VIEW_POS in shaders

In 423437 of version 1.2 the value of VIEW_POS in the shaders seems to be a zero vector or somehow not defined in such a way that it doesn't cause a crash. This is noticeable in end portals where the value is used. In 1.1 there is depth to the portal as is expected but in the 1.2 dev build there is no depth to it.

This was tested using the hlsl shaders. I don't have a PE dev build so I can't test the glsl shaders.