Interface

Now that we have our 3D scene mainly done, we can start working on the HTML interface.

Let's create an Interface.jsx component with the same 4 sections as our 3D scene:

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export const Interface = () => {
  return (
    <div className="interface">
      <div className="sections">
        {/* HOME */}
        <section className="section section--bottom">HOME</section>
        {/* SKILLS */}
        <section className="section section--right">SKILLS</section>
        {/* PROJECTS */}
        <section className="section section--left">PROJECTS</section>
        {/* CONTACT */}
        <section className="section section--left">CONTACT</section>
      </div>
    </div>
  );
};

We will use the section--bottom, section--right and section--left classes to position the content inside the sections.

For the moment we only added the sections names, we will add the content later.

Let's add our Interface component into the App component:

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import { Scroll, ScrollControls } from "@react-three/drei";
import { Canvas } from "@react-three/fiber";
import { MotionConfig } from "framer-motion";
import { Experience } from "./components/Experience";
import { config } from "./config";
import { Interface } from "./components/Interface";

function App() {
  return (
    <>
      <Canvas camera={{ position: [0, 0.5, 5], fov: 42 }}>
        <color attach="background" args={["#f5f3ee"]} />
        <fog attach="fog" args={["#f5f3ee", 10, 50]} />
        <ScrollControls
          pages={config.sections.length}
          damping={0.1}
          maxSpeed={0.2}
        >
          <group position-y={-1}>
            <MotionConfig
              transition={{
                duration: 0.6,
              }}
            >
              <Experience />
            </MotionConfig>
          </group>
          <Scroll html>
            <Interface />
          </Scroll>
        </ScrollControls>
      </Canvas>
    </>
  );
}

export default App;

To style our HTML interface, we will use vanilla CSS to be the more generic possible. You can use your favorite CSS framework if you want. (I used TailwindCSS on most of my projects)

Let's add the default styles to our index.css file:

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@import url("https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@400;700&display=swap");

:root {
  --primary-color: #4668ee;
  --text-color: #1a202c;
  --text-light-color: #555;
}

#root {
  width: 100vw;
  height: 100vh;
}

body {
  margin: 0;
  font-family: "Roboto Slab", serif;
}

/* ... */
.interface {
  width: 100vw;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sections {
  max-width: 1200px;
  width: 100%;
}

.section {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.section--top {
  align-items: flex-start;
}

.section--bottom {
  align-items: flex-end;
}

.section--right {
  justify-content: flex-end;
}

.section--left {
  justify-content: flex-start;
}

We imported the Roboto Slab font from Google Fonts and defined some colors variables.

The sections container is centered and has a max-width of 1200px to keep a good readability on large screens.

The sections have a height of 100vh (full height) and are centered by default. We will use the section--top, section--bottom, section--right and section--left classes to position the content inside the sections.

Our interface is ready, let's add the content!

Home scroll indicator

On the home section, we will add a scroll indicator to tell the user that he can scroll to see the other sections.

First, let's create a state to know if the user has scrolled:

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import { useScroll } from "@react-three/drei";
import { useFrame } from "@react-three/fiber";
import { useState } from "react";

export const Interface = () => {
  const scrollData = useScroll();
  const [hasScrolled, setHasScrolled] = useState(false);
  useFrame(() => {
    setHasScrolled(scrollData.offset > 0);
  });
  // ...
};

Then in the home section, we can add a motion.div with a variants object to create an animated scroll indicator:

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// ...
import { motion } from "framer-motion";

export const Interface = () => {
  // ...
  return (
    <div className="interface">
      <div className="sections">
        {/* HOME */}
        <section className="section section--bottom">
          <motion.div
            className="scroll-down"
            initial={{
              opacity: 0,
            }}
            animate={{
              opacity: hasScrolled ? 0 : 1,
            }}
          >
            <motion.div
              className="scroll-down__wheel"
              initial={{
                translateY: 0,
              }}
              animate={{
                translateY: 4,
              }}
              transition={{
                duration: 0.4,
                repeatDelay: 0.5,
                repeatType: "reverse",
                repeat: Infinity,
              }}
            ></motion.div>
          </motion.div>
        </section>
        {/* ... */}
      </div>
    </div>
  );
};

We are using framer motion to animate the opacity and the wheel position. To make the wheel move up and down, we use the repeat and repeatType properties.