If there’s one thing that every Galaxy on Fire pilot out there enjoys even more than shipping a cargo hold full of Vossk Organs from S’kolptorr to Wolf-Reiser and score almost a million credits, it is equipping his ship with the most powerful and advanced weapons systems on the market and blasting all space pirates from here to Skavac into oblivion! And for most dedicated fighter pilots it does hardly even make a difference whether they vaporize their enemies’ ships with the dazzling beam of a Disruptor Laser, the kinetic flares of a SunFire o50 thermo-weapon or the devastating shrapnel rain of a Berger Flak 9-9 scatter gun. However, for the graphics artists working on Valkyrie HD, Galaxy on Fire 2’s stunningly beautiful high-definition add-on specifically optimized for iPhone 4S and iPad 2, the choice of weapons does indeed play quite an important role, as each of the 50+ primary and secondary weapons in the game does contain an individual set of special effects and animations for their respective muzzle flashes, shots and explosions.[full] And, needless to say, all these flashy and flamboyant beams and blasts have been completely re-done from scratch in Valkyrie HD to make the game’s space action look more staggering and spectacular than ever before! Besides much more complex animations, the new effects also feature up to 32 times higher texture resolutions and four times higher polygon counts, which promise some real eye candy whenever you hit the “Fire” button! Just compare the new scatter gun animation in HD to that in SD and you will surely see what I’m talking about!
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_Scatter Gun (HD)
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_Scatter Gun (SD)
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Besides the overhaul of the weapons systems, the creation of the sophisticated OpenGL shaders for the cloaking device and energy shield have been particularly challenging for our designers and programmers. The energy shield surrounds the player’s space ship with a honeycomb-shaped force field that absorbs all kinds of impacts and explosions and quite often turns out to be a last-minute life-saver for a struggling pilot under enemy fire. In Valkyrie HD, the energy shield’s characteristic refraction effect is created with the help of a normal map.

The Energy Shield in Galaxy on Fire 2 HD - Valkyrie
The cloaking device, on the other hand, is inspired by effects you’ve seen in sci-fi classics such as Predator or Star Trek and is also created with the help of normal maps. This time, however, the line of vision and the surface angle have been taken as basis for the creation of a so-called Fresnel effect which describes the alteration of certain surface properties according to the viewing angle. While the cloaking device makes the player’s vessel literally invisible for his enemies, the trained eye of a veteran GOF pilot should have no problem at all when it comes to indentifying the hidden ship. So what about you? Do you recognize the space craft in the image below?

The Cloaking Device in Galaxy on Fire 2 HD - Valkyrie
Well, fellow space adventurers, that’s it. We hope that you enjoyed our second developer’s diary for Valkyrie HD and would love to see you around soon when the eagerly awaited add-on finally sets the iPhone 4S and iPad 2 on fire!