Vertex Animation Textures Workflow (#29)

* Base Commit

* Moved Misplaced Asset + Added Documentation

* Updated VAT ROP with inverse winding option + Check Normals

* More precisions in the documentation

Co-authored-by: Thomas Iché <thomasi@unity3d.com>

DCC-Tools~/Houdini/README.txt

 ========
 
  * Use the File > Import > Houdini Digital Asset to Import the Unity_VFX_Tools.hda file.
+ * Use the File > Import > Houdini Digital Asset to Import the VAT-ROP.hda file to import the VAT ROP
+
+    2021 - 11 - 21: 
+    ---------------
+    Added VAT ROP Exporter
+
+    2021 - 11 - 02: 
+    ---------------
+    Upgraded PCache/VF exporters to python3
+    Added X flip option for export
+
 
     2018 - 11 - 02: 
     ---------------

Documentation~/DCCTools.md

 
 * **Examples** (Folder) : Contains a set of houdini example files (.hipnc)
 * **Unity_VFX_Tools.hda** : The digital Asset file containing the Unity VFX Toolbox Digital assets for Houdini.
+* **VAT-ROP.hda** : The digital Asset file containing the Vertex Animation Texture ROP Exporter.
+
+## Vertex Animation Textures
+
+Vertex animation textures is a workflow that enable animating vertices of a mesh, based on data baked into texture objects. These textures contain generally per-pixel data that correspond to the position, normal or other attributes of a particular vertex. The positions can be baked either as absolute, or relative to a reference mesh (for ex: a T-Pose character). VFXToolbox enables the worfklow by providing a Houdini Exporter and some sample assets that you can import in your unity project to handle these textures
+
+## Houdini VAT Exporter (ROP)
+
+The VAT-ROP exports point data from frames of an animated mesh to textures. It produces textures with point data that correspond to the values of position and normal of a given SOP. Each texture is composed of lines of data, each line corresponding to one frame of animation. Every pixel on one line holds the data for a particular vertex.
+
+For convenience, we advise to facet (unique points) and derive normals to points so we end up in a 1:1 point:vertex values for export.
+
+#### Baking Modes
+It can be used in two different modes:
+* *Non-uniform topology* : This mode assumes that the geometry is re-written every frame and will bake the absolute positions of vertices by groups of 3. You have to determine a maximum point count so it will drive the width of the texture. In non-uniform topology mode, degenerate input geometry must be used. There are some assets exported with way, already bundled in the VertexAnimationTextures Sample of VFX Toolbox. In a Non-Uniform Topology, only the Positions and the Normals are exported.
+* *Uniform topology* : This mode uses a reference mesh as initial pose, so all the positions are not baked as their absolute value, but instead as position differences from the T-Pose. This enables sampling multiple frames and performing blending. Normals are still baked as absolute value in object space.
+
+#### Export Options
+
+Some options enable you to perform some changes before export such as:
+
+* Reverse Frame Order
+* Reverse Triangle Winding (Triangles will appear back-face, this can solve some of the inverted faces issues in unity)
+
+#### Export File Formats
+The exporter can run in two different file formats: EXR and TGA. EXR holds 32bit floating point value data per channel, whereas TGA only stores data in 8 bit per channel. TGA Also stores the -1 to 1 range in unsigned normalized.
+
+#### Limitations:
+* Maximum of 16384 points per frame baked (maximum width of a texture in unity)
+* Only Position / Normals baked at the moment
+* TGA Export clamps values from an unit cube (-1 .. 1) in each axis, and stores it as unsigned normalized.
+* If a Point Normal attribute is not found, the log will output a warning, and the Normal VAT texture will be filled with Up vector constant values)
+
+### Import in Unity
+By deploying the VertexAnimationTextures sample from the VFXToolbox package manager page, you will install in the project some assets that you can start with, or use as example to use vertex animation textures. The sample also contains an `AssetPostprocessor` that will configure any texture of extension `tga` or `exr` with the following suffixes `-VATPOS` (Position) or `-VATNRM` (Normals).
+
+A `VAT-Simple` Shadergraph uses a sample `Sample VertexAnimationTexture` Subgraph that loads the value directly from the VertexID. Its use is demonstrated through the `VAT-SingleParticle.vfx` and `VAT-Characters.vfx` VFXGraphs
+
+### Troubleshooting
+* __In Uniform topology, the geometry can become garbled__: as if the triangles were in correct place, but somehow rotated. This is related to the winding order of the mesh. Please check the `Optimize Mesh` in the import options and ensure `Vertex Order` is enabled. Also, the problem can also come from the inverted winding
+* __The animation is played backwards__ : This can happen when your texture is baked top to bottom. You can use the Reverse Frame order option in the exporter, or play it backwards (see the ReverseAnimation property in the `VAT-SingleParticle` example)

