WorldPosition node output broken on mobile

Spoondog · May 13, 2016, 3:11am

The “WorldPosition (Excluding Material Offsets)” node outputs invalid coordinates in both the mobile previewer and on an iOS device. It appears to just output 0.0. Here is a picture of the example setup in 4.12:

And here is a [4.12 Example project][2].

To reproduce:

Drop the map and material into a blank 4.12 project.
Open WorldCoords_Bug.umap and run it in the mobile previewer or on an iOS device.
Note that the texture appears as a flat color.

Here is a comparison vs PC:

Note that if you use “WorldPosition (Including Material Offsets)”, it does output coordinates but they still don’t come out as expected on the device, compared to PC ([link][4]).

anonymous_user_6e7b421a · May 13, 2016, 2:35pm

Hello Spoondog,

Thank you for taking the time to write up this verbose bug report. Fortunately, this issue has been caught and reported already as UE-25532.

Once a fix has been made, it will be added to the list of known and fixed issues to the next upcoming major engine release or hotfix.

Thank you,

Spoondog · May 13, 2016, 8:08pm

Ok that’s good to know, thanks.

I need this feature for mapping custom drawn shadows to the world, and am intending to release on three platforms in about 2 months, so please consider this “community interest +1”

byteparrot · June 19, 2016, 4:41pm

Hey guys/girls,
is there any update on this issue?

We are currently working on a multiplatform project where the materials are applied to a random generated terrain using the absolute world position and because we are also using the material offset quite heavilly I need the position excluding the material offset but like Spoondog said the result is just a flat color on iOS.

So is there a workaround for getting the world pos excluding offset or do we have to wait until this is fixed? If we have to wait, when can we expect a fix for this?
Best regards, Joey

anonymous_user_6e7b421a · June 21, 2016, 4:10pm

The issue is still unresolved at the moment, but has been marked to be fixed for an upcoming major engine release. This is all the information I have at this moment.

anonymous_user_73fc2e7a · June 28, 2016, 10:13am

I am also experiencing this issue. Thanks for the update!
Community interest +1

anonymous_user_ff95e976 · October 26, 2017, 12:36pm

I am also interested in this issue.
The world position is also used in the fog of war, which causes problems on the mobile.