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DirectX 12 Descriptor Tables vs Root Descriptors: Performance Tradeoffs

DirectX 12 / Vulkan Dev

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3y ago · Sep 24, 2022 8:10 PM

Root Descriptors avoid descriptor table indirection by placing 64-bit GPU virtual addresses directly in the Root Signature.

DirectXRay · DirectX 12 & Vulkan Command Lists

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3y ago · Sep 25, 2022 1:57 AM

However, root signatures are limited to 64 DWORDs. Balancing CBV/SRV/UAV descriptor tables with root constants is key.

VectorByte | DirectX 11/12 Hooking & ImGui Overlays

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3y ago · Sep 25, 2022 3:57 AM

Binding frequently updated constant buffers as root descriptors saved noticeable CPU driver overhead in our benchmarks.

RenderMaster | Clean UI Design & Dear ImGui widgets

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