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#476 2018-05-24 18:12:37

Head_on_a_Stick
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From: London
Registered: 2015-09-29
Posts: 8,759
Website

Re: Wallpapers

Slightly tweaked version of one of Mitsuba's demonstration scenes:

sssdragon.png

Dragon model courtesy of XYZ RGB.

Last edited by Head_on_a_Stick (2018-05-24 21:51:42)


“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.

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#477 2018-05-24 19:18:46

cloverskull
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Registered: 2015-10-01
Posts: 281

Re: Wallpapers

Anyone else having ssl complaints from postimg.cc? My browser (with sane security policies) won't even load it.

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#478 2018-05-24 19:27:26

Head_on_a_Stick
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From: London
Registered: 2015-09-29
Posts: 8,759
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Re: Wallpapers

^ It's fine at my end, I would have used scrot.moe but the image is too big for a non-member hmm


“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.

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#479 2018-05-25 10:27:05

altman
Member
From: Canada
Registered: 2015-10-24
Posts: 130

Re: Wallpapers

Great job in there HoaS, keep it on.


HP Pavilion dv7 Notebook/Intel Core i7-2670QM/ BunsenLab Helium
Dell Latitude XFR D630 /Intel Core2 Duo T7500/ BunsenLab Helium
Dell Inspiron 1720/Intel Core2 Duo T5450/ ArchLabs 2018.05
My craptop trio on Linux installs only.

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#480 2018-05-28 12:35:31

Head_on_a_Stick
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From: London
Registered: 2015-09-29
Posts: 8,759
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Re: Wallpapers

brontosaurusrex wrote:

hdri maps

^ Thank you so much for this suggestion, it really does make a massive difference to the overall verisimilitude of the image glasses

Mitsuba render with an HDRI lightmap:

test.png

Scene file:

https://gist.github.com/Head-on-a-Stick … 7271d32de5

The envmap.exr lightmap file was extracted from the matpreview.zip sample scene on the Mitsuba site (with the <emitter> stanza copy&pasted from matpreview.xml), just place that in the working directory with the scene file (called balls.xml) and run

mitsuba balls.xml

The sampleCount value controls the quality of the image (and hence the render time).


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#481 2018-05-28 12:52:32

brontosaurusrex
Middle Office
Registered: 2015-09-29
Posts: 1,513

Re: Wallpapers

HoaS: Nice, do 'we' have Depth of field? (That's another 'instant reality improver')

Last edited by brontosaurusrex (2018-05-28 12:57:54)

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#482 2018-05-28 14:41:17

nore
>2⁹
From: blueberry bush
Registered: 2015-09-29
Posts: 365

Re: Wallpapers

bronto: you could still tell it's not real, because there is no reflection of the  camera, or because you can't see photographer's thumb. wink

A thumb should come standard with raytracing programs, like coffee stain filter in GIMP.

Last edited by nore (2018-05-28 14:41:58)

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#483 2018-05-28 15:12:20

brontosaurusrex
Middle Office
Registered: 2015-09-29
Posts: 1,513

Re: Wallpapers

Like this
saturns1thumb.th.png
?

I agree.

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#484 2018-05-28 15:58:05

nore
>2⁹
From: blueberry bush
Registered: 2015-09-29
Posts: 365

Re: Wallpapers

lol

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#485 2018-05-28 16:36:58

Head_on_a_Stick
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From: London
Registered: 2015-09-29
Posts: 8,759
Website

Re: Wallpapers

brontosaurusrex wrote:

do 'we' have Depth of field?

Yes sir, we can boogie:

test.th.png

^ That's a low-res, low sample image with a bit of noise but it does demonstate the thinlens sensor quite well glasses

nore wrote:

there is no reflection of the  camera

Actually there is — check out the spindly black shape in the reflection in the gold ball sticking up in the middle of the checkerboard base: that's the camera on a tripod smile


“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.

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#486 2018-05-28 16:52:37

brontosaurusrex
Middle Office
Registered: 2015-09-29
Posts: 1,513

Re: Wallpapers

^ Ultra nice.

@nore
luxcore.th.png

Last edited by brontosaurusrex (2018-05-28 21:09:30)

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#487 2018-05-30 17:15:32

lbdesign
Member
Registered: 2018-05-13
Posts: 13

Re: Wallpapers

Head_on_a_Stick wrote:
brontosaurusrex wrote:

do 'we' have Depth of field?

Yes sir, we can boogie:

https://cdn.scrot.moe/images/2018/05/28/test.th.png

^ That's a low-res, low sample image with a bit of noise but it does demonstate the thinlens sensor quite well glasses

nore wrote:

there is no reflection of the  camera

Actually there is — check out the spindly black shape in the reflection in the gold ball sticking up in the middle of the checkerboard base: that's the camera on a tripod smile

How long does those things have to render? On what hardware?

