Transparent objects are rendered with a random scatter pattern of depth information.

Expectation:
Depth maps should render the depth of transparent objects smoothly, or not at all

To recreate:
Create a semi-transparent object.
In iRay Render RGB and Depth maps

Attached:
1. Depth map of Object with transparency showing random pattern in window
2. Expected result with depth only
3. An alternative result which would also be acceptable (removing transparent objects from depth map.)