Sign In
Sign in
English

TopBanners12072302.jpg

This is a follow-up article of BI vs. Yafaray vs. Cycles - an Artist's Observation published on June 4, 2012 by Olivier Boscournu,
 the winner of the Render of the Week Award for the week of May 14, 2012. 
The following article may not reflect the official view of www.BlenderNews.org.—Editor in Chief.

July 2, 2012 8:00 AM

by Olivier Boscournu

After " Bidirectional Interior" where I did compare the 3 renderers for an indoor scene, I decided to do the same for an outdoor arch viz.

Exterior-BI-Yafaray-Cycles.jpg
Blender Internal: 12 min.
Yafaray (Photon Mapping): 18 min.
Cycles with GTX460: 9 min.

The goal is not to get the same renderings, but to observe what happen when you switch between the three methods, with as lest changes of settings as possible (only shaders & lights). The three renderings have almost the same post-compositing based on the BI passes (Blender nodes, color correction, vignetting, fog effect,...). The scene is not really complex (a simple snow ground, basic architecture, few furnitures, ...), the shaders are not sophisticated. The forest is made with a particle system and only one birch tree made with a slaping add-on. The sky lighting is obtained with an UVmapped hemisphere, used as an emit object for shader. This simple method provides good and fast results for all kinds of render engine, saving lot of time. 

Making-of-OAV12072302.jpg

Of course, BI doesn't have a Global Illumination solution, but GI is not really necessary for outdoor scene, specially in this case, and the Ambient Occlusion can be very usefull to simulate this kind of lighting with an HDR environnement. I believe, every new Blender user must learn to know how to use the Blender Internal. The method is quite old, but you get to learn a lot about how to configure the textures and lightings. It's useful for improving your technical skills. Blender Internal is pretty fast and versatile with several of rendering passes.

After BI, I've needed just a few minutes to configure the lighting method and the shaders in Yafaray. That's what I love with Yafaray, its workflow is very easy and fast, providing good results. New users can easily see that. Renderings are pretty fast that it's helpful for configuring the right settings and the border render allows fast previews on focalized areas. The rendering with Yafaray and it GI solution is 50% slower than BI on the same size (1600 x 1200 px), but it's pretty fast and requires less tweaks in lightings.

Cycles still has much room to be improved but is very efficient for outdoor--unlike for indoor arch viz. This is because it uses only a Pathtracing integrator, more suitable with opened scene and huge light source. To produce the final rendering, I had to convert each shader to make it fit for Cycles. I like the versatility and the power of its node shaders, but it's imperative to have a good CUDA graphic card with you so as to benefit from the full potential of this render engine. That's why I used my Nvidia GTX 460 (1 GB RAM & 336 CUDA cores) to get a good rendering time. With CPU it would take more than one hour!

Exterior-BI-Yafaray-Cycles-Settings.jpg

Conclusion
With a simple outdoor scene as in this case (no transparent leaves on trees, no grass,etc...), Blender users will be able to use different methods and renderers. With BI, the basic solution, you can do the job but you needs more tweaks and extra time to enhance the result. Yafaray, as external GI and biased solution, is the fastest and easiest way to get a photorealistic result on CPU! After passing a little time to know Yafaray, it's a real pleasure. As for Cycles, it's very useful with the realtime preview, and its node system provides incredible results. But in most cases, You need a good--sometimes expansive--Nvidia graphic cards.


Hardware spec.:
intel i7-2600k ( 3,4GHz), 16 Go DDRam, Nvidia GTX 460 1GoRam ( 336 cuda cores), windows7 64bits. Yafaray & BI rendering processed with 4 cores CPU, Cycles render on GPU. Made with official Blender 2.63a-64bits & official Yafaray 0.1.2 beta5a-64bits.

