Ambient occlusion setup
Posted: Mon Apr 02, 2018 4:59 pm
Hello again!
I'm wanting to re-create an ambient occlusion setup, purely node based in amplify. I'm not worried about render times, as I'm rendering to frames anyway for a short movie. I'm basically wondering if there would be a way to setup a custom ambient occlusion node graph that would take into account surrounding geometry to generate black and white mattes that I could use for let's say, darkening my spec on hair the thicker it gets, so darkening hair the closer it is to the scalp. I would also use this to bend my normals on the junction between the eyelids of my character and it's cornea geo to create a tear line. I know the traditional method would involve creating a mesh that represents the tear line, but in film I use this occlusion trick quite a bit to get the desired results without having to model or rig some more complex models.
I'm open to suggestions, but is there any way I can re-create this in amplify? I'm not comfortable with scripting, but have a really good grasp on node based math, so any suggestions or tips would be welcome.
I have screen space ambient occlusion working fine, but I can't use this info for more complex shading tricks like I'm trying to achieve.
Thanks for the help or suggestions!
Cheers
Matt
I'm wanting to re-create an ambient occlusion setup, purely node based in amplify. I'm not worried about render times, as I'm rendering to frames anyway for a short movie. I'm basically wondering if there would be a way to setup a custom ambient occlusion node graph that would take into account surrounding geometry to generate black and white mattes that I could use for let's say, darkening my spec on hair the thicker it gets, so darkening hair the closer it is to the scalp. I would also use this to bend my normals on the junction between the eyelids of my character and it's cornea geo to create a tear line. I know the traditional method would involve creating a mesh that represents the tear line, but in film I use this occlusion trick quite a bit to get the desired results without having to model or rig some more complex models.
I'm open to suggestions, but is there any way I can re-create this in amplify? I'm not comfortable with scripting, but have a really good grasp on node based math, so any suggestions or tips would be welcome.
I have screen space ambient occlusion working fine, but I can't use this info for more complex shading tricks like I'm trying to achieve.
Thanks for the help or suggestions!
Cheers
Matt