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    Alessandro Passariello
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    Enciclopedia dei modificatori

    tratto da http://www.blenderguru.com/articles/blender-101-modifier-encyclopedia/

    by Anderson Baptisa

    Ahh the ever growing modifier panel. There’s some that we use everyday, and others we don’t go near since we’ve never understood what they actually do!

    Which is why I’ve spent the last month, trying out every single modifier and creating examples for each…

    Modifiers in Blender

    So let’s tackle each one (starting from left to right).

    The Modify group

    Mesh Cache

    What it does:

    Applies animations from external files to your objects.

    Why use it?

    To transfer a completely rigged character to another 3D application, bake an animation to disk and then play the results (like importing a realflow animation into Blender), or for re-using animations across other meshes like a stadium crowd for example.

    point_cache

     

    UV Project

    What it does:

    Dynamically changes the UV coordinates to an object.

    Why use it?

    Once setup, it allows the user to quickly adjust a texture with a proxy (empty) object. (Unfortunately it is not available for Cycles yet. Sep/14)

    uv_project

     

    UV Warp

    What it does:

    Moving the existing UV coordinates from one object place to another.

    Why use it?

    Can be used for animations like text scrolling on a billboard.

    uv_warp

     

    Vertex Weight Edit

    What it does:

    Allows the artist to animate or customize the weight of a vertex group.

    Why use it?

    If you’re using a feature that is accessing a vertex groups (like a particle system), then this modifier will allow you fine tune it’s effect or even animate it’s influence.

    vertex_weight_edit

     

    Vertex Weight Mix

    What it does:

    This modifier allows you to mix the influence of two vertex groups.

    Why use it?

    With this you can add vertex group A + vertex group B with variable strength to use both on a single modifier.

    vertex_weight_mix

     

    Vertex Weight Proximity

    What it does:

    Controls the weight of vertex groups based on the distance of an object.

    Why use it?

    It could be used to animate parts of an object melting based on the distance to a flame.

    vertex_weight_proximity

    The ‘Generate’ group

    Array

    What it does:

    Makes repeating instances of the mesh.

    Why use it?

    Used commonly to make things with repeating geometry, like a brick wall or street lamps along a street.

    array

     

    Bevel

    What it does:

    Adds a bevel or chamfer to all the edges or vertices of a mesh.

    Why use it?

    Since no object in the real world object has a perfectly sharp edge this modifier adds realism by making the edge slightly chamferred.

    bevel

     

    Boolean

    What it does:

    Unite, subtract or intersect the geometry multiple objects.

    Why use it?

    Can be a time saver in modeling complex shapes, but it really shines in animations like an “invisible” door opening up on a wall.

    boolean

    Build

    What it does:

    Constructs (or deconstructs) your mesh, element by element.

    Why use it?

    Together with some material effects you can achieve a really cool animation of a laser building an object.

    build

    Decimate

    What it does:

    Reduces the amount of geometry on your mesh using different algorithms.

    Why use it?

    You can set a lower resolution mesh of your objects for physics simulations or optimize your scene, decimating objects that are far away from the rendering camera.

    decimate

    Edge Split

    What it does:

    Turn smoothed edges into sharp corners based on their adjacent faces angle.

    Why use it?

    For creating sharp edges with the smooth shader on, without the ugly artifacts.

    edgesplit

     

    Mask

    What it does:

    Hides/shows parts of your mesh based on vertex groups.

    Why use it?

    Useful when modeling a complex scene and you want to focus on one part of the mesh.

    mask

    Mirror

    What it does:

    Mirrors your mesh along any axis.

    Why use it?

    Saves time when modelling perfectly symmetrical objects like characters or cars, as you only need to model one side.

    mirror

     

    Multiresolution

    What it does:

    Subdivides your mesh and allows you to sculpt more details on each level.

    Why use it?

    Commonly used when sculpting a character as it allows you to sculpt detail on each level of a subdivision and go back and forth.

    multiresolution

     

    Remesh

    What it does:

    Mesh reconstruction algorithm.

    Why use it?

    Useful with problematic meshes that have issues like too many triangles or faces that are too thin and elongated. Meshes like this tend to present artifacts when deforming or subdividing.

    remesh

     

    Screw

    What it does:

    Stretches a mesh in a revolving shape.

    Why use it?

    It can be used to make a vase or other circular meshes out of a simple profile string of vertices.

    screw

     

    Skin

    What it does:

    Creates a skin mesh using the edges of an object.

    Why use it?

    Useful for quickly creating a base mesh of a creature, using just strings of vertices.

    skin

     

    Solidify

    What it does:

    Adds thickness to faces.

    Why use it?

    Useful for making models hollow for 3D printing. Also for fragments in an explosion where each part needs to look dense instead of like paper.

    solidify

     

    Subdivision Surface

    What it does:

    Subdivides your geometry for a denser, smoother mesh.

    Why use it?

    Keeps your mesh clean and low poly, whilst giving you the freedom to increase or decrease the detail for your render.

    subdivision

     

    Triangulate

    What it does:

    Converts any type of polygon or n-gon into triangles.