Related Links:
1. http://www.blendernation.com/2012/06/16/bi-vs-cycles-vs-yafray-an-artists-observation
2. http://www.olivier-boscournu.com
3. http://blenderartists.org/forum/showthread.php?256953-Comparison-BI-Yafaray-Cycles-for-outdoor-archiviz
List of Articles
Subject Datesort Views
Blender Retrospectives 2020 Blender Retrospective Feb 20, 2021 211065
Tutorials Free Online Blender Tutorials Released in 2019 Worthy of Your Note - for Animation & VFX file Jan 25, 2020 563187
Tutorials Free Online Blender Tutorials Released in 2019 Worthy of Your Note - for CG, Games & Viz file Jan 25, 2020 426279
Tutorials Top 12 Free Online Blender Tutorials Released in 2019 file Jan 25, 2020 432033
Tutorials Top 15 Highest-Rated Free Online Blender Tutorials Released in 2019 file Jan 25, 2020 375938
Tutorials Free Online Blender Tutorials Released in 2018 for Blender 2.8 file Jan 23, 2019 345084
Tutorials Free Online Blender Tutorials Released in 2018 Worthy of Your Note - for CG, Games & Viz file Jan 23, 2019 684372
Tutorials Free Online Blender Tutorials Released in 2018 Worthy of Your Note - for Animation & VFX file Jan 23, 2019 408463
Tutorials Top 12 Free Online Blender Tutorials Released in 2018 file Jan 23, 2019 344990
Render of the Year Render of the Year Awards 2018: Winners Annouced file Jan 02, 2019 381717
Blender Retrospectives 2018 Blender Retrospective file Jan 02, 2019 376123
Tutorials Top 12 Free Online Blender Tutorials Released in 2017 file Jan 09, 2018 969066
Blender Retrospectives 2017 Blender Retrospective file Jan 01, 2018 696859
Render of the Year Render of the Year Awards 2017: Winners Annouced file Dec 26, 2017 550827
Tutorials Top 12 Free Online Blender Tutorials (Videos) Released in 2016 file Jan 16, 2017 765474
Blender Retrospectives 2016 Blender Retrospective file Dec 29, 2016 1060378
Render of the Year Render of the Year Awards 2015: Seven Winners Annouced file Jan 20, 2016 790625
Blender Retrospectives 2015 Blender Retrospective file Jan 12, 2016 762340
Tutorials Top 12 Free Online Blender Tutorials Released in 2015 file Jun 26, 2015 805688
Render of the Year Render of the Year Awards 2014: Five Winners Annouced file Jan 02, 2015 813918
Tutorials Top 12 Free Online Blender Tutorials Released in 2014 file Dec 11, 2014 852777
Product Visualization PRODUCT VISUALIZATION IN BLENDER for the week of November 19, 2012 file Nov 19, 2012 44302
Render of the Week 'dune_boiserie' by Gabriele Mariotti and Alan Zirpoli - the Winners of the Week of November 19, 2012 file Nov 19, 2012 46904
Architectural Visualization ARCHITECTURAL VISUALIZATION IN BLENDER for the week of November 12, 2012 file Nov 13, 2012 47570
Render of the Week 'Wheelchair House' by Dion Moult - the Winner of the Week of November 12, 2012 file Nov 12, 2012 95318
Render of the Week 'The Most Beautiful Beach' by Matej Hudak - the Winner of the Week of November 5, 2012 file Nov 05, 2012 44376
Render of the Week 2012 Bi-annual Render of the Week Award Video, from April 30 through October 22 file Oct 30, 2012 41659
Product Visualization PRODUCT VISUALIZATION IN BLENDER for the week of October 22, 2012 file Oct 23, 2012 48165
Render of the Week 'Alien - Battle' by Alessandro Chiffi - the Winner of the Week of October 22, 2012 file Oct 22, 2012 55661
Render of the Week 'Alpha Rest Room' by Enrico Cerica - the Winner of the Week of October 15, 2012 file Oct 15, 2012 90227
Suzanne Awards 2012 SUZANNE AWARDS WINNERS ANNOUNCED file Oct 14, 2012 35843
Render of the Week 'Fantasy Ambient' by Cristian Enache - Winner for the Week of October 8, 2012 file Oct 09, 2012 47167
Render of the Week 'Fire Flower' by Alexey Lugovoy - Winner for the Week of October 1, 2012 file Oct 01, 2012 54659
Architectural Visualization ARCHITECTURAL VISUALIZATION IN BLENDER for the week of October 1, 2012 file Oct 01, 2012 49428
Production Focus TEARS OF STEEL: Online Release & Production Files file Sep 27, 2012 41580
Render of the Week 'Island' by Agustin Benavidez - Winner for the Week of September 24, 2012 file Sep 25, 2012 56357
Product Visualization PRODUCT VISUALIZATION IN BLENDER for the week of September 17, 2012 file Sep 17, 2012 53404
Render of the Week 'Forest Path' by Igor Kozyrev - Winner for the Week of September 17, 2012 file Sep 17, 2012 48396
Render of the Week 'Snail' by Maciej Stokowiec - Winner for the Week of September 10, 2012 file Sep 10, 2012 45141
Product Visualization PRODUCT VISUALIZATION IN BLENDER for the week of September 10, 2012 file Sep 10, 2012 49041
Architectural Visualization ARCHITECTURAL VISUALIZATION IN BLENDER for the week of September 3, 2012 file Sep 03, 2012 60423