Last edited by lbdesign (2018-05-30 17:15:52)

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#488 2018-05-30 19:06:04

Head_on_a_Stick
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From: London
Registered: 2015-09-29
Posts: 8,759
Website

Re: Wallpapers

lbdesign wrote:

How long does those things have to render?

That depends on the number of samples taken per pixel (sampleCount) — a quick preview image (640x400, 16 samples) can be generated in a few seconds whereas the full HD images with 512+ samples[1] take a few hours but Mitsuba seems to be significantly quicker than Blender/Cycles.

The memory usage can be prohibitive though: the XYZ RGB dragon at the top of this page can only be rendered at a small scale (using the dipole subsurface scattering BSDF) with the 4GiB I have available.

On what hardware?

ThinkPad X201 big_smile

I'll have to try and get a headless NUC renderbox or something before I burn the poor laptop out.

[1] it's best to set the sampleCount to a power of two, it makes the arithmetic tidier glasses

Last edited by Head_on_a_Stick (2018-05-30 19:08:28)


“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.

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#489 2018-05-31 06:09:49

brontosaurusrex
Middle Office
Registered: 2015-09-29
Posts: 1,513

Re: Wallpapers

Options are many, with blender/cycles you can pack the thing and send it to the remote server that has 3x gtx 1060 or send it to some render farm like sheepit (there is a person with 100 xeons connected), however in practice most of my static images are rendered on cpu (10 years old macpro xeon) and I can usually survive times lesser than 30 minutes before the project gets boring (that would depend on individual). Also most of my imaging is noncommercial.

Cli rendering notes
https://brontosaurusrex.github.io/2017/ … -with-gpu/

The new 2.8 series will have a real time eevee, if you have a hardware for that, which may be good enough for final render in some cases.

Last edited by brontosaurusrex (2018-05-31 07:28:35)

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#490 2018-06-03 20:47:45

hhh
The Dragon
Registered: 2015-09-17
Posts: 5,358
Website

Re: Wallpapers

A large package, but there are a lot of nice images in all sorts of resolutions...

https://packages.debian.org/stretch/all … s/download

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#491 2018-06-04 20:38:40

brontosaurusrex
Middle Office
Registered: 2015-09-29
Posts: 1,513

Re: Wallpapers

What happened to Clippy? (alpha)
clippy6.md.png

Last edited by brontosaurusrex (2018-06-04 20:39:13)

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#492 2018-06-05 00:32:33

lowrider
Member
From: Germany
Registered: 2015-09-29
Posts: 227

Re: Wallpapers

lol

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#493 2018-06-05 02:12:02

DeepDayze
Member
From: In Linux Land
Registered: 2017-05-28
Posts: 441

Re: Wallpapers

brontosaurusrex wrote:

Good ol' Clippy aged quite well since I first met him when using Office 97 and still enjoying life (don't forget he's still around in MS Office 2016 as an Easter Egg).

:^)


Real Men Use Linux

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#494 2018-06-05 04:20:22

hhh
The Dragon
Registered: 2015-09-17
Posts: 5,358
Website

Re: Wallpapers

Too old a package to post? Sorry.

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#495 2018-06-21 08:06:08

brontosaurusrex
Middle Office
Registered: 2015-09-29
Posts: 1,513

Re: Wallpapers

Microdisplacement experiment (moar).
bunsenMicro6d_mono_3x3_b.md.png

Last edited by brontosaurusrex (2018-06-27 19:04:55)

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#496 2018-06-30 20:20:19

hhh
The Dragon
Registered: 2015-09-17
Posts: 5,358
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#497 2018-07-01 21:32:36

redrobo66
Member
Registered: 2018-03-18
Posts: 25

Re: Wallpapers

Some new wallpapers - mostly taken from various distros and given the Bunsen treatment:


43137941271_ef7decca0b_n.jpgFabric by Rob Holt, on Flickr

41326673080_9c8b68b8cd_n.jpgBunsen crystal grey2 by Rob Holt, on Flickr

29266234538_39c474340a_n.jpgCrysisBL by Rob Holt, on Flickr

41326641810_072a4cb2e2_n.jpgBL-Debian-dark-hr by Rob Holt, on Flickr

29266209798_72c6e73d91_n.jpgBL-Debian-dark2-lr by Rob Holt, on Flickr

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#498 2018-07-10 02:23:47

obscurant
Member
Registered: 2017-08-06
Posts: 92

Re: Wallpapers

ikVVhwGm.png

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#499 2018-07-10 02:46:12

hhh
The Dragon
Registered: 2015-09-17
Posts: 5,358
Website

Re: Wallpapers

^ I do love me some Deckard. Was the aliasing on the text intentional?

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#500 2018-07-10 07:06:12

obscurant
Member
Registered: 2017-08-06
Posts: 92

Re: Wallpapers

hhh wrote:

^ I do love me some Deckard. Was the aliasing on the text intentional?

Yeah, I wanted it to look arcade like. Maybe the text should be antialiased.

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