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Merge pull request #2749 from cpetry/master

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Fixes #2748 - Adjusted URP emissiveFactor analog to Built-in material
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ousttrue 2025-11-21 16:03:12 +09:00 committed by GitHub
commit e7e494f5a9
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1 changed files with 11 additions and 1 deletions
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12
Packages/UniGLTF/Runtime/UniGLTF/IO/MaterialIO/URP/Export/Materials/UrpLitMaterialExporter.cs
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@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.Rendering;
@ -174,7 +175,16 @@ namespace UniGLTF
{
if (!context.IsEmissionEnabled) return;
dst.emissiveFactor = context.EmissionColorLinear.ToFloat3(ColorSpace.Linear, ColorSpace.Linear);
var emissiveFactor = context.EmissionColorLinear.ToFloat3(ColorSpace.Linear, ColorSpace.Linear);
// Unity uses HDR color for emission factor. Normalize it if any component is greater than 1.
// If not normalized, glTF validator throws an error "VALUE_NOT_IN_RANGE"
var maxComponent = emissiveFactor.Max();
if (maxComponent > 1)
{
emissiveFactor = emissiveFactor.Select(x => x / maxComponent).ToArray();
glTF_KHR_materials_emissive_strength.Serialize(ref dst.extensions, maxComponent);
}
dst.emissiveFactor = emissiveFactor;
if (context.EmissionTexture != null)
{
var index = textureExporter.RegisterExportingAsSRgb(context.EmissionTexture, true);