Full transcript
0:00hi everyone in this video we're gonna
0:02learn about post processing and
0:05rendering like this in photoshop i'm
0:07gonna show you my techniques for doing
0:09that and as you can see in general the
0:12image quality straight out of blender is
0:16pretty good i would say the only concern
0:19of mine would be maybe this
0:21area here if we compare it to the
0:24reference
0:26well
0:26it
0:27could have just a little bit less
0:29reflections but i guess that's that's
0:32really not that much of a problem other
0:34than that the rendering looks pretty
0:36good
0:37so we're gonna try matching the colors
0:40the general feel of this reference and
0:44yeah let's see how we can do this
0:47as you can see here i'm using 8-bit
0:49image as a starting point for my
0:52post-processing in photoshop because
0:54well we don't have that many contrasts
0:57within this image so i don't feel like
1:00using 16-bit images necessary i was
1:02already testing it to be honest with you
1:04and there was no difference so
1:07if if you're not really forced to use
1:1116-bit image if you don't really see
1:14uh the color problems within an image
1:17then i would say using eight bits is
1:19enough so yeah but enough of talking
1:22let's start working the first thing
1:24i always do is using the selective
1:27layers from here and the first one i
1:29always go with is the exposure so
1:32i'm increasing the brightness of my
1:35image just a little bit
1:38so you can see i'm using the value of 25
1:41here which gives us a little bit of
1:43brightness here in the central area but
1:45not too much so we don't get those
1:48colors overburned and after doing that
1:51i'm adding the curves layer
1:54and with
1:56two handles i'm usually starting with
1:58the upper one increasing the brightness
2:01just a little bit more
2:03and then i add second handle here
2:06which
2:07darkens those midtones just a bit
2:10and in overall that improves the
2:13contrast in my image so you can see if i
2:15disable the curves layer
2:18this is the effect i think it's a little
2:20bit too strong so i will reduce the
2:23opacity by
2:25say 35 percent
2:29then next step is adding the color
2:32balance
2:33layer
2:34and here we're gonna look
2:37for
2:38the color balance we have here in the
2:40reference so i'm gonna start with mid
2:43tones
2:44and
2:45play around with this slider move it uh
2:48left and right you can do this by
2:51pointing your mouse cursor
2:53and using the scroll
2:55to increase the increment you just hold
2:57the shift key and you can now
2:59change this value by every 10 steps
3:03so i think if we move towards the reds
3:05that's not the
3:06thing we're looking for let's move
3:08slightly to the same color
3:12and i think it's
3:13well
3:14it resembles just a little bit more
3:17the reference now i'm going to play with
3:18the yellow and blue values blue is
3:21definitely not the one we
3:23need to go with so i would stick
3:26with the yellows and compare it
3:30to the reference
3:35so i think we could reduce the same
3:37color just a little bit let's maybe
3:41keep it at five
3:43and now let's go to the shadows and
3:46again i'm just freely playing around
3:48with the handles with which one of with
3:51each one of the color
3:53uh channels
3:55so i see
3:56if there is any one of them that
3:59influences the image
4:01the most significant way that i'm
4:02looking
4:03for so i would say maybe increasing the
4:06greens in the darker areas just a little
4:09bit
4:10might be necessary in our image let's
4:13maybe
4:14add just a little bit of reds
4:18so we get this
4:19wooden color
4:21a little bit into the reddish tone
4:24and as a final step
4:27i usually go with the blue
4:29tint in the highlights
4:32now it's a little bit too much so let's
4:35also reduce it to maybe
4:37four
4:39so with the color balance applied i'm
4:41now
4:42comparing both of the results and i'm
4:45also
4:46using the reference just to see i think
4:48we are
4:50kind of matching the look
4:53um the wooden color is a bit off maybe
4:57but not that much in my opinion so
5:00we pretty much nailed it i would say
5:03maybe
5:04um
5:05reducing the yellow here just a little
5:09bit
5:10let's maybe keep it at seven
5:13i would say that really does it so you
5:15can see
5:16if we disable all of the steps the
5:19changes are quite significant but not
5:22that big if you just switch one layer
5:26after after another the changes aren't
5:28that big and you might not even notice
5:30them especially the color balance it's
5:33not that significant at the moment and
5:36the the way you should do
5:37post-processing is a little bit like
5:40with makeup
5:41so you really don't want to overdo it
5:44you prob each one of you probably knows
5:46how a bad and overdone makeup looks like
5:50and this is something we really want to
5:52avoid within our image that's why
5:55i
5:56i usually prefer to have a very good
5:59input a raw rendering and a good quality
6:02it's kind of the same
6:04well as in real life if you're
6:06not the most pretty person
6:09it doesn't matter how much makeup you're
6:11gonna apply
6:13it wouldn't necessarily help you and if
6:16you overdo it
6:17definitely doesn't help you so um yeah
6:21yeah i think you get my point it's the
6:23same with the renderings we just want to
6:26do those slide slide steps one after
6:29another and just control what's
6:32happening
6:33in the image we want to avoid
6:35those extreme
6:38effects like this one for example
6:41it might look kind of cool but it's very
6:44amateurish and yeah we definitely don't
6:46want to do this
6:49so getting back to the actual work
6:52another
6:53layer i'm using
6:55is this selective color layer and what
6:57it allows me doing is fine tuning
7:00a very narrow spectrum of color within
7:03the scene so you can see if i use this
7:05slider
7:06what changes within my scene is actually
7:09just the wooden color
7:11and yeah it's a very very handy layer
7:14that allows you to
7:16almost hand pick a color you want to
7:19fine-tune so let's let's do it with the
7:22wood but not that much as i'm doing
7:26right now
7:27let's maybe
7:29reduce the reds within this material
7:32just a little bit you can see
7:35a bit of color flickering when i'm on
7:38this hiding and unhiding this layer
7:41and let's also
7:42darken it just a little bit
7:47maybe like that
7:50now i'm gonna switch to the yellow color
7:53and you might think there's no yellow
7:55within our scene but when i try
7:58modifying it you can also see it
8:00actually affects the
8:02red and green colors
8:04i think it's a little bit
8:06it's shifted a little bit too much
8:08towards greens in photoshop in my
8:10opinion but
8:11um yeah as with color balance i suggest
8:14just playing around with the sliders
8:17seeing what's happening around the scene
8:19and choosing the setting you well
8:23you feel the most comfortable with so
8:25for example if i
8:27move
8:28the magenta slider towards this area
8:30just a little bit
8:32let's see what happens if we move the
8:34yellow
8:37color
8:40i think keeping it around this area
8:42might also improve the image
8:44and let's see the blacks as well
8:50maybe just a little bit like that i'm
8:52gonna skip the other colors because we
8:56just want to
8:57fix the wooden material so let's switch
8:59this area on and off we can clearly
9:03see the difference
9:04i think it's a little bit too much so
9:07let's again decrease the opacity of this
9:10layer by 40 percent
9:12and i would say
9:14that looks pretty pretty good maybe it's
9:17still a bit too much so i'm gonna
9:19decrease it to 40.
