They're Random, Baby!

Tips and Tricks

Metafire/NthDegree256 | Vent Blood

On March 1, 2002, NthDegree256 posted this on the HBO Forum:

A week ago or so, I was playing The Maw on Heroic difficulty just for the practice. I made it to the Engine Room, clambered up to the top, hit the switch, and prepared to rocket the first vent. I fired the rocket in, the big explosion went off..... and a TON of red blood flew out of the vent.

This was explained by Ferrex, a Halo level designer:

This is a "feature" that was discovered a little too late to be documented. What you're actually seeing isn't blood... it's dirt. Red dirt. That particular effect does some sort of sampling of the texture color at the point where it originates from... that way, you get yellow sand spray when it hits sand, or brown dirt when it hits dirt.

In this case, the vent cores are cherry red from the heat. Those cherry red surfaces are probably (I haven't checked this) of material type "dirt", the default material type. The net result is that, when a grenade or rocket detonates against one of those surfaces, you get a horrifying geyser of blood colored dirt.

For the edification of the masses, Frogblast, documenter extraordinaire, created this film to show the process, and announced it on March 6, 2002.

Click the frame above to see the movie. Or, option-click (right-click on a PC) on this link to download it directly to your hard drive.

This page mirrors information on Utfoo

Movie © Metafire, 2002
360x240 | 620 kb | 0:06 | QuickTime 5 format

Back to Tricks Collection