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https://github.com/vrm-c/UniVRM.git
synced 2026-04-24 15:08:02 -05:00
Implements VRM10 MToon Exporter
This commit is contained in:
Masataka SUMI
parent
44145bc6ca
commit
d33b928eeb
231
Assets/VRM10/Runtime/IO/Material/Vrm10MToonMaterialExporter.cs
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231
Assets/VRM10/Runtime/IO/Material/Vrm10MToonMaterialExporter.cs
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using System;
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using MToon;
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using UniGLTF;
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using UniGLTF.Extensions.VRMC_materials_mtoon;
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using UnityEngine;
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using VRMShaders;
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using ColorSpace = UniGLTF.ColorSpace;
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using OutlineWidthMode = MToon.OutlineWidthMode;
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using RenderMode = MToon.RenderMode;
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namespace UniVRM10
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{
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public static class Vrm10MToonMaterialExporter
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{
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public static bool TryExportMaterialAsMToon(Material src, TextureExporter textureExporter, out glTFMaterial dst)
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{
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try
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{
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if (src.shader.name != MToon.Utils.ShaderName)
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{
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dst = null;
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return false;
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}
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// convert MToon intermediate value from UnityEngine.Material
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var def = MToon.Utils.GetMToonParametersFromMaterial(src);
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// gltfMaterial
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dst = new glTFMaterial
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{
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name = src.name,
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// Rendering
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doubleSided = def.Rendering.CullMode == CullMode.Off,
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alphaMode = ExportAlphaMode(def.Rendering.RenderMode),
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alphaCutoff = Mathf.Max(def.Color.CutoutThresholdValue, 0),
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// Lighting
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pbrMetallicRoughness = new glTFPbrMetallicRoughness
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{
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baseColorFactor = def.Color.LitColor.ToFloat4(ColorSpace.sRGB, ColorSpace.Linear),
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baseColorTexture = new glTFMaterialBaseColorTextureInfo
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{
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index = textureExporter.ExportSRGB(def.Color.LitMultiplyTexture),
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},
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},
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normalTexture = new glTFMaterialNormalTextureInfo
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{
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index = textureExporter.ExportNormal(def.Lighting.Normal.NormalTexture),
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scale = def.Lighting.Normal.NormalScaleValue,
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},
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// Emission
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emissiveFactor = def.Emission.EmissionColor.ToFloat3(ColorSpace.Linear, ColorSpace.Linear),
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emissiveTexture = new glTFMaterialEmissiveTextureInfo
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{
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index = textureExporter.ExportSRGB(def.Emission.EmissionMultiplyTexture),
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},
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};
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const float centimeterToMeter = 0.01f;
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const float invertY = -1f;
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// VRMC_materials_mtoon
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var mtoon = new UniGLTF.Extensions.VRMC_materials_mtoon.VRMC_materials_mtoon
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{
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Version = "",
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// Rendering
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TransparentWithZWrite = def.Rendering.RenderMode == RenderMode.TransparentWithZWrite,
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RenderQueueOffsetNumber = ExportRenderQueueOffset(def.Rendering.RenderMode, def.Rendering.RenderQueueOffsetNumber),
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// Lighting
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ShadeColorFactor = def.Color.ShadeColor.ToFloat3(ColorSpace.sRGB, ColorSpace.Linear),
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ShadeMultiplyTexture = new TextureInfo
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{
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Index = textureExporter.ExportSRGB(def.Color.ShadeMultiplyTexture),
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},
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ShadingToonyFactor = def.Lighting.LitAndShadeMixing.ShadingToonyValue,
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ShadingShiftFactor = def.Lighting.LitAndShadeMixing.ShadingShiftValue,
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ShadingShiftTexture = null,
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// Global Illumination
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GiIntensityFactor = def.Lighting.LightingInfluence.GiIntensityValue,
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// Rim Lighting
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MatcapTexture = new TextureInfo
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{
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Index = textureExporter.ExportSRGB(def.MatCap.AdditiveTexture),
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},
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ParametricRimColorFactor = def.Rim.RimColor.ToFloat3(ColorSpace.Linear, ColorSpace.Linear),
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ParametricRimFresnelPowerFactor = def.Rim.RimFresnelPowerValue,
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ParametricRimLiftFactor = def.Rim.RimLiftValue,
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RimMultiplyTexture = new TextureInfo
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{
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Index = textureExporter.ExportSRGB(def.Rim.RimMultiplyTexture),
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},
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RimLightingMixFactor = def.Rim.RimLightingMixValue,
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// Outline
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OutlineWidthMode = ExportOutlineWidthMode(def.Outline.OutlineWidthMode),
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OutlineWidthFactor = def.Outline.OutlineWidthValue * centimeterToMeter,
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OutlineWidthMultiplyTexture = new TextureInfo
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{
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Index = textureExporter.ExportLinear(def.Outline.OutlineWidthMultiplyTexture),
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},
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OutlineColorFactor = def.Outline.OutlineColor.ToFloat3(ColorSpace.sRGB, ColorSpace.Linear),
