If you find yourself in this situation, you're mostly set, but you’ll still have to make sure your art assets work well across the different resolutions you care about.Ī second approach is to decide on a fixed resolution regardless of the native resolution.

Or the fragment shader might not be doing enough work to be a performance bottleneck. Depending on the style of game, you might be stuck with this approach. The easiest way is to draw the scene to the native resolution. There are true and tried ways to tackle the varying resolutions in games. The other wrinkle is that even as graphics hardware improves it will inevitably be consumed processing more pixels. Samsung Galaxy SIII, 1280 x 720, Adreno 225Ĭlearly targeting not just the ever increasing resolutions but also targeting different resolutions is an issue that game developers are either already dealing with or they will find unavoidable very soon.Motorola RAZR* i, 960 x 540, PowerVR SGX540.Galaxy Nexus, 1280 x 720, PowerVR SGX540.Apple iPhone 4S: 960 x 640, PowerVR SGX543MP2.A quick survey of some devices out on the market at the time of this writing shows the variation in resolutions, even for devices running the same OS. Targeting devices with different resolutions is another problem. But high resolutions are not the only issue for mobile developers. Fragment shader invocations will increase when targeting high resolutions. This cost is compounded by the fact that mobile platforms are targeting higher resolutions with each new release. Calculating the final color for each pixel on the screen takes a lot of processing power and time and can be prohibitively expensive. Of course, this makes sense because the fragment shader is where lighting calculations, texture sampling, and post-processing effects are computed.

When doing performance analysis on games and graphics workloads, processing the fragment (or pixel) shader seems to be a major performance bottleneck. Dynamic Resolution Rendering on OpenGL* ES 2.0 Ĭode Sample: dynamic-resolution.zip

Opengl es 2.0 draw line