react-native-filament
Version:
A real-time physically based 3D rendering engine for React Native
62 lines (61 loc) • 2.55 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.ModelInstance = ModelInstance;
var _react = _interopRequireWildcard(require("react"));
var _ParentInstancesContext = require("./ParentInstancesContext");
var _useApplyTransformations = require("../hooks/internal/useApplyTransformations");
var _jsxRuntime = require("react/jsx-runtime");
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
/**
* You can render multiple instances of the same model. If you use a model multiple times this is recommended,
* as it will only be loaded once into memory.
* This component helps with applying configs to a specific instance of a model.
*
* @example
* ```tsx
* <Model source={require('model.glb')} instanceCount={2}>
* <ModelInstance index={0} scale={[1, 1, 1]} />
* <ModelInstance index={1} scale={[2, 2, 2]} />
* </Model>
* ```
*
*/
function ModelInstance({
index,
...restProps
}) {
const instances = (0, _ParentInstancesContext.useParentInstancesContext)();
const instance = instances[index];
if (instance == null) {
throw new Error(`The parent Model component has ${instances.length} instances. You tried to use index ${index}`);
}
return /*#__PURE__*/(0, _jsxRuntime.jsx)(ModelInstanceImpl, {
instance: instance,
...restProps
});
}
function ModelInstanceImpl({
instance,
children,
...transformProps
}) {
const rootEntity = (0, _react.useMemo)(() => {
return instance.getRoot();
}, [instance]);
const boundingBox = (0, _react.useMemo)(() => {
return instance.getBoundingBox();
}, [instance]);
const instances = (0, _react.useMemo)(() => [instance], [instance]);
(0, _useApplyTransformations.useApplyTransformations)({
transformProps,
to: rootEntity,
aabb: boundingBox
});
return /*#__PURE__*/(0, _jsxRuntime.jsx)(_ParentInstancesContext.ParentInstancesContext.Provider, {
value: instances,
children: children
});
}
//# sourceMappingURL=ModelInstance.js.map