package.json

   ],
   "type": "tool",
   "hideInEditor": false,
-  "unity": "2020.2"
+  "unity": "2020.2",
+  "samples": [
+    {
+      "displayName": "Vertex Animation Textures (VATs)",
+      "description": "Additional Assets for sampling VertexAnimationTextures. Use the VAT ROP houdini exporter in the package's DCC-Tools~ directory to generate textures from houdini. These samples use ShaderGraph, Visual Effect Graph and High Definition Render Pipeline to render.",
+      "path": "Samples~/VertexAnimationTextures"
+    }
+  ]
 }

DCC-Tools~/Houdini/VAT-ROP.hda

+INDX
INDEX_SECTION�a�-�houdini.hdalibrary�a�-�Driver/vat_output�B3a�-�

+vat_outputVertex Animation Texture*oplib:/Driver/vat_output?Driver/vat_output	ROP_shellDrivera�-�
INDX	DialogScript�a��CreateScript�
-a�-�TypePropertiesOptions
.a��HelpKa��Tools.shelfK
a�:InternalFileOptionsL0a�-�Contents.gz|�a�-�PythonModule^#J#JExtraFileOptions?�
ua��# Dialog script for vat_output automatically generated
+
+{
+    name	vat_output
+    script	vat_output
+    label	"Vertex Animation Texture"
+
+    help {
+	""
+    }
+
+    parm {
+        name    "execute"
+        baseparm
+        label   "Render"
+        joinnext
+        export  none
+    }
+    parm {
+        name    "renderdialog"
+        baseparm
+        label   "Controls..."
+        nolabel
+        export  none
+    }
+    parm {
+        name    "trange"
+        label   "Valid Frame Range"
+        type    ordinal
+        default { "off" }
+        menu {
+            "off"       "Render Current Frame"
+            "normal"    "Render Frame Range"
+            "on"        "Render Frame Range Only (Strict)"
+        }
+        parmtag { "autoscope" "0000000000000000" }
+        parmtag { "script_callback_language" "python" }
+    }
+    parm {
+        name    "f"
+        label   "Start/End/Inc"
+        type    float
+        size    3
+        default { [ "$FSTART" hscript-expr ] [ "$FEND" hscript-expr ] "1" }
+        disablewhen "{ trange == off }"
+        range   { 0 10 }
+        parmtag { "autoscope" "0000000000000000" }
+        parmtag { "script_callback_language" "python" }
+    }
+    parm {
+        name    "take"
+        label   "Render with Take"
+        type    string
+        default { "_current_" }
+        menu {
+            [ "opmenu -l -a shell1 take" ]
+        }
+        parmtag { "autoscope" "0000000000000000" }
+        parmtag { "script_callback_language" "python" }
+    }
+    parm {
+        name    "parm_reverseFrames"
+        label   "Reverse Frames"
+        type    toggle
+        default { "0" }
+        parmtag { "script_callback_language" "python" }
+    }
+    groupsimple {
+        name    "folder"
+        label   "Baking Options"
+
+        parm {
+            name    "parm_mode"
+            label   "Label"
+            type    integer
+            default { "0" }
+            menu {
+                "0" "Non-Uniform Topology (Fluids)"
+                "1" "Uniform Topology (Skin/RB Animation)"
+            }
+            range   { 0 10 }
+            parmtag { "script_callback_language" "python" }
+        }
+        parm {
+            name    "pointCount"
+            label   "Point Count"
+            type    integer
+            default { "16384" }
+            hidewhen "{ parm_mode != 0 }"
+            range   { 256 16384 }
+            parmtag { "script_callback_language" "python" }
+        }
+        parm {
+            name    "parm_tpose"
+            label   "T-Pose reference SOP"
+            type    oppath
+            default { "" }
+            hidewhen "{ parm_mode != 1 }"
+            parmtag { "opfilter" "!!SOP!!" }
+            parmtag { "oprelative" "." }
+            parmtag { "script_callback_language" "python" }
+        }
+        parm {
+            name    "sop_output"
+            label   "Target Animated SOP"
+            type    oppath
+            default { "" }
+            parmtag { "opfilter" "!!SOP!!" }
+            parmtag { "oprelative" "." }
+            parmtag { "script_callback_language" "python" }
+        }
+        parm {
+            name    "pram_reverseWinding"
+            label   "Reverse Triangle Winding"
+            type    toggle
+            default { "0" }
+            parmtag { "script_callback_language" "python" }
+        }
+    }
+
+    groupsimple {
+        name    "folder0"
+        label   "Output"
