private void ExportSceneLighting(VCIExporter exporter, glTF gltf)
{
var lightmapTextureExporter = new LightmapTextureExporter(TextureExporter, gltf);
var existsLightmappedMesh = false;
for (var i = 0; i < exporter.Nodes.Count; i++)
{
var node = exporter.Nodes[i];
var gltfNode = gltf.nodes[i];
var renderer = node.GetComponent <MeshRenderer>();
if (renderer != null)
{
var useLightmapExtension = false;
#if UNITY_EDITOR
var contributeGi = UnityEditor.GameObjectUtility.GetStaticEditorFlags(node.gameObject)
.HasFlag(UnityEditor.StaticEditorFlags.ContributeGI);
var receiveLightmap = renderer.receiveGI == ReceiveGI.Lightmaps;
var isLightmapExistsInScene =
LightmapSettings.lightmaps != null && LightmapSettings.lightmaps.Length > 0;
useLightmapExtension = contributeGi && receiveLightmap && isLightmapExistsInScene;
#endif
if (useLightmapExtension)
{
var originalRenderer = _originalNodes[i].GetComponent <MeshRenderer>();
var lightmapUnityIndex = originalRenderer.lightmapIndex;
if (lightmapUnityIndex < 0 || lightmapUnityIndex >= LightmapSettings.lightmaps.Length)
{
continue;
}
var lightmapGltfIndex = lightmapTextureExporter.GetOrAddColorTexture(lightmapUnityIndex);
if (lightmapGltfIndex >= 0)
{
var so = originalRenderer.lightmapScaleOffset;
var scale = new Vector2(so.x, so.y);
var offset = new Vector2(so.z, so.w);
offset.y = (offset.y + scale.y - 1) * -1.0f;
var VCAST_vci_lightmap = new glTF_VCAST_vci_lightmap
{
lightmap = new glTF_VCAST_vci_Lightmap
{
texture = new glTFLightmapTextureInfo {
index = lightmapGltfIndex
},
offset = new[] { offset.x, offset.y },
scale = new[] { scale.x, scale.y },
},
};
var f = new UniJSON.JsonFormatter();
glTF_VCAST_vci_lightmap_Serializer.Serialize(f, VCAST_vci_lightmap);
glTFExtensionExport.GetOrCreate(ref gltfNode.extensions).Add(glTF_VCAST_vci_lightmap.ExtensionName, f.GetStore().Bytes);
existsLightmappedMesh = true;
}
}
}
}
var enableLocationLightingExtension = existsLightmappedMesh;
if (enableLocationLightingExtension)
{
var cubemapExporter = new CubemapTextureExporter(TextureExporter, glTF);
var skyboxExporter = new SkyboxExporter(cubemapExporter);
var lightProbeExporter = new LightProbeExporter();
var VCAST_vci_location_lighting = new glTF_VCAST_vci_location_lighting
{
locationLighting = new glTF_VCAST_vci_LocationLighting
{
lightmapCompressionMode =
glTF_VCAST_vci_LocationLighting.ConvertLightmapCompressionMode(lightmapTextureExporter
.CompressionType),
lightmapDirectionalMode =
glTF_VCAST_vci_LocationLighting.ConvertLightmapDirectionalMode(lightmapTextureExporter
.DirectionalType),
lightmapTextures = lightmapTextureExporter.RegisteredColorTextureIndexArray
.Select(x => new glTFLightmapTextureInfo {
index = x
})
.ToArray(),
skyboxCubemap = skyboxExporter.Export(1024),
lightProbes = lightProbeExporter.Export(),
},
};
var f = new UniJSON.JsonFormatter();
glTF_VCAST_vci_location_lighting_Serializer.Serialize(f, VCAST_vci_location_lighting);
glTFExtensionExport.GetOrCreate(ref gltf.extensions).Add(glTF_VCAST_vci_location_lighting.ExtensionName, f.GetStore().Bytes);
}
for (var i = 0; i < exporter.Nodes.Count; i++)
{
var node = exporter.Nodes[i];
var gltfNode = gltf.nodes[i];
var reflectionProbe = _originalNodes[i].GetComponent <ReflectionProbe>();
if (reflectionProbe == null)
{
continue;
}
var exportReflectionProbeExtension = false;
var isModeActive = reflectionProbe.mode == ReflectionProbeMode.Baked;
var texture = reflectionProbe.bakedTexture;
var isTextureExists = texture != null && texture.dimension == TextureDimension.Cube;
exportReflectionProbeExtension = !Application.isPlaying && isModeActive && isTextureExists;
if (!exportReflectionProbeExtension)
{
continue;
}
var reflectionProbeCubemapExporter = new CubemapTextureExporter(TextureExporter, glTF);
var offset = reflectionProbe.center;
var size = reflectionProbe.size;
var VCAST_vci_reflectionProbe = new glTF_VCAST_vci_reflectionProbe
{
reflectionProbe = new glTF_VCAST_vci_ReflectionProbe
{
boxOffset = new[] { -offset.x, offset.y, offset.z }, // invert X-axis
boxSize = new[] { size.x, size.y, size.z },
intensity = reflectionProbe.intensity,
useBoxProjection = reflectionProbe.boxProjection,
cubemap = reflectionProbeCubemapExporter.Export(texture, reflectionProbe.resolution,
includeMipmaps: true),
},
};
var f = new UniJSON.JsonFormatter();
glTF_VCAST_vci_reflectionProbe_Serializer.Serialize(f, VCAST_vci_reflectionProbe);
glTFExtensionExport.GetOrCreate(ref gltfNode.extensions).Add(glTF_VCAST_vci_reflectionProbe.ExtensionName, f.GetStore().Bytes);
}
}
public SkyboxExporter(CubemapTextureExporter exporter)
{
_exporter = exporter;
}