Intel Ray Tracing Technology Research: New Progress in Efficient Path Tracing Rendering

Recently, Intel engineers have made compelling new developments in the areas of tracing ray paths and exploring neurographics research. They are working hard to improve the efficiency of path tracking to achieve integrated GPU real-time path tracking. This series of research results were introduced through three papers published at top international conferences such as SIGGRAPH, EGSR and HPG, and proposed a new path tracing optimization method, aiming to reduce the number of calculations for simulating light reflection, thereby reducing the burden and improving GPU performance.

The chief engineer came up with an innovative method for calculating the effect of light when reflected using the GGX microsurface model. GGX is a graphics technology that can simulate the reflection of light in different directions. By simplifying the material into a hemispherical mirror, the new method simplifies the simulation process and increases computational efficiency.

Secondly, they also demonstrate a more efficient way to solve the challenging glitter surface rendering problem in 3D environments. According to their research, the method can increase the efficiency of rendering by taking into account the number of flashes visible on each pixel, and only render the flashes visible to the eye, avoiding unnecessary calculations.

Finally, they introduced a new method called "Markov Chain Mixture Models for Real-Time Direct "Illumination" is a new method used to construct photo trajectories under different lighting scenarios. Although this method is more complex, it can achieve more efficient rendering technology and generate complex direct lighting effects in real time.

According to the editor Understand that although ray path tracing technology has been available in 2018, achieving high resolution and 60FPS real-time path tracing still requires powerful computing performance, and most GPUs are still unable to meet the needs of modern AAA games.

It is generally believed that if Intel can achieve excellent ray tracing performance on its integrated graphics cards, it will be expected to promote this technology to more mainstream products and improve the ray tracing effects of independent graphics cards. .This will provide users with a more realistic and immersive visual experience, bringing more significant progress to games and graphics applications.

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