Introduction

I've put together some things that I think are useful to do after LT conversion.

This time, I'll explain how to do LT conversion on 3D materials with texture.

Adjustment method

↑I will explain using a 3D material of a textured tatami mat.

I am offering 3D materials of a single tatami mat and a Japanese-style room.

Please take a look if you are interested.

Japanese Room 3D also comes with an auto action that can create layers for adjusting textures, making it easy to increase efficiency.

 

 

Texture Line Extraction

If the expression color of the contour layer created with "Texture line extraction" during LT conversion is set to monochrome, you can adjust the threshold.

You can adjust the line thickness by changing the alpha threshold.

Moving the slider to the left makes the line thicker, moving it to the right makes it thinner.

You can adjust the threshold, or in some cases hide the layer.

It is recommended to create this contour layer as it gives you more options when making adjustments.

In the example above, the texture of the tatami mat becomes quite dark immediately after LT Conversion.

↑This is what it looks like when you hide the layer "Contour 1".

This may be enough to complete the image in this case.

↑This is what it will look like when you adjust the threshold.

Adjust it to your liking.

The image on the left may also be useful for dark scenes at night.

 

 

Cut out and adjust the texture

The 3D material used for LT conversion is converted into a raster layer and duplicated.

This method allows you to adjust the texture part based on that layer.

It depends on the situation, but when converting to a raster layer, it is best to turn off "Affected by light source."

Convert the 3D layer to a raster layer using "Convert Layer."

Set the expression color to gray or color.

If it's monochrome, you won't be able to make adjustments.

Check "Keep original layer" to prevent the 3D layer from disappearing.

Set the expression color of the created raster layer to monochrome.

You can delete the ruler as it is not necessary.

We will use this layer to adjust the texture.

Adjust the shade using the color threshold.

Moving the slider to the left makes it lighter, moving it to the right makes it darker.

↑ Hide the contour line layer and tones created with "Texture Line Extraction" and create a selection area for the texture part.

↑For 3D materials that have color-coded material presets, it is useful to use color range selection to create a selection area.

 

↓I try to color-code the 3D materials I've recently posted as much as possible.

↓Some 3D materials are listed with auto actions that create layers for adjusting textures, so I think it will save you a lot of time.

Cut out the selected area from the adjustment layer.

Adjust the shading with the color threshold.

↑At the initial stage, the texture of the tatami mat in the foreground appears dark.

↑In this case, the lines for the tatami mats varied depending on their orientation, so I cut them out one by one and adjusted the threshold.

I think it turned out just right.

Adjusting it like this tends to give it a good look.

Also, in this example, the tatami mat texture is just black lines, but this can be useful for more complex textures as well.

 

We will use the official Clip Studio Paint material, Clubroom (Cultural Club) - Ver. 2, as an example.

↑This is what it looks like right after LT Conversion.

↑You can easily get something like this just by adjusting the threshold.

It looks more like a manga background.

 

We'll use the floor as an example.

First, use the same procedure as before to create a raster layer for adjustments by converting the layer.

Create a selection area for the floor and cut it out.

If you change the expression color of the cut layer to monochrome, tile lines will appear, but this doesn't look good.

I'll adjust the color threshold to get a nice line thickness.

 

Then I'll add texture.

Duplicate the adjustment layer.

When overlapping adjustment layers, click on the black square next to "Monochrome" in the layer properties expression color.

The white parts will become transparent, so do this when overlapping layers.

 

 

Change the layer color of the overlapping lower layer.

Set it to your liking.

In this example, we'll make it 20% gray.

If you want to work with a toned image, don't change the layer color, but tone the layer.

 

Once you've toned it, apply gradation.

Move the slider to adjust the shade.

Enter a value for the tone color density.

 

When layering tones, set "Use image luminance."

White parts will become transparent.

 

I don't usually tone layers, but I thought of a way to do it this time, so it might not be very user-friendly!

Sorry!

 

 

Work on the image in grayscale, and if you want to tone it at the end, create a folder, put all your adjustment layers in it, and tone the folder.

↑I made a typo. Sorry...

 

If you tone each layer as is, it will be toned to the layer color.

 

If you want to tone each layer individually, turn off the layer color setting, and adjust the toning and gradation.

↑I adjusted the threshold of the added adjustment layer (the image shows the layer color set to 20% gray).

The image above is a bit plain, but you can make it look more realistic by duplicating and adjusting the layer further.

↑This is what happens when I duplicate the adjustment layer, add two more, and adjust the threshold.

I think this is good when you want a realistic finish like that of a young men's magazine.

 

As a side note, when adjusting the threshold, first find a good point between white and black.

I think it's best to move the slider around that area.

↓However, while it is best if the color difference is clear, when the color difference is small, like in the example tiles, even moving the slider a little can make the image appear whitish or blackish.

In the example below, the only part where the texture looks good is the red part, so it's difficult to make fine adjustments when moving the slider.

< > ← I recommend clicking on this part and adjusting it little by little.

↓You might want to try using color correction on the adjustment layer to make the texture stand out more clearly.

In terms of color correction, the example tiles include dark and light colored tiles, but if you leave it as is, it will not work well if you try to bring out the texture of the light tile.

↑If you try to apply texture to a light tile, the dark tile will appear as a solid color.

↑When trying to bring out the texture of the dark tiles nicely, the texture doesn't show up on the light tiles.

 

The solution in this case is simple - duplicate the adjustment layer and invert the gradation, which will reverse the light and dark tiles and pick up the texture of the light tiles.

↑A light tile texture will appear.

 

Black_Line

40% gray_Dark tile texture 1

20% gray_Dark tile texture 2

20% gray_Light tile texture (inverted gradation)

 

Layered like this, it looks like the image below.

Trying out various things will make the finish look good, so please give it a try.

It looks better compared to right after LT Conversion.

The End

You may think that simply applying LT conversion to 3D materials with textures won’t work, but with just a little effort, it can turn out pretty well.

If the image attached to the 3D material is rough, it may not work well, so if you want to create a background that makes use of texture, it’s a good idea to check that when selecting the 3D material you want to use.

 

It only takes a short time, as all you need to do is create a selection and adjust the threshold, so if you think the texture isn’t coming out well with LT conversion, please give it a try.