How do I access Redshift AOV settings from Python?

jcooper

So once I have the BasicVideoPost object for the Redshift settings:

rdata = doc.GetActiveRenderData()
vpost = rdata.GetFirstVideoPost()
assert vpost.GetType() == 1036219

How do I access the data highlighted in red in the gui screencap below?

Querying the REDSHIFT_RENDERER_AOV_COUNT:

num_aovs = vpost[c4d.REDSHIFT_RENDERER_AOV_COUNT]

yields 3, as I would expect, but from there I don't know how to get/set the settings data for any of those three AOVs.

Update: I noticed relevant constants in vprsrenderer.h called REDSHIFT_RENDERER_AOV_LAYER_FIRST and REDSHIFT_RENDERER_AOV_LAYER_LAST, but trying to access any data using these results in a traceback:

aov_layer = vpost[c4d.REDSHIFT_RENDERER_AOV_LAYER_FIRST]

Traceback (most recent call last):
  File "console", line 1, in <module>
AttributeError: Parameter value not accessible (object unknown in Python)

r_gigante

Hi @jcooper, thanks for reaching out us

With regard to your question, the code below should help you getting things sorted out

import c4d
import c4d.documents
import redshift

def PrintAOVs(vpRS):
    aovs = redshift.RendererGetAOVs(vpRS)
    for aov in aovs:
        print("-----------------------------------------------------------")
        print("Name                  :%s" % aov.GetParameter(c4d.REDSHIFT_AOV_NAME))
        print("Type                  :%d" % aov.GetParameter(c4d.REDSHIFT_AOV_TYPE))
        print("Enabled               :%s" % ("Yes" if aov.GetParameter(c4d.REDSHIFT_AOV_ENABLED) else "No"))
        print("Multi-Pass            :%s" % ("Yes" if aov.GetParameter(c4d.REDSHIFT_AOV_MULTIPASS_ENABLED) else "No"))
        print("Direct                :%s" % ("Yes" if aov.GetParameter(c4d.REDSHIFT_AOV_FILE_ENABLED) else "No"))
        print("Direct Path           :%s" % aov.GetParameter(c4d.REDSHIFT_AOV_FILE_PATH))
        #print("Direct Effective Path :%s" % aov.GetParameter(c4d.REDSHIFT_AOV_FILE_EFFECTIVE_PATH)) # Available from 2.6.44/3.0.05

def main():
    doc = c4d.documents.GetActiveDocument()
    renderdata = doc.GetActiveRenderData()

    # Get the Redshift videoPost and render settings
    vprs = redshift.FindAddVideoPost(renderdata, redshift.VPrsrenderer)
    if vprs is None:
        return

    PrintAOVs(vprs)

if __name__=='__main__':
    main()

Last but not the least, I recommend to check also the Redshift official forum where it's likely that questions like yours could have been already answered.

Best, R

lasselauch

Wow, thanks for the example, @r_gigante.

Was it always possible to import a redshift module? Or is there any info from which version on (C4D / Redshift) this is possible!?

Thanks,
Lasse