public static Vector2[] GetStencilMask()
{
HiddenAreaMesh_t leftMesh = m_vrSystem.GetHiddenAreaMesh(EVREye.Eye_Left);
HiddenAreaMesh_t rightMesh = m_vrSystem.GetHiddenAreaMesh(EVREye.Eye_Right);
uint leftVertsCount = leftMesh.unTriangleCount * 3;
uint rightVertsCount = rightMesh.unTriangleCount * 3;
Vector2[] verts = new Vector2[leftVertsCount + rightVertsCount];
unsafe
{
uint index = 0;
for (int i = 0, j = 0; i < leftMesh.unTriangleCount * 3; i++)
{
Vector2 vertex;
float x = ((float *)leftMesh.pVertexData.ToPointer())[j++];
float y = ((float *)leftMesh.pVertexData.ToPointer())[j++];
vertex.X = -1 + 2 * x;
vertex.Y = -1 + 2 * y;
vertex.X = vertex.X / 2 - 0.5f;
verts[index++] = vertex;
}
for (int i = 0, j = 0; i < rightMesh.unTriangleCount * 3; i++)
{
Vector2 vertex;
float x = ((float *)rightMesh.pVertexData.ToPointer())[j++];
float y = ((float *)rightMesh.pVertexData.ToPointer())[j++];
vertex.X = -1 + 2 * x;
vertex.Y = -1 + 2 * y;
vertex.X = vertex.X / 2 + 0.5f;
verts[index++] = vertex;
}
}
return(verts);
}
void GetMeshData(HiddenAreaMesh_t meshData, ISpread <float> ret)
{
var floatCount = (int)meshData.unTriangleCount * 3 * 2;
ret.SliceCount = floatCount;
Marshal.Copy(meshData.pVertexData, ret.Stream.Buffer, 0, floatCount);
}
public static HiddenAreaMesh Make(Device device, EVREye eye)
{
HiddenAreaMesh_t hiddenAreaMeshDefinition = OpenVR.System.GetHiddenAreaMesh(eye, EHiddenAreaMeshType.k_eHiddenAreaMesh_Standard);
int triangleCount = (int)hiddenAreaMeshDefinition.unTriangleCount;
if (triangleCount == 0)
{
return(null);
}
int vertexCount = triangleCount * 3;
Buffer vertexBuffer = new Buffer(device, hiddenAreaMeshDefinition.pVertexData, new BufferDescription {
SizeInBytes = vertexCount * Vector2.SizeInBytes,
BindFlags = BindFlags.VertexBuffer,
Usage = ResourceUsage.Immutable
});
VertexBufferBinding vertexBufferBinding = new VertexBufferBinding(vertexBuffer, Vector2.SizeInBytes, 0);
return(new HiddenAreaMesh(vertexCount, vertexBufferBinding));
}
public static Mesh CreateHiddenAreaMesh(HiddenAreaMesh_t src, VRTextureBounds_t bounds)
{
if (src.unTriangleCount == 0)
{
return(null);
}
var data = new float[src.unTriangleCount * 3 * 2]; //HmdVector2_t
Marshal.Copy(src.pVertexData, data, 0, data.Length);
var vertices = new Vector3[src.unTriangleCount * 3 + 12];
var indices = new int[src.unTriangleCount * 3 + 24];
var x0 = 2.0f * bounds.uMin - 1.0f;
var x1 = 2.0f * bounds.uMax - 1.0f;
var y0 = 2.0f * bounds.vMin - 1.0f;
var y1 = 2.0f * bounds.vMax - 1.0f;
for (int i = 0, j = 0; i < src.unTriangleCount * 3; i++)
{
var x = Lerp(x0, x1, data[j++]);
var y = Lerp(y0, y1, data[j++]);
vertices[i] = new Vector3(x, y, 0.0f);
indices[i] = i;
}
// Add border
var offset = (int)src.unTriangleCount * 3;
var iVert = offset;
vertices[iVert++] = new Vector3(-1, -1, 0);
vertices[iVert++] = new Vector3(x0, -1, 0);
vertices[iVert++] = new Vector3(-1, 1, 0);
vertices[iVert++] = new Vector3(x0, 1, 0);
vertices[iVert++] = new Vector3(x1, -1, 0);
vertices[iVert++] = new Vector3(1, -1, 0);
vertices[iVert++] = new Vector3(x1, 1, 0);
