Getting and setting frame range from RenderData

nicholas_yue

Hi,

I read that I can get the RenderData object via

rdata = doc.GetActiveRenderData()

I see that frame range values are documented here

https://developers.maxon.net/docs/py/2023_2/modules/c4d.documents/RenderData/index.html?highlight=renderdata

RDATA_FRAMEFROM
RDATA_FRAMETO
RDATA_FRAMESTEP

Cheers

r_gigante

Hi @nicholas_yue thanks for reaching out us.

Although I'm not sure if your post was meant as a question or as a statement I'm going, nevertheless, to share some thoughts.
The data you're looking for are stored in the RenderData BaseContainer and you can set/get them using the usual method.

A full exmaple is available on PluginCafe Github Repo.

Put down in words the code might looks like something as:

def printRDataInfo(in_rdata):
    # BaseTime values are printed as frame
    print in_rdata[c4d.RDATA_FRAMEFROM].GetFrame(doc.GetFps())
    print in_rdata[c4d.RDATA_FRAMETO].GetFrame(doc.GetFps())
    print in_rdata[c4d.RDATA_FRAMESTEP]

# Main function
def main():
    # retrieve the RenderData instance
    rdata = doc.GetActiveRenderData()
    
    #just print the default values
    print "default rdata from/to/step values"
    printRDataInfo(rdata)
    
    # start is at sec 1
    rdata[c4d.RDATA_FRAMEFROM] = c4d.BaseTime(1)
    # end is at sec 2
    rdata[c4d.RDATA_FRAMETO] = c4d.BaseTime(2)
    rdata[c4d.RDATA_FRAMESTEP] = 1
    
    #just print again the values
    print "first change with values to secs"
    printRDataInfo(rdata)
    
    # start is at frame 5
    rdata[c4d.RDATA_FRAMEFROM] = c4d.BaseTime( 5.0, doc.GetFps())
    # end is at frame 15
    rdata[c4d.RDATA_FRAMETO] = c4d.BaseTime( 15.0,  doc.GetFps())
    rdata[c4d.RDATA_FRAMESTEP] = 1
    
    #just print again the values
    print "second change with values to frames"
    printRDataInfo(rdata)

Cheers, R