Merge pull request #223 from cabanier/control-depth

add test to pause/resume depth

Author: cabanier

js/render/core/renderer.js

@@ -123,6 +123,8 @@ uniform sampler2DArray depthColor;
 uniform float rawValueToMeters;
 out vec4 color;
 in vec4 vWorldPosition;
+uniform bool sortDepth;
+
 uniform mat4 LEFT_DEPTH_PROJECTION_MATRIX, LEFT_DEPTH_VIEW_MATRIX, RIGHT_DEPTH_PROJECTION_MATRIX, RIGHT_DEPTH_VIEW_MATRIX;
 
 float Depth_GetCameraDepthInMillimeters(const sampler2DArray depthTexture,
@@ -205,6 +207,10 @@ void main() {
     return;
   }
 
+  if (!sortDepth) {
+    return;
+  }
+
   float assetDepthMm = gl_FragCoord.z * 1000.0 * rawValueToMeters;
 
   float occlusion = Depth_GetBlurredOcclusionAroundUV(depthColor, depthPositionHC, assetDepthMm);
@@ -962,6 +968,9 @@ export class Renderer {
               gl.uniform1ui(program.uniform.VIEW_ID, i);
             }
           }
+          if (depthData) {
+            gl.uniform1i(program.uniform.sortDepth, depthData.length > 0);
+          }
           if ((i == 0) && depthData && depthData.length) {
             // for older browser that don't support projectionMatrix and transform on the depth data
             gl.uniformMatrix4fv(program.uniform.LEFT_DEPTH_PROJECTION_MATRIX, false, views[0].projectionMatrix);

layers-samples/proj-multiview-occlusion.html

@@ -162,10 +162,17 @@
         + event.session.visibilityState);
     }
 
+    function onSelectStart(ev) {
+      let session = ev.frame.session;
+      session.depthActive ? session.pauseDepthSensing() : session.resumeDepthSensing();
+    }
+
     function onSessionStarted(session) {
       session.addEventListener('end', onSessionEnded);
       session.addEventListener('visibilitychange', onVisibilityChange);
 
+      session.addEventListener('selectstart', onSelectStart);
+
       initGL();
 
       if (session.isImmersive) {