We do this in order to avoid any black areas on the sections under them, and also to ensure that they themselves are correctly shaded:
You'll also want to remove animations and parenting at this point, and maybe take the opportunity to clean the materials and save the scene.Īt this point you'd need to go through the elements that move and separate them slightly from the surrounding meshes so they're "floating" in space. Also, don't forget to delete the elements that you don't want to bake, like the collision meshes and the helpers, etc. Once imported, you'll need to make sure to delete all the LODs, since only LOD0 will be getting baked. Once the 3DS Max file is ready and the Arnold renderer set up, you should import the cockpit model into it. The following images show the essential setup values for the renderer: one for low definition/fast rendering, and the other for high definition/slow rendering: Next you'll need to go to the "Render Setup" window and select Arnold: Once you have your new file opened, go into the "Environment and Effects" settings and set the background to white: To bake the lightmap in the best conditions you will need to create a separate. To ensure that you can bake the lightmap correctly, you will need ensure that you are on at least 3DS Max 2019.3, and you will also need to install Arnold for 3DS Max 3.2.57 (even if it doesn't seem mandatory to have this version installed). In these examples you can see that the bottom part of the cockpit receives a lot less light in a lightmap render than in a standard ambient occlusion baking, and that everything looks a lot less neutral and has more depth than the Substance Painter AO. To get an idea of why we want to do things this way, lets compare the AO from just Substance Painter with the AO using an Arnold lightmap: In order to achieve this we'll be baking a lightmap using the 3Ds Max Arnold renderer.
To simulate natural light, ambient occlusion on it's own is not quite good enough for the cockpit interior, and it has to be combined with the exterior light that is getting into the inside of the airplane.
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