Bipul Mohanto

Bipul Mohanto

Doctoral Researcher@ Foveated Rendering | 3D Graphics Rendering| Global Illumination | Multi-View Rendering | Applied Human Perception | Color Science | Computer Vision

GPU Profiling and Benchmarking Series: 01

less than 1 minute read

Published:

(work in progress…)

In both 2D and 3D rendering, especially, in real-time rendering, frame rate (fps) is often presented as the computational improvement. However, the frame rate sometimes miss the important evaluation criteria. Therefore, the frame time (aka. render time in millisecond) could be a better option. For more, see this excellent article.

Many of the existing graphics debugger tools work in this philosophy to evaluate per frame rendering time to find the drawbacks. Some of the popular debuggers are:

Other than, there are several other debuggers, e.g.,

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At the time of writing this (October, 2025), there are limited publicly available rendering engine that works for real-time stereo path tracing. The slow convergence with pixel dense display in VR is limiting real-time stereo path tracer. However, with the RT-core and GPU architecture improvements, I am noticing the recent trend of physically accurate light simulation in real-time rendering, e.g., games. Therefore, definitely with time, the real-time stereo path-tracing (and with other advanced global illumination algorithms) would be a real thing once we will overcome frame-rate constraint. Physically-accurate light simulation will minimized the difference between real and virtual world and extend the path of true immersion. Currently, 90 fps has become a golden standard for VR. However, the higher is the better for immersion.

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