To blur the environment or your mental ray material, you can add the to your shading network as follows:
- Apply the mia_material or any other reflective mental ray shader to the object that you wish to blur. The mia_envblur shader should be used in conjunction with the reflective mental ray shaders.
- Add an HDR image or the mia_physicalsun/mia_physicalsky shader to your environment.
- To add the mia_envblur to your scene, in the node, map the mia_envblur shader to the attribute under the section under .
- Tweak the settings in the mia_envblur to obtain the desired look.
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