Friday, August 6, 2021

A call to brute force

 In the writing of the new edition of Marschner's and my graphics text, we tried to add more "basics" on light and material interaction (I don't mean BRDF stuff-- I mean more dielectrics) and more on brute force simulation of light transport.  In the "how would you maximally brute force a ray tracer) we wrote this:

 

Basically, it's just a path tracer run with *only* smooth dielectrics and Beer's Law.  If you model a scene with all the microgeometry and allow some of it to absorb, you can get colored paint with a rough surface.  Here is an few  figures from my thesis (and it was an old idea then!):



Doing the brute force path tracing is slow and dealing with the micro-particles is slow, so we invent BRDFs and other bulk properties, but that is all for efficiency.  When we wrote this, which is a classic treatment people use in the classroom all the time, we were thinking it was just for education and  for reference solutions (like Eugene d'Eon has done for skin for example), but since Monte Carlo path tracing is almost infinitely parallel, why not do this on a huge crowd sourced network of computers (in the spirit folding@home)?

I am thinking for images of ordinary things whose microgeometry would be easy to model.  For example a lamp shade with a white lining:


Another example of something very complex visually that might be modeled procedurally (https://iswallquality.blogspot.com/2016/07/fresh-snow-close-up-wallpaper-hd.html):

 


Or a glass of beer or... (on and on).

So what would be needed:

  1. some base path tracer with a procedural model we could all install and run
  2. some centralized job coordination server that doled out random seeds and combined results 
  3. an army of nerds willing to do this with idle cycles rather than coin mining

I don't have the systems chops to know how to best do this.  Anyone?   I will take the discussion to twitter!

 








26 comments:

  1. Perhaps you could actually coin this as a currency itself like David Segal.

    ReplyDelete
  2. That's an interesting idea. I do think its doable, but I don't know about it being a cycle-stealing type of a deal. I mean the remote clients participating would all need to have the same BVH tree and stuff loaded. Reconstructing the BVH for a single ray wouldn't make sense.

    ReplyDelete
  3. Getting essay help from The Tutors Help is simple:
    ● Submit Your Requirements – Give us the topic, word count, deadline, and further requirements.
    ● Get a Quote – We will send you a reasonable quote for the work.
    ● Essay Writing Starts – We will present a good essay according to your specifications.
    ● Get Your Essay – Receive the essay according to timed agreement and read it.
    ● Request Revisions (If Required) – In case you have any revision, we will be working on them for you.
    Final Thoughts
    Essay writing doesn't have to be a nightmare! If you are bogged down by an assignment, all you need to do is ask The Tutors Help to "Do My Essay" and we will make it happen. Our professional writers render your essay research-conscious, perfectly formatted, and within deadlines.
    Make essays a dream rather than a nightmare—¯The Tutors Help today and gain the assistance you desire to be a success at academics!

    https://www.thetutorshelp.com/do-my-essay.php


    Do My Essay

    ReplyDelete
  4. Accounting is a serious subject, but accounting-based topic essays don't come easy. If accounting statements, taxes, or audits are giving you a headache, we can assist at The Tutors Help.
    No more angst over accounting essays! Chat on The Tutors Help today for expert guidance and ace A's with ease.
    https://www.thetutorshelp.com/accounting-essay-help.php

    Accounting Essay Help

    ReplyDelete
  5. Essay writing doesn't have to be a stressful experience if you utilize The Tutors Help. You can receive professional custom essay writing services that simplify your academic life. You require research assistance, writing, or editing, and we are here to help you.
    We will do your essays while you concentrate on studying and realizing your academic objectives. Chat with The Tutors Help today for expert essay writing services!
    https://www.thetutorshelp.com/custom-essay-writing-services.php

    Custom Essay Writing Services

    ReplyDelete
  6. It was any amazing article A call to brute force I really appreciate the effort you put into this article you can check out here digital marketing courses in pune

    ReplyDelete
  7. With assignment help Bristol, students receive expertly crafted, plagiarism-free, and well-structured assignments, ensuring academic excellence with professional guidance and prompt assistance.