vertices[iVert++] = new Vector3(1, 1, 0);
vertices[iVert++] = new Vector3(x0, y0, 0);
vertices[iVert++] = new Vector3(x1, y0, 0);
vertices[iVert++] = new Vector3(x0, y1, 0);
vertices[iVert++] = new Vector3(x1, y1, 0);
var iTri = offset;
indices[iTri++] = offset + 0;
indices[iTri++] = offset + 1;
indices[iTri++] = offset + 2;
indices[iTri++] = offset + 2;
indices[iTri++] = offset + 1;
indices[iTri++] = offset + 3;
indices[iTri++] = offset + 4;
indices[iTri++] = offset + 5;
indices[iTri++] = offset + 6;
indices[iTri++] = offset + 6;
indices[iTri++] = offset + 5;
indices[iTri++] = offset + 7;
indices[iTri++] = offset + 1;
indices[iTri++] = offset + 4;
indices[iTri++] = offset + 8;
indices[iTri++] = offset + 8;
indices[iTri++] = offset + 4;
indices[iTri++] = offset + 9;
indices[iTri++] = offset + 10;
indices[iTri++] = offset + 11;
indices[iTri++] = offset + 3;
indices[iTri++] = offset + 3;
indices[iTri++] = offset + 11;
indices[iTri++] = offset + 6;
var mesh = new Mesh();
mesh.vertices = vertices;
mesh.triangles = indices;
mesh.bounds = new Bounds(Vector3.zero, new Vector3(float.MaxValue, float.MaxValue, float.MaxValue)); // Prevent frustum culling from culling this mesh
return(mesh);
}
public static Mesh CreateHiddenAreaMesh(HiddenAreaMesh_t src, VRTextureBounds_t bounds)
{
if (src.unTriangleCount == 0u)
{
return(null);
}
float[] array = new float[src.unTriangleCount * 3u * 2u];
Marshal.Copy(src.pVertexData, array, 0, array.Length);
Vector3[] array2 = new Vector3[src.unTriangleCount * 3u + 12u];
int[] array3 = new int[src.unTriangleCount * 3u + 24u];
float num = 2f * bounds.uMin - 1f;
float num2 = 2f * bounds.uMax - 1f;
float num3 = 2f * bounds.vMin - 1f;
float num4 = 2f * bounds.vMax - 1f;
int num5 = 0;
int num6 = 0;
while ((long)num5 < (long)((ulong)(src.unTriangleCount * 3u)))
{
float x = SteamVR_Utils.Lerp(num, num2, array[num6++]);
float y = SteamVR_Utils.Lerp(num3, num4, array[num6++]);
array2[num5] = new Vector3(x, y, 0f);
array3[num5] = num5;
num5++;
}
int num7 = (int)(src.unTriangleCount * 3u);
int num8 = num7;
array2[num8++] = new Vector3(-1f, -1f, 0f);
array2[num8++] = new Vector3(num, -1f, 0f);
array2[num8++] = new Vector3(-1f, 1f, 0f);
array2[num8++] = new Vector3(num, 1f, 0f);
array2[num8++] = new Vector3(num2, -1f, 0f);
array2[num8++] = new Vector3(1f, -1f, 0f);
array2[num8++] = new Vector3(num2, 1f, 0f);
array2[num8++] = new Vector3(1f, 1f, 0f);
array2[num8++] = new Vector3(num, num3, 0f);
array2[num8++] = new Vector3(num2, num3, 0f);
array2[num8++] = new Vector3(num, num4, 0f);
array2[num8++] = new Vector3(num2, num4, 0f);
int num9 = num7;
array3[num9++] = num7;
array3[num9++] = num7 + 1;
array3[num9++] = num7 + 2;
array3[num9++] = num7 + 2;
array3[num9++] = num7 + 1;
array3[num9++] = num7 + 3;
array3[num9++] = num7 + 4;
array3[num9++] = num7 + 5;
array3[num9++] = num7 + 6;
array3[num9++] = num7 + 6;
array3[num9++] = num7 + 5;
array3[num9++] = num7 + 7;
array3[num9++] = num7 + 1;
array3[num9++] = num7 + 4;
array3[num9++] = num7 + 8;
array3[num9++] = num7 + 8;
array3[num9++] = num7 + 4;
