protected void UpdateCameraFramePlaneObject()

in Networked Physics/Assets/Oculus/VR/Scripts/Composition/OVRCameraComposition.cs [111:210]
92 lines of code
17 McCabe index (conditional complexity)

	protected void UpdateCameraFramePlaneObject(Camera mainCamera, Camera mixedRealityCamera, RenderTexture boundaryMeshMaskTexture)
	{
		bool hasError = false;
		Material cameraFrameMaterial = cameraFramePlaneObject.GetComponent<MeshRenderer>().material;
		Texture2D colorTexture = Texture2D.blackTexture;
		Texture2D depthTexture = Texture2D.whiteTexture;
		if (OVRPlugin.IsCameraDeviceColorFrameAvailable(cameraDevice))
		{
			colorTexture = OVRPlugin.GetCameraDeviceColorFrameTexture(cameraDevice);
		}
		else
		{
			Debug.LogWarning("Camera: color frame not ready");
			hasError = true;
		}
		bool cameraSupportsDepth = OVRPlugin.DoesCameraDeviceSupportDepth(cameraDevice);
		if (useDynamicLighting && cameraSupportsDepth)
		{
			if (OVRPlugin.IsCameraDeviceDepthFrameAvailable(cameraDevice))
			{
				depthTexture = OVRPlugin.GetCameraDeviceDepthFrameTexture(cameraDevice);
			}
			else
			{
				Debug.LogWarning("Camera: depth frame not ready");
				hasError = true;
			}
		}
		if (!hasError)
		{
			Vector3 offset = mainCamera.transform.position - mixedRealityCamera.transform.position;
			float distance = Vector3.Dot(mixedRealityCamera.transform.forward, offset);
			cameraFramePlaneDistance = distance;

			cameraFramePlaneObject.transform.position = mixedRealityCamera.transform.position + mixedRealityCamera.transform.forward * distance;
			cameraFramePlaneObject.transform.rotation = mixedRealityCamera.transform.rotation;

			float tanFov = Mathf.Tan(mixedRealityCamera.fieldOfView * Mathf.Deg2Rad * 0.5f);
			cameraFramePlaneObject.transform.localScale = new Vector3(distance * mixedRealityCamera.aspect * tanFov * 2.0f, distance * tanFov * 2.0f, 1.0f);

			float worldHeight = distance * tanFov * 2.0f;
			float worldWidth = worldHeight * mixedRealityCamera.aspect;

			float cullingDistance = float.MaxValue;

			cameraRig = null;
			if (OVRManager.instance.virtualGreenScreenType != OVRManager.VirtualGreenScreenType.Off)
			{
				cameraRig = mainCamera.GetComponentInParent<OVRCameraRig>();
				if (cameraRig != null)
				{
					if (cameraRig.centerEyeAnchor == null)
					{
						cameraRig = null;
					}
				}
				RefreshBoundaryMesh(mixedRealityCamera, out cullingDistance);
			}

			cameraFrameMaterial.mainTexture = colorTexture;
			cameraFrameMaterial.SetTexture("_DepthTex", depthTexture);
			cameraFrameMaterial.SetVector("_FlipParams", new Vector4((OVRManager.instance.flipCameraFrameHorizontally ? 1.0f : 0.0f), (OVRManager.instance.flipCameraFrameVertically ? 1.0f : 0.0f), 0.0f, 0.0f));
			cameraFrameMaterial.SetColor("_ChromaKeyColor", OVRManager.instance.chromaKeyColor);
			cameraFrameMaterial.SetFloat("_ChromaKeySimilarity", OVRManager.instance.chromaKeySimilarity);
			cameraFrameMaterial.SetFloat("_ChromaKeySmoothRange", OVRManager.instance.chromaKeySmoothRange);
			cameraFrameMaterial.SetFloat("_ChromaKeySpillRange", OVRManager.instance.chromaKeySpillRange);
			cameraFrameMaterial.SetVector("_TextureDimension", new Vector4(colorTexture.width, colorTexture.height, 1.0f / colorTexture.width, 1.0f / colorTexture.height));
			cameraFrameMaterial.SetVector("_TextureWorldSize", new Vector4(worldWidth, worldHeight, 0, 0));
			cameraFrameMaterial.SetFloat("_SmoothFactor", OVRManager.instance.dynamicLightingSmoothFactor);
			cameraFrameMaterial.SetFloat("_DepthVariationClamp", OVRManager.instance.dynamicLightingDepthVariationClampingValue);
			cameraFrameMaterial.SetFloat("_CullingDistance", cullingDistance);
			if (OVRManager.instance.virtualGreenScreenType == OVRManager.VirtualGreenScreenType.Off || boundaryMesh == null || boundaryMeshMaskTexture == null)
			{
				cameraFrameMaterial.SetTexture("_MaskTex", Texture2D.whiteTexture);
			}
			else
			{
				if (cameraRig == null)
				{
					if (!nullcameraRigWarningDisplayed)
					{
						Debug.LogWarning("Could not find the OVRCameraRig/CenterEyeAnchor object. Please check if the OVRCameraRig has been setup properly. The virtual green screen has been temporarily disabled");
						nullcameraRigWarningDisplayed = true;
					}

					cameraFrameMaterial.SetTexture("_MaskTex", Texture2D.whiteTexture);
				}
				else
				{
					if (nullcameraRigWarningDisplayed)
					{
						Debug.Log("OVRCameraRig/CenterEyeAnchor object found. Virtual green screen is activated");
						nullcameraRigWarningDisplayed = false;
					}

					cameraFrameMaterial.SetTexture("_MaskTex", boundaryMeshMaskTexture);
				}
			}
		}
	}