Unity02: VR Rendering

less than 1 minute read

Published: July 10, 2025

NVIDIA Falcor Real-Time Rendering Framework Beginner Guide Part 1

4 minute read

Published: August 15, 2024

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.

Unreal Engine: Variable Rate Shading with UE v4.23.1 and HTC Vive Pro Eye

2 minute read

Published: May 04, 2024

I have divided the instructions into three sections:

1. Hardware, software, and driver prerequisite
2. Cloning and building Unreal Engine 4.23.1
3. Working with dynamic VRS in VR

OptiX Related Different Rendering Engines and Libraries

1 minute read

Published: April 01, 2023

(***Constantly upgrading this page at my free time. Some information you may find misleading, non-correct, or already obsolete)

1. Real-Time Ray and Path Tracing Learning Resources

2 minute read

Published: February 04, 2023

Path tracing is one of the most popular algorithms under the Physically-Based Rendering (PBR) category. It is mainly a discrete light simulation that approximately imitates the continuous real-world light interaction using the approximate physics and calculus algorithm.

Objects and Materials Part 1 (Wavefront 3D Model Specification)

3 minute read

Published: June 24, 2022

1.1. wavefront .obj

the OBJ format, the MTL format was used and documented by Wavefront Technologies in the 1990s in association with its Advanced Visualizer software. Object files can be in ASCII format (.obj) or binary format (.mod). Vertices are stored in a counter-clockwise, and in object space (un-normalized).

Part 3: Tutorial 01 (7.0-7.5)

1 minute read

Published: June 24, 2022

(this tutorial is work-in progress…)

Part 3.2: Installing NVIDIA OptiX on Ubuntu (20.04.01)

5 minute read

Published: June 19, 2022

• Graphics Info: sudo lshw -C video
• C++, IDE (CLion), Compiler (g++), Debugger (gdb)
• CUDA (NVCC)
• OptiX 7.4/ OptiX 7.5

Part 3.1: Installing NVIDIA OptiX on Windows 10/11

1 minute read

Published: April 19, 2022

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

Part 2: How to get started (OptiX 7.0-8.1)

2 minute read

Published: April 19, 2022

OptiX 7.6 (the latest version is mostly recommended)

How to start learning OptiX 7.+

Unity01: Variable Rate Shading Implementation on HTC Vive Pro Eye

5 minute read

Published: January 03, 2022

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.

Misc01: Creating and Google Indexing GitHub Pages

less than 1 minute read

Published: August 28, 2021

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.