## ZENV ## - [houdini](https://www.sidefx.com/) hda tools focused on procedural modeling environments . - open source work in progress , many thanks to sidefx and other [libraries](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#recommended-libraries ) and tutorials . [DOWNLOAD](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv/archive/refs/heads/master.zip ) | [INSTALL NOTES](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#install ) | [HDA TOOL LIST](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#hda-tools-list ) | [ALL](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv/tree/master/hip#all-hda-tool-examples ) | [WEBSITE](https://github.com/CorvaeOboro/zenv/raw/master/ https://corvaeoboro.github.io/zenv/ ) |

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| ## INSTALL ## - [DOWNLOAD](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv/archive/refs/heads/master.zip ) , extract zip to any local path - Copy zenv.json to ( C:/Users/USER/Documents/houdini18.5/packages/ ) matching local user and houdini version - Edit zenv.json file text line to match local path to zenv folder - Alternatively may copy the included houdini.env to ( C:/Users/USER/Documents/houdini18.5/ ) editing to match local path of zenv folder - Install reccomended houdini [libraries](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#recommended-libraries ) ## HDA TOOLS LIST ## jump to category : |[ CREATE ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#create)| |[ PLANTS ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#plants )| |[ ITEM ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#item )| |[ PATH ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#path )|| | :---: | :---: | :---: | :---: | :---: | :---: | :---: | :---: | |[ LAYOUT ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#layout )| |[ MODIFY ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#modify )| |[ REMOVAL ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#removal )| |[ CHARACTER ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#removal )|| |[ UV ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#uv )| |[ QA ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#qa )| |[ TEXTURE ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#texture )| |[ VFX ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#vfx )|| |[ CAM ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#cam )| |[ MESH ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#mesh )| |[ LINES ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#lines )| | || |[ COLOR ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#color )| _________ | [ MATERIAL ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#material ) | _________ | [ NORMALS ](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv#normals )| _________ |

**[hip/00_ALL_HDA/00_ALL_HDA.hip](https://github.com/corvaeoboro/zenv/tree/master/hip/00_ALL_HDA)** click names below for tool example : ## CREATE ## | ______ | | | | :--- | :--- | :--- | |

| **[z GEN BRICKMAIN 01](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_BRICKMAIN_01)**|stone brick variation generator , creates set of low and hipoly for baking| |

| **[z GEN STAIRWAY](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_STAIRWAY)**|creates stairway made of bricks , optional guideline and collision avoidance| |

| **[z GEN STONE BRICK CIRCLE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_STONE_BRICK_CIRCLE)**|creates a circular brick section by even voronoi fracturing extruding toward center . applies noise and bevel to resemble stone| |

| **[z CURL LINES THEN PLACE SPIRALS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_CURL_LINES_THEN_PLACE_SPIRALS)**|creates curllines on the surface of mesh then copies spirals to the geometry with collision detection| |

| **[z GEN CIRCLES RADIATE PATTERN](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_CIRCLES_RADIATE_PATTERN)**|creates circular patterns inspired by Seigaiha . scatter circles , then radiate those circles outward while avoiding intersection by order or generation .| |

| **[z HELIX ALONG CURVE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_HELIX_ALONG_CURVE)**|creates multiple spiraling helix curves around input guide line| |

| **[z GEN ROCK THIRDS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_ROCK_THIRDS)**|creates a rock stylized by lot subdivision rule of thirds , setup for PDG| |

| **[z DIFFUSION REACTION TUBES](https://github.com/corvaeoboro/zenv/tree/master/hip/z_DIFFUSION_REACTION_TUBES)**|fill mesh with intestine brain like tubes based on simulated diffusion chemical reaction| |

| **[z CURL LINES LOOP](https://github.com/corvaeoboro/zenv/tree/master/hip/z_CURL_LINES_LOOP)**|creates lines curling on input mesh surface using curlnoise loop| |

| **[z DRIP GRUNGE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_DRIP_GRUNGE)**|drips grunge under overhangs , longer when near more drip neighboors| |

| **[z GEN REVOLVE BASIC](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_REVOLVE_BASIC)**|creates revolved mesh path deformed to backbone curve , input profile and backbone curves| |

| **[z WIRE OVERLAPING OFFSET](https://github.com/corvaeoboro/zenv/tree/master/hip/z_WIRE_OVERLAPING_OFFSET)**|creates wires from input curves rayed to ground collision offset near neighboor wires| |

