public static Rect BuildTransformMeshUV2AtlasRect(
bool considerMeshUVs,
Rect _atlasRect,
Rect _obUVRect,
Rect _sourceMaterialTiling,
Rect _encapsulatingRect)
{
DRect atlasRect = new DRect(_atlasRect);
DRect obUVRect;
if (considerMeshUVs)
{
obUVRect = new DRect(_obUVRect); //this is the uvRect in src mesh
}
else
{
obUVRect = new DRect(0.0, 0.0, 1.0, 1.0);
}
DRect sourceMaterialTiling = new DRect(_sourceMaterialTiling);
//封装材质， UV 参数
DRect encapsulatingRectMatAndUVTiling = new DRect(_encapsulatingRect);
DRect encapsulatingRectMatAndUVTilingInverse = UVRectUtility.InverseTransform(ref encapsulatingRectMatAndUVTiling);
DRect toNormalizedUVs = UVRectUtility.InverseTransform(ref obUVRect);
DRect meshFullSamplingRect = UVRectUtility.CombineTransforms(ref obUVRect, ref sourceMaterialTiling);
DRect shiftToFitInEncapsulating = UVRectUtility.GetShiftTransformToFitBinA(ref encapsulatingRectMatAndUVTiling, ref meshFullSamplingRect);
meshFullSamplingRect = UVRectUtility.CombineTransforms(ref meshFullSamplingRect, ref shiftToFitInEncapsulating);
//transform between full sample rect and encapsulating rect
DRect relativeTrans = UVRectUtility.CombineTransforms(ref meshFullSamplingRect, ref encapsulatingRectMatAndUVTilingInverse);
DRect trans = UVRectUtility.CombineTransforms(ref toNormalizedUVs, ref relativeTrans);
trans = UVRectUtility.CombineTransforms(ref trans, ref atlasRect);
Rect rr = trans.GetRect();
return(rr);
}
public void DrawRectsToMergeGizmos(Color encC, Color innerC)
{
DRect r = ts[0].GetEncapsulatingSamplingRect();
r.Expand(.05f);
Gizmos.color = encC;
Gizmos.DrawWireCube(r.center.GetVector2(), r.size);
for (int i = 0; i < matsAndGOs.mats.Count; i++)
{
DRect rr = matsAndGOs.mats[i].samplingRectMatAndUVTiling;
DRect trans = UVRectUtility.GetShiftTransformToFitBinA(ref r, ref rr);
Vector2 xy = UVRectUtility.TransformPoint(ref trans, rr.min);
rr.x = xy.x;
rr.y = xy.y;
//Debug.Log("r " + r + " rr" + rr);
Gizmos.color = innerC;
Gizmos.DrawWireCube(rr.center.GetVector2(), rr.size);
}
}
