I want to be able to change either the emissivenes or base color of a material in time with a dialog wav file. Is there a node in the material editor to do such a thing, or is there a capability to do such a thing via blueprints?
You can use the Sound Visualisations Plugin from Epic (You can find it under Built-In Plugins), giving you access to these blueprint nodes: Calculate Frequency Spectrum & Get Amplitude.
You can then use Custom Primitive Data to feed information directly into the material from your blueprints. You could also use Dynamic Material Instances.
Let me know if this helps =)
Thanks Crisp Clover. I’m beginning to work through your solution. Will let you know if I run into problems. I didn’t know about the Sound Vis Plugin till you mentioned it. But, after installing it and reading up on it in the Epic documentation, the procedure became a lot clearer. According to the documentation, using the nodes exposed by the plugin creates fewer draw calls than using DMI. But, since I’m wanting to do this for a cinematic rather than a game, render efficiency is not as important than render quality. I’ll try both methods and see if quality differs between them. Thanks again for a very insightful and useful answer. You’re my new hero!!!