**By clicking the Smart Bake button, the Texture Baking Setting dialog box appears (as shown in the following image), the following options can be found in the Texture Baking Setting dialog box:
Texture Size:
Min: list menu 16, 32, 64, 128, 256, 512, 1024, 2048, or 4096 (in pixels).
Max: list meny 16, 32, 64, 128, 256, 512, 1024, 2048, or 4096 (in pixels).
Baking Quality:
Sample Per Pixel (SPP): controls the quality of the texture baking.
Dynamic Update (in SPP): controls at which rate should the texture baking results appear during the baking process.
Geometry Processing: fast or Top Quality
Optimize Baking Time: checkbox:
Polygons Per Object Limit: enter the number of ...
To learn more about Texture/Light backing refer to this tutorial.
