Layer states restoration failure

Rhino
,
1

Hi,

One of our clients has had trouble while restoring his layer states. In the attached scene (see below), you can observe that restoration of layer state “P4-1” breaks the material assignment.

layer_states_panel
layer_states_panel416×169 6.82 KB

To see it, restore “P4-1”, then restore “ALLL”. You will see that the texture assigned to a surface has changed and that the material “NewOcean” appears twice.

duplicated_material
duplicated_material1412×445 298 KB

This issue is at the origin of a bug of our exporter plug-in for our renderer, that restore each layer state if required, so that’s a problem for us too.

Please find the scene here: google drive link

Bets regards,

Guillaume

2

Hi Guillaume,

Thanks for reporting and for the file. This is now filed as RH-97016 LayerStateManager: restoring layer states duplicates render material and changes texture assignment.

From an initial look it appears the layer state restore re-applies materials by table index rather than id, which is why restoring “P4-1” then “ALLL” changes the texture and duplicates NewOcean. We’ll take a look.

3

Thank you for your reply. This is also my intuition.

4

RH-97016 is fixed in Rhino BETA