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For my interactive models I was doing lightbaking since good old Lightscape. Then I moved on to 3ds max with radiosity. Although for stills I always preferred Vray.
Meanwhile I also use Vray for texture baking, but it is so hard to really get good and quick results. To get really clean lightmaps without any artefacts I have to use brute force. I tired various other combinations with irradiance map/lightcache, and although faster, it is still quite slow and lightleaks or other strange things tend to occur.
I really need clean lightmaps as many models hardly use any textures at all, they ought to have this special "model-look", i am not after realism, but rather clean and perfect lighting, like in these old examples:
Now I had to prepare an interactive interior recently and was already quite short in time, but baking lightmaps with vray really made me struggle this time. I should have retweaked the whole scene for radiosity, exchange all lights, materials etc, and I would have been certainly faster as radiosity with regather gives pretty clean results with short render times. Only problem with radiosity are overlapping objects, which tend to produce very hard black shadows, vray is much better in this regard.
For this example it took 1 hour alltogether to calculate the radiosity solution and bake one lightmap for the entire scene with 1024x1024 resolution:
I tired the same with Vray and different settings, and for this I used standard render settings with brute force subdivision cranked to 100 gave. This gave me about 7 hours render time for the same 1024x1024 lightmap while still being quite noisy:
Here i used "universal settings" with DMC noise threshold at 0.001 and while already rather clean, it took 23 hours to render the lightmap, which is unacceptable:
Are there other settings I could try that you would suggest. Maybe I would be better off with irradiance map, but so far I have not found any setting that would give me artefact-free results in contrast to brute force.
Thanks for any input!
Meanwhile I also use Vray for texture baking, but it is so hard to really get good and quick results. To get really clean lightmaps without any artefacts I have to use brute force. I tired various other combinations with irradiance map/lightcache, and although faster, it is still quite slow and lightleaks or other strange things tend to occur.
I really need clean lightmaps as many models hardly use any textures at all, they ought to have this special "model-look", i am not after realism, but rather clean and perfect lighting, like in these old examples:
Now I had to prepare an interactive interior recently and was already quite short in time, but baking lightmaps with vray really made me struggle this time. I should have retweaked the whole scene for radiosity, exchange all lights, materials etc, and I would have been certainly faster as radiosity with regather gives pretty clean results with short render times. Only problem with radiosity are overlapping objects, which tend to produce very hard black shadows, vray is much better in this regard.
For this example it took 1 hour alltogether to calculate the radiosity solution and bake one lightmap for the entire scene with 1024x1024 resolution:
I tired the same with Vray and different settings, and for this I used standard render settings with brute force subdivision cranked to 100 gave. This gave me about 7 hours render time for the same 1024x1024 lightmap while still being quite noisy:
Here i used "universal settings" with DMC noise threshold at 0.001 and while already rather clean, it took 23 hours to render the lightmap, which is unacceptable:
Are there other settings I could try that you would suggest. Maybe I would be better off with irradiance map, but so far I have not found any setting that would give me artefact-free results in contrast to brute force.
Thanks for any input!
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