public void SetSurfaceUV0(int descriptionIndex, UVMatrix uv0)
{
if (descriptionIndex < 0 || descriptionIndex >= surfaces.Length)
{
return;
}
surfaces[descriptionIndex].surfaceDescription.UV0 = uv0;
}
public void Decompose(out Vector2 translation, out Vector3 normal, out float rotation, out Vector2 scale)
{
normal = planeNormal;
var orientation = Quaternion.LookRotation(normal);
var inv_orientation = Quaternion.Inverse(orientation);
var u = inv_orientation * (Vector3)U;
var v = inv_orientation * (Vector3)V;
rotation = -Vector3.SignedAngle(Vector3.right, u, Vector3.forward);
const double min_rotate = 1.0 / 10000.0;
rotation = (float)(Math.Round(rotation / min_rotate) * min_rotate);
scale = new Vector2(u.magnitude, v.magnitude);
const double min_scale = 1.0 / 10000.0;
scale.x = (float)(Math.Round(scale.x / min_scale) * min_scale);
scale.y = (float)(Math.Round(scale.y / min_scale) * min_scale);
var rotation2d = Quaternion.AngleAxis(-rotation, Vector3.forward);
translation = new Vector2(U.w, V.w);
const double min_translation = 1.0 / 32768.0;
translation.x = (float)(Math.Round(translation.x / min_translation) * min_translation);
translation.y = (float)(Math.Round(translation.y / min_translation) * min_translation);
// TODO: figure out a better way to find if we scale negatively
var newUvMatrix = UVMatrix.TRS(translation, normal, rotation, scale);
if (Vector3.Dot(V, newUvMatrix.V) < 0)
{
scale.y = -scale.y;
}
if (Vector3.Dot(U, newUvMatrix.U) < 0)
{
scale.x = -scale.x;
}
}
public void Decompose(out Vector2 translation, out float rotation, out Vector2 scale)
{
translation = new Vector2(U.w, V.w);
const double min_translation = 1.0 / 32768.0;
translation.x = (float)(math.round(translation.x / min_translation) * min_translation);
translation.y = (float)(math.round(translation.y / min_translation) * min_translation);
var matrix = ToFloat4x4();
var q = new quaternion(math.transpose((float3x3)matrix));
var q_i = math.inverse(q);
var q_u = ((UnityEngine.Quaternion)q_i);
rotation = q_u.eulerAngles[2];
const double min_rotate = 1.0 / 10000.0;
rotation = (float)(Math.Round(rotation / min_rotate) * min_rotate);
var uScale = math.length(math.mul(q, matrix.c0.xyz));
var vScale = math.length(math.mul(q, matrix.c1.xyz));
scale = new float2(uScale, vScale);
scale.x = (float)(math.round(scale.x / kScaleStep) * kScaleStep);
scale.y = (float)(math.round(scale.y / kScaleStep) * kScaleStep);
scale.x = (float)math.max(math.abs(scale.x), kMinScale) * Math.Sign(scale.x);
scale.y = (float)math.max(math.abs(scale.y), kMinScale) * Math.Sign(scale.y);
var newUvMatrix = UVMatrix.TRS(translation, rotation, scale);
if (math.dot((Vector3)V, (Vector3)newUvMatrix.V) < 0)
{
scale.y = -scale.y;
}
if (math.dot((Vector3)U, (Vector3)newUvMatrix.U) < 0)
{
scale.x = -scale.x;
}
}
public void Decompose(out Vector2 translation, out float rotation, out Vector2 scale)
{
var normal = new float3(0, 0, 1);
var u = (Vector3)U;
var v = (Vector3)V;
if (Math.Abs(u.x) < kSnapEpsilon)
{
u.x = 0;
}
if (Math.Abs(u.y) < kSnapEpsilon)
{
u.y = 0;
}
if (Math.Abs(u.z) < kSnapEpsilon)
{
u.z = 0;
}
if (Math.Abs(v.x) < kSnapEpsilon)
{
v.x = 0;
}
if (Math.Abs(v.y) < kSnapEpsilon)
{
v.y = 0;
}
if (Math.Abs(v.z) < kSnapEpsilon)
{
v.z = 0;
}
//var inverted = Vector3.Cross(U, V).z < 0.0f;
var rotationU = -Vector3.SignedAngle(Vector3.right, u, normal);
var rotationV = -Vector3.SignedAngle(Vector3.up, v, normal);
rotation = Math.Abs(rotationU) < Math.Abs(rotationV) ? rotationU : rotationV;
const double min_rotate = 1.0 / 10000.0;
rotation = (float)(Math.Round(rotation / min_rotate) * min_rotate);
var rotation2d = Quaternion.AngleAxis(rotation, normal);
var invRotate = Quaternion.Inverse(rotation2d);
u = (invRotate * U).normalized;
v = (invRotate * V).normalized;
var udir = Vector3.right;
var vdir = Vector3.up;
var uScale = Vector3.Dot(udir, u);
var vScale = Vector3.Dot(vdir, v);
scale = new Vector2(uScale, vScale);
scale.x = (float)(Math.Round(scale.x / kScaleStep) * kScaleStep);
scale.y = (float)(Math.Round(scale.y / kScaleStep) * kScaleStep);
scale.x = (float)Math.Max(Math.Abs(scale.x), kMinScale) * Math.Sign(scale.x);
scale.y = (float)Math.Max(Math.Abs(scale.y), kMinScale) * Math.Sign(scale.y);
//var rotation2d = Quaternion.AngleAxis(-rotation, Vector3.forward);
translation = new Vector2(U.w, V.w);
const double min_translation = 1.0 / 32768.0;
translation.x = (float)(Math.Round(translation.x / min_translation) * min_translation);
translation.y = (float)(Math.Round(translation.y / min_translation) * min_translation);
// TODO: figure out a better way to find if we scale negatively
var newUvMatrix = UVMatrix.TRS(translation, rotation, scale);
if (Vector3.Dot((Vector3)V, (Vector3)newUvMatrix.V) < 0)
{
scale.y = -scale.y;
}
if (Vector3.Dot((Vector3)U, (Vector3)newUvMatrix.U) < 0)
{
scale.x = -scale.x;
}
}