Original subtitles

After we've done the post pro work, how should we save the final image?

now we stand on the crossroad, we can use either 8-bit display referred format or 32-bit scene

referred one, look, because we have done everything we wanted to do with our high dynamic range

light data, now we can just bake it into the 8-Bit display referred file and just view it as an image.

it makes perfect sense if the image that we are about to export is the final stop, the

final destination. an image on Artstation for example and you won't do any extra post processing

work on it and then there is nothing wrong with fixating the display encoding within the image.

but if you still want to retain the wide dynamic range of colors, such as the intensities in this

hot spot that now go well above the 100 in the red channel then the open exr, the 32-bit image format

would be the natural choice as we have already proved. it makes sense if the image that you are

about to save will be used as an intermediary image holding some important data for a further

post-processing let's say or for exchange with a different software for that matter. generally

open EXR is such a great format for pretty much anything related to computer graphics and it has

such a miraculous compression as well. when used in conjunction with a half precision of the floating

point the resulting exr's are super lightweight, much more lightweight than 8-bit pngs for example

but that is of topic my friends, let's get back on track. okay so we have used quite a

lot of nodes to build a cinematic post-processing pipeline in Blender. the next logical step would

be to pack it into some kind of a group that could be exported in between the Blender files.

so I'm drawing the rectangle around all the nodes we created in the compositor,

then right click, group. that puts the whole chain into into the group and we can see that

we are within the group right now, we can press tab to get out of it. tab is our stop word when

dealing with groups :) otherwise we can get stuck in there. I'm calling it postpro_01

and actually we can mute and unmute the whole group, which is very convenient.

and if you want to change something, you you press tab again and find what you need,

tweak what you need, tab to get out. that was a quick introduction to grouping nodes in Blender,

now this node group should be easily exportable via the append functionality or Blender which

we will show in just a moment. after I neaten up the nodes for no particular reason :)

here I opened a random Blender file to show the process of appending the

node group, you go file, append, search for where you have put the .blend file,

for example this one, double click on it then go down the node tree folder

and here we go! double click again. now Shift A and it should be visible in the group menu

and just plug it in.

obviously when it comes to post pro, one size doesn't fit all, but this whole configuration

of nodes will be as useful as it was in the previous scene, what we'll need to do

is just go through every individual node and tweak it to our taste. I really hope that this

post-processing formula will help you to bring out the best cinematic qualities of your lighting

formula and they will work together. my name is Gleb Alexandrov, you are still watching

the Cinematic Lighting in 3D video course, now let's do a quick recap of this section.