- Download Avisynth and install it.
- Download VirtualDub and unzip / install it.
- You need to have a set of BMP files with sequential numbering. Refer to this post for how to do that.
- In the folder containing the bitmaps, create a text file. Call it READ.AVS (it must have AVS extension).
- Open it in Notepad and put the following line into the file:
ImageSource(“%04d.bmp”, start = 1, end = 1800, use_DevIL = true)
- The above syntax is for files with 4 digit filenames, starting at 0001.bmp and ending at 1800.bmp (obviously, if you have more or less frames, change the 1800 value accordingly).
- Open VirtualDub
- Open the READ.AVS file that you created.
- Now you should be able to save this file from VirtualDub to an AVI. Here is some quick settings:
Video – Direct Stream Copy
Audio – No audio
- Go File – Save as AVI
- Put your AVI somewhere with plenty of disk space – it could become huge.
Are your renders taking ages? Trying to output a big rendered walkthrough? No matter how fast your PC is, these things can take time. Why not enlist a few of the other computers in your office to help produce that high-resolution animation?
In pure Revit (without using 3D Studio), the solution is a little bit more crude. However, it does work.
Here are the basic steps:
- Set up your walkthrough.
- Save the Project or Save to Central.
- Get your other computers running and open the same walkthrough on all of these PCs.
- On PC#1 in Revit, go to Export – Animation – Walkthrough, and pick a set number of frames for that PC to output. For example, frames 1 to 600 out of 1800.
- Make sure you choose BMP for the output, and when naming the file, just put in 1- (this will make sense later.
- On PC#2, export frames 601 to 1200 to BMP. Name it 601-.
- On PC#3, export frames 1201 to 1800 to BMP. Name it 1201-.
- Using Advanced Renamer, rename all the files to suit the appropriate frames. (see associated post)
- Put all the BMPs in one folder on the server or on one of the PCs.
- Using Avisynth and VirtualDub, join the BMPs into an AVI. (see associated post)
- Then, either use some video compression software, or do some post-processing.
There you go, you have successfully done some distributed or parallel rendering in Revit!