fix: use consistent XR session check for viewport sizing and add stereo GSplat test example#8557
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mvaligursky merged 1 commit intomainfrom Mar 30, 2026
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…eo GSplat test example The renderer's viewport_size uniform used camera.xr?.active to halve the width for stereo sessions, but the forward renderer's XR view loop checks camera.xr?.session. This inconsistency caused incorrect viewport sizing when using simulated/fake XR sessions. Changed to .session for consistency. Added a hidden gaussian-splatting/xr-views test example that simulates stereo XR rendering with two side-by-side viewports using a fake XR session. Includes an "Exaggerated Stereo" toggle to switch between realistic interpupillary distance and a wide offset for visual debugging. Both modes converge on the orbit target point. Made-with: Cursor
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Fix viewport width calculation for stereo XR sessions and add a hidden test example for stereo Gaussian Splat rendering.
Changes:
viewport_sizeuniform incorrectly using full canvas width instead of per-eye width during XR sessions. The check usedcamera.xr?.activewhich only works with the real XR manager, but the forward renderer's view loop usescamera.xr?.session— changed to.sessionfor consistency.gaussian-splatting/xr-viewstest example that simulates stereo XR rendering with two side-by-side viewports using a fake XR session, useful for testing GSplat stereo rendering without an HMD.