+
+        parm {
+            name    "folder_customOutputFolder"
+            label   " "
+            type    toggle
+            joinnext
+            default { "0" }
+            parmtag { "script_callback_language" "python" }
+        }
+        parm {
+            name    "parm_manualPath"
+            label   "Output Directory"
+            type    directory
+            default { "$HIP/" }
+            disablewhen "{ folder_customOutputFolder == 0 }"
+            parmtag { "script_callback_language" "python" }
+        }
+        parm {
+            name    "parm_outFileName"
+            label   "Base File Name"
+            type    string
+            default { "VAT" }
+            parmtag { "script_callback_language" "python" }
+        }
+        parm {
+            name    "parm_posPrecision"
+            label   "Position File Type"
+            type    integer
+            default { "1" }
+            menu {
+                "0" "TGA (Low-precision)"
+                "1" "EXR (High Precision)"
+            }
+            range   { 0 10 }
+            parmtag { "script_callback_language" "python" }
+        }
+        parm {
+            name    "parm_nrmPrecision"
+            label   "Normals File Type"
+            type    integer
+            default { "0" }
+            menu {
+                "0" "TGA (Low-precision)"
+                "1" "EXR (High Precision)"
+            }
+            range   { 0 10 }
+            parmtag { "script_callback_language" "python" }
+        }
+    }
+
+}
+# Automatically generated script
+\set noalias = 1
+#
+#  Creation script for vat_output operator
+#
+
+if ( "$arg1" == "" ) then
+    echo This script is intended as a creation script
+    exit
+endif
+
+# Node $arg1 (Driver/vat_output)
+opexprlanguage -s hscript $arg1
+opuserdata -n '___Version___' -v '' $arg1
+CheckExternal := 1;
+ContentsCompressionType := 1;
+ForbidOutsideParms := 1;
+GzipContents := 1;
+LockContents := 1;
+MakeDefault := 1;
+ParmsFromVfl := 0;
+PrefixDroppedParmLabel := 0;
+PrefixDroppedParmName := 0;
+SaveCachedCode := 0;
+SaveIcon := 1;
+SaveSpareParms := 0;
+UnlockOnCreate := 0;
+UseDSParms := 1;
+<?xml version="1.0" encoding="UTF-8"?>
+<shelfDocument>
+  <!-- This file contains definitions of shelves, toolbars, and tools.
+ It should not be hand-edited when it is being used by the application.
+ Note, that two definitions of the same element are not allowed in
+ a single file. -->
+
+  <tool name="$HDA_DEFAULT_TOOL" label="$HDA_LABEL" icon="$HDA_ICON">
+    <toolMenuContext name="viewer">
+      <contextNetType>ROP</contextNetType>
+    </toolMenuContext>
+    <toolMenuContext name="network">
+      <contextOpType>$HDA_TABLE_AND_NAME</contextOpType>
+    </toolMenuContext>
+    <toolSubmenu>Unity VFX</toolSubmenu>
+    <script scriptType="python"><![CDATA[import drivertoolutils
+
+drivertoolutils.genericTool(kwargs, '$HDA_NAME')]]></script>
+  </tool>
+</shelfDocument>
+nodeconntype
nodeparmtype
���W_o�6װ�Y��=9UI��l��-�և,04��I�%T"5����$��;R���V��)P��wG������q�ڏy�>I���g���Di$I�ep��r���޴��AV�L���
+)s*��~�+�#�]S��n;�6Tg%S9+�����N�`k�v2�4�k�yn+T�+�I��,���4�#7��L�ٍ�r@S�t��E���@
����fM[S���;����Y�H�����*eɼR�޳%�9��,�uYï���Z�ܒ�^��jj���̜ā���hWk�f7��M��C�^ц���޽u+~�aI���L2�I�$\D)�~V���R��2��G;]
+�.K�P���W痿?;��K���� ��0�
���2��i
+�,b��r��?~���.DTe�jmv�YS��蚡����c+#���5�)&M�x�p�^�V�1��6�֗G�Y0�#���sU��&²���pܓ&;��Z�Y��a�$��!�a�����[�ڎ���Y���݁!�x�����HU>��i;l������J�����B�kT�3 ���C�BE$=_��ls��s����bk[���p�֥���;s��I�2+�W��?/ȕw�n��ۇ8����.4]��.�`
+���U�x��	����d���*��d���#�6 �U�ʹᕷ�:	׏^]y�����B�=�I�Ӄ��iҖ�����W�总�e�f�7�����0z;�������׼��XT�kcO�f(�Ao�4
+�K�
+f�y����C��^U�U�(�����Ȣ<ߓz��kcb�/��a4��UUs@΍���4�1�P��7�m-@���_D��l~j'=D��pJ=}L��!�,���4�̴�7�8,�gB(=e�wwR����R�y77Jv���w{򸇘>��i��**~?ӧ�`����Na|���G�z~E>��e�d�D�3퐣_����//�;�����ɉ�/��L��import numpy as np
+import hou
+import os.path
+
+#####################################################
+# Targa I/O Helper
+
+class Targa(object):
+
+    m_fileName = ""
+    m_width = 1
+    m_height = 1
+
+    m_rgbdata = bytearray()
+    m_adata = bytearray()
+    
+    # CONSTRUCTOR WITH CREATE
+    def __init__(self, fileName, width, height):
+        self.m_fileName = fileName
+        self.m_width = width
+        self.m_height = height
+        self.m_rgbdata = bytearray(width*height*3)
+        self.m_adata = bytearray(width*height)
+        self.Fill(0,255,0,255)
+