| **[z GEN PILLAR](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_PILLAR)**|generate pillar - holding multiple brick generators and circle brick generators assembled to create a full pillar .| |

| **[z GEN ROCK 4m](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_ROCK_4m)**|creates a simple rock , with fractured surfacing| |

| **[z GEN TUBES FINDPATHS FROM CURVE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_TUBES_FINDPATHS_FROM_CURVE)**|creates tubes that find a path to not intersect other tubes following along the length of a guide curve| |

| **[z GEN CRACK BRANCHING](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_CRACK_BRANCHING)**|creates branching crack mesh used for booleaning other meshes| |

| **[z GEN GIZMO](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_GIZMO)**|axis gizmo for debug| |

| **[z GLASS BOOLEAN](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GLASS_BOOLEAN)**|input mesh with irregular shaped holes , creates an intersection plane cut to fit , adds inset with vertex color falloff from edge for shader| |

| **[z GEN LATTICE GRIDMESH](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_LATTICE_GRIDMESH)**|creates a box of grids with interior points ideal for use as a lattice deformer| |

| **[z GEN HEXA STRUCTURE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_HEXA_STRUCTURE)**|creates a hexagon support structure based on input mesh| |

| **[z GEN RUNES](https://github.com/corvaeoboro/zenv/tree/master/hip/z_GEN_RUNES)**|creates rune like symbols| ## PLANTS ## | ______ | | | | :--- | :--- | :--- | |

| **[z PLANTS HELIX ROOTS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_HELIX_ROOTS)**|create winding intertwined roots from a guide line .| |

| **[z PLANTS VINES W LEAVES](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_VINES_W_LEAVES)**|creates vines conforming to surface of object guided by line with iterative collision avoidance on vine and leaves| |

| **[z PLANTS MOSS HANGING](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_MOSS_HANGING)**|creates hanging placements of moss mesh| |

| **[z PLANTS VINES GUIDED](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_VINES_GUIDED)**|creates a vine tube using a wandering path finder guided variably by a curve or direction vector| |

| **[z PLANTS TREE PATHFIND](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_TREE_PATHFIND)**|creates tree using shortest path curves scattered connected around collision objects and self| |

| **[z PLANTS FUNGI](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_FUNGI)**|creates a fungus mushroom mesh| |

| **[z PLANTS LEAF](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_LEAF)**|creates a hipoly leaf mesh| |

| **[z PLANTS BARK](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_BARK)**|creates bark pieces for tree| |

| **[z PLANTS BARK PLACER](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_BARK_PLACER)**|layout bark on mesh surface guided by curves , smooth aligned , used with tree| |

| **[z PLANTS PETAL FORM](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_PETAL_FORM)**|creates petal from curve backbone and multiple warped elipse curves defining the shape changes over the length of the backbone| |

| **[z PLANTS SCATTER LEDGE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANTS_SCATTER_LEDGE)**|places hanging plants aligned along edges of input mesh with collision checks| ## ITEM ## | ______ | | | | :--- | :--- | :--- | |

| **[z ITEM ABILITY ICON](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_ABILITY_ICON)**|creates variety of icon of ability in TOPS by wedgenum| |

| **[z ITEM RING](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_RING)**|creates ring item variants , helix , diffusion tubes , rock gemstones , in TOPS by wedgenum| |

| **[z ITEM RING FROM IMAGE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_RING_FROM_IMAGE)**|creates a projected 3d ring from isometric image , setup for TOPs processing folder of images to 3d relit renders| |

| **[z ITEM SWORD](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_SWORD)**|creates sword item variants| |

| **[z ITEM SWORD FROM IMAGE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_SWORD_FROM_IMAGE)**|creates a sword mesh from image , traces , orients , thickens by skeleton , uvs projected , baked to vertex colors| |

| **[z ITEM HELM](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_HELM)**|creates variety of helm items in TOPS by wedgenum| |

| **[z ITEM HELM FROM IMAGE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_HELM_FROM_IMAGE)**|projects a helm mesh from image| |

| **[z ITEM POTION](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_POTION)**|creates potion item variants in TOPS by wedgenum| |

| **[z ITEM POTION FROM IMAGE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_POTION_FROM_IMAGE)**|revolves a potion mesh from image| |

| **[z ITEM BOW](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_BOW)**|creates bow item variants| |

| **[z ITEM STAFF](https://github.com/corvaeoboro/zenv/tree/master/hip/z_ITEM_STAFF)**|creates staff item variants| ## PATH ## | ______ | | | | :--- | :--- | :--- | |

