private static void ComputeMeshPoints(int width, int height, bool distortVertices,
out Vector3[] vertices, out Vector2[] tex)
{
float[] lensFrustum = new float[4];
float[] noLensFrustum = new float[4];
Rect viewport;
NvrProfile profile = NvrViewer.Instance.Profile;
profile.GetLeftEyeVisibleTanAngles(lensFrustum);
profile.GetLeftEyeNoLensTanAngles(noLensFrustum);
viewport = profile.GetLeftEyeVisibleScreenRect(noLensFrustum);
vertices = new Vector3[2 * width * height];
tex = new Vector2[2 * width * height];
for (int e = 0, vidx = 0; e < 2; e++)
{
for (int j = 0; j < height; j++)
{
for (int i = 0; i < width; i++, vidx++)
{
float u = (float)i / (width - 1);
float v = (float)j / (height - 1);
float s, t; // The texture coordinates in StereoScreen to read from.
if (distortVertices)
{
// Grid points regularly spaced in StreoScreen, and barrel distorted in the mesh.
s = u;
t = v;
float x = Mathf.Lerp(lensFrustum[0], lensFrustum[2], u);
float y = Mathf.Lerp(lensFrustum[3], lensFrustum[1], v);
float d = Mathf.Sqrt(x * x + y * y);
float r = profile.viewer.distortion.distortInv(d);
float p = x * r / d;
float q = y * r / d;
u = (p - noLensFrustum[0]) / (noLensFrustum[2] - noLensFrustum[0]);
v = (q - noLensFrustum[3]) / (noLensFrustum[1] - noLensFrustum[3]);
}
else
{
// Grid points regularly spaced in the mesh, and pincushion distorted in
// StereoScreen.
float p = Mathf.Lerp(noLensFrustum[0], noLensFrustum[2], u);
float q = Mathf.Lerp(noLensFrustum[3], noLensFrustum[1], v);
float r = Mathf.Sqrt(p * p + q * q);
float d = profile.viewer.distortion.distort(r);
float x = p * d / r;
float y = q * d / r;
s = Mathf.Clamp01((x - lensFrustum[0]) / (lensFrustum[2] - lensFrustum[0]));
t = Mathf.Clamp01((y - lensFrustum[3]) / (lensFrustum[1] - lensFrustum[3]));
}
// Convert u,v to mesh screen coordinates.
float aspect = profile.screen.width / profile.screen.height;
u = (viewport.x + u * viewport.width - 0.5f) * aspect;
v = viewport.y + v * viewport.height - 0.5f;
vertices[vidx] = new Vector3(u, v, 1);
// Adjust s to account for left/right split in StereoScreen.
s = (s + e) / 2;
tex[vidx] = new Vector2(s, t);
}
}
float w = lensFrustum[2] - lensFrustum[0];
lensFrustum[0] = -(w + lensFrustum[0]);
lensFrustum[2] = w - lensFrustum[2];
w = noLensFrustum[2] - noLensFrustum[0];
noLensFrustum[0] = -(w + noLensFrustum[0]);
noLensFrustum[2] = w - noLensFrustum[2];
viewport.x = 1 - (viewport.x + viewport.width);
}
}
private void UpdateProfile()
{
if (NvrViewer.USE_DTR)
{
_NVR_GetNVRConfig(profileData);
}
if (profileData[13] > 0)
{
NvrGlobal.fovNear = profileData[13];
}
if (profileData[14] > 0)
{
NvrGlobal.fovFar = profileData[14];
}
if (NvrViewer.USE_DTR && !NvrGlobal.supportDtr && NvrGlobal.dftProfileParams[0] != 0)
{
// DFT模式加载cardboard参数
// fov
profileData[0] = NvrGlobal.dftProfileParams[3]; //45;
profileData[1] = NvrGlobal.dftProfileParams[4]; //45;
profileData[2] = NvrGlobal.dftProfileParams[5]; //51.5f;
profileData[3] = NvrGlobal.dftProfileParams[6]; //51.5f;
// screen size
profileData[4] = NvrGlobal.dftProfileParams[12]; //0.110f;
profileData[5] = NvrGlobal.dftProfileParams[13]; //0.062f;
// ipd
profileData[7] = NvrGlobal.dftProfileParams[0]; //0.063f;
// screen to lens
profileData[9] = NvrGlobal.dftProfileParams[2]; //0.035f;
// k1 k2
profileData[11] = NvrGlobal.dftProfileParams[7]; //0.252f;
profileData[12] = NvrGlobal.dftProfileParams[8]; //0.019f;
}
NvrProfile.Viewer device = new NvrProfile.Viewer();
NvrProfile.Screen screen = new NvrProfile.Screen();
// left top right bottom
device.maxFOV.outer = profileData[0];
device.maxFOV.upper = profileData[2];
device.maxFOV.inner = profileData[1];
device.maxFOV.lower = profileData[3];
screen.width = profileData[4];
screen.height = profileData[5];
screen.border = profileData[6];
device.lenses.separation = profileData[7];
device.lenses.offset = profileData[8];
device.lenses.screenDistance = profileData[9];
device.lenses.alignment = (int)profileData[10];
device.distortion.Coef = new[] { profileData[11], profileData[12] };
Profile.screen = screen;
Profile.viewer = device;
float[] rect = new float[4];
Profile.GetLeftEyeNoLensTanAngles(rect);
float maxRadius = NvrProfile.GetMaxRadius(rect);
Profile.viewer.inverse = NvrProfile.ApproximateInverse(
Profile.viewer.distortion, maxRadius);
}
public override void UpdateScreenData()
{
Profile = NvrProfile.GetKnownProfile(NvrViewer.Instance.ScreenSize, NvrViewer.Instance.ViewerType);
ComputeEyesFromProfile(1, 2000);
profileChanged = true;
}