    ReplyDelete
  8. As someone who’s fairly new to this topic, I found your post incredibly helpful. I didn’t feel overwhelmed or lost like I usually do when reading technical articles. You explained everything so clearly and kept it beginner-friendly without dumbing it down. Truly appreciated! HealthyPa

    ReplyDelete
  9. Apna Showroom presents the perfect combo for divine divas! Featuring a Brass Gangajal Kalash, Feng Shui tortoise to balance vibes, powerful crystal, sacred Shaligram Shivling, and bold fishnet stockings, this set speaks to the woman who blends poojaApna Showroom Imported black and beige pantyhose stretchable stockings for women beige skin color pantyhose stockings for women Girls free size and pac of 2 stockings
    Apna Showroom Girl's Cotton Panties Set 80 size girl's panty - 30 waist women panties kachchi Girl_Undergarments Multicolour, 30)
    Apna Showroom hair clutches clutchers clips for women girls hair clips combo set for women And Girls pack of 6
    Apna Showroom Baby Girl's Knee-Length Dress Frock Skirts (Black 6-12 Months or 1 Years baby dress birthday dress black frock
    Apna Showroom Unisex Baby's Cotton Panties/Underwear Pack of 12 for 18-24 months 1-2 years baby panty
    with passion. Perfect for home sanctity or confidence rituals, this 5-in-1 combo radiates feminine energy. Elevate your home, uplift your spirit, and own your unique essence. Shop now and be the goddess you are meant to be.

    ReplyDelete
  10. Gujarat has become a trusted name in the chemical manufacturing sector, offering top-grade solutions to industries across the globe. If you're searching for a reliable Sodium Acetate Anhydrous Manufacturer in Gujarat, you’ll find experienced producers committed to delivering high-purity products suited for applications in textiles, food preservation, and laboratory use. These manufacturers maintain strict quality control to ensure consistency and performance. Equally impressive is Gujarat’s presence as a leading Magnesium Sulphate Manufacturer, supplying this essential compound to agriculture, pharmaceuticals, and chemical industries. Known for its versatility and effectiveness, magnesium sulphate from Gujarat-based manufacturers meets both domestic and international standards. The state’s industrial infrastructure, skilled professionals, and commitment to timely delivery make it a preferred destination for sourcing high-quality chemicals. Businesses looking for dependable partners in chemical supply should certainly consider Gujarat’s manufacturers for their exceptional quality and service.

    ReplyDelete
  11. Mirra Clothing’s Handloom Tussar Silk Saree Online Collection is to be paired with silk blouses that have some embellishments done on the fabric.

    ReplyDelete
  12. Amazing and useful blog...
    SynaBoost- official website buy SynaBoost
    SynaBoost is a premium dietary supplement formulated to enhance brain function and support overall cognitive well-being.
    Buy SynaBoost

    ReplyDelete
  13. Amazing and useful blog...
    Astro Manifestation - official website buy Astro Manifestation
    Astro Manifestation serves as a roadmap to uncover your inner strengths and fulfill your dreams. It acts like a supportive friend, providing insights.
    Buy Astro Manifestation

    ReplyDelete
  14. Amazing and useful blog...
    Progenifix | Official Website
    Progenifix is a premium dietary supplement designed to help individuals achieve their weight loss goals while supporting overall health and wellness.
    Buy Progenifix

    ReplyDelete
  15. Thanks for sharing this blog...
    Acidaburn | Official Website
    Acidaburn is the breakthrough weight loss supplement that promises to help you shed those unwanted pounds without the need for extreme dieting or excessive exercise.
    Buy Acidaburn

    ReplyDelete
  16. Thanks for sharing this blog content this is useful and helpful... keep sharing...
    ProstaStream - Official Website Healthy Prostate Supplement buy ProstaStream
    ProstaStream is a natural dietary supplement designed to support overall prostate health. It targets common issues related to an enlarged prostate.
    Order ProstaStream

    ReplyDelete
  17. This comment has been removed by the author.

    ReplyDelete
  18. This comment has been removed by the author.

    ReplyDelete
  19. Wonderful post! We are linking to this great article on our site. Keep up the great writing.

    Explore our asus service center in mumbai and experience top-notch laptop repair & upgrade solutions.

    ReplyDelete
  20. EUROPESNUS ICEBERG snus delivers long-lasting satisfaction with every dip.

    ReplyDelete