Open Blender:

• Launch Blender and open the .FBX file (File > Import > FBX).

Review the Model:

• Make sure the 3D model looks as expected and the material is applied correctly.

Switch to Cycles Render Engine:

• Change the render engine to Cycles. You can do this in the top bar next to the “Help” menu.

Set Up UV Maps:

• Switch to the “Layout” workspace.
• Open the “UV Editing” workspace.
• Ensure your model has UV maps. If not, unwrap the model (U > Unwrap).

Assign Image Textures to Materials:

• Go to the “Shading” workspace.
• Ensure each material uses an image texture. Assign textures if needed.

Export UV Layout:

• In the “UV Editing” workspace, select all (A) and export the UV layout as an image (Image > Export UV Layout).

Export Textures:

• Save your image textures to a folder. Make sure to use common image formats like PNG or JPEG.

Create a New Texture:

• Back in the “Shading” workspace, add a new texture in the “Image Texture” node.
• Assign the exported UV layout as the texture.

Switch to the “Render” Tab:

• Go to the “Render” tab in the “Properties” panel.

Bake Textures:

• Scroll down to the “Bake” section.
• Choose “Diffuse” or “Combined” depending on your material.
• Click on the “Bake” button.

Save Baked Texture:

• After baking, save the baked texture image (Image > Save As Image).

Export as .DAE:

• Switch back to the “Layout” workspace.
• Export the model as a .DAE file (File > Export > Collada (.dae)).

Include Textures:

• When exporting, ensure the “Include UV Textures,” “Include Material Textures,” and “Copy” options are selected.

Now you should have a .DAE file with the 3D model, UV maps, and textures ready for import.