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84 lines
2.5 KiB
84 lines
2.5 KiB
//======= Copyright (c) Valve Corporation, All rights reserved. ===============
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using UnityEngine;
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public class SteamVR_TestTrackedCamera : MonoBehaviour
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{
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public Material material;
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public Transform target;
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public bool undistorted = true;
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public bool cropped = true;
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void OnEnable()
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{
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// The video stream must be symmetrically acquired and released in
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// order to properly disable the stream once there are no consumers.
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var source = SteamVR_TrackedCamera.Source(undistorted);
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source.Acquire();
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// Auto-disable if no camera is present.
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if (!source.hasCamera)
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enabled = false;
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}
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void OnDisable()
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{
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// Clear the texture when no longer active.
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material.mainTexture = null;
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// The video stream must be symmetrically acquired and released in
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// order to properly disable the stream once there are no consumers.
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var source = SteamVR_TrackedCamera.Source(undistorted);
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source.Release();
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}
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void Update()
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{
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var source = SteamVR_TrackedCamera.Source(undistorted);
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var texture = source.texture;
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if (texture == null)
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{
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return;
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}
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// Apply the latest texture to the material. This must be performed
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// every frame since the underlying texture is actually part of a ring
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// buffer which is updated in lock-step with its associated pose.
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// (You actually really only need to call any of the accessors which
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// internally call Update on the SteamVR_TrackedCamera.VideoStreamTexture).
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material.mainTexture = texture;
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// Adjust the height of the quad based on the aspect to keep the texels square.
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var aspect = (float)texture.width / texture.height;
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// The undistorted video feed has 'bad' areas near the edges where the original
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// square texture feed is stretched to undo the fisheye from the lens.
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// Therefore, you'll want to crop it to the specified frameBounds to remove this.
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if (cropped)
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{
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var bounds = source.frameBounds;
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material.mainTextureOffset = new Vector2(bounds.uMin, bounds.vMin);
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var du = bounds.uMax - bounds.uMin;
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var dv = bounds.vMax - bounds.vMin;
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material.mainTextureScale = new Vector2(du, dv);
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aspect *= Mathf.Abs(du / dv);
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}
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else
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{
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material.mainTextureOffset = Vector2.zero;
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material.mainTextureScale = new Vector2(1, -1);
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}
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target.localScale = new Vector3(1, 1.0f / aspect, 1);
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// Apply the pose that this frame was recorded at.
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if (source.hasTracking)
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{
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var t = source.transform;
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target.localPosition = t.pos;
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target.localRotation = t.rot;
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}
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}
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}
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