sugárkövetési

Sugárkövetés, often translated as ray tracing, is a rendering technique used to simulate the physical behavior of light. It works by tracing the path of light rays from the camera through a scene and calculating how they interact with objects. When a ray hits a surface, it can be reflected, refracted, or absorbed. The algorithm then recursively follows these new rays to determine the color and intensity of the light reaching the camera.

This method allows for the creation of highly realistic images with accurate lighting effects such as shadows, reflections, and refractions. Unlike rasterization, which projects 3D geometry onto a 2D screen, ray tracing simulates the actual physics of light, leading to more lifelike results. However, this realism comes at a computational cost, making ray tracing historically more demanding than other rendering techniques.

In recent years, advancements in hardware, particularly the development of dedicated ray tracing cores in GPUs, have made real-time ray tracing feasible for video games and other interactive applications. This has led to a significant improvement in visual fidelity, offering more immersive and believable virtual environments. The technique is also widely used in film production for visual effects and animated content, where computational time is less of a constraint and the highest level of realism is desired.