Why Nuke Multi Channel Compositing uses Multiplication Plus

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Use the Copy node to copy the depth channel to the depth of the color material layer, which is convenient for adding depth of field in the future, and the depth of field node zblur, the ao layer and the color can be connected together in a multiply way with the merge node

A represents the RGB output on the A side. B stands for RGB output overlay: multiply if b< ,screen if b>;

That is, if the RGB output of port B is less than that, port AB will perform the multiply operation, and if the RGB output of port B is larger, port AB will perform the screen operation.

multiply : ab 0 if a<0 and b<0;

When the values of both are higher than 0, the value is directly 0screen: A+B-AB;

Overlay, as a whole, is to brighten up b.

This node is a composite node, with a for foreground and b for background. After double-clicking on a node, you will see its properties, which have many in it, such as superposition, addition, subtraction, and so on. You can give it a try.

Mainly used for **.

Is it a shadow or what? So in the alpha channel, white is the light? Then, the keyer node extracts the brightness information of the channel into RGB. Then add a grade node to the diagram and adjust the brightness.

If you don't think it's bright enough, you can add a grade node directly under the light layer and select the alpha channel in the channels. The keyer comes out again

When rendering with Maya layers, you should add lights to each layer, otherwise the objects in those layers will not be illuminated.

Shadows can also be rendered separately by object if this is required for post-compositing, unless you are very detail-oriented in the final product.

It's the same with light layering, except that it can be multi-pass rendered in each layer, so you can use one layer to separate shadows, reflections, highlights, etc., for easy setup.

Nuke,AE is currently a very good software for synthesizing special effects,But AE is very rubbish,It's also the most rubbish software in the world.,Note that there is a good functional idea and the most garbage is AE through the software。 It is also the most obvious software in the world to sell hardware by buying software... No matter how good your computer is, no matter how big the SSD is set up like 100G, you keep modifying and changing the special effects within 10 seconds, or it won't take long for you to fill up...

Try it if you don't believe it.

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Nuke and AE are both synthesis software, but Nuke is node-based, AE is hierarchical, Nuke is more suitable for large-scale film and television scenes, AE is more suitable for column packages, etc., of course, it doesn't mean that AE can't do movies and TV series, this has to be based on the lens, especially the material has a lot to be on time, and the time is required to be particularly accurate, then AE is fast, AE timeline is very clear, and it is very troublesome in Nuke. However, complex scenes of AE will appear particularly bloated, often dozens of layers or hundreds of layers, the project looks particularly unclear, and the efficiency is not high, at this time Nuke can play its role, the larger the scene, the more obvious its advantages. You'll find that in Nuke, your process is clear...

So, it depends.

AE can complete simple editing, but after all, it is a synthesizing-based software, and there is a specialization in the industry, and PR is mainly to do editing, which is similar to other mainstream editing software.

The relationship between editing and special effects synthesis is like a chef's stir-frying, synthesis is the final frying process, and editing is to stipulate the time you spend stir-frying, so it is edited first and then composited, and there will be an accurate time after cutting first, so that when you get the post-production company, you will know where to do it. If it's the other way around, when the time comes, you'll throw away a lot of the shots you've done, that's money, so it's editing first and then compositing!

Nuke and AE are both synthetic software, which belong to the software of post-stunt or art packaging.

Editing compositing is editing software such as PR FCP ED.

Each has its own advantages, and it is a tool for different purposes in film and television production.

Synthesis software such as AE has a very powerful image processing function, and can be connected with 3D software to produce beautiful special effects.

The main function of editing software such as PR is to edit a piece of footage that has been filmed into **.

For example, when we watch a movie, the special effects part (a small part of the shots) is done with AE and 3D software, and the place without special effects is the very realistic part (most of the shots), which is made with PR editing.

For another example, when we watch TV programs, such as news broadcasts, the host's speech and playback are all made by editing software. And the title and the special effects text box displayed below the TV are generally made with special effects synthesis software like AE.

Special effects compositing software and editing software often work in tandem.

This is usually the result of a driver problem or a system environment issue.

Let's update the graphics driver first.

Then check whether the system environment packages I marked are fully installed.

The pro is card. I remember there was a script that asked Nuke to turn off background output.

The only thing to note is that OCC is put at the end, and Nuke uses multiplication, not AE for synthesis, but it should be a similar overlay.

Generally, you need to render color layers, highlight layers, reflection layers, refraction layers, shadow layers, OCC, vector layers (motion confidence), and depth of field.

Just merge on it, and click M with the shortcut key