Brandon Toomey Enviroment and Hard Surface ArtistI am an environment and hard-surface artist, with three shipped titles since 2004.
With two exceptions for specific cases, all the materials in this scene were done as instances of this single master material I created. The original material allowed for vert alpha blending of two diff/norm/spec textures, with an optional grime overlay done in vert red. Later a third diff/norm/spec was added on vert blue, for a total of 4-way blending. I had multiple switches I could use to alter the behavior of each material instance, including disabling the second or third blend textures (or both), disabling the grime, disabling just the grime normal (for stains instead of debris), specular exponent, UV tiling scalars for different textures, toggling threshold mask blending for the A-to-B blend, and putting the reflective component before or after the final grime layer. It was flexible enough to allow me to do almost any kind of surface in the scene, from steel, to rough and smooth concrete or cement, to cast iron, and paint.
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