message: Fix VERTEX_DOMAIN_DEVICE world space
  this fixes the skybox's fog.
  this broke recently with
diff: @@ -144,7 +144,10 @@ vec4 computeWorldPosition() {
  return mulMat4x4Float3(transform, position);
  #elif defined(VERTEX_DOMAIN_DEVICE)
  mat4 transform = getWorldFromClipMatrix();
  - vec4 position = transform * getPosition();
  + vec4 p = getPosition();
  + // GL convention to inverted DX convention
  + p.z = p.z * -0.5 + 0.5;
  + vec4 position = transform * p;
  if (abs(position.w) < MEDIUMP_FLT_MIN) {
  position.w = position.w < 0.0 ? -MEDIUMP_FLT_MIN : MEDIUMP_FLT_MIN;
  }
  