Lightmap Ray Tracing Simulation 
Nvidia
APRIL 1, 2021
To help them achieve this goal, NVIDIA has pioneered real-time ray tracing hardware with the launch of the RTX 20 series. RTX Global Illumination (RTXGI) RTXGI provides developers with a scalable solution for multi-bounce indirect lighting without light leakage, time-intensive offline lightmap baking, or expensive per-frame costs.
Nvidia
MAY 26, 2021
This laid out a vision of a new era of computer graphics for video games that featured photorealistic, ray-traced lighting, AI-powered effects and complex worlds with massive amounts of geometry and high-resolution textures.
iXie gaming
JULY 19, 2024
(Example: Soft light from a computer screen) There are two main methods to calculate lighting quality: Ray Tracing. Simulates how light bounces between surfaces, making lighting look more natural and filling in dark areas. Rasterization. Five Advanced Lighting Techniques Global Illumination (GI).
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