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sirpalee

Member Since 16 Apr 2007
Offline Last Active Sep 24 2014 07:01 AM

Posts I've Made

In Topic: Javascript / HTML5 best practices

25 January 2013 - 05:18 AM

Hi everyone!

 

Thank you for the tips, and links they are really useful. It seems that I have to think a bit differently, than with c++ :) .

 

Cheers,

Pal.


In Topic: Ray tracing fur/hair

05 August 2011 - 04:04 AM

ATM arnold has the best fur / hair rendering capabilities, and they use some curve - ray intersection code (though heavily optimized).

For example mental ray dies with area lights and hair geometry (and you would need to use different light rigs for hairs), while arnold is perfectly fine with huge amount of line geometry. There were a great paper about his, but I can't find it right now...

In Topic: BRDF / BTDF pdf

20 June 2011 - 06:44 AM

But from the code it's clear he isn't doing MIS, but Russian roulette sampling. Notice that the pdf he is dividing by has nothing to do with the BRDF being sampled, it's equal to the percentage of light that is reflected by the objects (as opposed to refracted). So dividing by pdf makes no sense.


True. Then he should try using MIS :)

In Topic: "Real-Time Rendering" vs "Physically Based Rendering: From Theory...

10 June 2011 - 08:34 AM

PBRT(2) is a definitive book for graphics programmers, especially the ones who are working with raytracers. However if you are into games, it won't be the most useful one for you, since ray-tracing is quite rarely used in the game engines (there are some uses, but not for the whole rendering pipeline).

In Topic: studyng bsp

10 June 2011 - 08:12 AM

Do not use BSP. They are too slow to build... Try some kind of BVH, they are efficient, and pretty fast to build (and fast to traverse too). There are a lot of techniques that are allow you to build them even on the gpu.

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