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Files
VR-Web-Player/src/vr180player/projection.ts
2026-06-10 10:35:14 +10:00

81 lines
2.2 KiB
TypeScript

export function isLeftEyeCamera(renderingRenderer: any, activeCamera: any): boolean {
const xrCamera = renderingRenderer.xr.getCamera();
if (xrCamera && xrCamera.cameras && xrCamera.cameras.length >= 2) {
if (activeCamera === xrCamera.cameras[0]) {
return true;
}
if (activeCamera === xrCamera.cameras[1]) {
return false;
}
const viewMatrixX = activeCamera.matrixWorldInverse.elements[12];
const leftCamX = xrCamera.cameras[0].matrixWorldInverse.elements[12];
const rightCamX = xrCamera.cameras[1].matrixWorldInverse.elements[12];
const diffToLeft = Math.abs(viewMatrixX - leftCamX);
const diffToRight = Math.abs(viewMatrixX - rightCamX);
if (diffToLeft < 0.001 || diffToLeft < diffToRight) {
return true;
}
if (diffToRight < 0.001) {
return false;
}
}
return activeCamera.projectionMatrix.elements[8] <= 0;
}
export function applySbsTextureWindow(
renderingRenderer: any,
activeCamera: any,
material: any,
is2DMode: boolean
): void {
if (!material.map) return;
const isPresentingXR = renderingRenderer.xr.isPresenting;
if (is2DMode && !isPresentingXR) {
material.map.offset.x = 0;
material.map.repeat.x = 0.5;
material.map.offset.y = 0;
material.map.repeat.y = 1;
return;
}
material.map.offset.x = 0;
material.map.repeat.x = 1;
material.map.offset.y = 0;
material.map.repeat.y = 1;
if (!isPresentingXR) {
return;
}
material.map.offset.x = isLeftEyeCamera(renderingRenderer, activeCamera) ? 0 : 0.5;
material.map.repeat.x = 0.5;
}
export function hideContentMeshes(vr180Mesh: any, planeMesh: any): void {
if (vr180Mesh) vr180Mesh.visible = false;
if (planeMesh) planeMesh.visible = false;
}
export function showActiveContentMesh(vr180Mesh: any, planeMesh: any, activeContentMesh: any): void {
hideContentMeshes(vr180Mesh, planeMesh);
if (activeContentMesh) {
activeContentMesh.visible = true;
}
}
export function positionPlaneForPresentation(
planeMesh: any,
camera2D: any,
isFallback2D: boolean,
planeDistance: number,
plane2DDistance: number
): void {
if (!planeMesh) return;
const zPosition = isFallback2D && camera2D ? camera2D.position.z - plane2DDistance : -planeDistance;
planeMesh.position.set(0, 1.6, zPosition);
}