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User avatar
Site Admin

Hi all,
we are excited to announce the first public Indigo Renderer 4 beta release!

We have been working hard on this release. Following 29 private beta releases, we finally feel Indigo 4 is ready for a public beta.
Have we gotten rid of all the bugs? Not by a long shot! However, we feel that you can get useful work done with Indigo 4 right now, and that it's time for a wider audience to test it.

The main new feature in this beta is of course pure (multi-)GPU rendering.
We are using OpenCL to deliver 100% pure GPU rendering, which means very fast rendering on all OpenCL compliant GPUs, including AMD, Intel and Nvidia GPUs.

For more information please see our GPU rendering guide section in the online manual: ... ring-guide

The main point there is that you must update your drivers before doing GPU rendering, else nothing gets a fair chance to work well - always-current drivers are absolutely crucial to GPU rendering working well, it cannot be overstated!

We'd like to encourage you to download these example scenes, and report your rendering speed in this thread (along with hardware specs):

bedroom-benchmark-2016.pigs by Arthur Liebnau (
McLaren_P1_Benchmark_Optimised.pigs by Oscar Johansson (

(EDIT: Updated to more optimised version of McLaren scene, old scene is available here: McLaren_P1_Benchmark.pigs)

(See renders of these scenes at the bottom of this post)

Please bear in mind that the priority with the GPU rendering thus far has been on getting the functionality going. We expect to do a lot of optimisation work on it in the future, to really push the performance. Expect more beta releases soon!

In addition to the new pure GPU rendering, there are some other new features:

* General optimisations and rendering speedups:
* Most scenes should render faster on the CPU.
* MLT should be a lot faster for simple scenes now.
* OpenGL viewport is a lot faster
* Sped up rendering double-sided thin material a lot.
* Optimised object tree building - see viewtopic.php?f=7&t=13695
* Rewrote much of Indigo's subdivision and displacement - see viewtopic.php?f=7&t=13686
* New image saving options. (check out the 'Image Saving' tab in the options dialog)
* Added pixel info picker to toolbar
* Added a detachable material preview widget
* Oren-Nayar: Added new implementation of the more accurate model, replacing the 'qualitative' model that was being used before.
* Added measured BRDF support
* Added Fast-SSS material

We also have lots of exciting new features still planned for the 4.0 series, such as hybrid photon mapping and configurable firefly filtering. Updating the user interface and adding support for these new features to the exporters is a top priority in upcoming releases.

More information about the new GPU rendering mode

Features not currently supported in GPU rendering mode (we're working on these and they will be supported as soon as possible)
* Architectural glass
* Double-sided thin material
* Glossy transparent material
* Normal maps
* Light layers

Features not currently supported in GPU rendering mode, that probably won't be available in the initial 4.0 release but later in the 4.x series:
* Sub-surface scattering / participating media
* Bidirectional path tracing
* Other render modes / channels: material ID, foreground alpha, depth and shadows
* Sphere primitives

Known issues with GPU rendering:
* Some realtime changes in GPU rendering mode may crash Indigo
* Max path depth is limited to around 8 bounces currently
* Sphere primitives not supported currently
* Sky colour is slightly different on GPU

Thanks to our private beta testers (Zom-b, Oscar J. and kklors) for their bug reports and testing!


Indigo for Windows 32-bit:

Indigo for Windows 64-bit:

Indigo for Linux 64-bit:

Indigo for Mac OS X (10.7 - ):

Indigo RT for Windows 32-bit:

Indigo RT for Windows 64-bit:

Indigo RT for Linux 64-bit:

Indigo RT for Mac OS X (10.7 - ):

The following images are straight out of Indigo 4 without any post-processing (feel free to verify by downloading and rendering the example scenes linked above!), click to enlarge:



User avatar
Indigo 100
'The Eagle has landed!' Congrats all!

User avatar
Site Admin
Thanks pixie :)

Just waiting for that, congratulations!

