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NVIDIA provides profiling tools and native debugging tools that integrate right into Visual Studio or Eclipse for ease of use. Profile early and often to ensure you understand how your product is performing on the target. With any platform understanding the performance is key.
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NVIDIA provides documentation and sample code that function details best practices and can be used as a great starting point for developers. These requirements are similar to console development but may seem strange to PC developers.
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The Android LifecycleĪndroid applications have to obey certain rules in order to cooperate well with the operating system. Additionally, many Android devices have the option of connecting to a TV via HDMI which is typically setup in a landscape orientation in most households. Do not assume the device is a phone (and default to portrait orientation) when a 5" physical screen is detected. This includes support for landscape orientation in log-in screens and start up animations. For these reasons all Android apps should be developed to supporting landscape orientation. SHIELD is designed primarily for landscape orientation use with its 720p, 5" screen. App Design Considerations Landscape Screen SHIELD supports up to 4k video via the HDMI out. With the HDMI out support, developers should consider various resolutions and screen sizes when designing their game.
Small Screen / Large ScreenĪ UI designed to look and work well on a 5" touchscreen may be a little overwhelming on a 72" television. A forward facing mic is avaliable in SHIELD for voice recognition based input. SHIELD also contains a GPS and has 3 Axis Gyro and a 3 Axis Accelerometer allowing tilt determination for game play. This image shows the layout and buttons on SHIELD.įor more information on using game controllers see the Tegra Android Documemtation. Note that designers should be mindful to allow the controller to interact with the user interface as well as for the main game controls. Therefore, considerations for controller based controls should be made for all Android game developers. Aside from the SHIELD form factor, use cases such as connecting a Bluetooth game controller with a tablet or phone are becoming more popular. Another option for controls is via motion with the acceleromter and gyroscope.
For this reason console style controllers with dual analog sticks are popular. Touch is great for some games however it is not ideal for intense gaming where the player needs to interact precisely without looking at their fingers and obscuring the screen. The most popular games today for phones and tablets take advantage of the spatial characteristics of the touch screen.
Exploiting the hardware including the programmable graphics pipeline can require native application development in C++ rather than Java.Customers are looking for broader deeper experiences.Form factor affects game design, particularly using the controller as the primary input device.Developing for these devices is a little different to regular Android development. It is anticipated that many similar devices will become available in the near future.
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Housing a 5-inch 720p retinal quality display and console-grade game controller, SHIELD can be used as a handheld device or connected to a TV via HDMI or wirelessly via Miracast. NVIDIA® SHIELD™ is a high performance Android gaming device with a powerful NVIDIA® Tegra® 4 processor containing a quad-core ARM Cortex A15 and an advanced 72-core ULP NVIDIA GeForce® GPU.