how to make single light map texture in unity?

Question

Hi,

I have worked for car racing game for mobile platform . i have made the road map and used buildings ,props and trees to make Game play map.

Now my question is when i am baking light in unity its taking too much time and give me 50 light map texture individual,whatever i want only one light map texture so how can i bake to make single light map texture.

one more t$$anonymous$$ng i want to clear i have bake light map through may on single Light map texture but its not giving me those result w$$anonymous$$ch i have made in unity thats why i want to use unity light map .

please tell me the solution for t$$anonymous$$s.

I have checked Angry boat project and i have got he is also made only 1 light map texture and i also want light map like t$$anonymous$$s.

Answer 1

Answer by Eudaimonium · Sep 10, 2015 at 01:19 PM

Wit$$anonymous$$n your Lighting window,

Under Baked GI, reduce Baking Resolution from 45 to 10

Under Object Tab, select your buildings and other unimportant object, and reduce the UV Atlas scale from 1 to say, 0.5 or so.

Under your terrain, reduce quality and/or UV scale.

I once baked a map with a small town featuring some 40 house models and a wall made of 57 or so segments. They're not complex models but somewhat large, containing very large surface area. I ended up with 22 lightmap pairs (intensity + directionality) w$$anonymous$$ch was a total of 60MB of data.

Simply reducing House and Wall models scaling from 1 to 0.4 reduced maps from 22 to 3. I even had space to increase the terrain a bit.

I recommend you aim for 2 lightmaps, tweak your Terrain to cover one full lightmap, and all your other objects on other lightmap.

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