+    def Fill(self, r, g, b, a):
+        for i in range (self.m_height*self.m_width):
+            self.m_rgbdata[i*3] = r
+            self.m_rgbdata[i*3+1] = g
+            self.m_rgbdata[i*3+2] = b
+            self.m_adata[i] = a
+            
+    def SetPixelByIdx(self,i,r,g,b,a):
+        self.m_rgbdata[i*3] = r
+        self.m_rgbdata[i*3+1] = g
+        self.m_rgbdata[i*3+2] = b
+        self.m_adata[(i)] = a
+        return       
+ 
+    def SetPixel(self,x,y,r,g,b,a):
+        index = self.getIndexRGB(x,y)
+        self.m_rgbdata[index] = r
+        self.m_rgbdata[index+1] = g
+        self.m_rgbdata[index+2] = b
+        self.m_adata[(x*y)] = a
+        return
+    
+    def getIndexRGB(self,x,y):
+        return ((y*self.m_width)+x)*3
+    
+    def getIndexA(self,x,y):
+        return (y*self.m_width)+x
+
+    def R(self,x,y):
+        return self.m_rgbdata[self.getIndexRGB(x, y)]
+    
+    def G(self,x,y):
+        return self.m_rgbdata[self.getIndexRGB(x, y)+1]
+    
+    def B(self,x,y):
+        return self.m_rgbdata[self.getIndexRGB(x, y)+2]
+       
+    def A(self,x,y):
+        return self.m_adata[self.getIndexA(x, y)]
+
+    def Save(self,mode):
+        
+        f = open(self.m_fileName, 'wb')
+        # WRITE HEADER
+        header = bytearray()
+        header.append(0) # No ID Field
+        header.append(0) # No Color Map
+        header.append(2) # Uncompressed Color without colormap
+        # Null dummies for colormap (unused)
+        header.append(0)
+        header.append(0)
+        header.append(0)
+        header.append(0)
+        header.append(0)
+        # End Null dummies
+        # 2 bytes for X origin, 2 bytes for Y origin (will be zero)
+        header.append(0)
+        header.append(0)
+        header.append(0)
+        header.append(0)
+        # Width then Length (2 bytes each)
+        header.append(self.m_width % 256)
+        header.append(self.m_width >> 8)
+        header.append(self.m_height % 256)
+        header.append(self.m_height >> 8)
+        
+        if mode == 0:          # RGB
+            header.append(24)
+        else:                  # RGBA
+            header.append(32) 
+        # Descriptor have to be zero to be truvevision targa compliant
+        header.append(0)
+        # WRITE HEADER
+        f.write(header)
+        image_data = bytearray()
+        
+        count = 0
+        # WRITE DATA
+        for j in range(self.m_height-1,-1,-1):
+            for i in range(self.m_width):
+                count += 1
+                image_data.append(self.B(i, j))
+                image_data.append(self.G(i, j))
+                image_data.append(self.R(i, j))
+                if mode == 1:
+                    image_data.append(self.A(i, j))
+        
+        f.write(image_data)
+        f.close()
+
+def byte(value):
+    return max(0,min(255,int((value * 0.5 + 0.5) * 255)))
+        
+        
+def saveImageDataToTGA(data, count, frames, filename):
+    tga = Targa(filename, count, frames)
+    for i in range(count * frames):
+        r = byte(data[i*4])
+        g = byte(data[i*4+1])
+        b = byte(data[i*4+2])
+        tga.SetPixelByIdx(i,r,g,b,255)
+    tga.Save(0)
+        
+
+def initialize():
+    node = hou.pwd().parent()
+
+    minFrame = node.parm("f1").evalAsFloat()
+    maxFrame = node.parm("f2").evalAsFloat()
+    interval = node.parm("f3").evalAsFloat()
+    
+    mode = node.parm("parm_mode").evalAsInt()
+    
+    frames = int((1 + maxFrame - minFrame)/interval)
+    
+    if mode == 0:
+        count = int(node.parm("pointCount").evalAsInt())
+    elif mode == 1:
+        count = len(node.parm("sop_output").evalAsNode().geometry().prims()) *3
+        
+    if count == 0 or count > 16384:
+        raise hou.Error("incorrect point count or SOP not referenced");
+    
+    posData = np.empty((count*frames)*4, dtype=float)
+    nrmData = np.empty((count*frames)*4, dtype=float)
+    
+    sop = node.parm("sop_output").evalAsNode()
+    if sop == None:
+        print ("No SOP Object Defined")
+        return    
+    
+    geo = sop.geometry()
+    
+    
+    if geo.findPointAttrib("N") == None:
+        print ("WARNING: No N (Nornal) attribute found at point level, will default to Up Normal")
+    
+    node.setCachedUserData("mode",mode)
+    node.setCachedUserData("count",count)
+    
+    node.setCachedUserData("frames",frames)