| **[z PATH BASE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_BASE)**|creates a PATH floor section and collision , this is the base for all path snapmap variants| |

| **[z PATH LEDGE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_LEDGE)**|creates environment mesh for isometric snapmap pieces , used with PATH_BASE| |

| **[z PATH DIRECTIONS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_DIRECTIONS)**|cycle thru 90 degree rotations and mirrored variations . used with PATH toolset| |

| **[z PATH LEDGE CAVE STALAG](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_LEDGE_CAVE_STALAG)**|creates modular PATH cave for use with snapmap| |

| **[z PATH LEDGE DIFFUSION](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_LEDGE_DIFFUSION)**|creates modular PATH diffusion reaction for use with snapmap| |

| **[z PATH LEDGE FOREST](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_LEDGE_FOREST)**|creates modular PATH forest for use with snapmap| |

| **[z PATH LEDGE POOLS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_LEDGE_POOLS)**|creates modular PATH pools for use with snapmap| |

| **[z PATH REVIEW](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_REVIEW)**|layout path based meshes to review their connections| |

| **[z PATH 2SPLINE COLLISION](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_2SPLINE_COLLISION)**|input two curves defining the border of a path , creates floor geo and collision for gameplay| |

| **[z PATH ISO EXTRUDE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PATH_ISO_EXTRUDE)**|isometric camera angle extrude , for use with PATH to avoid camera blocking geo| ## LAYOUT ## | ______ | | | | :--- | :--- | :--- | |

| **[z COPY TO POINTS BY PIECENUM INTERSECTIONCHECK](https://github.com/corvaeoboro/zenv/tree/master/hip/z_COPY_TO_POINTS_BY_PIECENUM_INTERSECTIONCHECK)**|copy variants by piecenum attribute with collision checks| |

| **[z COPY MESH ALONG CURVE DEFORM](https://github.com/corvaeoboro/zenv/tree/master/hip/z_COPY_MESH_ALONG_CURVE_DEFORM)**|pipe / wire curvedeform for houdini engine . copies input mesh without stretching along a curve , adds cuts for smoother bending , projects normals outward from curve| |

| **[z COPY TO EVENLY DISTRIBUTED GRID](https://github.com/corvaeoboro/zenv/tree/master/hip/z_COPY_TO_EVENLY_DISTRIBUTED_GRID)**|copy by piecenum to dynamic evenly spaced grid - useful when baking and review| |

| **[z TILEABLE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_TILEABLE)**|copies input to each of the nearby quadrants preview tiling ( 4m default )| |

| **[z TRANSFORM ITERATE COLLISION CHECK](https://github.com/corvaeoboro/zenv/tree/master/hip/z_TRANSFORM_ITERATE_COLLISION_CHECK)**|iteratively move pieces towards nearest goal while avoid itersection with collision ( simplified gravity / attraction sop )| ## MODIFY ## | ______ | | | | :--- | :--- | :--- | |

| **[z VORONI FRACTURE GRADIENT OFFSET](https://github.com/corvaeoboro/zenv/tree/master/hip/z_VORONI_FRACTURE_GRADIENT_OFFSET)**|voronoi fractures then offsets clusters by multiple world space gradients . useful for rock and cliff forms .| |

| **[z DEFORM BY AXIS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_DEFORM_BY_AXIS)**|bounding box ramp deformation , by multiple axis ramps| |

| **[z NOISE DISPLACE MASKED](https://github.com/corvaeoboro/zenv/tree/master/hip/z_NOISE_DISPLACE_MASKED)**|3d noise ramp creates a mask remaping the displacement of mesh by a second 3d noise .| |

| **[z MESH CHIP CRACK](https://github.com/corvaeoboro/zenv/tree/master/hip/z_MESH_CHIP_CRACK)**|boolean subtract chipping and crack meshes onto the surface based on curvature and fitting projected crack meshes| |

| **[z MESH WRAP DEFORM BY UV](https://github.com/corvaeoboro/zenv/tree/master/hip/z_MESH_WRAP_DEFORM_BY_UV)**|deform mesh to another mesh by using the flattened UVs , useful to wrap a pattern around another| |

| **[z MESH SURFACE SIMPLE REMESH](https://github.com/corvaeoboro/zenv/tree/master/hip/z_MESH_SURFACE_SIMPLE_REMESH)**|ray projects a grid unto the input geo and remeshes then reduces , helpful for fixing chaotic geo and non manifold errors .| |

