private ModelMesh CreateModelMesh(
ContentManager contentManager,
W3dMesh w3dMesh,
ModelBone parentBone,
int numBones)
{
W3dShaderMaterial w3dShaderMaterial;
Effect effect = null;
if (w3dMesh.MaterialPasses.Length == 1 && w3dMesh.MaterialPasses[0].ShaderMaterialId != null)
{
var shaderMaterialID = w3dMesh.MaterialPasses[0].ShaderMaterialId.Value;
w3dShaderMaterial = w3dMesh.ShaderMaterials.Materials[(int)shaderMaterialID];
var effectName = w3dShaderMaterial.Header.TypeName.Replace(".fx", string.Empty);
effect = contentManager.EffectLibrary.GetEffect(
effectName,
MeshVertex.VertexDescriptors);
}
else
{
w3dShaderMaterial = null;
effect = contentManager.EffectLibrary.FixedFunction;
}
var vertexMaterials = CreateMaterials(w3dMesh);
var shadingConfigurations = new FixedFunction.ShadingConfiguration[w3dMesh.Shaders.Length];
for (var i = 0; i < shadingConfigurations.Length; i++)
{
shadingConfigurations[i] = CreateShadingConfiguration(w3dMesh.Shaders[i]);
}
var materialPasses = new ModelMeshMaterialPass[w3dMesh.MaterialPasses.Length];
if (w3dShaderMaterial != null)
{
materialPasses[0] = CreateModelMeshMaterialPassShaderMaterial(
contentManager,
w3dMesh,
w3dMesh.MaterialPasses[0],
w3dShaderMaterial,
effect);
}
else
{
for (var i = 0; i < materialPasses.Length; i++)
{
materialPasses[i] = CreateModelMeshMaterialPassFixedFunction(
contentManager,
w3dMesh,
w3dMesh.MaterialPasses[i],
vertexMaterials,
shadingConfigurations);
}
}
var boundingBox = new BoundingBox(
w3dMesh.Header.Min,
w3dMesh.Header.Max);
var isSkinned = (w3dMesh.Header.Attributes & W3dMeshFlags.GeometryTypeMask) == W3dMeshFlags.GeometryTypeSkin;
var cameraOriented = (w3dMesh.Header.Attributes & W3dMeshFlags.GeometryTypeMask) == W3dMeshFlags.GeometryTypeCameraOriented;
return(new ModelMesh(
contentManager.GraphicsDevice,
w3dMesh.Header.MeshName,
CreateVertices(w3dMesh, isSkinned),
CreateIndices(w3dMesh),
effect,
materialPasses,
isSkinned,
parentBone,
(uint)numBones,
boundingBox,
w3dMesh.Header.Attributes.HasFlag(W3dMeshFlags.Hidden),
cameraOriented));
}
private ModelMesh CreateModelMesh(
ContentManager contentManager,
W3dMesh w3dMesh)
{
W3dShaderMaterial w3dShaderMaterial;
Effect effect = null;
if (w3dMesh.MaterialPasses.Count == 1 && w3dMesh.MaterialPasses[0].ShaderMaterialIds != null)
{
if (w3dMesh.MaterialPasses[0].ShaderMaterialIds.Items.Length > 1)
{
throw new NotSupportedException();
}
var shaderMaterialID = w3dMesh.MaterialPasses[0].ShaderMaterialIds.Items[0];
w3dShaderMaterial = w3dMesh.ShaderMaterials.Items[(int)shaderMaterialID];
var effectName = w3dShaderMaterial.Header.TypeName.Replace(".fx", string.Empty);
effect = contentManager.EffectLibrary.GetEffect(
effectName,
MeshVertex.VertexDescriptors);
}
else
{
w3dShaderMaterial = null;
effect = contentManager.EffectLibrary.FixedFunction;
}
var vertexMaterials = CreateMaterials(w3dMesh);
var shadingConfigurations = new FixedFunction.ShadingConfiguration[w3dMesh.Shaders.Items.Count];
for (var i = 0; i < shadingConfigurations.Length; i++)
{
shadingConfigurations[i] = CreateShadingConfiguration(w3dMesh.Shaders.Items[i]);
}
var materialPasses = new ModelMeshMaterialPass[w3dMesh.MaterialPasses.Count];
if (w3dShaderMaterial != null)
{
materialPasses[0] = CreateModelMeshMaterialPassShaderMaterial(
contentManager,
w3dMesh,
w3dMesh.MaterialPasses[0],
w3dShaderMaterial,
effect);
}
else
{
for (var i = 0; i < materialPasses.Length; i++)
{
materialPasses[i] = CreateModelMeshMaterialPassFixedFunction(
contentManager,
w3dMesh,
w3dMesh.MaterialPasses[i],
vertexMaterials,
shadingConfigurations);
}
}
var boundingBox = new BoundingBox(
w3dMesh.Header.Min,
w3dMesh.Header.Max);
var cameraOriented = (w3dMesh.Header.Attributes & W3dMeshFlags.GeometryTypeMask) == W3dMeshFlags.GeometryTypeCameraOriented;
var hasHouseColor = w3dMesh.Header.MeshName.StartsWith("HOUSECOLOR");
return(new ModelMesh(
contentManager.GraphicsDevice,
w3dMesh.Header.MeshName,
MemoryMarshal.AsBytes(new ReadOnlySpan <MeshVertex.Basic>(CreateVertices(w3dMesh, w3dMesh.IsSkinned))),
CreateIndices(w3dMesh, w3dShaderMaterial != null),
materialPasses,
w3dMesh.IsSkinned,
boundingBox,
w3dMesh.Header.Attributes.HasFlag(W3dMeshFlags.Hidden),
cameraOriented,
hasHouseColor));
}
