Sign In
Sign in
English

TopBanners12060403.jpg

Olivier Boscournu is the winner of the Render of the Week Award for the week of  May 14, 2012.
 Other than Yafaray, Olivier has succeeded in duplicating his convincing "Bidirectional Interior with Yafaray" scene in BI and Cycles as well.
What difference did he discover in using all these Blender's three major render engine?
 Olivier has the following observation to share.
The following article may not reflect the official view of www.BlenderNews.org.—Editor in Chief.


Comparison_BI-Yafaray-Cycles copie.jpg


June 4, 2012 12:40 AM

 

by Olivier Boscournu

 

Blender is a free 3D software package and is ideal for small studios or freelance CG artists who need to provide cost-effective and quality 3D renders. Still in development, the new Cycles render engine has been integrated since the 2.61 version, with GI render and GPU support. Still young, it offers a Pathtracing method which is very effective for outdoor rendering or a render for open stages where light spreads easily. For interior renderings, I usually work with Yafaray, which is very easy to configure and offers several lighting solutions, but it only calculates with CPU. I named this picture "Bidirectional Interior," because it was rendered with the Bidirectional Pathtracing method of Yafaray. Having never tried this, I decided to test it to see its performance. This unbiased solution is relatively slow, even if we take it into account that it's being rendered just by CPU. I also wanted to compare the Blender Internal to check if it's able to perform for an indoor scene.


Blender Internal

With no add-on required and easy to use, it's more ideal for beginners. It's suitable for product/studio rendering, similar to Direct Lighting of Yafaray and Cycles, where Global Illumination and light bounces are not useful. To accentuate the realistic, BI offers two solutions for ambient occlusion, an approximate and raytraced one. The latter is a little bit slower but is also more precise, it is this that I used for this scene. The materials are typically configured, without going through the nodes but by using multiple channels and different textures. Two lights illuminate the room, a lamp into the lamp and an area on the right to simulate the light from a window. It is important to increase the samples of lamps for soft shadows. The more complicated with the internal is to simulate the bounce light. Fortunately, it is possible to make many different passes that are very useful in post-production. BI-config.jpg


Yafaray 0.1.2 

My favorite! Its greatest advantage is the ease of use in configuring the engine and materials. The speed of Photon Mapping is quite impressive, and the Direct Light method is faster than that of BI. Six different shaders seem to be short but you can configure most of the needed materials for an interior rendering. For me, Yafaray is a free "Vray" even if it doesn't provide as many render passes.

Yafray-config.jpg


Cycles 

I use Cycles very rarely, except for projects involving furniture design, where the real-time preview is very practical. Unbiased calculation is rather long with the CPU, so it is imperative to have a good GPU, preferably with Nvidia Cuda, to take full advantage of the acceleration to reduce the rendering time significantly. The materials are configured with the nodes that allow a great flexibility in the creation of complex shaders.

Cycles-config.jpg


Conclusion

So, my observation is ....

BI-Yafray-Cycles-Compare.jpg

List of Articles
Subject Date Viewssort
Tutorials Free Online Blender Tutorials Released in 2017 Worthy of Your Note - for Animation & VFX file Jan 09, 2018 58110
Tutorials Top 12 Free Online Blender Tutorials Released in 2017 file Jan 09, 2018 59205
Tutorials Free Online Blender Tutorials Released in 2017 Worthy of Your Note - for CG, Games & Viz file Jan 09, 2018 58994
Blender Retrospectives 2017 Blender Retrospective file Jan 01, 2018 61504
Render of the Year Render of the Year Awards 2017: Winners Annouced file Dec 26, 2017 59774
Tutorials Free Online Blender Tutorials Released in 2016 Worthy of Your Note file Jan 16, 2017 189441
Tutorials Top 12 Free Online Blender Tutorials (Videos) Released in 2016 file Jan 16, 2017 186531
Blender Retrospectives 2016 Blender Retrospective file Dec 29, 2016 228535
Render of the Year Render of the Year Awards 2015: Seven Winners Annouced file Jan 20, 2016 248993
Blender Retrospectives 2015 Blender Retrospective file Jan 12, 2016 241957
Tutorials Top 12 Free Online Blender Tutorials Released in 2015 file Jun 26, 2015 241303
Tutorials Free Online Blender Tutorials Released in 2015 Worthy of Your Note file Jun 26, 2015 241992
Render of the Year Render of the Year Awards 2014: Five Winners Annouced file Jan 02, 2015 276994
Tutorials Top 12 Free Online Blender Tutorials Released in 2014 file Dec 11, 2014 277265
Tutorials Free Online Blender Tutorials Released in 2014 Worthy of Your Note file Dec 09, 2014 308078
Blender Features BI vs. Cycles vs. Yafaray - an Artist's Observation file Jun 05, 2012 244015
Tutorials How to Add Automatic Dirt / Patina - Daniel RadialRonnie Metien's Way file Jun 04, 2012 92490
Render of the Week Bidirectional Interior with Yafaray - by Olivier Boscournu - the Winner of the Week of May 14, 2012 file May 14, 2012 53885
Blender Features Diamond Dispersion in Cycles Revealed file Apr 06, 2012 53835
Render of the Year Render of the Year Awards 2012: Five Winners Announced file Jan 01, 2013 52230

(C) 2012. All rights reserved. www.blendernews.org