//Convert OSVR.ClientKit.Viewport to Rect
public static Rect ConvertViewport(OSVR.ClientKit.Viewport viewport, OSVR.ClientKit.DisplayDimensions surfaceDisplayDimensions, int numDisplayInputs, int eyeIndex, int totalDisplayWidth)
{
//Unity expects normalized coordinates, not pixel coordinates
if (numDisplayInputs == 1)
{
return(new Rect((float)viewport.Left / (float)surfaceDisplayDimensions.Width,
(float)viewport.Bottom / (float)surfaceDisplayDimensions.Height,
(float)viewport.Width / (float)surfaceDisplayDimensions.Width,
(float)viewport.Height / (float)surfaceDisplayDimensions.Height));
}
else if (numDisplayInputs == 2)
{
//with two inputs in fullscreen mode, viewports expect to fill the screen
//Unity can only output to one window, so we offset the right eye by half the total width of the displays
return(new Rect(eyeIndex == 0 ? 0 : 0.5f + (float)viewport.Left / (float)totalDisplayWidth,
(float)viewport.Bottom / (float)surfaceDisplayDimensions.Height,
(float)viewport.Width / (float)totalDisplayWidth,
(float)viewport.Height / (float)surfaceDisplayDimensions.Height));
}
else
{
Debug.LogError("[OSVR-Unity] More than two video inputs is not supported. Using default viewport.");
return(new Rect(0, 0, 0.5f, 1f));
}
}
//For each Surface, update viewing parameters and render the surface
public void UpdateSurfaces()
{
//for each surface
for (uint surfaceIndex = 0; surfaceIndex < SurfaceCount; surfaceIndex++)
{
//get the eye's surface
VRSurface surface = Surfaces[surfaceIndex];
//get viewport from ClientKit and set surface viewport
OSVR.ClientKit.Viewport viewport = Viewer.DisplayController.DisplayConfig.GetRelativeViewportForViewerEyeSurface(
Viewer.ViewerIndex, (byte)_eyeIndex, surfaceIndex);
surface.SetViewport(Math.ConvertViewport(viewport));
//get projection matrix from ClientKit and set surface projection matrix
OSVR.ClientKit.Matrix44f projMatrix = Viewer.DisplayController.DisplayConfig.GetProjectionMatrixForViewerEyeSurfacef(
Viewer.ViewerIndex, (byte)_eyeIndex, surfaceIndex,
surface.Camera.nearClipPlane, surface.Camera.farClipPlane, OSVR.ClientKit.MatrixConventionsFlags.ColMajor);
surface.SetProjectionMatrix(Math.ConvertMatrix(projMatrix));
//render the surface
surface.Render();
}
}
//Get the viewport of a given eye from RenderManager
public OSVR.ClientKit.Viewport GetEyeViewport(int eye)
{
OSVR.ClientKit.Viewport v = new OSVR.ClientKit.Viewport();
OSVR_ViewportDescription viewportDescription = GetViewport(eye);
v.Left = (int)viewportDescription.left;
v.Bottom = (int)viewportDescription.lower;
v.Width = (int)viewportDescription.width;
v.Height = (int)viewportDescription.height;
return(v);
}
private void CreateRenderTextures()
{
if (stereoRigSetup == StereoRigSetup.OneCameraBothEyes)
{
//create a RenderTexture for this eye's camera to render into
RenderTexture renderTexture = new RenderTexture((int)TotalDisplayWidth, (int)TotalDisplayHeight, 24, RenderTextureFormat.Default);
if (QualitySettings.antiAliasing > 0)
{
renderTexture.antiAliasing = QualitySettings.antiAliasing;
}
StereoTargetRenderTexture0 = renderTexture;
_camera0.targetTexture = StereoTargetRenderTexture0;
RenderTexture.active = StereoTargetRenderTexture0;
//Set the native texture pointer so we can access this texture from the plugin
RenderManager.SetEyeColorBuffer(renderTexture.GetNativeTexturePtr(), 0);
RenderManager.SetEyeColorBuffer(renderTexture.GetNativeTexturePtr(), 1);
}
else //two-camera setup
{
//left eye
OSVR.ClientKit.Viewport leftEyeViewport = RenderManager.GetEyeViewport(0);
//create a RenderTexture for this eye's camera to render into
RenderTexture renderTexture0 = new RenderTexture(leftEyeViewport.Width, leftEyeViewport.Height, 24, RenderTextureFormat.Default);
if (QualitySettings.antiAliasing > 0)
{
renderTexture0.antiAliasing = QualitySettings.antiAliasing;
}
StereoTargetRenderTexture0 = renderTexture0;
_camera0.targetTexture = StereoTargetRenderTexture0;
//right eye
OSVR.ClientKit.Viewport rightEyeViewport = RenderManager.GetEyeViewport(1);
//create a RenderTexture for this eye's camera to render into
RenderTexture renderTexture1 = new RenderTexture(rightEyeViewport.Width, rightEyeViewport.Height, 24, RenderTextureFormat.Default);
if (QualitySettings.antiAliasing > 0)
{
renderTexture1.antiAliasing = QualitySettings.antiAliasing;
}
StereoTargetRenderTexture1 = renderTexture1;
_camera1.targetTexture = StereoTargetRenderTexture1;
//set rendermanager color buffers
//Set the native texture pointer so we can access this texture from the plugin
RenderManager.SetEyeColorBuffer(renderTexture0.GetNativeTexturePtr(), 0);
RenderManager.SetEyeColorBuffer(renderTexture1.GetNativeTexturePtr(), 1);
}
}
//Set the camera's viewport rect
public void SetViewport(OSVR.ClientKit.Viewport viewport)
{
Viewport = viewport;
}
//Get the viewport of a given eye from RenderManager
public OSVR.ClientKit.Viewport GetEyeViewport(int eye)
{
OSVR.ClientKit.Viewport v = new OSVR.ClientKit.Viewport();
OSVR_ViewportDescription viewportDescription = GetViewport(eye);
v.Left = (int)viewportDescription.left;
v.Bottom = (int)viewportDescription.lower;
v.Width = (int)viewportDescription.width;
v.Height = (int)viewportDescription.height;
return v;
}
public static Rect ConvertViewportRenderManager(OSVR.ClientKit.Viewport viewport)
{
//Unity expects normalized coordinates, not pixel coordinates
//@todo below assumes left and right eyes split the screen in half horizontally
return(new Rect(viewport.Left / viewport.Width, viewport.Bottom / viewport.Height, viewport.Width / viewport.Width, 1));
}
