四.获取SolidWorks中的材质信息
SolidWorks插件-将SolidWorks文件转换为gltf格式
- 一.SolidWorks文件转换为glTF格式
- 二.搭建一个Taskpane的SolidWorks插件
- 三.获取SolidWorks文件中的网格信息
- 四.获取SolidWorks中的材质信息
- 五.转换为glTF格式
- 六.装配体和多实体格式的转换
- 去Github查看代码或下载插件安装包
4.1 关于材质
其实在上一节的代码里已经有获取SolidWorks的材质信息。在SolidWorks中的零件文档有材料信息，实体(Body)有材质信息，面有材质信息。此处的材质信息包含颜色，光泽度等等。
处理这些材质信息后才能让转换出来的文档和SolidWorks中的文档看起来相似。
4.2 材质信息
- 在SolidWorks中，IPartDoc,IFace2,IBody都具有MaterialPropertyValue的属性。这个属性会返回一个数组。
[ R, G, B, Ambient, Diffuse, Specular, Shininess, Transparency, Emission ]
- 在这里我们使用一个SharpglTF中MaterialBulider对象来构造一个的材质对象
public MaterialBuilder MaterialBuilder
{
get
{
if (FaceMaterialValue != null)
{
_MaterialBuilder = new MaterialBuilder()
.WithDoubleSide(true)
.WithChannelParam(KnownChannels.Normal, new System.Numerics.Vector4(
Convert.ToSingle(FaceMaterialValue[0]),
Convert.ToSingle(FaceMaterialValue[1]),
Convert.ToSingle(FaceMaterialValue[2]),
1));
}
return _MaterialBuilder;
}
}
4.3 存储零件，实体，面的材质和几何信息
namespace DuSwToglTF.Model
{
using VERTEX = SharpGLTF.Geometry.VertexTypes.VertexPosition;
public class SWglTFModel
{
/// <summary>
/// SolidWorks材料属性
/// </summary>
public double[] PartMaterialValue;
/// <summary>
/// Solidworks变换矩阵
/// </summary>
public MathTransform SWMathTran;
/// <summary>
/// 默认材料属性
/// </summary>
private MaterialBuilder InitMaterial = new MaterialBuilder()
.WithDoubleSide(true)
.WithMetallicRoughnessShader()
.WithChannelParam(KnownChannels.MetallicRoughness, new Vector4(1, 0, 0, 1));
/// <summary>
/// 初始原点矩阵
/// </summary>
public Matrix4x4 InitPartPos = new Matrix4x4(
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0,1
);
/// <summary>
/// 零件矩阵
/// </summary>
public Matrix4x4 PartTransform
{
get {
if (SWMathTran == null)
{
return InitPartPos;
}
else
{
double[] Tran = SWMathTran.ArrayData;
return new Matrix4x4(
Convert.ToSingle(Tran[0]), Convert.ToSingle(Tran[1]), Convert.ToSingle(Tran[2]), 0,
Convert.ToSingle(Tran[3]), Convert.ToSingle(Tran[4]), Convert.ToSingle(Tran[5]), 0,
Convert.ToSingle(Tran[6]), Convert.ToSingle(Tran[7]), Convert.ToSingle(Tran[8]), 0,
Convert.ToSingle(Tran[9]), Convert.ToSingle(Tran[10]), Convert.ToSingle(Tran[11]), 0
);
}
}
}
//[ R, G, B, Ambient, Diffuse, Specular, Shininess, Transparency, Emission ]
/// <summary>
/// 材料属性
/// </summary>
public MaterialBuilder MaterialBuilder
{
get
{
if (PartMaterialValue != null)
{
//if (PartMaterialValue[0] == 1 && PartMaterialValue[1] == 1 && PartMaterialValue[2] == 1)
//{
// return InitMaterial;
//}
//else
//{
_MaterialBuilder = new MaterialBuilder()
.WithDoubleSide(true)
.WithChannelParam(KnownChannels.BaseColor, new System.Numerics.Vector4(
Convert.ToSingle(PartMaterialValue[0]),
Convert.ToSingle(PartMaterialValue[1]),
Convert.ToSingle(PartMaterialValue[2]),
1));
