# DB Feb 22.2019 Bump doesn\`t work/work improperly **URL:** \ **Category:** Issues\ **Created:** [February 28, 2019, 6:11pm UTC](https://forums.chaos.com/t/db-feb-22-2019-bump-doesn-t-work-work-improperly/143391 "2019-02-28T18:11:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Horse\_1](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/horse_1/32/235533_2.png) [@Horse\_1](https://forums.chaos.com/u/Horse_1)\ **Post date:** [February 28, 2019, 6:11pm UTC](https://forums.chaos.com/t/db-feb-22-2019-bump-doesn-t-work-work-improperly/143391/1 "2019-02-28T18:11:05Z")
Please check the bump. With very high value effect is minimal look like bug and also displacement works the same way with different settings. ---
**Author:** ![tom\_grimes](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/tom_grimes/32/52842_2.png) [@tom\_grimes](https://forums.chaos.com/u/tom_grimes)\ **Post date:** [February 28, 2019, 6:25pm UTC](https://forums.chaos.com/t/db-feb-22-2019-bump-doesn-t-work-work-improperly/143391/2 "2019-02-28T18:25:12Z")
Can you share examples? Maybe even upload a scene, as we’d likely need to see what you are using as input to the bump (have you tried passing it through the CoronaBumpConverter?) Also, what version of Corona, what host software, and what OS would be good to know too 😃 ---
**Author:** ![Horse\_1](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/horse_1/32/235533_2.png) [@Horse\_1](https://forums.chaos.com/u/Horse_1)\ **Post date:** [February 28, 2019, 7:11pm UTC](https://forums.chaos.com/t/db-feb-22-2019-bump-doesn-t-work-work-improperly/143391/3 "2019-02-28T19:11:04Z")
I tried different bitmaps corona and deffault, coronaconverterbump, different geometry and both sides of normal. When i used v3.1 it was better. But i want to say that bump and displacement in corona were always pain, i used two month Fstorm and i can`t see what corona shows me, its awful. For now i want to figurout is it problem of daily build or something else