June 17, 2024

Rift Apart PC specs and new features revealed – PlayStation.Blog

Next week, Ratchet & Clank: Rift Apart is launching on PC! Many of you asked for details about the technologies used and the system requirements. Today we’re answering those questions, plus we’ve got some exciting new feature announcements.

To ensure a smooth dimension-hopping experience, our team implemented DirectStorage 1.2 in Ratchet & Clank: Rift Apart on PC, including GPU decompression.

Richard van der Laan, Senior Principal Programmer at Nixxes Software explains: “To enable fast loading and instant switching between dimensions, the game needs to be able to load assets quickly. DirectStorage ensures fast load times, and GPU decompression is used at high graphics settings to stream assets in the background while playing. Traditionally, this decompression is handled by the CPU, but at some point, there is an advantage to letting the GPU handle this, as this enables a higher bandwidth of assets to stream from the storage to the card graphics. We use this to quickly load high-quality textures and environments with a high level of detail.”

Lead programmer Alex Bartholomeus: “For Ratchet & Clank: Rift Apart on PC, we added adaptive streaming based on a live measurement of available hardware bandwidth. This allows us to adapt the texture streaming strategy for the best possible texture streaming on any configuration. With DirectStorage, the use of a fast NVMe SSD and GPU decompression, this results in very responsive texture streaming even at the highest settings.

DirectStorage is developed to make full use of the fast speed of PCIe NVMe SSDs, but the technology is also compatible with SATA SSDs and even traditional hard disk drives. This means that Ratchet & Clank: Rift Apart on PC can use the same technology to load data, regardless of the storage device in your system.

Ray-Traced Ambient Occlusion and XeGTAO

In our initial announcement, we shared that Ratchet & Clank: Rift Apart on PC will feature ray-traced reflections and newly added ray-traced shadows for natural outdoor lighting. Today we can reveal another option that will further enhance the realism of lighting in the game: Ray-Traced Ambient Occlusion, with different quality levels to choose from.

Graphics Programmer Menno Bil explains: “Environmental occlusion is a technique used in games to simulate the effect of ambient lighting on a scene. Ambient lighting is a form of indirect lighting: the light reflected from other surfaces. This effect is mainly seen at cracks, cracks, and corners where surfaces are close together. Commonly used AO techniques are SSAO (Screen Space Ambient Occlusion) and HBAO+ (Vision Based Ambient Occlusion). These are not very demanding on the hardware, but they do not provide physically accurate results. RTAO further utilizes ray tracing to enhance the realism of the in-game crowd environment. We’ve implemented RTAO as an add-on for those with high-end systems that have compatible ray-tracing hardware and processing power to spare.”

Menno and the XeGTAO team also implemented Intel’s implementation of Ground-Truth Ambient Occlusion. Like SSAO and HBAO+, this solution is based on screen space. Therefore, this technique does not enable the level of realism that RTAO does, but the performance cost is much lower and comparable to the cost of HBAO+ implementation. XeGTAO can be selected as an option in the game and works with graphics cards from all vendors.

“XeGTAO generates high-resolution ambient occlusion that shows even the smallest details in the geometry,” says Bil. “Overall, XeGTAO’s output quality is very high and creates a pleasing appearance.”

System Requirements

Now that we’ve detailed all the features of Ratchet & Clank: Rift Apart for PC, it’s time to tell you more about the system requirements. When making a PC version of a game, we put a lot of work into scalability. Additions like ray-traced shadows, ray-traced ambient occurrences, and three-screen support are aimed at those with the latest and greatest hardware so they can push their systems. With highly customizable graphics and features, we scale the game to less powerful systems to make it accessible to as many gamers as possible. Below is an overview of the recommended specifications for a variety of graphic presets.

Although Ratchet & Clank: Rift Apart can be enjoyed using HDD and the minimum system requirements, we recommend players to use an SSD along with the recommended system requirements or higher, to experience dimension-hopping gameplay signed the game as originally planned.

Details on ray tracing support for AMD GPUs coming soon

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