array3[num9++] = num7 + 9;
array3[num9++] = num7 + 10;
array3[num9++] = num7 + 11;
array3[num9++] = num7 + 3;
array3[num9++] = num7 + 3;
array3[num9++] = num7 + 11;
array3[num9++] = num7 + 6;
return(new Mesh
{
vertices = array2,
triangles = array3,
bounds = new Bounds(Vector3.zero, new Vector3(float.MaxValue, float.MaxValue, float.MaxValue))
});
}
/// <summary>
/// Initialize HMD using OpenVR API calls.
/// </summary>
/// <returns>True on success, false otherwise. Errors logged.</returns>
bool InitHMD()
{
bool retVal = false;
// return if HMD has already been initialized
if (hmdIsInitialized)
{
return(true);
}
// check if HMD is connected on the system
retVal = OpenVR.IsHmdPresent();
if (!retVal)
{
Debug.Log("[KerbalVR] HMD not found on this system.");
return(retVal);
}
// check if SteamVR runtime is installed.
// For this plugin, MAKE SURE IT IS ALREADY RUNNING.
retVal = OpenVR.IsRuntimeInstalled();
if (!retVal)
{
Debug.Log("[KerbalVR] SteamVR runtime not found on this system.");
return(retVal);
}
// initialize HMD
EVRInitError hmdInitErrorCode = EVRInitError.None;
vrSystem = OpenVR.Init(ref hmdInitErrorCode, EVRApplicationType.VRApplication_Scene);
// return if failure
retVal = (hmdInitErrorCode == EVRInitError.None);
if (!retVal)
{
Debug.Log("[KerbalVR] Failed to initialize HMD. Init returned: " + OpenVR.GetStringForHmdError(hmdInitErrorCode));
return(retVal);
}
else
{
Debug.Log("[KerbalVR] OpenVR.Init passed.");
}
// reset "seated position" and capture initial position. this means you should hold the HMD in
// the position you would like to consider "seated", before running this code.
hmdIsInitialized = true;
ResetInitialHmdPosition();
// initialize Compositor
vrCompositor = OpenVR.Compositor;
// initialize render textures (for displaying on HMD)
uint renderTextureWidth = 0;
uint renderTextureHeight = 0;
vrSystem.GetRecommendedRenderTargetSize(ref renderTextureWidth, ref renderTextureHeight);
//renderTextureWidth /= 2;
//renderTextureHeight /= 2;
Debug.Log("[KerbalVR] Render Texture size: " + renderTextureWidth + " x " + renderTextureHeight);
hmdLeftEyeRenderTexture = new RenderTexture((int)renderTextureWidth, (int)renderTextureHeight, 24, RenderTextureFormat.ARGB32);
hmdLeftEyeRenderTexture.antiAliasing = 1;
hmdLeftEyeRenderTexture.Create();
hmdRightEyeRenderTexture = new RenderTexture((int)renderTextureWidth, (int)renderTextureHeight, 24, RenderTextureFormat.ARGB32);
hmdRightEyeRenderTexture.Create();
hmdLeftEyeTexture.handle = hmdLeftEyeRenderTexture.GetNativeTexturePtr();
hmdLeftEyeTexture.eType = EGraphicsAPIConvention.API_OpenGL;
//hmdLeftEyeTexture.eType = EGraphicsAPIConvention.API_DirectX; // this doesn't seem to work
hmdLeftEyeTexture.eColorSpace = EColorSpace.Auto;
hmdRightEyeTexture.handle = hmdRightEyeRenderTexture.GetNativeTexturePtr();
hmdRightEyeTexture.eType = EGraphicsAPIConvention.API_OpenGL;
//hmdRightEyeTexture.eType = EGraphicsAPIConvention.API_DirectX; // this doesn't seem to work
hmdRightEyeTexture.eColorSpace = EColorSpace.Auto;
// Set rendering bounds on texture to render?