| **[z PLANARIZE MULTIPLE SURFACES](https://github.com/corvaeoboro/zenv/tree/master/hip/z_PLANARIZE_MULTIPLE_SURFACES)**|input mesh surface is segmented by avg n and flattened from multiple directions . useful to randomly planarize from different angles for rock meshes| |

| **[z CONFORM INTERSECTING LERP](https://github.com/corvaeoboro/zenv/tree/master/hip/z_CONFORM_INTERSECTING_LERP)**|conform around a given colllision object if has intersection| |

| **[z STAMP FOREACH PIECE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_STAMP_FOREACH_PIECE)**|randomized boolean of one mesh on to the surface of variants . useful for cutting designs into bricks| |

| **[z SPLIT CLIP CREVISE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_SPLIT_CLIP_CREVISE)**|separate the input into two outputs with an indent along the separation , useful separating environment shell into terraced layers| |

| **[z CUT INTERSECT DARKEN](https://github.com/corvaeoboro/zenv/tree/master/hip/z_CUT_INTERSECT_DARKEN)**|darken a surface from the intersections of other objects , with option to boolean those cuts in| |

| **[z DEFORM BY HELIX](https://github.com/corvaeoboro/zenv/tree/master/hip/z_DEFORM_BY_HELIX)**|deform the input mesh by a helix fit to the object bounds| |

| **[z MESH SUBTRACT COLLAPSE END](https://github.com/corvaeoboro/zenv/tree/master/hip/z_MESH_SUBTRACT_COLLAPSE_END)**|simple boolean subtract with option to collapse . useful for quick edits in ue4| |

| **[z MESH SLICER SAVE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_MESH_SLICER_SAVE)**|separates large meshes into grided sections and exports them to fbx , options for specific area exports , and compatible with houdini engine .| ## REMOVAL ## | ______ | | | | :--- | :--- | :--- | |

| **[z REMOVE PIECES BY VOLUME](https://github.com/corvaeoboro/zenv/tree/master/hip/z_REMOVE_PIECES_BY_VOLUME)**|for each connected element , remove if doesnt match min or max measured volume , also has options of perimeter or other measurements| |

| **[z KEEP ONLY LARGEST CONNECTED ELEMENT](https://github.com/corvaeoboro/zenv/tree/master/hip/z_KEEP_ONLY_LARGEST_CONNECTED_ELEMENT)**|removes smaller detached objects| |

| **[z KEEP BIGGER OF TWO](https://github.com/corvaeoboro/zenv/tree/master/hip/z_KEEP_BIGGER_OF_TWO)**|takes two inputs and ouputs only one ( bigger or smaller )| |

| **[z KEEP ONLY FIRST LAST PRIMS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_KEEP_ONLY_FIRST_LAST_PRIMS)**|carve for prim lines after segments split| |

| **[z REMOVE THIN MESH](https://github.com/corvaeoboro/zenv/tree/master/hip/z_REMOVE_THIN_MESH)**|removes prims based on thickness measurement , then can fill in holes , useful for removing thin slivers| ## UV ## | ______ | | | | :--- | :--- | :--- | |

| **[z UV AXIS ALIGN SNAP](https://github.com/corvaeoboro/zenv/tree/master/hip/z_UV_AXIS_ALIGN_SNAP)**|optimize uv location , moves uvs to zero to one space for precision in games| |

| **[z UV ALIGN WORLD](https://github.com/corvaeoboro/zenv/tree/master/hip/z_UV_ALIGN_WORLD)**|align uv islands to world axis| |

| **[z UV OVERLAP CHECK](https://github.com/corvaeoboro/zenv/tree/master/hip/z_UV_OVERLAP_CHECK)**|a slow tho absolute uv overlap check , by intersection checks , separates all overlaping prims, then repacks| |

| **[z UV TEXEL DENSITY CHECK](https://github.com/corvaeoboro/zenv/tree/master/hip/z_UV_TEXEL_DENSITY_CHECK)**|check texel density with colorized debug , handles multiple materials with different texture resolutions by specifiying the materials name string and their rez| |

| **[z UV POLYWIRE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_UV_POLYWIRE)**|creates polywire with specific UVs , useful when sweep is not producing desired bends| |

| **[z UV TRIM](https://github.com/corvaeoboro/zenv/tree/master/hip/z_UV_TRIM)**|fits uvs into specific trim sheet area while scaling the pieces along an axis relative to their world space| |