User avatar
Indigo 100
yeeeeeeeeees :P

User avatar
At last! Congrats - it's going to be great. :)

Benchmarks for AMD Radeon HD 7970:

McLaren scene: 3.5 M s/sec
Bedroom scene: 1.55 M s/sec

A few of the scenes I did while testing:

McLaren_P1_Studio 4k 22 mins.jpg
McLaren_P1_Studio 4k 22 mins.jpg [ 1.92 MiB | Viewed 38351 times ]
bentley_continental_1.jpg [ 1.46 MiB | Viewed 38351 times ]
bentley_continental_2.jpg [ 844.8 KiB | Viewed 38351 times ]
carbon test 1 min render.jpg
carbon test 1 min render.jpg [ 432.11 KiB | Viewed 38351 times ]
bentley 12 mpix pp.jpg
bentley 12 mpix pp.jpg [ 3.29 MiB | Viewed 38351 times ]
1 greem lighter 2.jpg
1 greem lighter 2.jpg [ 1.08 MiB | Viewed 38351 times ]
rear 34closeup.jpg
rear 34closeup.jpg [ 917.98 KiB | Viewed 38351 times ]
bentley concept.jpg
bentley concept.jpg [ 1.09 MiB | Viewed 38351 times ]

Last edited by Oscar J on Thu Apr 07, 2016 12:22 pm, edited 2 times in total.

I have a gtx 970

Mclaren P1 4.950 M samples/s
Bedroom 2.288 M samples/s

Hi. Congrats.

GTX 980:
-McLaren: 6.508
-Bedroom: 2.740

And a silly question. Is there an actualization tax of the license or must to acquire a new license?
Thank you.

Oh I see. There is an upgrade option. But I can´t found the price of it...

User avatar

I tested the scene (Arthur Liebenau - bedroom-benchmark-2016), but there seems no obvious advantages, perhaps Intel HD Graphics 3000 512 Mb.non is enough?
Mac drivers do not seem to be available in the Intel website.
The Oscar scene after three minutes of waiting has not yet been launched!

User avatar
Site Admin
contegufo wrote:
I tested the scene (Arthur Liebenau - bedroom-benchmark-2016), but there seems no obvious advantages, perhaps Intel HD Graphics 3000 512 Mb.non is enough?

This is quite a low end iGPU, it's actually a pleasant surprise that it works :) The HD 4600 iGPU on the i7 4770k is quite a lot more powerful, and still not a major contender with the beefy 100s watt GPUs; I'm extremely interested to know how an Iris Pro iGPU on the i7 5775c performs, since it has a lot of execution units (cores, but very capable ones compared to CUDA "cores") and a ton of cache.

In some cases, for example in complex lighting situations and when there are no GPUs available, the CPU bidirectional path tracer is still very efficient / kicks ass :)

contegufo wrote:
The Oscar scene after three minutes of waiting has not yet been launched!

Wow, that's quite a long time. Which CPU do you have?

Kernel build times will surely improve in future builds, and when the NVIDIA, AMD and Intel GPU drivers can perform multi-threaded kernel compilation.

User avatar
Site Admin
yonosoy wrote:
And a silly question. Is there an actualization tax of the license or must to acquire a new license?

We'll sort out the licensing situation soon, for now only Indigo 100 licence holders can use it without restriction until we upgrade the licences created during the pre-sale period.

User avatar
Yey \o/

Attached some renders I did during testing.


2x Titan X OC
McLaren : 16.9 M
Bedroom: 6.3 M

03c.jpg [ 2.06 MiB | Viewed 38365 times ]
Untitled.jpg [ 719.91 KiB | Viewed 38365 times ]
I'm rendering the Bedroom scene on my GTX Titan and only getting 1.23 M samples/sec
I was getting 0.5M s/s with CPU only.

I do have a couple of sketchup windows open. Could they be draining resources?

I've noticed my PC has slowed right down and my GPU monitor is reading at max performance so I'm pretty sure its working.

Skindigo on 1x 6950x, 1x3970x, 6x3930k, 2x4930k, 3x5930k

User avatar
Indigo 100
Yeah!! But:

IndigoRenderer_x64_v4.0.29 ./indigo
This application failed to start because it could not find or load the Qt platform plugin "xcb".

Available platform plugins are: linuxfb, minimal, offscreen, xcb.

Reinstalling the application may fix this problem.
[1]    2121 abort (core dumped)  ./indigo

Linux 380v 4.5.0-1-ARCH #1 SMP PREEMPT Tue Mar 15 09:41:03 CET 2016 x86_64 GNU/Linux

