campfire/Assets/SteamVR/Scripts/SteamVR_Menu.cs

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2020-04-29 19:40:05 +02:00
//======= Copyright (c) Valve Corporation, All rights reserved. ===============
//
// Purpose: Example menu using OnGUI with SteamVR_Camera's overlay support
//
//=============================================================================
using UnityEngine;
using Valve.VR;
namespace Valve.VR
{
public class SteamVR_Menu : MonoBehaviour
{
public Texture cursor, background, logo;
public float logoHeight, menuOffset;
public Vector2 scaleLimits = new Vector2(0.1f, 5.0f);
public float scaleRate = 0.5f;
SteamVR_Overlay overlay;
Camera overlayCam;
Vector4 uvOffset;
float distance;
public RenderTexture texture { get { return overlay ? overlay.texture as RenderTexture : null; } }
public float scale { get; private set; }
string scaleLimitX, scaleLimitY, scaleRateText;
CursorLockMode savedCursorLockState;
bool savedCursorVisible;
void Awake()
{
scaleLimitX = string.Format("{0:N1}", scaleLimits.x);
scaleLimitY = string.Format("{0:N1}", scaleLimits.y);
scaleRateText = string.Format("{0:N1}", scaleRate);
var overlay = SteamVR_Overlay.instance;
if (overlay != null)
{
uvOffset = overlay.uvOffset;
distance = overlay.distance;
}
}
void OnGUI()
{
if (overlay == null)
return;
var texture = overlay.texture as RenderTexture;
var prevActive = RenderTexture.active;
RenderTexture.active = texture;
if (Event.current.type == EventType.Repaint)
GL.Clear(false, true, Color.clear);
var area = new Rect(0, 0, texture.width, texture.height);
// Account for screen smaller than texture (since mouse position gets clamped)
if (Screen.width < texture.width)
{
area.width = Screen.width;
overlay.uvOffset.x = -(float)(texture.width - Screen.width) / (2 * texture.width);
}
if (Screen.height < texture.height)
{
area.height = Screen.height;
overlay.uvOffset.y = (float)(texture.height - Screen.height) / (2 * texture.height);
}
GUILayout.BeginArea(area);
if (background != null)
{
GUI.DrawTexture(new Rect(
(area.width - background.width) / 2,
(area.height - background.height) / 2,
background.width, background.height), background);
}
GUILayout.BeginHorizontal();
GUILayout.FlexibleSpace();
GUILayout.BeginVertical();
if (logo != null)
{
GUILayout.Space(area.height / 2 - logoHeight);
GUILayout.Box(logo);
}
GUILayout.Space(menuOffset);
bool bHideMenu = GUILayout.Button("[Esc] - Close menu");
GUILayout.BeginHorizontal();
GUILayout.Label(string.Format("Scale: {0:N4}", scale));
{
var result = GUILayout.HorizontalSlider(scale, scaleLimits.x, scaleLimits.y);
if (result != scale)
{
SetScale(result);
}
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
GUILayout.Label(string.Format("Scale limits:"));
{
var result = GUILayout.TextField(scaleLimitX);
if (result != scaleLimitX)
{
if (float.TryParse(result, out scaleLimits.x))
scaleLimitX = result;
}
}
{
var result = GUILayout.TextField(scaleLimitY);
if (result != scaleLimitY)
{
if (float.TryParse(result, out scaleLimits.y))
scaleLimitY = result;
}
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
GUILayout.Label(string.Format("Scale rate:"));
{
var result = GUILayout.TextField(scaleRateText);
if (result != scaleRateText)
{
if (float.TryParse(result, out scaleRate))
scaleRateText = result;
}
}
GUILayout.EndHorizontal();
if (SteamVR.active)
{
var vr = SteamVR.instance;
GUILayout.BeginHorizontal();
{
var t = SteamVR_Camera.sceneResolutionScale;
int w = (int)(vr.sceneWidth * t);
int h = (int)(vr.sceneHeight * t);
