private static Mesh GenerateUvBoneWeightedMesh(SkinnedMeshRenderer smr, GpuInstancedAnimationBoneExport export)
{
var mesh = Object.Instantiate(smr.sharedMesh);
var boneSets = smr.sharedMesh.boneWeights;
var boneIndexes = boneSets.Select(x => new Vector4(x.boneIndex0, x.boneIndex1, x.boneIndex2, x.boneIndex3)).ToList();
var boneWeights = boneSets.Select(x => new Vector4(x.weight0, x.weight1, x.weight2, x.weight3)).ToList();
mesh.SetUVs(2, boneIndexes);
mesh.SetUVs(3, boneWeights);
if (export != null)
{
var boneHeights = boneSets.Select(x => new Vector4(export.GetBoneHeightWeight(x.boneIndex0), export.GetBoneHeightWeight(x.boneIndex1), export.GetBoneHeightWeight(x.boneIndex2), export.GetBoneHeightWeight(x.boneIndex3))).ToList();
mesh.SetUVs(4, boneHeights);
}
return(mesh);
}
private static GameObject GenerateMeshRendererObject(GameObject targetObject, Mesh mesh, Material material, IEnumerable <AnimationClip> clips, SkinnedMeshRenderer smr)
{
var go = new GameObject();
go.name = targetObject.name;
var animation = go.AddComponent <GpuInstancedAnimation>();
GpuInstancedAnimationBoneExport animationBoneExport = targetObject.GetComponent <GpuInstancedAnimationBoneExport>();
if (animationBoneExport != null && animationBoneExport.bones != null && animationBoneExport.bones.Count > 0)
{
List <GpuInstancedAnimationBone> animationBones = new List <GpuInstancedAnimationBone>();
List <GpuInstancedAnimationBoneFrame> animationBoneFrames = new List <GpuInstancedAnimationBoneFrame>();
for (int i = 0; i < smr.bones.Length; ++i)
{
var bone = smr.bones[i];
for (int j = 0; j < animationBoneExport.bones.Count; ++j)
{
if (animationBoneExport.bones[j] == bone)
{
animationBones.Add(new GpuInstancedAnimationBone {
boneName = bone.gameObject.name, index = j, blendWeight = animationBoneExport.GetBoneHeightWeight(j)
});
animation.boneFrames.Add(new GpuInstancedAnimationBoneFrame
{
localPosition = targetObject.transform.InverseTransformPoint(bone.position),
localForward = targetObject.transform.InverseTransformVector(bone.forward),
});
}
}
}
animation.bones = animationBones;
animation.boneFrames = animationBoneFrames;
}
var animationClips = new List <GpuInstancedAnimationClip>();
var currentClipFrames = 0;
foreach (var clip in clips)
{
var frameCount = (int)(clip.length * GpuInstancedAnimation.TargetFrameRate);
var startFrame = currentClipFrames + 1;
var endFrame = startFrame + frameCount - 1;
animationClips.Add(new GpuInstancedAnimationClip(clip.name, startFrame, endFrame, frameCount, clip.isLooping ? GpuInstancedAnimationClip.WrapMode.Loop : GpuInstancedAnimationClip.WrapMode.Once));
currentClipFrames = endFrame;
if (animationBoneExport != null && animationBoneExport.bones != null && animationBoneExport.bones.Count > 0)
{
var totalFrames = (int)(clip.length * GpuInstancedAnimation.TargetFrameRate);
foreach (var frame in Enumerable.Range(0, totalFrames))
{
clip.SampleAnimation(targetObject, (float)frame / GpuInstancedAnimation.TargetFrameRate);
for (int i = 0; i < smr.bones.Length; ++i)
{
var bone = smr.bones[i];
for (int j = 0; j < animationBoneExport.bones.Count; ++j)
{
if (animationBoneExport.bones[j] == bone)
{
animation.boneFrames.Add(new GpuInstancedAnimationBoneFrame
{
localPosition = targetObject.transform.InverseTransformPoint(bone.position),
localForward = targetObject.transform.InverseTransformVector(bone.forward),
});
}
}
}
}
}
}
animation.mesh = mesh;
animation.material = material;
animation.animationClips = animationClips;
return(go);
}
