Meridian docs · revised 2026-10-13 · Windows installer

Windows 10 / 11 · x64

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DComparison · revised 2026-10-13

Why Vulkan

One explicit renderer: RDNA2 maps cleanly, pipelines cache well, maintenance stays honest.

Section
Diff
Host
Windows 10 / 11, x64
Revised
2026-10-13
White DualSense controller leaning against its console on a desk.
Fig. D1Comparison: Why VulkanDiff

01At a glance

Renderer
Vulkan 1.3 only, no fallback
Mapping
RDNA2 → SPIR-V pipelines
Cache
Explicit pipelines persist per title
Cost
One renderer maintained well

02The argument

Vulkan's explicit pipeline model matches how RDNA2 work is structured, so translation is mechanical rather than interpretive — RDNA2 and SPIR-V. Explicit pipelines also persist cleanly, which is the entire Shader cache design.

A single renderer means every fix improves every title. A second renderer would halve maintenance and double the untested configurations behind each Compat rating.

03The trade-off, stated

  • Vulkan 1.3 with current drivers is mandatory. Older GPUs cannot pass Vulkan check by design.
  • No DirectX or OpenGL fallback exists or is planned. The floor is the floor.
  • The payoff: one well-tested path from your owned dump to a warmed cache. Own your library; 400+ titles indexed. Build: Download Meridian.

04Questions

Q.01Will Meridian add DirectX?

No. One explicit renderer is the design; a second would halve quality for no rating gain.

Q.02Does Vulkan choice affect ratings?

Yes, positively: every rating run uses the same tested renderer, so results compare.

Q.03What if my GPU lacks Vulkan 1.3?

It cannot run Meridian. The Vulkan floor is load-bearing — see Hardware.