When comparing 3D-Coat vs ArmorPaint, the Slant community recommends 3D-Coat for most people. In the question“What are the best 3D texture painting softwares?” 3D-Coat is ranked 3rd while ArmorPaint is ranked 4th. The most important reason people chose 3D-Coat is:
3D coat is also known in the game industry to be a great app to preform retopology.
Ranked in these QuestionsQuestion Ranking
Pros
Pro A known app for retopology
3D coat is also known in the game industry to be a great app to preform retopology.
Pro Link to Photoshop, or any app that can open PSD files
You can save and open your texture work in apps like Photoshop, work on them and send them directly back to 3D coat. It will remember your layers and update.
Pro Professionals recommend 3D Coat for Handpainted textures
You can texture in many styles with this app, but when it comes to Handpainting, as seen in World of Warcraft and Torchlight, 3D Coat is the one that many professionals will advice you to as their top choice.
Pro PBR materials
3D Coat supports the creation of your own PBR materials that are ready to be used in the PBR workflow.
Pro Voxel sculpting
Voxel sculpting is entirely free from the bounds of polygons and topology.
Pro A fast and fun way to UV
3D coat has made UVing my work go super fast and it's actually quite fun because you're finished in a breeze.
Pro Paint on multiple maps at once
ArmorPaint allows artists to paint across multiple maps at once. This allows for easy creation of coherent color, roughness, and bump maps.
Pro Entirely GPU-run
Supports GPU acceleration. Since it is run entirely on the gpu, it makes painting huge maps nice and smooth on modern graphic cards.
Pro Node-based brushes
A simple and robust "blender-based" node system to modify brush channels.
Pro Open-Source
ArmorPaint falls under the zlib license. The zlib license has been approved by the Free Software Foundation (FSF) as a free software license, and by the Open Source Initiative (OSI) as an open-source license. It is compatible with the GNU General Public License. As such, the program is FREE if you compile it from source, and (as of August 2, 2020) costs only €16 to purchase pre-compiled binaries.
Pro Epic MegaGrant's recipient
ArmorPaint received a $25,000 Epic Mega Grant. This is a large donation of money given by Epic Games through their MegaGrant Program to programs that show great promise. These grants are unconditional and recipients are expected to continue program development as they see fit. These grants can not be used to purchase unpurchasable software (open-source software).
Cons
Con Not a voxel program
This is a paid texture program. Why is it in this list?
Con Voxel sculpting hits your system
Voxel is quite heavy on your computer, if you intent to use this as your main model and sculpt app do enough research to see if your computer can handle it and if you have the right graphic card for it. If you really have doubts , just go ask in the forums.
Con 7 layer restriction in the affordable version
The cheapest version available only lets you paint on 7 layers, which is very unfortunate.
Con It's NOT free (even though it's open-source)
Armor Paint is open-source, but the official binaries are not available for free.
Unless you can compile it yourself, or you run Arch Linux or a system based on it and can use an AUR package that'll build it for you - you'll have to pay to use this program.
Con Beta
It is not completed yet, which may lead to support drop, or a software that is not entirely usable.
Con No lossless upscaling of brush strokes
When exporting your maps in higher resolutions in Substance Painter - it'll re-draw all your strokes in the background to make sure the exported textures have as much detail as possible. Armor Paint doesn't have such a feature so far - if you paint on a small resolution texture - you're stuck with it, or you'll have to manually re-paint it yourself to get a higher resolution texture.
Con No projection on normals
The brushes are projected with a simple viewport projection, which can lead to weird warping of the brush on irregular surfaces.