You seldom see a phone without some smudges on its screen, or a table without a bit of dust or scratches, or a leather bag without patina. Scratches, dust, fingerprints, dirt accumulated in tiny corners, signs of aging, all this plays a heavy role in making the eyes believe what they see. Imperfections form a major part of what makes a render photorealistic. You can use this technique to make all sorts of material variants, like rusted iron, oxidized silver, or even aged bronze that’s turning green around the crevasses. Read further to see how to build this aged, oxidized, grungy material in Keyshot’s Material Graph. Combine them and in no time, you’ll have a material that behaves exactly the way you want it to… because it was designed to! All you need is a little patience and the ability to spot how your material reacts when you make changes to it in the material graph. I’m probably making it sound complicated, but here’s the truth – it really isn’t. You can pick and choose various aspects of different materials, creating a visually gorgeous mishmash of nodes and blocks to ‘build’ a material that looks stunningly real. If Keyshot’s material library is a restaurant menu-card, the material graph is literally the most versatile salad bar you’ve ever seen. Keyshot’s Material Graph offers the ability to go beyond simply tweaking a material’s color, roughness, or refractive index.
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