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OutlineLightingMixFactor = ExportOutlineLightingMixFactor(def.Outline.OutlineColorMode, def.Outline.OutlineLightingMixValue),
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// UV Anim
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UvAnimationMaskTexture = new TextureInfo
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{
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Index = textureExporter.ExportLinear(def.TextureOption.UvAnimationMaskTexture),
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},
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UvAnimationScrollXSpeedFactor = def.TextureOption.UvAnimationScrollXSpeedValue,
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UvAnimationScrollYSpeedFactor = def.TextureOption.UvAnimationScrollYSpeedValue * invertY,
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UvAnimationRotationSpeedFactor = def.TextureOption.UvAnimationRotationSpeedValue,
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};
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// Texture Transforms
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var scale = def.TextureOption.MainTextureLeftBottomOriginScale;
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var offset = def.TextureOption.MainTextureLeftBottomOriginOffset;
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ExportTextureTransform(dst.pbrMetallicRoughness.baseColorTexture, scale, offset);
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ExportTextureTransform(dst.emissiveTexture, scale, offset);
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ExportTextureTransform(dst.normalTexture, scale, offset);
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ExportTextureTransform(mtoon.ShadeMultiplyTexture, scale, offset);
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ExportTextureTransform(mtoon.MatcapTexture, scale, offset);
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ExportTextureTransform(mtoon.RimMultiplyTexture, scale, offset);
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ExportTextureTransform(mtoon.OutlineWidthMultiplyTexture, scale, offset);
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ExportTextureTransform(mtoon.UvAnimationMaskTexture, scale, offset);
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UniGLTF.Extensions.VRMC_materials_mtoon.GltfSerializer.SerializeTo(ref dst.extensions, mtoon);
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return true;
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}
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catch (Exception e)
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{
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dst = null;
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return false;
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}
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}
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private static string ExportAlphaMode(MToon.RenderMode renderMode)
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{
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switch (renderMode)
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{
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case RenderMode.Opaque:
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return "OPAQUE";
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case RenderMode.Cutout:
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return "MASK";
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case RenderMode.Transparent:
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return "BLEND";
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case RenderMode.TransparentWithZWrite:
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return "BLEND";
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default:
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throw new ArgumentOutOfRangeException(nameof(renderMode), renderMode, null);
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}
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}
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private static int ExportRenderQueueOffset(MToon.RenderMode renderMode, int offset)
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{
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switch (renderMode)
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{
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case RenderMode.Opaque:
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return 0;
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case RenderMode.Cutout:
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return 0;
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case RenderMode.Transparent:
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return Mathf.Clamp(offset, -9, 0);
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case RenderMode.TransparentWithZWrite:
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return Mathf.Clamp(offset, 0, +9);
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default:
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throw new ArgumentOutOfRangeException(nameof(renderMode), renderMode, null);
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}
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}
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private static UniGLTF.Extensions.VRMC_materials_mtoon.OutlineWidthMode ExportOutlineWidthMode(
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MToon.OutlineWidthMode mode)
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{
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switch (mode)
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{
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case OutlineWidthMode.None:
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return UniGLTF.Extensions.VRMC_materials_mtoon.OutlineWidthMode.none;
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case OutlineWidthMode.WorldCoordinates:
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return UniGLTF.Extensions.VRMC_materials_mtoon.OutlineWidthMode.worldCoordinates;
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case OutlineWidthMode.ScreenCoordinates:
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return UniGLTF.Extensions.VRMC_materials_mtoon.OutlineWidthMode.screenCoordinates;
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default:
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throw new ArgumentOutOfRangeException(nameof(mode), mode, null);
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}
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}
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private static float ExportOutlineLightingMixFactor(OutlineColorMode mode, float mixValue)
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{
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switch (mode)
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{
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case OutlineColorMode.FixedColor:
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return 0;
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case OutlineColorMode.MixedLighting:
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return mixValue;
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default:
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throw new ArgumentOutOfRangeException(nameof(mode), mode, null);
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}
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}
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private static void ExportTextureTransform(glTFTextureInfo textureInfo, Vector2 unityScale, Vector2 unityOffset)
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{
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var scale = unityScale;
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var offset = new Vector2(unityOffset.x, 1.0f - unityOffset.y - unityScale.y);
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glTF_KHR_texture_transform.Serialize(textureInfo, (offset.x, offset.y), (scale.x, scale.y));
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}
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private static void ExportTextureTransform(TextureInfo textureInfo, Vector2 unityScale, Vector2 unityOffset)
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{
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// Generate extension to empty holder.