int pct = (int)(100.0f * t);
GUILayout.Label(string.Format("Scene quality: {0}x{1} ({2}%)", w, h, pct));
var result = Mathf.RoundToInt(GUILayout.HorizontalSlider(pct, 50, 200));
if (result != pct)
{
SteamVR_Camera.sceneResolutionScale = (float)result / 100.0f;
}
}
GUILayout.EndHorizontal();
}
var tracker = SteamVR_Render.Top();
if (tracker != null)
{
tracker.wireframe = GUILayout.Toggle(tracker.wireframe, "Wireframe");
if (SteamVR.settings.trackingSpace == ETrackingUniverseOrigin.TrackingUniverseSeated)
{
if (GUILayout.Button("Switch to Standing"))
SteamVR.settings.trackingSpace = ETrackingUniverseOrigin.TrackingUniverseStanding;
if (GUILayout.Button("Center View"))
{
var system = OpenVR.System;
if (system != null)
system.ResetSeatedZeroPose();
}
}
else
{
if (GUILayout.Button("Switch to Seated"))
SteamVR.settings.trackingSpace = ETrackingUniverseOrigin.TrackingUniverseSeated;
}
}
#if !UNITY_EDITOR
if (GUILayout.Button("Exit"))
Application.Quit();
#endif
GUILayout.Space(menuOffset);
var env = System.Environment.GetEnvironmentVariable("VR_OVERRIDE");
if (env != null)
{
GUILayout.Label("VR_OVERRIDE=" + env);
}
GUILayout.Label("Graphics device: " + SystemInfo.graphicsDeviceVersion);
GUILayout.EndVertical();
GUILayout.FlexibleSpace();
GUILayout.EndHorizontal();
GUILayout.EndArea();
if (cursor != null)
{
float x = Input.mousePosition.x, y = Screen.height - Input.mousePosition.y;
float w = cursor.width, h = cursor.height;
GUI.DrawTexture(new Rect(x, y, w, h), cursor);
}
RenderTexture.active = prevActive;
if (bHideMenu)
HideMenu();
}
public void ShowMenu()
{
var overlay = SteamVR_Overlay.instance;
if (overlay == null)
return;
var texture = overlay.texture as RenderTexture;
if (texture == null)
{
Debug.LogError("<b>[SteamVR]</b> Menu requires overlay texture to be a render texture.", this);
return;
}
SaveCursorState();
Cursor.visible = true;
Cursor.lockState = CursorLockMode.None;
this.overlay = overlay;
uvOffset = overlay.uvOffset;
distance = overlay.distance;
// If an existing camera is rendering into the overlay texture, we need
// to temporarily disable it to keep it from clearing the texture on us.
var cameras = Object.FindObjectsOfType(typeof(Camera)) as Camera[];
foreach (var cam in cameras)
{
if (cam.enabled && cam.targetTexture == texture)
{
overlayCam = cam;
overlayCam.enabled = false;
break;
}
}
var tracker = SteamVR_Render.Top();
if (tracker != null)
scale = tracker.origin.localScale.x;
}
public void HideMenu()
{
RestoreCursorState();
if (overlayCam != null)
overlayCam.enabled = true;
if (overlay != null)
{
overlay.uvOffset = uvOffset;
overlay.distance = distance;
overlay = null;
}
}
void Update()
{
if (Input.GetKeyDown(KeyCode.Escape) || Input.GetKeyDown(KeyCode.Joystick1Button7))
{
if (overlay == null)
{
ShowMenu();
}
else
{
HideMenu();
}
}
else if (Input.GetKeyDown(KeyCode.Home))
{
SetScale(1.0f);
}
else if (Input.GetKey(KeyCode.PageUp))
{
SetScale(Mathf.Clamp(scale + scaleRate * Time.deltaTime, scaleLimits.x, scaleLimits.y));
}
else if (Input.GetKey(KeyCode.PageDown))
{
SetScale(Mathf.Clamp(scale - scaleRate * Time.deltaTime, scaleLimits.x, scaleLimits.y));
}
}
void SetScale(float scale)
{
this.scale = scale;
var tracker = SteamVR_Render.Top();
if (tracker != null)
tracker.origin.localScale = new Vector3(scale, scale, scale);
}
void SaveCursorState()
{
savedCursorVisible = Cursor.visible;
savedCursorLockState = Cursor.lockState;
}
void RestoreCursorState()
{
Cursor.visible = savedCursorVisible;
Cursor.lockState = savedCursorLockState;
}
}
}