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The minimum system requirements for running Substance Painter are: - OS: Windows 10 (64-bit), macOS 10.13+, CentOS 7.0/Ubuntu 18.04+ - CPU: Intel Core i5 or AMD Ryzen 5 - Memory: 8 GB RAM - GPU: VRAM 2GB, OpenGL 3.3 or DirectX 10 The recommended system requirements are: - OS: Windows 10 (64-bit), macOS

To bake textures in Substance Painter, import your 3D model, switch to the "Texture Set Settings" tab, click on the "Bake Mesh Maps" button, configure your baking settings such as resolution and desired maps, and finally click "Bake Selected Textures."

To export textures from Substance Painter, go to File > Export Textures, set your desired Output Template and settings, choose the export path, and click Export.

To create custom brushes in Substance Painter, you need to follow these steps: 1. Open Substance Painter and create or load a project. 2. Navigate to the "Brushes" shelf and select a base brush. 3. Adjust the brush properties in the "Properties - Paint" panel. 4. Customize the brush shape using a custom alpha by importing an image through the "Alpha" slot. 5. Add or modify the brush texture and settings such as size, flow, and hardness. 6.

To import a 3D model into Substance Painter, go to File > New, then click the "Select" button next to "Mesh" to choose your 3D model file (typically in .FBX or .OBJ format), configure the project settings as needed, and click "Ok" to import.

To use layers in Substance Painter, first, open the Layers panel. Click on the "Add Layer" button to create a new layer. Drag and drop materials, brushes, or smart materials onto the layer. Adjust the properties and blending modes as desired. You can also use masks and effects to fine-tune the details on each layer. Layers can be organized into groups for better management.

To create realistic textures in Substance Painter, start by baking high-quality mesh maps to capture fine details. Use the PBR (Physically Based Rendering) workflow for accurate material representation, and leverage smart materials and masks for complexity. Layer different texture maps and fine-tune parameters like roughness, metallic, and normal maps. Utilize custom alphas, brushes, and procedurals for adding details. Enhance realism with ambient occlusion and curvature maps, and always reference real-world materials.

To troubleshoot performance issues in Substance Painter, you can follow these steps: 1. **Check System Requirements**: Ensure your system meets the minimum requirements. 2. **Update Drivers**: Make sure your graphics drivers are up to date. 3. **Close Background Applications**: Shut down unnecessary background applications to free up resources. 4. **Optimize Texture and Mesh Settings**: Reduce texture resolution or lower poly count of meshes. 5. **Adjust Preferences**: In the software, lower the quality settings

To paint across multiple texture sets in Substance Painter, enable the UV tile workflow by checking the "Use UV Tile Workflow" box during project creation or in project settings, ensuring your model has matching UDIMs, and hold down the "Shift" key while painting to seamlessly paint across different texture sets.

To use Smart Materials in Substance Painter, first, open the Shelf and find the Smart Materials section. Drag and drop your desired Smart Material onto the 3D model in the viewport or onto a specific layer in the Layers panel. Substance Painter will automatically apply the material with its pre-defined textures and properties.