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Modding:Creating Outfit Textures: Difference between revisions
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This guide will cover how to make textures for your custom outfits. | |||
== Software == | |||
What looks good on a flat surface might not look good on a model. You ideally need some software that enables you to paint directly onto the model. Programs such as Blender’s texture paint mode, Armorpaint or Quixel Mixer or of course Substance Painter are worth looking into. | |||
It is recommended to export a copy of the UV map so you can use it as a reference. With your item open in Blender, move to the UV Editing tab. Click UV, select Export UV layout. Tick All UV. You will now have a semi- transparent image to use as a template for your texture. | |||
== Overview == | |||
There are four textures in a generic armour item. Sometimes there are 3, as an item has no MSK and all the colour is on the BM, but it is easy enough to create your own. | |||
== Basecolour == | |||
This controls colour strength. It is flat and white or grey, as colours are overlaid on it via the MSK. The shader for the game is quite powerful so many BM are not very detailed. It will be called a BM if it has no transparency, and BMA if it does. The A stands for alpha, as transparency requires an alpha channel. | |||
== Normal Map == | |||
This makes the shading engine of the game bounce light off the item in a way that makes the object look like it has more depth than it does. The most important texture. | |||
There are 2 types of normal map generally used. One, OpenGL, will look right side out. The other, DirectX, will look inside out (with things such as buttons going in). | |||
BG3 uses a modified version of DirectX, where the red channel (X axis) is put into the alpha channel, as this saves space file formatting. | |||
<u>Channels:</u> | |||
Red - Not used, filled with all black | |||
Green - Y (Green Channel) | |||
Blue - Z (Blue Channel) | |||
Alpha - X (Red Channel) | |||
== Physical Map == | |||
The physical map is 3 maps in one, combined into one image. | |||
=== Red channel: Metalness. Decides if an object uses the metallic shader or not. === | |||
White sections of this are metal. Black sections are not. You may wish to play around with this- most metal MSKs in the game are not solid white but instead have texture to to make the item more interesting to look at. Some non-metal items, such as gemstones, velvet and silk, also use the metal shader to add shine. | |||
=== Green channel: Roughness. Decides what parts of the object are shiny and which aren’t. === | |||
The whiter this is, the more matte it is. Darkness adds shine. Add noise for visual interest. | |||
If you make it too white you can get a bug where it becomes shiny. | |||
=== Blue channel: Ambient Occlusion, a type of shading. === | |||
There are programs that will bake ambient occlusion for you, or it may be baked by your texture creating software. | |||
If unsure, leave this pure white. | |||
== MSK == | |||
This decides what colour tints are overlaid via dyes and material presets, giving the outfit different colour choices. Look here for a list of the [[Modding:Armor/Clothing Texture Maps#Parameters and corresponding colours inside MSKColor/MSKcloth|Mask Colours]]. | |||
This is where the UV map template we exported is useful, as we can simply trace around the uv chunks to add colour and paste in with our bucket tool. | |||
If you intend to make the entire outfit a solid colour, just make the MSK 4x4 to save space. | |||
==== Make MSK files with Blender ==== | |||
You can make a MSK file with Blender by assigning each mesh the correct colour via Materials and exporting this as a texture. | |||
== File sizes == | == File sizes == | ||
The textures need to be perfect squares, or perfect rectangles. This is because computers work to the power of 2 and prefer things that way. Not remembering this can make people’s games crash. | The textures need to be perfect squares, or perfect rectangles. This is because computers work to the power of 2 and prefer things that way. Not remembering this can make people’s games crash. | ||
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== Tools == | == Tools == | ||
[https://www.nexusmods.com/baldursgate3/mods/4310 Volno texture paint blender toolset] | |||
[https://boundingboxsoftware.com/materialize/ Bounding box software- materialise – For making Normal Maps from scratch] | [https://boundingboxsoftware.com/materialize/ Bounding box software- materialise – For making Normal Maps from scratch] | ||