+    node.setCachedUserData("posData",posData)
+    node.setCachedUserData("nrmData",nrmData)
+    
+def process(frame):
+
+    node = hou.pwd().parent()
+    posHQ = node.parm("parm_posPrecision").evalAsInt() == 1
+    nrmHQ = node.parm("parm_nrmPrecision").evalAsInt() == 1
+    reverseWinding = node.parm("pram_reverseWinding").evalAsInt() == 1
+    reverseFrames = node.parm("parm_reverseFrames").evalAsInt() == 1
+    
+    sop = node.parm("sop_output").evalAsNode()
+    
+    if sop == None:
+        print ("No SOP Object Defined")
+        return
+        
+    geo = sop.geometry()
+    count = node.cachedUserData("count")
+    mode = node.cachedUserData("mode")
+    posData = node.cachedUserData("posData")    
+    nrmData = node.cachedUserData("nrmData")
+
+    hasNormal = geo.findPointAttrib("N") != None
+    
+    if mode == 1:
+        ref_points = node.parm("parm_tpose").evalAsNode().geometry().points()
+    
+    # "not" is intended here, we reverse layout by default in order to be compatible with unity
+    if not reverseFrames:
+        minFrame = node.parm("f1").evalAsFloat()
+        maxFrame = node.parm("f2").evalAsFloat()
+        interval = node.parm("f3").evalAsFloat()
+        frames = int((1 + maxFrame - minFrame)/interval) 
+        frame = frames-frame
+    
+    i = 0
+    for prim in geo.prims():
+        k = 0
+        
+        pts = prim.points()
+        
+        if reverseWinding:
+            pts.reverse()
+        
+        for point in pts:
+        
+            if i >= count:
+                print ("Reached more than {} points at frame {}".format(count,frame))
+                break
+                
+            if k > 2:
+                print ("Found a primitive with more than 3 vertices{}".format(count,frame))
+                break
+            
+            if mode == 0:
+                pos = point.position()
+            elif mode == 1:
+                idx = point.number()
+                pos = point.position() - ref_points[idx].position()
+            
+            if hasNormal:
+                nrm = point.attribValue("N")
+            else:
+                nrm = (0.0,1.0,0.0)             
+                            
+            stride = int(((frame-1)*count*4)+(i*4))
+            
+            
+            posData[stride] = -pos[0]
+            posData[stride+1] = pos[1]
+            posData[stride+2] = pos[2]
+            nrmData[stride] = -nrm[0]
+            nrmData[stride+1] = nrm[1]
+            nrmData[stride+2] = nrm[2]            
+            
+            k = k+1   
+            i = i+1
+    
+    node.setCachedUserData("posData",posData)
+    node.setCachedUserData("nrmData",nrmData)    
+    
+def finalize():
+    node = hou.pwd().parent()
+    
+    count = node.cachedUserData("count")    
+    frames = node.cachedUserData("frames")
+    posData = node.cachedUserData("posData")    
+    nrmData = node.cachedUserData("nrmData")
+    
+    customOut = (node.parm("folder_customOutputFolder").evalAsInt() == 1)
+    if(customOut):
+        cwd = node.parm("parm_manualPath").evalAsString()
+    else:
+        cwd = os.path.dirname(hou.hipFile.path())
+        
+    f = node.parm("parm_outFileName").evalAsString()
+    
+    if(node.parm("parm_posPrecision").evalAsInt() == 0):
+        ext = "tga"
+        filename = "{}/{}-VATPOS.{}".format(cwd,f,ext)
+        print("Saving Position to : {} ...".format(filename))
+        saveImageDataToTGA(posData, count, frames, filename)
+    else:
+        ext = "exr"    
+        filename = "{}/{}-VATPOS.{}".format(cwd,f,ext)
+        print("Saving Position to : {} ...".format(filename))
+        hou.saveImageDataToFile(posData, count, frames, filename)    
+    
+    
+    if(node.parm("parm_nrmPrecision").evalAsInt() == 0):
+        ext = "tga"
+        filename = "{}/{}-VATNRM.{}".format(cwd,f,ext)
+        print("Saving Position to : {} ...".format(filename))
+        saveImageDataToTGA(nrmData, count, frames, filename)        
+    else:
+        ext = "exr"
+        filename = "{}/{}-VATNRM.{}".format(cwd,f,ext)
+        print("Saving Position to : {} ...".format(filename))
+        hou.saveImageDataToFile(nrmData, count, frames, filename)        
+    
+            
+    node.destroyCachedUserData("posData")
+    node.destroyCachedUserData("nrmData") PythonModule/Cursor
�)PythonModule/IsExpr
PythonModule/IsPython

