// INSIDE CUBE — the camera stands INSIDE a huge box whose six walls all
// play the live video: a video room, panned around by the engine's interior
// rig while the wall seams glow in tempo. Pattern taught here: `cam:
// "inside"` puts the eye at the shape's centre; fx_place returns identity
// so the room holds still and only the gaze moves.
{
    name: "Inside Cube"
    engine: "videomesh"
    shape: "box"
    seed: 5

    size: 10.0
    cam: "inside"
    fly: 0.8

    beat_pulse: 0.4
    input0: "test"

    color_bg: #x04060c
    color_a: #x38b6e8
    color_b: #xe84f9a
    color_c: #xbfe8ff

    fog: 0.0
    glow: 1.0

    stages: [
        {kind: "bloom", threshold: 0.7, strength: 0.8, levels: 2}
    ]

    // THE LOOK LIVES HERE — the wall fragment. attr = (hash, face,
    // edge, id): edge is 0 on the wall seams, 1 mid-wall, so the seams
    // become beat-lit neon joints between six copies of the clip.
    shader: draw.DrawVjFxVideomesh {
        fx_place: fn(id: float, hash: float, t: float) -> vec4 {
            return vec4(0.0, 0.0, 0.0, 0.0)
        }
        fx_color: fn(t: float, attr: vec4, content: vec4, cmix: float) -> vec4 {
            let lit = content.xyz * (0.55 + 0.45 * attr.z)
            let seam = self.col_a.xyz * (1.0 - attr.z)
                * (0.5 + self.time_beat.w * 1.6 + clamp(self.user.z, 0.0, 4.0))
            return vec4((lit + seam) * self.fog.y, 1.0)
        }
    }
}