private void WriteHeightMap(TerrainData terrain, PrefabContext prefabContext)
{
var w = terrain.heightmapResolution;
var h = terrain.heightmapResolution;
var max = float.MinValue;
var min = float.MaxValue;
var heights = terrain.GetHeights(0, 0, w, h);
foreach (var height in heights)
{
if (height > max)
{
max = height;
}
if (height < min)
{
min = height;
}
}
if (max < min)
{
max = 1;
min = 0;
}
else if (max == min)
{
max = min + 0.1f;
}
using (var imageFile = _engine.TryCreate(terrain.GetKey(), EvaluateHeightMap(terrain), DateTime.MaxValue))
{
if (imageFile != null)
{
using (var binaryWriter = new BinaryWriter(imageFile))
{
WriteTgaHeader(binaryWriter, 32, w, h);
for (var y = h - 1; y >= 0; --y)
{
for (var x = 0; x < w; ++x)
{
var height = (heights[h - y - 1, x] - min) / (max - min) * 255.0f;
var msb = (byte)height;
var lsb = (byte)((height - msb) * 255.0f);
binaryWriter.Write((byte)0); //B - none
binaryWriter.Write(lsb); //G - LSB
binaryWriter.Write(msb); //R - MSB
binaryWriter.Write((byte)255); //A - none
}
}
}
}
}
}
public void ExportAnimation(AnimationClip clip, PrefabContext prefabContext)
{
if (!_engine.Options.ExportAnimations)
{
return;
}
var aniFilePath = EvaluateAnimationName(clip, prefabContext);
ExportMetadata(ExportUtils.ReplaceExtension(aniFilePath, ".xml"), clip, prefabContext);
using (var file = _engine.TryCreate(clip.GetKey(), aniFilePath,
ExportUtils.GetLastWriteTimeUtc(clip)))
{
if (file == null)
{
return;
}
using (var writer = new BinaryWriter(file))
{
writer.Write(new byte[] { 0x55, 0x41, 0x4e, 0x49 });
WriteStringSZ(writer, _engine.DecorateName(clip.name));
writer.Write(clip.length);
// Legacy animation
if (clip.legacy)
{
WriteTracksAsIs(clip, writer);
}
else if (clip.isHumanMotion)
{
WriteHumanoidAnimation(clip, writer);
}
else
{
WriteGenericAnimation(clip, writer);
}
}
}
}
public void ExportAnimation(AnimationClip clipAnimation, PrefabContext prefabContext)
{
if (!_engine.Options.ExportAnimations)
{
return;
}
var name = GetSafeFileName(_engine.DecorateName(clipAnimation.name));
//_assetCollection.AddAnimationPath(clipAnimation, fileName);
var aniFilePath = EvaluateAnimationName(clipAnimation, prefabContext);
using (var file = _engine.TryCreate(clipAnimation.GetKey(), aniFilePath,
ExportUtils.GetLastWriteTimeUtc(clipAnimation)))
{
if (file == null)
{
return;
}
using (var writer = new BinaryWriter(file))
{
writer.Write(new byte[] { 0x55, 0x41, 0x4e, 0x49 });
WriteStringSZ(writer, _engine.DecorateName(clipAnimation.name));
writer.Write(clipAnimation.length);
if (clipAnimation.legacy)
{
WriteTracksAsIs(clipAnimation, writer);
}
else
{
var allBindings = AnimationUtility.GetCurveBindings(clipAnimation);
var rootBones =
new HashSet <string>(allBindings.Select(_ => GetRootBoneName(_)).Where(_ => _ != null));
if (rootBones.Count != 1)
{
Debug.LogWarning(aniFilePath + ": Multiple root bones found (" +
string.Join(", ", rootBones.ToArray()) +
"), falling back to curve export");
WriteTracksAsIs(clipAnimation, writer);
}
else
{
var rootBoneName = rootBones.First();
var rootGOs = _skeletons
.Select(_ => _.name == rootBoneName ? _.transform : _.transform.Find(rootBoneName))
.Where(_ => _ != null).ToList();
if (rootGOs.Count == 1)
{
WriteSkelAnimation(clipAnimation, rootGOs.First().gameObject, writer);
}
else
{
Debug.LogWarning(aniFilePath +
": Multiple game objects found that match root bone name, falling back to curve export");
WriteTracksAsIs(clipAnimation, writer);
}
}
}
}
}
}
