Do you remember the days where i just mentioned what impressed me instead of how it was made? Today it’s like that. But i hope you’ll enjoy the article anyway. Oh and by the way: feel free to suggest games or tricks you think this blog should cover.
When ships jump around in Homeworld, there’s a neat Hyperspace Effect:
I would state 3 points why this is technical kind of complicated:
- You have to “cut” the ship and render only a part of it
- You have to “fill” the cut surface
- You can create a white “outer glow” around the cut
Feel free to put your Sherlock hat on and guess how Relic did this effect. If you need some clues, here’s what i got:
I thought, maybe the ship geometry is completely there but drawn transparent behind the plane. But the wireframe tells a different story:
The ship doesn’t move through the plane. The plane moves through the ship. And it uses the ship coordinate system – or it’s just “linked” to the ship (because it moves with the ship):
I’m sorry about the missing background information but i can talk about one interesting thing i learned during the investigation:
None of the tools i usually use to have a deeper look were working with Homeworld. Maybe it doesn’t use DirectX? But how can i find out, which mode my graphic card is running?
I found out that Homeworld uses OpenGL and thanks to the great GLIntercept i was able to force a wireframe mode.
This video by Chris Murph has a part at the beginning where he shows how to create an effect very similar to the homeworld-hyperspace-effect! Not saying it’s done like this in Homeworld, but it’s a very cool solution! :)
This is the full video: