private static IEnumerable <(SubAssetKey, TextureDescriptor)> EnumerateAllTextures(GltfData data, glTF_VRM_extensions vrm)
{
// Materials
for (var materialIdx = 0; materialIdx < data.GLTF.materials.Count; ++materialIdx)
{
var material = data.GLTF.materials[materialIdx];
var vrmMaterial = vrm.materialProperties[materialIdx];
if (vrmMaterial.shader == VRM.glTF_VRM_Material.VRM_USE_GLTFSHADER)
{
// Unlit or PBR
foreach (var kv in GltfPbrTextureImporter.EnumerateAllTextures(data, materialIdx))
{
yield return(kv);
}
}
else
{
// MToon など任意の shader
foreach (var kv in VRMMToonTextureImporter.EnumerateAllTextures(data, vrm, materialIdx))
{
yield return(kv);
}
}
}
// Thumbnail
if (TryGetThumbnailTexture(data, vrm, out var thumbnail))
{
yield return(thumbnail);
}
}
public static bool TryCreateParam(GltfData data, glTF_VRM_extensions vrm, int materialIdx,
out MaterialDescriptor matDesc)
{
if (vrm?.materialProperties == null || vrm.materialProperties.Count == 0)
{
matDesc = default;
return(false);
}
if (materialIdx < 0 || materialIdx >= vrm.materialProperties.Count)
{
matDesc = default;
return(false);
}
var vrmMaterial = vrm.materialProperties[materialIdx];
if (vrmMaterial.shader == glTF_VRM_Material.VRM_USE_GLTFSHADER)
{
// fallback to gltf
matDesc = default;
return(false);
}
//
// restore VRM material
//
// use material.name, because material name may renamed in GltfParser.
var name = data.GLTF.materials[materialIdx].name;
var textureSlots = new Dictionary <string, TextureDescriptor>();
var floatValues = new Dictionary <string, float>();
var colors = new Dictionary <string, Color>();
var vectors = new Dictionary <string, Vector4>();
var actions = new List <Action <Material> >();
matDesc = new MaterialDescriptor(
name,
vrmMaterial.shader,
vrmMaterial.renderQueue,
textureSlots,
floatValues,
colors,
vectors,
actions);
foreach (var kv in vrmMaterial.floatProperties)
{
floatValues.Add(kv.Key, kv.Value);
}
foreach (var kv in vrmMaterial.vectorProperties)
{
// vector4 exclude TextureOffsetScale
if (vrmMaterial.textureProperties.ContainsKey(kv.Key))
{
continue;
}
var v = new Vector4(kv.Value[0], kv.Value[1], kv.Value[2], kv.Value[3]);
vectors.Add(kv.Key, v);
}
foreach (var kv in vrmMaterial.textureProperties)
{
if (VRMMToonTextureImporter.TryGetTextureFromMaterialProperty(data, vrmMaterial, kv.Key,
out var texture))
{
textureSlots.Add(kv.Key, texture.Item2);
}
}
foreach (var kv in vrmMaterial.keywordMap)
{
if (kv.Value)
{
actions.Add(material => material.EnableKeyword(kv.Key));
}
else
{
actions.Add(material => material.DisableKeyword(kv.Key));
}
}
foreach (var kv in vrmMaterial.tagMap)
{
actions.Add(material => material.SetOverrideTag(kv.Key, kv.Value));
}
if (vrmMaterial.shader == MToon.Utils.ShaderName)
{
// TODO: Material拡張にMToonの項目が追加されたら旧バージョンのshaderPropから変換をかける
// インポート時にUniVRMに含まれるMToonのバージョンに上書きする
floatValues[MToon.Utils.PropVersion] = MToon.Utils.VersionNumber;
}
return(true);
}
public static bool TryCreateParam(GltfData data, glTF_VRM_extensions vrm, int materialIdx,
out MaterialDescriptor matDesc)
{
if (vrm?.materialProperties == null || vrm.materialProperties.Count == 0)
{
matDesc = default;
return(false);
}
if (materialIdx < 0 || materialIdx >= vrm.materialProperties.Count)
{
matDesc = default;
return(false);
}
var vrmMaterial = vrm.materialProperties[materialIdx];
if (vrmMaterial.shader != UnlitTransparentZWriteShaderName)
{
matDesc = default;
return(false);
}
// use material.name, because material name may renamed in GltfParser.
var name = data.GLTF.materials[materialIdx].name;
var textureSlots = new Dictionary <string, TextureDescriptor>();
var floatValues = new Dictionary <string, float>();
var colors = new Dictionary <string, Color>();
var vectors = new Dictionary <string, Vector4>();
var actions = new Collection <Action <Material> >();
if (vrmMaterial.textureProperties.ContainsKey(UnlitTransparentZWriteMainTexturePropName))
{
if (VRMMToonTextureImporter.TryGetTextureFromMaterialProperty(data, vrmMaterial,
UnlitTransparentZWriteMainTexturePropName, out var texture))
{
textureSlots.Add(MToon.Utils.PropMainTex, texture.Item2);
}
}
actions.Add(unityMaterial =>
{
var mainTexture = (Texture2D)unityMaterial.GetTexture(MToon.Utils.PropMainTex);
// NOTE: Unlit のフォールバックなので
// Lit/Shade 色は黒として、Alpha のために Lit にテクスチャを設定する.
// Emissive 色は白として、テクスチャを設定する.
// また、元のシェーダのうちユーザが設定できるプロパティは Texture のみ.
MToon.Utils.SetMToonParametersToMaterial(unityMaterial, new MToonDefinition
{
Meta = new MetaDefinition
{
Implementation = MToon.Utils.Implementation,
VersionNumber = MToon.Utils.VersionNumber,
},
Rendering = new RenderingDefinition
{
// NOTE: Transparent ZWrite
RenderMode = RenderMode.TransparentWithZWrite,
CullMode = CullMode.Back,
RenderQueueOffsetNumber = 0,
},
Color = new ColorDefinition
{
// NOTE: Unlit なので、RGB 値は黒とする。
// NOTE: Alpha は使うので、テクスチャを設定する.
LitColor = new Color(0, 0, 0, 1),
LitMultiplyTexture = mainTexture,
ShadeColor = new Color(0, 0, 0, 1),
ShadeMultiplyTexture = default,