// I assume min=0.0 and max=1.0 renders to the full extent of the texture
hmdTextureBounds.uMin = 0.0f;
hmdTextureBounds.uMax = 1.0f;
hmdTextureBounds.vMin = 0.0f;
hmdTextureBounds.vMax = 1.0f;
// create the hidden area mask meshes
HiddenAreaMesh_t vrHiddenAreaMesh = vrSystem.GetHiddenAreaMesh(EVREye.Eye_Left);
hmdHiddenAreaMeshLeft = SteamVR_Utils.CreateHiddenAreaMesh(vrHiddenAreaMesh, hmdTextureBounds);
vrHiddenAreaMesh = vrSystem.GetHiddenAreaMesh(EVREye.Eye_Right);
hmdHiddenAreaMeshRight = SteamVR_Utils.CreateHiddenAreaMesh(vrHiddenAreaMesh, hmdTextureBounds);
// TODO: Need to understand better how to create render targets and incorporate hidden area mask mesh
// search for camera objects to render
foreach (string cameraName in cameraNamesToRender)
{
foreach (Camera camera in Camera.allCameras)
{
if (cameraName.Equals(camera.name))
{
float nearClipPlane = (camera.name.Equals(cameraNames[3])) ? 0.05f : camera.nearClipPlane;
HmdMatrix44_t projLeft = vrSystem.GetProjectionMatrix(EVREye.Eye_Left, nearClipPlane, camera.farClipPlane, EGraphicsAPIConvention.API_OpenGL);
HmdMatrix44_t projRight = vrSystem.GetProjectionMatrix(EVREye.Eye_Right, nearClipPlane, camera.farClipPlane, EGraphicsAPIConvention.API_OpenGL);
//HmdMatrix44_t projLeft = vrSystem.GetProjectionMatrix(EVREye.Eye_Left, nearClipPlane, camera.farClipPlane, EGraphicsAPIConvention.API_DirectX); // this doesn't seem to work
//HmdMatrix44_t projRight = vrSystem.GetProjectionMatrix(EVREye.Eye_Right, nearClipPlane, camera.farClipPlane, EGraphicsAPIConvention.API_DirectX); // this doesn't seem to work
camerasToRender.Add(new CameraProperties(camera, camera.projectionMatrix, MathUtils.Matrix4x4_OpenVr2UnityFormat(ref projLeft), MathUtils.Matrix4x4_OpenVr2UnityFormat(ref projRight)));
break;
}
}
}
foreach (Camera camera in Camera.allCameras)
{
if (cameraNames[5].Equals(camera.name))
{
uiCamera = camera;
}
}
// detect controllers
for (uint idx = 0; idx < OpenVR.k_unMaxTrackedDeviceCount; idx++)
{
if ((ctrlIndexLeft == 0) && (vrSystem.GetTrackedDeviceClass(idx) == ETrackedDeviceClass.Controller))
{
ctrlIndexLeft = idx;
}
else if ((ctrlIndexRight == 0) && (vrSystem.GetTrackedDeviceClass(idx) == ETrackedDeviceClass.Controller))
{
ctrlIndexRight = idx;
}
}
bool ctrlFocusCaptured = vrSystem.CaptureInputFocus();
if (!ctrlFocusCaptured)
{
Debug.LogWarning("[KerbalVR] Controller input focus was not captured");
}
return(retVal);
}
