AutomatedDAERendering.py

# this script will scan the following specified folder for collada files, change it to wherever you are storing them

YourFolderPath = ''
# i.e. YourFolderPath = 'C:\\Users\\Martin\\Desktop'   

# The .dae files in that folder will be iteratively imported into blender and rendered
# The images will be output to whatever folder path is specified in the output field within Blender
# They will be organised in folders, where each folder has the same name as the .dae file which was rendered 
# If you wish, you can uncomment the following line and replace the output path with your own manually.


# bpy.context.scene.render.filepath = 'your output folder path here' 


# Blender will freeze whilst it is rendering, it's automated so that shouldn't be an issue. 
# if you want to check it is working, then check the output folder as it works. 
# set up the scene to render as normal, including output resolution, samples, number of frames etc... 

# to see the scripts text output as it runs:
# go to Window -> Toggle System Console
# this is useful to track the script as it goes

# built using Blender 2.81 

import bpy
import os

outputPath = bpy.context.scene.render.filepath

def scanFolder(inputPath):
    
    objList = []
    
    for file in os.listdir(inputPath):
        if file.endswith(".dae"):
            objList.append(os.path.join(inputPath, file))
            print("found:" + file)
            
    return objList        

def LoadOBJ(filePath):  
    bpy.ops.wm.collada_import(filepath=filePath)    
    
    imported_object = bpy.context.active_object 
    
    print(imported_object)
    
    mat = bpy.data.materials.get("Head")
    
    print(mat)
    
    # Assign it to object
    if imported_object.data.materials:   
        imported_object.data.materials[0] = mat
    else:
        imported_object.data.materials.append(mat)
    
    bpy.ops.object.shade_smooth()      
    return imported_object;
  
def SetOutput(filePath):  
    name = bpy.path.display_name(filePath) + '\\'
    bpy.context.scene.render.filepath = os.path.join(outputPath, name)
    print(bpy.context.scene.render.filepath)

def ResetOutput(): 
    bpy.context.scene.render.filepath = outputPath
    
def DoRender():
    bpy.ops.render.render(animation=True)          
        
if not( os.path.exists(YourFolderPath) and os.path.isdir(YourFolderPath) ):
    YourFolderPath = os.path.dirname(bpy.data.filepath)
    
for daePath in scanFolder(YourFolderPath):
    print(daePath)
        
    # check collada path    
    if not( os.path.exists(daePath) ):      
        print("invalid collada directory")
        break
    
    # move to sub directory of output folder
    SetOutput(daePath)  
                
    # make output folder    
    try:    
        os.mkdir(bpy.context.scene.render.filepath)  
    except OSError:
        print("unable to create folder, it may already exist")        
            
    # check output folder
    if not( os.path.exists(bpy.context.scene.render.filepath) and os.path.isdir(bpy.context.scene.render.filepath) ): 
         print("invalid output directory")
         ResetOutput()
         break
                
    # load object    
    LoadOBJ(daePath) # sets active object to imported      
         
    # will block for duration of render
    DoRender()
    
    # delete
    bpy.ops.object.delete() # deletes active object
    
    # reset to base output folder
    ResetOutput()

print("Complete :)")