IndigoRenderer_x64_v4.0.29 ldd (0x00007ffcfb7af000) => /usr/lib/ (0x00007f27b4a6d000) => /usr/lib/ (0x00007f27b4857000) => /usr/lib/ (0x00007f27b4653000) => /usr/lib/ (0x00007f27b444b000) => /usr/lib/ (0x00007f27b40c9000) => /usr/lib/ (0x00007f27b3dc4000) => /usr/lib/ (0x00007f27b3bae000) => /usr/lib/ (0x00007f27b380d000)
   /lib64/ (0x00007f27b4c8a000) (0x00007fffb2bd2000) => /usr/lib/ (0x00007f393fabb000) => /usr/lib/ (0x00007f393f89e000) => /usr/lib/ (0x00007f393f675000) => /usr/lib/ (0x00007f393f45e000) => /usr/lib/ (0x00007f393f120000) => /usr/lib/ (0x00007f393ed9e000) => /usr/lib/ (0x00007f393ea98000) => /usr/lib/ (0x00007f393e882000) => /usr/lib/ (0x00007f393e4e1000) => /usr/lib/ (0x00007f393e064000) => /usr/lib/ (0x00007f393dccd000) => /usr/lib/ (0x00007f393da67000) => /usr/lib/ (0x00007f393d862000) => /usr/lib/ (0x00007f393d552000) => /usr/lib/ (0x00007f393d34a000) => /usr/lib/ (0x00007f393d2c3000)
   /usr/lib64/ (0x0000562dd0a2c000) => /usr/lib/tls/ (0x00007f393d0bf000) => /usr/lib/ (0x00007f393b396000) => /usr/lib/ (0x00007f393b054000) => /usr/lib/ (0x00007f393ae42000) => /usr/lib/ (0x00007f393945e000) => /usr/lib/ (0x00007f39391ee000) => /usr/lib/ (0x00007f3938fe9000) => /usr/lib/ (0x00007f3938dd2000) => /usr/lib/ (0x00007f3938bac000) => /usr/lib/ (0x00007f3938999000) => /usr/lib/ (0x00007f39386b7000) => /usr/lib/ (0x00007f39384a3000) => /usr/lib/ (0x00007f393827f000) => /usr/lib/ (0x00007f393807b000) => /usr/lib/ (0x00007f3937e74000) (0x00007ffc1cacd000) => /usr/lib/ (0x00007feaa7b9c000) => /usr/lib/ (0x00007feaa797f000) => /usr/lib/ (0x00007feaa7769000) => /usr/lib/ (0x00007feaa73e6000) => /usr/lib/ (0x00007feaa7045000) => /usr/lib/ (0x00007feaa6bc9000) => /usr/lib/ (0x00007feaa6831000) => /usr/lib/ (0x00007feaa65cb000) => /usr/lib/ (0x00007feaa63c7000) => /usr/lib/ (0x00007feaa60b6000) => /usr/lib/ (0x00007feaa5eae000) => /usr/lib/ (0x00007feaa5e28000) => /usr/lib/ (0x00007feaa5b22000) => /usr/lib/ (0x00007feaa590c000)
   /usr/lib64/ (0x000055ab4589d000) => /usr/lib/ (0x00007feaa3f28000) => /usr/lib/ (0x00007feaa3cb8000) => /usr/lib/ (0x00007feaa3ab4000) => /usr/lib/ (0x00007feaa389c000) => /usr/lib/ (0x00007feaa3676000) => /usr/lib/ (0x00007feaa3464000) => /usr/lib/ (0x00007feaa3181000) => /usr/lib/ (0x00007feaa2f6d000) (0x00007ffe48f2e000) => /usr/lib/ (0x00007f74ae961000) => /usr/lib/ (0x00007f74ae1de000) => /usr/lib/ (0x00007f74adb14000) => /usr/lib/ (0x00007f74ad791000) => /usr/lib/ (0x00007f74ad48c000) => /usr/lib/ (0x00007f74ad0eb000) => /usr/lib/ (0x00007f74acecd000) => /usr/lib/ (0x00007f74acc7b000) => /usr/lib/ (0x00007f74ac96b000) => /usr/lib/ (0x00007f74ac628000) => /usr/lib/ (0x00007f74ac3f3000) => /usr/lib/ (0x00007f74ac177000) => /usr/lib/ (0x00007f74abf60000) => /usr/lib/ (0x00007f74abc22000) => /usr/lib/ (0x00007f74aba0c000) => /usr/lib/ (0x00007f74ab58f000) => /usr/lib/ (0x00007f74ab1f8000) => /usr/lib/ (0x00007f74aaf92000) => /usr/lib/ (0x00007f74aad8d000) => /usr/lib/ (0x00007f74aab85000) => /usr/lib/ (0x00007f74aaaff000)
