#Opengl 4.3 demo update#
#Opengl 4.3 demo code#

Building and Running the ApplicationДЇollow these steps to compile and run the example application. This architecture also offers increased power gating and clock domain flexibility, which are well worth taking advantage of. Its architecture supports GPUs with up to three slices (providing 72 EUs).

#Opengl 4.3 demo update#

Surfaces can additionally come from separate swap chains using different update frequencies and resolutions (for example, full-resolution GUI elements composited on top of up-scaled, lower-resolution frame renders) to provide significant enhancements.

The display features further offer multiplane overlay options with hardware support to scale, convert, color correct, and compose multiple surfaces at display time. This enhanced floating-point support leads to both power and performance benefits when using half precision. This change reduces the overhead associated with updating binding tables and provides more flexibility to programmers.Д®xecution units have improved native 16-bit floating point support as well. (For example, you can use up to 128k x 128k x 8B mipmapped 2D textures.)Д«indless resources increase the number of dynamic resources a shader may use, from roughly 256 to 2,000,000 when supported by the graphics API. There is now support for larger texture and buffer sizes. There are also new shader instructions for clamping LOD and obtaining operation status. Reading unmapped tiles returns zero, and writes to them are discarded. Tiled resources include support for large, partially resident (sparse) textures and buffers. The new architecture also offers a performance improvement for back-to-back atomics to the same address. GPU memory access includes atomic min/max and compare-and-exchange for 32-bit floating-point values in either shared local memory or global memory. With support for 4K video playback and extended overclocking, Skylake is ideal for game developers. 6th generation Intel Core processors have been redesigned to offer higher-fidelity visual output, higher-resolution video playback, and more seamless responsiveness for systems with lower power usage. Sample enhancements include a GPU that, coupled with the CPU's added computing muscle, provides up to 40 percent better graphics performance over prior IntelВ® Processor Graphics. These processors offer a number of new benefits over previous generations and provide significant boosts to overall computing horsepower and visual performance. Its multicore architecture improves performance and increases the number of instructions per clock cycle. The 6th generation Intel Core processors provide superior 2D and 3D graphics performance, reaching up to 1152 GFLOPS. The reverse is also true for smaller images on the screen. This means that the larger the on-screen image is, the larger the image the application uses in the mipmap chain. You can see the calculations in the reshape() function. To keep things fair when using an image, the application calculates the closest-sized image in the texture to what the texture sampling hardware is doing in the texture's mipmap chain. The following combinations are used when measuring textures: When a switch is made the image animates, visually signaling the switch.

Pressing the spacebar rotates through the various combinations so you can compare them. The current performance for each (displayed in milliseconds per frame) displays in the console window, along with the number of frames per second. The accompanying application demonstrates this by alternating between using a texture and a 2D image. Use a texture rather than an image to get the best rendering performance out of OpenGL. Textures Have Better Rendering Performance than Images

A computer with a 6th generation IntelВ® Coreв„ў processor (code-named Skylake).

The following are required to build and run the example application:

#Opengl 4.3 demo code#

The sample code is written in C++ and is designed for Windows* 8.1 and 10 devices. While this article refers to graphical game developers, the concepts apply to all applications that use OpenGL 4.3 and higher. The purpose of this application is to show the effect on rendering performance (milliseconds per frame) when using the two techniques. It is accompanied by a simple C++ application that alternates between using a texture and using an image. This article discusses why using a texture rather than an image can improve OpenGL rendering performance.