How could I create a circular bordering around a rotating minimap, so that the map is only seen inside the border, and outside of the border is transparent.

jechli_1 · September 11, 2014, 6:31pm

Right now I have a minimap that I’ve drawn on the HUD with DrawTexture, which displays it as a square given the width-height dimensions. It also rotates, so it looks like spinning square depending on the player’s movements. However, I want to place a circular border around the minimap, so that the minimap and its rotations are contained within that bordering, and the outside of the bordering should be transparent to the gameplay.

anonymous_user_b9532c9a · September 11, 2014, 7:13pm

Hi ,

You will want to create a texture mask to mask out the outside of the border while leaving the border and the inner contents in tact. For more information on location based opacity, have a look here: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums so you can get an idea for how to do this.

jechli_1 · September 12, 2014, 6:03pm

Hi , thanks for the link! I have a better idea of how to do it now but I’m still not sure how I can mask it out in the hud blueprints. I can’t attach the mask to the map texture itself because i am only showing a portion of it, dynamically, so I will need an overlaying mask. It doesn’t really make much sense to me at the same time, because I need a transparent bordering mask to overlay the map, which will show the map under it…

Lovecraft_K · September 15, 2014, 8:58pm

Hey -

Instead of a Draw Texture, use a Draw Material and this setup with your material placed where my texture sample is:

Thank You and Let me know if this doesn’t work for you -

anonymous_user_9d771975 · February 19, 2017, 4:43am

anonymous_user_dceb25d5 · May 26, 2017, 7:42pm

Thanks everyone! got it working perfectly with Eric’s BP and then just modified that to my preferences like _eni did but with my own values.

Mauxx91 · March 28, 2018, 8:05pm

Hi,
you could use this asset I’ve found on the store to create rounded borders (also complete circular) around your minimap texture!

Bye