   /usr/lib64/ (0x00005603dd9d1000) => /usr/lib/ (0x00007f74aa8f5000) => /usr/lib/ (0x00007f74aa685000) => /usr/lib/ (0x00007f74aa462000) => /usr/lib/ (0x00007f74aa197000) => /usr/lib/ (0x00007f74a9f6b000) => /usr/lib/tls/ (0x00007f74a9d67000) => /usr/lib/ (0x00007f74a803e000) => /usr/lib/ (0x00007f74a7e2c000) => /usr/lib/ (0x00007f74a6449000) => /usr/lib/ (0x00007f74a6244000) => /usr/lib/ (0x00007f74a602d000) => /usr/lib/ (0x00007f74a5e07000) => /usr/lib/ (0x00007f74a5bf4000) => /usr/lib/ (0x00007f74a5912000) => /usr/lib/ (0x00007f74a56fe000) => /usr/lib/ (0x00007f74a54f9000) => /usr/lib/ (0x00007f74a52f3000) => /usr/lib/ (0x00007f74a50e3000) (0x00007ffdf9ab0000) => /usr/lib/ (0x00007f1d3866f000) => /usr/lib/ (0x00007f1d382ed000) => /usr/lib/ (0x00007f1d37f4c000) => /usr/lib/ (0x00007f1d37d2e000) => /usr/lib/ (0x00007f1d37b18000) => /usr/lib/ (0x00007f1d3769c000) => /usr/lib/ (0x00007f1d37304000) => /usr/lib/ (0x00007f1d3709e000) => /usr/lib/ (0x00007f1d36e9a000) => /usr/lib/ (0x00007f1d36b89000) => /usr/lib/ (0x00007f1d36981000) => /usr/lib/ (0x00007f1d368fb000) => /usr/lib/ (0x00007f1d365f5000) => /usr/lib/ (0x00007f1d363df000)
   /usr/lib64/ (0x00005631fcc4b000) => /usr/lib/ (0x00007f1d349fb000) => /usr/lib/ (0x00007f1d3478b000) => /usr/lib/ (0x00007f1d34587000) => /usr/lib/ (0x00007f1d3436f000) => /usr/lib/ (0x00007f1d34149000) => /usr/lib/ (0x00007f1d33f37000) => /usr/lib/ (0x00007f1d33c54000) => /usr/lib/ (0x00007f1d33a40000) (0x00007fffbc9c2000) => /usr/lib/ (0x00007f4793f7b000) => /usr/lib/ (0x00007f47938b1000) => /usr/lib/ (0x00007f4793694000) => /usr/lib/ (0x00007f4793311000) => /usr/lib/ (0x00007f479300c000) => /usr/lib/ (0x00007f4792c6b000) => /usr/lib/ (0x00007f4792a35000) => /usr/lib/ (0x00007f47927b9000) => /usr/lib/ (0x00007f47925a3000) => /usr/lib/ (0x00007f4792264000) => /usr/lib/ (0x00007f479204e000) => /usr/lib/ (0x00007f4791bd2000) => /usr/lib/ (0x00007f479183a000) => /usr/lib/ (0x00007f47915d4000) => /usr/lib/ (0x00007f47913d0000) => /usr/lib/ (0x00007f47910bf000) => /usr/lib/ (0x00007f4790eb7000) => /usr/lib/ (0x00007f4790e31000)
   /usr/lib64/ (0x00005564ba079000) => /usr/lib/ (0x00007f4790b66000) => /usr/lib/ (0x00007f479093a000) => /usr/lib/tls/ (0x00007f4790735000) => /usr/lib/ (0x00007f478ea0d000) => /usr/lib/ (0x00007f478e6cb000) => /usr/lib/ (0x00007f478e4b8000) => /usr/lib/ (0x00007f478cad5000) => /usr/lib/ (0x00007f478c864000) => /usr/lib/ (0x00007f478c660000) => /usr/lib/ (0x00007f478c449000) => /usr/lib/ (0x00007f478c222000) => /usr/lib/ (0x00007f478c010000) => /usr/lib/ (0x00007f478bd2e000) => /usr/lib/ (0x00007f478bb19000) => /usr/lib/ (0x00007f478b909000) => /usr/lib/ (0x00007f478b6e5000) => /usr/lib/ (0x00007f478b4e1000) => /usr/lib/ (0x00007f478b2da000)

User avatar
But what about the promised free upgrade for users of version 3?
I'm sad

2016-04-07_09-41-57.png [ 277.24 KiB | Viewed 38105 times ]
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