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fix: camera/lights/fog in meters (STEP units), BMU board included in assembly

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Clément SAILLANT
2026-03-30 16:49:20 +00:00
parent 34968c32e7
commit 5959141642
2 changed files with 20 additions and 22 deletions
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public/assets/models3d/bmu-assembly.glb
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src/components/WebGLBackground.tsx
+20 -22
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@@ -361,28 +361,26 @@ function CameraLight() {
useFrame(() => {
if (!lightRef.current) return;
lightRef.current.position.copy(camera.position);
lightRef.current.position.y += 15;
lightRef.current.position.y += 0.03;
});
return (
<pointLight ref={lightRef} intensity={0.6} color="#ffffff" distance={200} decay={1.5} />
<pointLight ref={lightRef} intensity={0.6} color="#ffffff" distance={0.5} decay={1.5} />
);
}
/* ---------- Camera — orbits around PCB, zooms on scroll ---------- */
// PCB bounds: X[-74,81] Y[-43,63] Z[-17,150] mm. Center ≈ (4, 10, 66).
// After rotation -π/2 on X, the Y/Z swap: model Y→scene -Z, model Z→scene Y.
// So in scene coords, board center ≈ (4, 66, -10), extends ~155mm in Y (height).
const BOARD_CENTER = [4, 66, -10];
// STEP units = METERS. Board ~0.17m wide, ~0.10m tall. After -π/2 X rotation:
// model Y→scene -Z, model Z→scene Y. Board center ≈ (0, 0.04, 0).
const CAMERA_STOPS = [
{ scroll: 0.00, pos: [0, 250, 120], look: [4, 66, -10] }, // Overview — sees full assembly
{ scroll: 0.12, pos: [50, 140, 20], look: [40, 80, -10] }, // MCU zone (top-right)
{ scroll: 0.28, pos: [-40, 140, 20], look: [-30, 80, -10] }, // Analog zone (top-left)
{ scroll: 0.42, pos: [40, 40, -20], look: [30, 20, -10] }, // Power zone (bottom-right)
{ scroll: 0.56, pos: [-40, 40, -20], look: [-30, 20, -10] }, // Formation zone (bottom-left)
{ scroll: 0.70, pos: [0, 120, 40], look: [0, 100, -10] }, // Missions zone (mid)
{ scroll: 0.85, pos: [4, 80, 5], look: [4, 66, -10] }, // Contact (center close)
{ scroll: 1.00, pos: [0, 300, 150], look: [4, 66, -10] }, // Pull back
{ scroll: 0.00, pos: [0, 0.3, 0.2], look: [0, 0.04, 0] }, // Overview
{ scroll: 0.12, pos: [0.06, 0.12, 0.02], look: [0.04, 0.04, 0] }, // MCU (right)
{ scroll: 0.28, pos: [-0.06, 0.12, 0.02], look: [-0.04, 0.04, 0] }, // Analog (left)
{ scroll: 0.42, pos: [0.05, 0.08, -0.03], look: [0.03, 0.04, -0.02] }, // Power
{ scroll: 0.56, pos: [-0.05, 0.08, -0.03], look: [-0.03, 0.04, -0.02] }, // Formation
{ scroll: 0.70, pos: [0, 0.15, 0.05], look: [0, 0.06, 0] }, // Missions
{ scroll: 0.85, pos: [0, 0.08, 0.01], look: [0, 0.04, 0] }, // Contact (close)
{ scroll: 1.00, pos: [0, 0.4, 0.25], look: [0, 0.04, 0] }, // Pull back
];
function OrbitCamera() {
@@ -405,10 +403,10 @@ function OrbitCamera() {
const t = range > 0 ? (s - a.scroll) / range : 0;
const ease = t * t * (3 - 2 * t);
const tx = a.pos[0] + (b.pos[0] - a.pos[0]) * ease + pointer.x * 20;
const ty = a.pos[1] + (b.pos[1] - a.pos[1]) * ease + pointer.y * 8;
const tx = a.pos[0] + (b.pos[0] - a.pos[0]) * ease + pointer.x * 0.03;
const ty = a.pos[1] + (b.pos[1] - a.pos[1]) * ease + pointer.y * 0.01;
const tz = a.pos[2] + (b.pos[2] - a.pos[2]) * ease;
const lx = a.look[0] + (b.look[0] - a.look[0]) * ease + pointer.x * 5;
const lx = a.look[0] + (b.look[0] - a.look[0]) * ease + pointer.x * 0.005;
const ly = a.look[1] + (b.look[1] - a.look[1]) * ease;
const lz = a.look[2] + (b.look[2] - a.look[2]) * ease;
@@ -467,18 +465,18 @@ export default function WebGLBackground() {
aria-hidden="true"
>
<Canvas
camera={{ position: [0, 250, 120], fov: 50 }}
camera={{ position: [0, 0.3, 0.2], fov: 50 }}
dpr={[1, 1.5]}
gl={{ antialias: true, alpha: true, powerPreference: 'high-performance' }}
style={{ pointerEvents: 'auto' }}
>
<color attach="background" args={['#060a06']} />
<fog attach="fog" args={['#060a06', 150, 500]} />
<fog attach="fog" args={['#060a06', 0.2, 0.8]} />
<ambientLight intensity={0.25} />
<directionalLight position={[60, 120, 60]} intensity={0.7} color="#ffffff" />
<directionalLight position={[-60, 100, -60]} intensity={0.3} color="#5bd1d8" />
<pointLight position={[0, 60, 0]} intensity={0.4} color="#f1c27a" distance={250} />
<directionalLight position={[0.1, 0.2, 0.1]} intensity={0.7} color="#ffffff" />
<directionalLight position={[-0.1, 0.15, -0.1]} intensity={0.3} color="#5bd1d8" />
<pointLight position={[0, 0.1, 0]} intensity={0.4} color="#f1c27a" distance={0.5} />
<CameraLight />
<OrbitCamera />