| **[z UV LIGHTMAP](https://github.com/corvaeoboro/zenv/tree/master/hip/z_UV_LIGHTMAP)**|UVs creation for lightmaps , stored to uv1 with higher merge threshold| ## MESH ## | ______ | | | | :--- | :--- | :--- | |

| **[z VDB INTERNAL FILL](https://github.com/corvaeoboro/zenv/tree/master/hip/z_VDB_INTERNAL_FILL)**|mesh to vdb to mesh , combines lower res eroded vdbs to fill in internal spaces , useful for airtight lowpoly| |

| **[z VOXEL AUTOSIZE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_VOXEL_AUTOSIZE)**|auto voxel resolution for target polycount , safely lowers resolution on large objects| |

| **[z EDGEGROUP BY UV AXIS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_EDGEGROUP_BY_UV_AXIS)**|edgegroup based on axis of uvs , useful for polybeveling specific edges procedurally| |

| **[z SHRINKWRAP VORONOI CLUSTERS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_SHRINKWRAP_VORONOI_CLUSTERS)**|similar to convex decomposition , cuts mesh into pieces via voronoi , shrinkwraps those pieces . useful for rocky shapes| |

| **[z REVERSE BY N UP](https://github.com/corvaeoboro/zenv/tree/master/hip/z_REVERSE_BY_N_UP)**|attempts to fix reversed backfacing normals on multiple sub meshes, useful for fixing exported levels with mirrored ( negative scaled ) objects| |

| **[z POLYREDUCE GRADIENT QUADS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_POLYREDUCE_GRADIENT_QUADS)**|polyreduce setup with gradient retention to keep mostly quads , with secondary reduction| |

| **[z REMESH RAY SPHERE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_REMESH_RAY_SPHERE)**|remesh using sphere around object , iteratively raycast and smooth to approximate shape| |

| **[z TUBE MESH BETWEEN TO CIRCLES](https://github.com/corvaeoboro/zenv/tree/master/hip/z_TUBE_MESH_BETWEEN_TO_CIRCLES)**|creates a cyllinder between 2 input circles| |

| **[z POLYBEVEL SAFE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_POLYBEVEL_SAFE)**|polybevel with fix for exploding points| |

| **[z POLYEXTRUDE SAFE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_POLYEXTRUDE_SAFE)**|polyextrude with fix for exploding points| ## LINES ## | ______ | | | | :--- | :--- | :--- | |

| **[z CURVE FROM TUBE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_CURVE_FROM_TUBE)**|centered curve from mesh ( even if mesh has nonuniform topology )| |

| **[z CURVES FROM UV ISLANDS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_CURVES_FROM_UV_ISLANDS)**|for each uv island create a line curve aligned by the longest angle or specific axis . useful for generating tree branch curves from existing low poly trees| |

| **[z MASK TO LINE](https://github.com/corvaeoboro/zenv/tree/master/hip/z_MASK_TO_LINE)**|creates line from image color| |

| **[z SORT BY LINEAXIS](https://github.com/corvaeoboro/zenv/tree/master/hip/z_SORT_BY_LINEAXIS)**|sorts a line contigously linearly along axis , enforcing a point order on a curved line when sort by axis may skip around| ## COLOR ## | ______ | | | | :--- | :--- | :--- | |

| **[z COLOR MASK VERTEX](https://github.com/corvaeoboro/zenv/tree/master/hip/z_COLOR_MASK_VERTEX)**|vertex color RGB mask for game shader . AO grunge , Variation , and localized gradients| |

| **[z COLOR NOISE HI](https://github.com/corvaeoboro/zenv/tree/master/hip/z_COLOR_NOISE_HI)**|colors based on curvature ramps , grunge moss for hi poly stones and bricks| |

| **[z COLOR LINES SCRATCH VTX](https://github.com/corvaeoboro/zenv/tree/master/hip/z_COLOR_LINES_SCRATCH_VTX)**|cuts in elipses and applys vertex colors for stratches along an axis| |

| **[z VERTEXCOLOR CONVERT](https://github.com/corvaeoboro/zenv/tree/master/hip/z_VERTEXCOLOR_CONVERT)**|converts standard rgb vertex color blending to multilayer vertex blending with alpha| ## MATERIAL ## | ______ | | | | :--- | :--- | :--- | |

| **[z UDIM CONVERT](https://github.com/corvaeoboro/zenv/tree/master/hip/z_UDIM_CONVERT)**|convert single material UDIM to multiple materials , and reposition the uvs into zero to one| ## NORMALS ## | ______ | | | | :--- | :--- | :--- | |

