forge-camera-and-input

To add a first-person camera to an SDL3 GPU scene, you need quaternion orientation and keyboard state handling for WASD movement. This approach uses relative mouse mode for look control, enabling interactive real-time navigation in 3D environments.

Quaternion orientation handles FPS mouse look by deriving yaw and pitch rotations to calculate the view matrix. This provides smooth, gimbal-lock-free camera control when integrated with per-frame delta-time updates for movement.

Yes, you can use delta-time movement to make SDL3 camera navigation frame-rate independent. The implementation clamps delta-time per frame to prevent jerky motion during sudden frame drops, ensuring smooth real-time 3D exploration.

Yes, you need the depth-and-3d MVP pipeline and quaternion math utilities like quat_from_euler and quat_forward to build a view matrix. These dependencies provide the necessary 3D projection and vector extraction for the camera.

The best way to capture mouse input for 3D scene exploration in SDL3 is using relative mouse mode. This captures mouse motion deltas directly for camera look control without moving the cursor on screen, paired with keyboard state for movement.

Your FPS camera stutters because movement updates lack delta-time clamping or quaternion-based orientation. Applying a clamped per-frame delta-time to position updates ensures frame-rate independent motion, preventing jerky navigation during 3D exploration.