MeshHelper¶
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class
MeshHelper: System.Object -
public void
CalculateNormals(MeshContent mesh, bool overwriteExistingNormals) Generates vertex normals by accumulation of triangle face normals.
Parameters: - mesh (Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshContent) – The mesh which will recieve the normals.
- overwriteExistingNormals (bool) – Overwrite or skip over geometry with existing normals.
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public void
CalculateNormals(GeometryContent geom, bool overwriteExistingNormals) Generates vertex normals by accumulation of triangle face normals.
Parameters: - geom (Microsoft.Xna.Framework.Content.Pipeline.Graphics.GeometryContent) – The geometry which will recieve the normals.
- overwriteExistingNormals (bool) – Overwrite or skip over geometry with existing normals.
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public void
CalculateTangentFrames(MeshContent mesh, string textureCoordinateChannelName, string tangentChannelName, string binormalChannelName) Generate the tangents and binormals (tangent frames) for each vertex in the mesh.
Parameters: - mesh (Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshContent) – The mesh which will have add tangent and binormal channels added.
- textureCoordinateChannelName (string) – The Vector2 texture coordinate channel used to generate tangent frames.
- tangentChannelName (string) –
- binormalChannelName (string) –
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public void
CalculateTangentFrames(GeometryContent geom, string textureCoordinateChannelName, string tangentChannelName, string binormalChannelName) Parameters: - geom (Microsoft.Xna.Framework.Content.Pipeline.Graphics.GeometryContent) –
- textureCoordinateChannelName (string) –
- tangentChannelName (string) –
- binormalChannelName (string) –
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public void
CalculateTangentFrames(System.Collections.Generic.IList<Vector3> positions, System.Collections.Generic.IList<Int32> indices, System.Collections.Generic.IList<Vector3> normals, System.Collections.Generic.IList<Vector2> textureCoords, ref Microsoft.Xna.Framework.Vector3[] tangents, ref Microsoft.Xna.Framework.Vector3[] bitangents) Parameters: - positions (System.Collections.Generic.IList<Vector3>) –
- indices (System.Collections.Generic.IList<Int32>) –
- normals (System.Collections.Generic.IList<Vector3>) –
- textureCoords (System.Collections.Generic.IList<Vector2>) –
- (ref) tangents (Microsoft.Xna.Framework.Vector3[]) –
- (ref) bitangents (Microsoft.Xna.Framework.Vector3[]) –
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public BoneContent
FindSkeleton(NodeContent node) Search for the root bone of the skeletion.
Parameters: - node (Microsoft.Xna.Framework.Content.Pipeline.Graphics.NodeContent) – The node from which to begin the search for the skeleton.
Returns: The root bone of the skeletion or null if none is found.
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public System.Collections.Generic.IList<BoneContent>
FlattenSkeleton(BoneContent skeleton) Traverses a skeleton depth-first and builds a list of its bones.
Parameters: - skeleton (Microsoft.Xna.Framework.Content.Pipeline.Graphics.BoneContent) –
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public void
MergeDuplicatePositions(MeshContent mesh, float tolerance) Merge any positions in the T:Microsoft.Xna.Framework.Content.Pipeline.Graphics.PositionCollection of the specified mesh that are at a distance less than the specified tolerance from each other.
Parameters: - mesh (Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshContent) – Mesh to be processed.
- tolerance (float) –
- Tolerance value that determines how close
- positions must be to each other to be merged.
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public void
MergeDuplicateVertices(GeometryContent geometry) Merge vertices with the same P:Microsoft.Xna.Framework.Content.Pipeline.Graphics.VertexContent.PositionIndices and T:Microsoft.Xna.Framework.Content.Pipeline.Graphics.VertexChannel data within the specified T:Microsoft.Xna.Framework.Content.Pipeline.Graphics.GeometryContent.
Parameters: - geometry (Microsoft.Xna.Framework.Content.Pipeline.Graphics.GeometryContent) – Geometry to be processed.
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public void
MergeDuplicateVertices(MeshContent mesh) Merge vertices with the same P:Microsoft.Xna.Framework.Content.Pipeline.Graphics.VertexContent.PositionIndices and T:Microsoft.Xna.Framework.Content.Pipeline.Graphics.VertexChannel data within the P:Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshContent.Geometry of this mesh. If you want to merge positions too, call M:Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshHelper.MergeDuplicatePositions(Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshContent,System.Single) on your mesh before this function.
Parameters: - mesh (Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshContent) – Mesh to be processed
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public void
OptimizeForCache(MeshContent mesh) Parameters: - mesh (Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshContent) –
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public void
SwapWindingOrder(MeshContent mesh) Reverses the triangle winding order of the mesh.
Parameters: - mesh (Microsoft.Xna.Framework.Content.Pipeline.Graphics.MeshContent) – The mesh which will be modified.
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public void
TransformScene(NodeContent scene, Matrix transform) Transforms the contents of a node and its descendants.
Parameters: - scene (Microsoft.Xna.Framework.Content.Pipeline.Graphics.NodeContent) – The root node of the scene to transform.
- transform (Microsoft.Xna.Framework.Matrix) – The transform matrix to apply to the scene.
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bool
IsLeftHanded(ref Matrix xform) Parameters: - (ref) xform (Microsoft.Xna.Framework.Matrix) –
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public void