Bipul Mohanto

Bipul Mohanto

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

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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.

Pages

My personal blog, currently work in progress in the following topics: Real-Time 3D Rendering, Applied Human Perception, and so on

Posts

tauray

2 minute read

Published:

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.

Tamashii Beginner Tutorial

1 minute read

Published:

Tamashii is an excellent scientific rendering framework under development by the Department of Computer Graphics, TU Wien. Its main goal is to simplify the creation of research applications in the field of computer graphics by providing a fundamental structure in the form of libraries implementing resource loading, input handling, user interface creation, a complete rendering framework, and graphics API abstraction. The backend graphics API is Vulkan. However, Tamashii only supports single display systems, and \textbf{has not been modified for VR.}

Popular 3D Graphics APIs

less than 1 minute read

Published:

High-level API

The OpenGL sometimes considered as a high level graphics API. It is always the starting point for beginners. However, the applications are limited to the industry. Moreover, compare to other widely used APIs, e.g., Vulkan, DirectX, it is sometimes considered as a high level API. This level is referred to the graphics hardware and memory control.

NVIDIA Falcor Real-Time Rendering Framework Beginner Guide Part 1

4 minute read

Published:

Works for NVidia Falcor 8.0, 7.0, and 6.0

Tried to write some instructions from my side on top of the original NVidia Falcor documentation (v6.0, 7.0, and 8.0), as the original Falcor’s documentation often found old and many things has changed since. This post is equivalent to Falcor’s README doc.

Installing NVIDIA OptiX on Windows 10/11

1 minute read

Published:

Windows Installation and Integration (OptiX, CUDA)

  • note: developers must check the latest driver version for OptiX, CUDA version, and CUDA host compiler before running
  • 1.e) and 3. is not compulsory to run OptiX, 3) is just to run default SDK examples
  • nsight visual studio edition automatically installed with CUDA toolkit installation

Unity: Variable Rate Shading Implementation on HTC Vive Pro Eye

5 minute read

Published:

This is a short tutorial about how to enable VRS feature for HMD using Unity3D. However, in the recent years (2025), many of the mentioned plugins and SDK might be deprecated. The interactions (eye gaze) has shifted to OpenXR. This tutorial is OpenVR-based. Therefore, it might be better you start from OpenXR.

posts_academia

posts_graphicsRendering

Computer Graphics Resources

less than 1 minute read

Published:

3D Model For Research

Here you can find some 3D scenes and models frequently used in the research papers.

posts_pbRendering

Variance, Noise, and Artifacts in Real-Time Path Tracing

less than 1 minute read

Published:

(work in progress…) Noise is also referred as error, visual artifacts. In ray tracing-based rendering, it is referred to as variance. High variance represents more noise as the number of samples has not converged enough to the actual right result of the integral (Light Transport Equation).

Ray Tracing Algorithm

less than 1 minute read

Published:

(Work in progress…)

Ray Tracing Algorithm

TODO: explain mathematically

Popular Global Illumination Real-Time Engines

less than 1 minute read

Published:

  1. RTX Character Rendering (RTXCR): real-time path tracing
  2. Zorah: real-time neural rendering

The Ray Marching

less than 1 minute read

Published:

(work in progress…)

Volume Rendering

less than 1 minute read

Published:

(work in progress…)

posts_perception

02: Perceptually Aurora is less vivid than Camera

less than 1 minute read

Published:

Rod cells are more sensitive than cone cells and are almost entirely responsible for night vision. However, rods have little role in color vision, which is the main reason why colors are much less apparent in dim light.

posts_technologie

Creating and Google Indexing GitHub Pages

less than 1 minute read

Published:

GitHub Pages

  • GitHub allows only one free hosting static page against per github account
  • developers can develop their page with HTML, CSS, and Javascript.
  • very important: for this your github account name, and newly created repository name must me the same. For example, if your github account is sample-git, then your page name must be sample-git.github.io, which later will generate url https://sample-git.github.io
  • you can not push files to your repository, upload templates, or develop manually.
  • https://jekyllthemes.io/ is an awesome repository for templates.

Upgrading Overleaf Experience with Visual Studio Code and Local LaTeX IDEs

less than 1 minute read

Published:

Integration with Visual Studio Code and OpenAI (my choice)

  • Overleaf
    • Install Overleaf Worshop from Visual Studio Code Extension, more on the Overleaf Workshop github
    • Inspect » Network » Cookie or, as alternative set-cookie (copy it)
    • Open Overleaf Workshop » Login to Server » Login with Cookies » Paste the Cookie
  • Install Write Assist AI
    • go to https://platform.openai.com/api-keys and generate a new secret keyand copy it
    • In Visual Studio Code, press Ctrl + Shift+ P to open the Command Palette
    • Search Write Assist AI: Set OpenAI API Key
    • Paste the secrete key
  • Add New Server » Network » Referer (copy) »
  • Big thanks to Thiemo Fetzer’s youtube tutorial