If you want to capture the MR lighting for use in Unity you might use a reflective cube. I also don't know anything about tone mapping in Unity so sorry I can't help with that.ĭoes it absolutely have to be baked in Mental Ray though? If I'm reading this right you basically want to export a cubemap/HDR from 3ds Max to use in an IBL (image based light) scene? This is absolutely possible, though HDR's are usually made outside of 3D Apps. You may have to do this as well, but this all depends.
I'm not sure how Unity handles it's light map data but Unreal uses a second set of UV's to achieve this. You may have to use a very subtle ambient light on the interior if it needs a boost. If you're insistent on the lighting being done in Mental Ray some advice might be:īump up your GI bounces a little bit (don't go crazy), it'll help flood the interior with soft light. This is what I thought when I was reading it as well. If anyone has any knowledge about baking HDR lightmaps in 3DS Max for exporting to Unity using Mental Ray, I will gladly buy you beers the next time you're in the Tampa Bay area. All the training material out there seems to be for VRay in Maya.
What do I know about game art ? Don't judge me.Īnyway, I'm reading a lot about HDR lightmapping and dynamic tone mapping shaders in Unity, but I'm fuzzy on how to go about doing it in Max with Mental Ray. It seems I am not good at rendering things which need different exposure values for inside and outside on the same map. ies files and my preliminary attempts at lightmapping look like I set the building on fire and put it out with toner. I have a sun & sky and photometric lights with. The problem is that it's lit from both outside and inside (like buildings usually are.) and my texture baking experience is limited to doing CompleteMaps for augmented reality models. Yes, I do indeed plan on walking around the result in Oculus Rift. I'm an architect trying to lightmap a building for export to Unity for architectural vis.
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