Introduction | Record a demo | Demo to TGA | Demo to WAV | TGA to AVI | Compression with Gordian Knot

TGA to AVI
When looking in the folder containing our screenshots, we note that it now contains a whole lot of numbered image files. What we're gonna do now is to stitch all those images together och save them as an .avi-file. There are alot of programs capable of doing this, some are freeware and some are commercial products. Information on where to find such programs can be found in the links section. In this guide I'll use a free program called VirtualdubMod, included in the Gordian Knot Rip Pack installation.

Start VirtualdubMod and go to File --> Open Video File and browse to the folder containing the screenshots. Make sure that the box next to which it says Automatically detect and load additional segments is checked. Then select the first file in the sequence and click Open/OK. A small window labelled Image import filter opens up, showing the progress of the importing of images. When it's done you should see something similiar to what is shown in the below image.

iNfensus @ QCon 2k3

If all we're interested in is to create an AVI-file (without audio) then we have to do nothing more than to save it as an AVI-file. What we might want to do however is to discard the sequences we do not want to include in the final movie. To do that we simply move the slider beneath the sequence to the location where we want to start cutting, press the left button in the red circle, move the slider to the end of the part we want to discard and then press the right button in the red circle. We then press DELETE and the images between our two markers will be discarded.

What we are going to do now is to save the matrial as an AVI-file. One thing we must do before we do that however, is to make sure that its saved using the same framerate as the value we chose for cl_avidemo, that is 25 in our case. Click Video and then Frame Rate. A small window like the one below opens up, and we set the framerate to 25 (or the value you used for cl_avidemo). This is a rather important step to remember, because if we leave it out we'll have an AVI-fil running at a speed different than that of the game demo file.

When we have made the above changes we go to Video and chose Full Processing Mode then we go to Video again and select Compression. In the window that opens up we select (Uncompressed RGB). Finally we go to File where we click Save as... Chose a name for the file and click OK. A window opens up showing the conversion process. When it's done we may open the AVI-file in the media player of our choice.
I have now described the entire process from recording a demo, outputting it to screenshots och from that create an AVI-file that anybody can watch in the available media players. Our AVI-file is uncompressed though, which means that in size it equals the screenshots it's made up of. It doesn't contain any audio track either. In the next step I'll show you how to add audio to the file as well as compressing it.

Compression with Gordian Knot -->