what is Ray Tracing?

                         

Ray tracing is a computer graphics rendering technique that physically simulates the behavior of light in the real world. It produces highly realistic lighting, shadows, reflections, and refractions in games and animations. This technology traces the path of light rays from the camera to objects, providing superior visual detail compared with traditional rasterization methods. (Source: NVIDIA Developer)

The following are the key points regarding ray tracing:

- How It Works: It traces the path of light rays from the viewer or camera to the light source while calculating how light interacts with 3D objects, including reflections, refractions, and shadows.
- High Realism: It creates accurate visual effects, such as mirrors reflecting objects, light passing through glass, and soft shadows.
- Applications: Ray tracing is commonly used in the film industry, particularly for CGI animation, and is now available in real time in video games through GPUs with dedicated hardware support, such as the RTX series.
- Performance Requirements: It requires substantial GPU computing power because it tracks millions of light rays. As a result, the frame rate may decrease on less capable devices.
- Components: Ray tracing often works alongside technologies such as Global Illumination and reflections.

In short, ray tracing makes game graphics more lifelike by simulating how light behaves in the real world.

In recent years, smartphone technology has advanced rapidly, particularly in the gaming sector. Gaming trends have gradually shifted toward handheld mobile devices, encouraging many developers to adapt technologies traditionally associated with consoles and PCs for smartphones. One example is advanced graphics technology, including ray tracing.

Mobile ray tracing is an advanced graphics technology available on smartphones that simulates the behavior of light in real time to create highly realistic reflections, shadows, and lighting in games. It reproduces the way light interacts with and reflects off object surfaces, resulting in significantly more immersive visuals than conventional rasterization techniques.

Key Features of Ray Tracing on Smartphones:

- Natural Lighting Effects: Light sources such as fire or lamps produce more accurate illumination, making the game environment feel more realistic.
- Detailed Reflections and Shadows: Objects can dynamically reflect light and shadows on surfaces such as water, mirrors, and metallic floors.
- Performance Improvements: This feature is generally available on high-end chipsets such as the Snapdragon 8 Gen 2 and newer models, as well as the A17 Pro and later, enabling advanced rendering with reduced lag.

Mobile chipsets that support hardware-accelerated ray tracing are generally found in the latest flagship devices. Major examples include the Snapdragon 8 Gen 2, Snapdragon 8 Gen 3, Snapdragon 8 Elite, and MediaTek Dimensity 9200, 9300, 9400, and 9500. This technology enables more realistic game visuals, including accurate reflections and lighting.

The following is a detailed overview of mobile chipsets that support ray tracing:

- Qualcomm Snapdragon:
- Snapdragon 8 Elite / 8 Gen 5, which support advanced ray tracing.
- Snapdragon 8 Gen 3, used in devices such as the ASUS ROG Phone 8.
- Snapdragon 8 Gen 2, used in devices such as the iQOO 11, Samsung Galaxy S23 and S24 series, and ROG Phone 7.

- MediaTek Dimensity:
- Dimensity 9500, which supports ray tracing at up to 120 FPS with the Mali-G1 Ultra GPU.
- Dimensity 9400, which supports OMM (Opacity Micromaps) technology.
- Dimensity 9300 and Dimensity 9200.

- Samsung Exynos:
- Exynos 2400 and Exynos 2200, featuring AMD Xclipse GPUs.