| **[z NORMAL AREA WEIGHTED](https://github.com/corvaeoboro/zenv/tree/master/hip/z_NORMAL_AREA_WEIGHTED)**|normals smoothed face area weighted alternative| |

| **[z SMOOTHING FROM UVs](https://github.com/corvaeoboro/zenv/tree/master/hip/z_SMOOTHING_FROM_UVs)**|hard edges by uv island for baking| ## QA ## | ______ | | | | :--- | :--- | :--- | |

| **[z COLLISION INTERSECT CHECK](https://github.com/corvaeoboro/zenv/tree/master/hip/z_COLLISION_INTERSECT_CHECK)**|detect and show intersections with provided collision geometry . useful to avoid clipping into level geometry beyond a specific distance threshold| ## TEXTURE ## | ______ | | | | :--- | :--- | :--- | |

| **[z TEX SEAM BLENDER](https://github.com/corvaeoboro/zenv/tree/master/hip/z_TEX_SEAM_BLENDER)**|blend and blur a texture across uv seams to fix small bake errors and make seamless , additionaly blends intersections of the meshes| ## VFX ## | ______ | | | | :--- | :--- | :--- | |

| **[z VFX SLASH from ANIM](https://github.com/corvaeoboro/zenv/tree/master/hip/z_VFX_SLASH_from_ANIM)**|creates a smoothed swipe mesh from animation for vfx , sword slashing| ## CAM ## | ______ | | | | :--- | :--- | :--- | |

| **[z CAM ISOMETRIC](https://github.com/corvaeoboro/zenv/tree/master/hip/z_CAM_ISOMETRIC)**|camera with crane\boom arm setup matching isometric game settings| |

| **[z CAM PROJECTION fspy](https://github.com/corvaeoboro/zenv/tree/master/hip/z_CAM_PROJECTION_fspy)**|a wrapper for fspy hda created by floodini , input fspy json creating camera matching ref image perspective then projects that image to floor plane| ## EXPORT ## | ______ | | | | :--- | :--- | :--- | |

| **[z EXPORT TO UNREAL](https://github.com/corvaeoboro/zenv/tree/master/hip/z_EXPORT_TO_UNREAL)**|applies unreal specific parameters = material parameter conversion , point color to vtx conversion| |

| **[z EXPORT MAYA FBX](https://github.com/corvaeoboro/zenv/tree/master/hip/z_EXPORT_MAYA_FBX)**|applies maya specific detail parameters = named uv channels , named color sets for vertex colors , uv1 to uv2 .| ## PYTHON ## - [HOUDINI_HDA_PLACE_ALL.py](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv/tree/master/python#houdini_hda_place_allpy) = for each hda in a folder creates hython script to place the nodes in houdini - [HOUDINI_PATH_TOPs_CREATE_SET.py](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv/tree/master/python#houdini_path_tops_create_setpy) = creates hython script to place TOP nodes for each PATH mesh component - [UNREAL_PATH_CREATE_SNAPMAPS.py](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv/tree/master/python#unreal_path_create_snapmapspy) = for each set of PATH meshes creates unreal map for each corresponding variant - [ZENV_GITHUB_DOC_GEN.py](https://github.com/CorvaeOboro/zenv/raw/master/ https://github.com/CorvaeOboro/zenv/tree/master/python#zenv_github_doc_genpy) = creates readme and docs from googlesheet and existing files ## RECOMMENDED LIBRARIES ## - SideFXLabs **[https://github.com/sideeffects/SideFXLabs](https://github.com/sideeffects/SideFXLabs)** - qLib **[https://github.com/qLab/qLib](https://github.com/qLab/qLib)** - MLOPs **[https://github.com/Bismuth-Consultancy-BV/MLOPs](https://github.com/Bismuth-Consultancy-BV/MLOPs)** - AeLib **[https://github.com/Aeoll/Aelib](https://github.com/Aeoll/Aelib)** - nLib **[https://github.com/Njordy/nLib](https://github.com/Njordy/nLib)** - mifthtools **[https://github.com/mifth/mifthtools](https://github.com/mifth/mifthtools)** - jhorikawa https://github.com/jhorikawa/HoudiniHowtos ## CREATIVE COMMONS ZERO ## free to all , [creative commons CC0](https://creativecommons.org/publicdomain/zero/1.0/) , free to redistribute , attribution not required