Drivers imagers and mtoa

[maxtarpini]

...

@thiago.ize 

@ashley.handscomb.retallack 

@Stephen.Blair 

Ehy Guys, sorry to bother but I have a problem with mtoa and drivers list I can't resolve alone because it works perfectly as it should on C4D for example while on Maya it looks it may need some ad-hoc metadata or naming convention or something that apparently I don't know while I cannot find a place with info about.

Problem1 :: mtoa does not read the name (node->name = "driver_romboExr") of a driver (node->node_type = AI_NODE_DRIVER) from the Arnold loader correctly.. it looks it does rely on the library name instead.

Problem2 :: when I have more than a single driver on the same lib.. first mtoa messes up with Common tab in Render Settings. Second, in places where I can add a driver (ie. AOVs render settings tab) it looks it gets just the last driver on the list with the above mentioned lib name.

Problem3 :: parameters in an imager ain't going down the imager list block like with your other imagers but on the attribute editor.

Here the loader :

    case ROMBO_RAWDRIVER_DENOISER:
        node->methods = (AtNodeMethods*)romboRawDriverDenoiserMtd;
        node->output_type = AI_TYPE_NONE;
        node->name = "driver_romboDenoiser";
        node->node_type = AI_NODE_DRIVER;
        break;
    case ROMBO_DRIVER_EXR:
        node->methods = (AtNodeMethods*)romboDriverEXRMtd;
        node->output_type = AI_TYPE_NONE;
        node->name = "driver_romboExr";
        node->node_type = AI_NODE_DRIVER;
        break;
    case ROMBO_IMAGER_TONEMAPPER:
        node->methods = (AtNodeMethods*)romboImagerTonemapperMtd;
        node->output_type = AI_TYPE_NONE;
        node->name = "imager_romboTonemapper";
        node->node_type = AI_NODE_IMAGER;
        break;

Can you help ? Thanks.
🖖

[maxtarpini]

Looks Maya doesn't like pointers params and I just realized I don't even need them because no callbacks involved.
Removing them I got the first part of Problem2 fixed.. no more Common tab mess up.

[maxtarpini]

For Imagers to have a proper UI in Maya we need to add a py script. Not sure about the naming there but one can just instanciate an imager, tweak a param there for example and then lookup the script editor to see what name has been given by Maya. There're example files in : mtoaarnold/maya2024/scripts/mtoa/ui/ae/ 

With that, UI params will gracefully fall into the imager UI block.

[ashley.handscomb.retallack · Accepted solution]

Hi Max,

Problem1:: Try setting the metadata "maya.translator" to the name of the translator you which to be displayed in the driver options menu

Problem2: are you able to share screen shots of what you are seeing?

Problem3: YUes you need to create a AE template inherting from the 

`ImagerBaseUI` class, see any of the Imager AE templates for an example

thanks

Ashley

[maxtarpini]

Thanks a lot Ashley that 'maya.translator' thing just did it.