private GameObject CreateMeshPrimitive(MeshPrimitive primitive)
{
var primitiveObj = new GameObject("Primitive");
var meshFilter = primitiveObj.AddComponent <MeshFilter>();
var attributes = _attributesCache[primitive];
var mesh = new UnityEngine.Mesh
{
vertices = attributes.Vertices,
normals = attributes.Normals,
uv = attributes.Uv,
uv2 = attributes.Uv2,
uv3 = attributes.Uv3,
uv4 = attributes.Uv4,
colors = attributes.Colors,
triangles = attributes.Triangles,
tangents = attributes.Tangents
};
meshFilter.mesh = mesh;
var meshRenderer = primitiveObj.AddComponent <MeshRenderer>();
UnityEngine.Material material = null;
if (primitive.Material != null)
{
var materialCacheKey = new MaterialCacheKey
{
Material = primitive.Material.Value,
UseVertexColors = attributes.Colors != null
};
try
{
material = FindOrCreateMaterial(materialCacheKey);
}
catch (Exception e)
{
Debug.LogException(e);
Debug.LogWarningFormat("Failed to create material from {0}, using default", materialCacheKey.Material.Name);
}
}
if (material == null)
{
var materialCacheKey = new MaterialCacheKey
{
Material = new Material(),
UseVertexColors = attributes.Colors != null
};
material = FindOrCreateMaterial(materialCacheKey);
}
meshRenderer.material = material;
return(primitiveObj);
}
public bool Equals(ref MaterialCacheKey rhs)
{
return((Material == rhs.Material) &&
(RasterizerState == rhs.RasterizerState) &&
(DepthStencilState == rhs.DepthStencilState) &&
(BlendState == rhs.BlendState));
}
private UnityEngine.Material FindOrCreateMaterial(MaterialCacheKey materialKey)
{
UnityEngine.Material material;
if (_materialCache.TryGetValue(materialKey, out material))
{
return(material);
}
material = CreateMaterial(materialKey.Material, materialKey.UseVertexColors);
_materialCache.Add(materialKey, material);
return(material);
}
private GameObject CreateMeshPrimitive(GLTFMeshPrimitive primitive)
{
var primitiveObj = new GameObject("Primitive");
var meshFilter = primitiveObj.AddComponent <MeshFilter>();
var attributes = _attributesCache[primitive];
var mesh = new Mesh
{
vertices = attributes.Vertices,
normals = attributes.Normals,
uv = attributes.Uv,
uv2 = attributes.Uv2,
uv3 = attributes.Uv3,
uv4 = attributes.Uv4,
colors = attributes.Colors,
triangles = attributes.Triangles,
tangents = attributes.Tangents
};
meshFilter.mesh = mesh;
var meshRenderer = primitiveObj.AddComponent <MeshRenderer>();
if (primitive.Material != null)
{
var materialCacheKey = new MaterialCacheKey {
Material = primitive.Material.Value,
UseVertexColors = attributes.Colors != null
};
meshRenderer.material = FindOrCreateMaterial(materialCacheKey);
}
else
{
var materialCacheKey = new MaterialCacheKey {
Material = new GLTFMaterial(),
UseVertexColors = attributes.Colors != null
};
meshRenderer.material = FindOrCreateMaterial(materialCacheKey);
}
return(primitiveObj);
}
/// <summary>
/// Returns a new version of a given material with rasterizer, depth/stencil, and blend state(s) optionally applied to it. This new version is cached.
/// If no states are provided, the base material is returned.
/// </summary>
/// <param name="baseMaterial">The base material.</param>
/// <param name="rasterizerState">The new rasterizer state, or null.</param>
/// <param name="depthStencilState">The new depth/stencil state, or null.</param>
/// <param name="blendState">The new blend state, or null.</param>
/// <returns>The material with state(s) applied.</returns>
public Material Get(Material baseMaterial, RasterizerState rasterizerState = null, DepthStencilState depthStencilState = null, BlendState blendState = null)
{
if (
(rasterizerState == null) &&
(depthStencilState == null) &&
(blendState == null)
)
{
return(baseMaterial);
}
var key = new MaterialCacheKey(baseMaterial, rasterizerState, depthStencilState, blendState);
Material result;
if (!MaterialCache.TryGetValue(key, out result))
{
result = baseMaterial.SetStates(rasterizerState, depthStencilState, blendState);
MaterialCache.Add(key, result);
}
return(result);
}