PythonModule/IsScript

PythonModule/SourceViewerStateModule/CodeGenInput�{
+	"state_name":"",
+	"state_label":"",
+	"state_descr":"",
+	"state_icon":"$HH/config/Icons",
+	"state_debug_menu":0,
+	"state_sample":0,
+	"state_handler_indices":[]
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Samples~/VertexAnimationTextures/Script/Editor/VATTexturePostProcessor.cs

+using UnityEngine;
+using UnityEditor;
+
+public class VATTexturePostProcessor : AssetPostprocessor
+{
+    void OnPreprocessTexture()
+    {
+
+        if(    assetPath.EndsWith("-VATPOS.tga")
+            || assetPath.EndsWith("-VATPOS.exr")
+            || assetPath.EndsWith("-VATNRM.tga")
+            || assetPath.EndsWith("-VATNRM.exr")
+            )
+        {
+            var importer = (TextureImporter)assetImporter;
+
+            importer.sRGBTexture = false;
+            importer.maxTextureSize = 16384;
+            importer.textureCompression = TextureImporterCompression.Uncompressed;
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+            importer.mipmapEnabled = false;
+            importer.wrapMode = TextureWrapMode.Clamp;
+            importer.filterMode = FilterMode.Point;
+        }
+    }
+}

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Samples~/VertexAnimationTextures/Script/VertexAnimationTextureMesh.cs

+using UnityEngine;
+
+public class VertexAnimationTextureMesh : MonoBehaviour
+{
+    private void OnPostRender()
+    {
+        
+    }
+}

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