Making any change to materials causes shader compilation

Development Rendering
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1

I am new to UE4, and as I get started, wanting to hop directly into material production, I noticed that every time I change the smallest thing (following the engines material editor tutorial) like changing the rgb values causes the whole editor to compile shaders, and will not update the preview to show any type of change until it is complete.

This is is for every change in the editor. Is this a known problem, or a simple bug in the engine?

2

The unreal engine is called a change on the fly. The shaders are precompiled so when you hit play to preview in the game scene you get into instantly. If you make a change to a material it needs to recompile fully to show you the preview even a small change like a constant or color.