@@ -95,7 +95,7 @@ class XRScene extends HTMLElement {
         win.clear = () => {
           if (win.ctx) {
             win.ctx.binding = null;
-            win.ctx.clearColor(0, 0, 0, 1);
+            win.ctx.clearColor(0, 0, 0, 0);
             win.ctx.clear(win.ctx.COLOR_BUFFER_BIT|win.ctx.STENCIL_BUFFER_BIT|win.ctx.DEPTH_BUFFER_BIT);
           }
         };

Original file line number	Diff line number	Diff line change
`@@ -95,7 +95,7 @@ class XRScene extends HTMLElement {`
`95`	`95`	`win.clear = () => {`
`96`	`96`	`if (win.ctx) {`
`97`	`97`	`win.ctx.binding = null;`
`98`		`- win.ctx.clearColor(0, 0, 0, 1);`
	`98`	`+ win.ctx.clearColor(0, 0, 0, 0);`
`99`	`99`	`win.ctx.clear(win.ctx.COLOR_BUFFER_BIT\|win.ctx.STENCIL_BUFFER_BIT\|win.ctx.DEPTH_BUFFER_BIT);`
`100`	`100`	`}`
`101`	`101`	`};`