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normalize model to center (#95)

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* normalize model to center

* force same scale on XYZ
This commit is contained in:
Kanglai Qian 2017-09-27 01:57:47 +08:00 committed by Perfare
parent cc74130ad4
commit 01f1d7c14e
1 changed files with 31 additions and 3 deletions
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34
Unity Studio/UnityStudioForm.cs
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@ -970,7 +970,6 @@ namespace Unity_Studio
glControl1.Visible = true;
viewMatrixData = new Matrix4[] {
Matrix4.Identity
* Matrix4.CreateTranslation( 0.0f, -1.0f, 0.0f )
* Matrix4.CreateRotationY(-90.0f)};
var m_Mesh = new Mesh(asset, true);
if (m_Mesh.m_VertexCount > 0)
@ -982,12 +981,41 @@ namespace Unity_Studio
count = 4;
}
vertexData = new Vector3[m_Mesh.m_VertexCount];
// Calculate Bounding
float[] min = new float[3];
float[] max = new float[3];
for (int i = 0; i < 3; i++)
{
min[i] = m_Mesh.m_Vertices[i];
max[i] = m_Mesh.m_Vertices[i];
}
for (int v = 1; v < m_Mesh.m_VertexCount; v++)
{
for (int i = 0; i < 3; i++)
{
min[i] = Math.Min(min[i], m_Mesh.m_Vertices[v * count + i]);
max[i] = Math.Max(max[i], m_Mesh.m_Vertices[v * count + i]);
}
}
// Calculate offset & scale to remapping vertex
Vector3 scale = Vector3.One, offset = Vector3.Zero;
for (int i = 0; i < 3; i++)
{
if(min[i] + 1e-5 < max[i])
{
scale[i] = 1.5f / (max[i] - min[i]);
}
offset[i] = (max[i] + min[i]) / 2;
}
float minScale = Math.Min(scale.X, Math.Min(scale.Y, scale.Z));
scale = new Vector3(minScale);
for (int v = 0; v < m_Mesh.m_VertexCount; v++)
{
vertexData[v] = new Vector3(
vertexData[v] = (new Vector3(
m_Mesh.m_Vertices[v * count],
m_Mesh.m_Vertices[v * count + 1],
m_Mesh.m_Vertices[v * count + 2]);
m_Mesh.m_Vertices[v * count + 2]) - offset) * scale;
}
#endregion
#region Indicies