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var gltfTextureInfo = new EmptyGltfTextureInfo();
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ExportTextureTransform(gltfTextureInfo, unityScale, unityOffset);
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// Copy extension from empty holder.
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textureInfo.Extensions = gltfTextureInfo.extensions;
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}
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private sealed class EmptyGltfTextureInfo : glTFTextureInfo
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{
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}
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}
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}
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@ -0,0 +1,3 @@
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fileFormatVersion: 2
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guid: 83b9443cb6d94771a7e0090baefa80ee
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timeCreated: 1620981552
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@ -1,7 +1,6 @@
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using UniGLTF;
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using UnityEngine;
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using VRMShaders;
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using ColorSpace = UniGLTF.ColorSpace;
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namespace UniVRM10
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{
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@ -9,91 +8,14 @@ namespace UniVRM10
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{
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public override glTFMaterial ExportMaterial(Material m, TextureExporter textureExporter)
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{
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if (m.shader.name != MToon.Utils.ShaderName)
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if (Vrm10MToonMaterialExporter.TryExportMaterialAsMToon(m, textureExporter, out var dst))
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{
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return dst;
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}
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else
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{
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return base.ExportMaterial(m, textureExporter);
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}
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// convert MToon intermediate value from UnityEngine.Material
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var def = MToon.Utils.GetMToonParametersFromMaterial(m);
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// gltfMaterial
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var material = new glTFMaterial
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{
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name = m.name,
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pbrMetallicRoughness = new glTFPbrMetallicRoughness
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{
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baseColorFactor = def.Color.LitColor.ToFloat4(ColorSpace.sRGB, ColorSpace.Linear),
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baseColorTexture = new glTFMaterialBaseColorTextureInfo
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{
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index = textureExporter.ExportSRGB(def.Color.LitMultiplyTexture),
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},
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},
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emissiveFactor = def.Emission.EmissionColor.ToFloat3(ColorSpace.Linear, ColorSpace.Linear),
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};
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// VRMC_materials_mtoon
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var mtoon = new UniGLTF.Extensions.VRMC_materials_mtoon.VRMC_materials_mtoon
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{
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Version = "",
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TransparentWithZWrite = false,
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RenderQueueOffsetNumber = 0,
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ShadeColorFactor = new float[] { 0, 0, 0 },
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ShadeMultiplyTexture = new UniGLTF.Extensions.VRMC_materials_mtoon.TextureInfo
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{
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Index = textureExporter.ExportSRGB(def.Color.ShadeMultiplyTexture),
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},
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// Lighting
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ShadingShiftFactor = 0,
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ShadingToonyFactor = 0,
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GiIntensityFactor = 0,
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// MatCap
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// AdditiveTexture;
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// Rim
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ParametricRimColorFactor = new float[] { 0, 0, 0 },
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// public int? RimMultiplyTexture;
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RimLightingMixFactor = 0,
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ParametricRimFresnelPowerFactor = 0,
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ParametricRimLiftFactor = 0,
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// Outline
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OutlineWidthMode = UniGLTF.Extensions.VRMC_materials_mtoon.OutlineWidthMode.none,
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OutlineWidthFactor = 0,
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// public int? OutlineWidthMultiplyTexture;
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OutlineColorFactor = new float[] { 0, 0, 0 },
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OutlineLightingMixFactor = 0,
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// public int? UvAnimationMaskTexture;
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UvAnimationScrollXSpeedFactor = 0,
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UvAnimationScrollYSpeedFactor = 0,
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UvAnimationRotationSpeedFactor = 0,
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};
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UniGLTF.Extensions.VRMC_materials_mtoon.GltfSerializer.SerializeTo(ref material.extensions, mtoon);
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return material;
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}
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}
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}
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