Ray Tracing Decoded: The Future of Ultra-Realistic Graphics

Ray tracing has long been considered the holy grail of gaming graphics. Over the years, it has been viewed as a technology that can bring games closer to photorealism. Although still in its early stages, NVIDIA and Microsoft demonstrated at GDC 2018 that real‑time ray tracing is feasible.

Typical graphics pipelines rely on rasterization, which draws scenes one triangle at a time with many approximations. Ray tracing, by contrast, models millions of light rays and computes how they bounce in a scene, mimicking the way light works in the real world.

This technique is already used by movie studios to achieve high‑quality visual effects, but it requires massive compute farms that run for hours or days per frame. A game, however, must render at least 30 frames per second on a single consumer PC, which most hardware cannot handle without acceleration.

At GDC 2018, Microsoft introduced DXR, a DirectX 12 extension that adds software support for ray tracing. NVIDIA announced hardware‑accelerated real‑time ray tracing on its Volta GPUs and full DXR support. AMD also released driver updates for DXR and its own Radeon Rays technology.

The excitement around NVIDIA’s RTX line stems from its dedicated ray‑tracing cores, which are essential for achieving smooth real‑time performance. Studios such as Epic Games, Remedy, and others have already showcased ultra‑high‑quality ray‑traced scenes.

Despite these breakthroughs, several factors still prevent widespread adoption of ray tracing in mainstream games.

Renewable Energy Will Replace Traditional Energy Sources

Due to falling costs and sustainability drives, renewable‑energy procurement is expanding beyond tech firms to mainstream enterprises. Companies such as Starbucks, Target, General Motors, Kimberly‑Clark, General Mills, and Anheuser‑Busch have signed large power‑purchase agreements to source renewable electricity.

Kevin Haley, Marketing Manager of the Rocky Mountain Institute’s Commercial Renewable Energy Center, notes that “the corporate renewable‑energy market is seeing transactions from all industries,” and that non‑buyers are increasingly seeing sustainability as a business imperative.

Although former President Trump claimed to have “ended the coal war,” his administration’s policies have attempted to revive coal and roll back clean‑energy regulations, creating tension between federal policy and corporate sustainability goals.

Data from the Commercial Renewable Energy Center indicate that 2018 renewable‑energy transactions are projected to exceed 2017’s 2.78 GW by a significant margin, with 1.96 GW already contracted this year.

Despite federal setbacks, more than 130 companies have committed to 100 % renewable energy, and the trend shows a steady increase in corporate procurement of green power.

From 2008 to 2013, only four companies—Google, Apple, Walmart, and Johnson & Johnson—had signed renewable‑energy deals. Between 2013 and 2018, an additional 51 companies joined, including Amazon, Facebook, Microsoft, T‑Mobile, and AT&T, which together now account for more than half of total renewable‑energy purchases.