Merge AOVs to get an EXR file into Nuke that you can open up into the Ai Standard’s passes. To get the other passes
To create a wireframe pass we create a new layer in the render setup window. Name it and create a collection. Drag and drop the meshes from the outliner into the box. Create a material override and choose Ai Wireframe. Make sure the attributes are showing in polygons.
To see the HDRI reflections you need to render an Ai Sky node.
Creating a SkyDome for an HDRI map.
The HDRI map I will be using:
It might not make sense with the brick wall in my image – but it’s something. I also might dim it down and darken it up a bit.
How to composite 3D elements into a scene:
- Have objects in scene textured and lit.
- Measure your real scene and create a box (scene limits) in maya to the same scale. This gives you a better approximation of how to place the objects realistically in your scene (Match-moving: matching your virtual camera to your real camera). NOTES on camera measurements.
- Add in SkyDome light. Fix that before you add in lights?
- Think about bounced light (indirect diffuse) and other light sources. Reflections as well.
- Use render layers to render out different passes.
- Create at least two render layers, Props and Shadow Plane.
- Create a collection when you make a new render layer. Make a collection for each object. The eye buttons display the layers.
- You can create material overrides when you want to change the material for objects. Green tabs show overrides.
When in Nuke… freak out.
Use Nuke10X_Non-commercial version.
- Un-premultiply images that have a border.
- Unpremult > Shuffle > Diffuse Grade > Merge (plus) > Copy > All Grade > All hue >
Ryan was a legend and sent us this tutorial on how to create AOVs as they are still a foreign language to me.
- Basically add what sounds familiar to the active AOV group and check what they look like in the render view.
- Keep what you need to composite with.
- Do AiStandard Passes (if you used that shader) and then also the built in passes (of the beauty pass?)
Here are my render passes:
I didn’t need my Refraction Opacity pass and I am taking my SSS pass over my Direct SSS pass as there’s a bit more in it.
So I rendered my passes and saved them as a multi-image EXR file. I imported this into Nuke.