Open Source Alternatives to Substance Painter

ArmorPaint is a stand-alone software designed for physically-based texture painting. Users can drag and drop their 3D models and start painting immediately, receiving instant visual feedback in the viewport as they work. This makes ArmorPaint an ideal tool for artists and designers looking to create detailed and realistic textures for their 3D models.

• Node Based: Work efficiently with node-based workflows. Paint with fully procedural materials, build fill layers with material nodes, and create patterns and procedural brushes using brush nodes.
• GPU Accelerated: Designed from scratch to run completely on the GPU, ArmorPaint offers a smooth 4K painting experience on medium-power hardware and seamless 16K texture painting on high-end graphics cards.
• Ray Tracing: Utilize ray-traced baking, painting effects, and viewport rendering features with support for Direct3D12, Vulkan, and Metal. ArmorPaint's in-house 3D rendering engine ensures the best painting experience.
• Live Link: Integrate ArmorPaint with existing 3D software using live-link plugins. Blender, Unreal Engine, and Unity plugin previews are available for download.
• Baking: Instantly bake texture maps for high-poly models on your GPU. Experimental ray-tracing builds offer hardware-accelerated ray-traced baking.
• Path Traced Viewport: Paint models in a viewport with true light simulation. Experimental builds support path-traced viewport rendering.
• Plugins: Enhance the software with plugins, enabling new node systems or custom material nodes.
• Runs Everywhere: ArmorPaint is available on Windows, Linux, macOS, iOS, and Android. On desktop, it is a portable application with no installation required, near-instant startup, and a download size of less than 10MB.

ArmorPaint provides a robust and versatile toolset for 3D texture painting, making it a valuable addition to any digital artist's toolkit.