// }
}
if (_MaterialBuilder == null)
{
_MaterialBuilder = InitMaterial;
}
return _MaterialBuilder;
}
}
/// <summary>
/// 所有的实体
/// </summary>
public List<BodyglTFModel> BodyList = new List<BodyglTFModel>();
#region 私有字段
private Matrix4x4 _PartTransform;
private MaterialBuilder _MaterialBuilder = null;
#endregion
}
/// <summary>
/// 实体模型属性
/// </summary>
public class BodyglTFModel
{
/// <summary>
/// 初始原点矩阵
/// </summary>
public Matrix4x4 InitPartPos = new Matrix4x4(
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1
);
public MathTransform SWMathTran;
/// <summary>
/// 零件矩阵
/// </summary>
public Matrix4x4 BodyTransform
{
get
{
if (SWMathTran == null)
{
return InitPartPos;
}
else
{
double[] Tran = SWMathTran.ArrayData;
return new Matrix4x4(
Convert.ToSingle(Tran[0]), Convert.ToSingle(Tran[1]), Convert.ToSingle(Tran[2]), 0,
Convert.ToSingle(Tran[3]), Convert.ToSingle(Tran[4]), Convert.ToSingle(Tran[5]), 0,
Convert.ToSingle(Tran[6]), Convert.ToSingle(Tran[7]), Convert.ToSingle(Tran[8]), 0,
Convert.ToSingle(Tran[9]), Convert.ToSingle(Tran[10]), Convert.ToSingle(Tran[11]), 0
);
}
}
}
/// <summary>
/// 实体材料属性
/// </summary>
public double[] BodyMaterialValue;
//[ R, G, B, Ambient, Diffuse, Specular, Shininess, Transparency, Emission ]
public MaterialBuilder MaterialBuilder
{
get
{
if (BodyMaterialValue != null)
{
_MaterialBuilder = new MaterialBuilder()
.WithDoubleSide(true)
.WithChannelParam(KnownChannels.Normal, new System.Numerics.Vector4(
Convert.ToSingle(BodyMaterialValue[0]),
Convert.ToSingle(BodyMaterialValue[1]),
Convert.ToSingle(BodyMaterialValue[2]),
1));
}
return _MaterialBuilder;
}
}
/// <summary>
/// 实体中所有的面
/// </summary>
public List<FaceglTFModel> FaceList = new List<FaceglTFModel>();
private MaterialBuilder _MaterialBuilder = null;
}
public class FaceglTFModel
{
/// <summary>
/// 面材质属性
/// </summary>
public double[] FaceMaterialValue;
private MaterialBuilder _MaterialBuilder = null;
//[ R, G, B, Ambient, Diffuse, Specular, Shininess, Transparency, Emission ]
public MaterialBuilder MaterialBuilder
{
get
{
if (FaceMaterialValue != null)
{
_MaterialBuilder = new MaterialBuilder()
.WithDoubleSide(true)
.WithChannelParam(KnownChannels.Normal, new System.Numerics.Vector4(
Convert.ToSingle(FaceMaterialValue[0]),
Convert.ToSingle(FaceMaterialValue[1]),
Convert.ToSingle(FaceMaterialValue[2]),
1));
}
return _MaterialBuilder;
}
}
/// <summary>
/// 面中所有的三角面
/// </summary>
public List<FaceVertexModel> FaceTri = new List<FaceVertexModel>();
}
/// <summary>
/// 一个三角形面的三个顶点
/// </summary>
public class FaceVertexModel
{
public VERTEX a;
public VERTEX b;
public VERTEX c;
}
}
- 我们用这样一个数据结构来描述一个SolidWorks零件或者转配体。在转换中将其转换为SharpglTF的一个sence对象，在输出为gltf格式。
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