Adding texture to objects in Blender is an essential step in creating realistic and visually appealing 3D models. Whether you're working on animations, game design, or architectural visualization, textures bring life and detail to your creations. Here's a step-by-step guide on how to add texture to objects in Blender.

Step 1: Open Blender and import your 3D model or create a new one. Ensure that your model is unwrapped, meaning the UV mapping is set up for texture application.

Step 2: In the Properties panel, navigate to the Material tab. Here, you can create a new material or edit an existing one for your object.

Step 3: Under the Material tab, find the Surface section and click on the 'Use Nodes' checkbox. This enables the node-based shader editor, where you can create and manipulate the materials for your object.

Step 4: In the Shader Editor, you'll see the default principled BSDF shader. To add a texture, click the 'Add' button and select 'Texture' > 'Image Texture'. Connect the color output of the Image Texture to the Base Color input of the principled BSDF shader.

Step 5: Now, you can open your desired texture image using the Image Texture node. Click 'Open' and select the image file from your computer. The texture will now appear on your object in the 3D view.

Step 6: To fine-tune the placement and appearance of the texture, you can adjust the UV mapping of your object. This can be done in the UV Editing workspace, where you can manipulate the texture coordinates to control how the texture is applied to the object.

Step 7: You can also add additional textures for features like bump mapping, specular mapping, and roughness mapping to further enhance the realism of your object's materials. Simply repeat the process of adding Image Texture nodes and connecting them to appropriate inputs on the principled BSDF shader.

Step 8: Once you're satisfied with the texture setup, you can switch to the Rendered view or use the rendering engine to see how the textures look in a final render. This will give you a better idea of how the textures appear under various lighting and camera angles.

By following these steps, you can add rich, detailed textures to your 3D models in Blender, taking your creations to the next level of realism and visual appeal. Experiment with different textures and material settings to achieve the exact look you want for your objects.