9:23and i would say i'm pretty happy with
9:25the result we have right now so the next
9:27step it's not necessarily something you
9:30have to do but
9:32i like decreasing the saturation around
9:36my image just a little bit
9:38so i usually go with 20 and then play
9:41with the opacity because
9:4310 is i don't think
9:46it's that visible so yeah instead of
9:49changing the opacity let's just decrease
9:51it to 15
9:54and
9:55in order i'm also going to decrease the
9:57opacity just a little bit so it's not
10:00that
10:02that visible and
10:05one of the tricks you can use in in
10:07order to increase a general contrast
10:10within the image is using the
10:12levels so i'm gonna
10:14move this handle by the value of 10
10:18towards the center and i'm also going to
10:20move this
10:21handle by the value of 10
10:24so
10:25this is what we are getting it flattens
10:27out
10:28the
10:29and the spectrum of this histogram so we
10:32get well just a little bit more of
10:35contrast within the image
10:38and if you asked me that's basically it
10:42as for the color tweaking so you can see
10:44if i disable all of the layers all
10:46together
10:47we can see the combined result it's
10:50actually pretty significant so this
10:52image looks
10:54well too washed out in my opinion and
10:57out of color
10:58once we apply our color correction it
11:00really has this nice
11:03feel very similar to what we have in the
11:06reference in my opinion at least so the
11:09final two touches
11:11one of them i always apply so i've just
11:14duplicated both of those layers i'm now
11:17gonna
11:18merge them so we have a copy of our
11:21setup here and i'm gonna apply
11:24the sharpening to
11:27that merge layer so i'm using the
11:29unsharp mask
11:31and the values i usually stick to within
11:34this resolution is 60
11:36and
11:370.6 pixels
11:40once i do this when we zoom into the
11:42image
11:43by the way you can see we could have
11:45disabled bomb here but let's leave it
11:48like this it's not that visible
11:51i'm just saying
11:53so if we
11:55disable this layer and enable it you can
11:57see the image gets this
11:59touch of crispiness within those details
12:02within the edges i usually don't use it
12:04at 100
12:06reduce it to 70 or 60.
12:09so yeah this is one of the touches i
12:11really like adding but keep in mind you
12:14really have to you really need to have a
12:17noise free image
12:18in order for that to work properly
12:21because when you have noise well this
12:23will also increase its visibility
12:26so yeah please keep that in mind
12:29and the final final final touch
12:32i like adding not in every image but
12:35let's see how it looks in this one is
12:37the vignetting
12:39in the corners so it's this darkening
12:41effect sometimes people overdo it
12:44um the way i apply it is as you could
12:47see i've created a new layer filled it
12:49with white color the shortcut for that
12:52is alt backspace in photoshop
12:55now i'm going to the filter
12:57lens correction
12:59and
13:01you can see this is what we have by
13:04default i don't know why i can go full
13:07screen but doesn't matter let's go to
13:09the custom settings here and you can see
13:11we have vignette
13:13settings
13:15sliders here so i'm just using something
13:18quite rough like this maybe
13:21um
13:22yeah maybe something like that
13:25just apply okay and now i change
13:28the mix
13:29method of this layer to multiply so we
13:32only get the one and the black colors
13:35the dark colors to be visible you can
13:37see
13:38how the effect changes our scene so
13:43usually the maximum value i use for that
13:46is
13:4730
13:49so it's not that
13:51well brutal
13:54in
13:55in terms of influencing the rendering i
13:57think 30 percent is definitely okay so
14:00yeah that would be it let me now switch
14:02to the black background so we can see
14:05the image better i would say that's
14:08that's actually it for post processing
14:10of that image since it's it was a very
14:13good input material we really didn't
14:15have to do that much around it to get
14:18this very very nice
14:20photorealistic look so thank you for
14:23watching and we will now see how to
14:26well we will try to get the same effect
14:28in blender compositor so
14:31stay tuned thank you guys for watching
14:33this video is part of my interior
14:34visualization course in blender which
14:36you can watch for free on youtube all
14:38the necessary details and link to the
14:40full playlist can be found in the video
14:42description if you want to support what
14:44i do and access all of the 3d files used
14:47in this course plus blender ready
14:49interior setups and over 2 000 blender
14:51exclusive 3d models just visit the choco
14:53for store and learn more about our
14:56subscription plans again thanks for
14:58watching and i see you soon