Rendering with mental rayÂ®: Tips and Tricks - Autodesk

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Rendering with mental ray: Tips and TricksThe default settings for Z Depth workgreat for depth of field. However if youneed a more gradual z depth image withmore information, you can alwaysincrease the Z Max to something like100’ or more depending on the size ofyour model.Ambient OcclusionAmbient Occlusion (AO) is an effect that creates soft shadows based on the distance of objectsfrom each other. It’s a fast way to add detail and depth to a rendering. However if usedincorrectly it will make an image appear unnatural.Ambient Occlusion Pass10
Rendering with mental ray: Tips and TricksJust like Z Depth, theeasiest way to create an AOpass is through RenderElements. There are somany different mr A&Delements, but the one youwant is “mr A&D Raw:Ambient Occlusion”. Acaveat with this renderelement though: it will onlycreate AO on objects thathave an Arch & Designmaterial assigned to themwhere AO is turned on.There are maxscripts that can globally set theAO value in all scene materials, if the scene hasAO off and hundreds of materials. You canalways use a material in the override materialslot to manually render an AO pass, however theadvantage to using AO Render Elements versusgoing the material override route is that it willrespect material cut-out transparency, which canbe very tricky to overcome when creating an AOpass. This is a script that I like to use thatcontrols AO settings globally. It can be found atwww.ramyhanna.com11
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Rendering with mental rayÂ®: Tips and Tricks - Autodesk

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