    Why use it?

    For exporting your model to a game engine where you’ll need triangular faces instead of quads.

    triangulate

     

    Wireframe

    What it does:

    Converts all the faces to a renderable wireframe mesh.

    Why use it?

    Useful for showing off the actual geometry of an object, like for a demoreel or portfolio.

    wireframe

    The ‘Deform’ group

    Armature

     What it does:

    Deforms your object with the use of bones.

    Why use it?

    Just like in real life, the bones and tendons in our bodies are what deforms our skin and muscles. If you need to animate an organic character, this is the way to go.

    armature

    Cast

    What it does:

    Deforms your mesh into a sphere, cylinder or box shape.

    Why use it?

    For creating interesting morphing animations between geometric shapes (great for motion graphics).

    cast

     

    Curve

    What it does:

    Conforms your object to a curve shape.

    Why use it?

    To deform any object into the shape of a curve. Like a snake, chain links, or a cartoon bus making a tight curve.

    curve

     

    Displace

    What it does:

    Deforms your object with the use of a texture map.

    Why use it?

    Extremely useful for creating realistic materials, by taking an image texture, making a displacement map then using it to change the geometry. As seen here.

    displace

    Hook

    What it does:

    Grab vertices from another object when one interacts with it.

    Why use it?

    You can animate one object pulling or pushing parts of another object. Think of a piece of gum on the sidewalk when someone steps in it and stretches it out.

    hook

    Laplacian Smooth

    What it does:

    Smoothing algorithm that removes ‘noise’ from the geometry object while trying to keep its overall shape.

    Why use it?

    Especially useful for scanned data that might present noise in the mesh surface. You may also achieve an erosion effect on your mesh by playing with its parameters.

    laplacian_smooth

     

    Laplacian Deform

    What it does:

    Manipulate portions of your mesh while the algorithm tries to keep the overall details and shape.

    Why use it?

    Repose your character without having to create bones, assigning vertex weights, etc… Also comes in handy for stretchy exaggerated poses on cartoon characters.

    laplacian_deform

    Lattice

    What it does:

    Deforms your mesh using a lattice (cage) object.

    Why use it?

    For deforming the overall shape of your object, simulating stretches, squashes or bends…

    lattice

     

    Mesh Deform

    What it does:

    Deforms your mesh using any other mesh as the cage, instead of the standard cube shaped lattice.

    Why use it?

    Really useful for all kinds for deformations. Pixar also uses this method on many of their stretchy cartoon characters.

    meshdeform

     

    Shrinkwrap

    What it does:

    Deforms your object to wrap around another object.

    Why use it?

    Conform a spline to the geometry of another shape. Like a road across a terrain.

    shrinkwrap

     

    Simple Deform

    What it does:

    Simple deformations of an object like Twist, Bend, Taper and Stretch.

    Why use it?

    Create interesting animations using basic deformations.

    simpledeform

     

    Smooth

    What it does:

    Smooths out the overall geometry but unlike the Laplacian Smooth; this will not try to retain the overall shape of your mesh.

    Why use it?

    For vastly smoothing out the geometry of an object.

    smooth

     

    Warp

    What it does:

    Warp a portion of a mesh from one point to another.

    Why use it?

    For animations where part of an object needs to stretch to another point in space.

    wrap

     

    Wave

    What it does:

    Deforms your objects using wave like oscillations.

    Why use it?

    Useful for adding simple wind effects to an object, without having to use a complex cloth simulator.

    wave

     

    The ‘Simulate’ group

    Cloth

    What it does:

    Simulates the realworld effect of fabric.

    Why use it?

    For simulating various types of fabric, from silk to denim.

    cloth

     

    Collision

    What it does:

    Used in conjunction with other simulations, to make an object collide with others.

    Why use it?

    When your simulation needs to interact with another object. Like sparks (particles) bouncing off the floor.

    colision

     

    Dynamic Paint

    What it does:

    Makes objects paint each other when they collide.

    Why use it?

    Multiple uses like; footsteps in the snow, rain hitting the pavement, fire burning a wall etc.

    dynamic_paint

     

    Explode

    What it does:

    Explodes your mesh into separate pieces. Must be used in conjunction with a particle system.

    Why use it?

    For animations of an object disintegrating or exploding.

    explode

     

    Fluid Simulation

    What it does:

    Simulates the real world effects of fluids.

    Why use it?

    For simulating fluid to the real world size of 10 meters (max). Do not use for large bodies like lakes or oceans (use the Ocean Modifier instead).

    fluid

     

    Ocean

    What it does:

    For simulating large bodies of water like a lake or an ocean.

    Why use it?

    When you want to simulate simple water surface effects on a large body of water.

    ocean

     

    Particle Instance

    What it does:

    Works together with a particle system mixing different meshes depending on the particle state (birth, life, death).

    Why use it?

    For switching a mesh with another from when it’s born to when it dies. You can also use this modifier to spawn particle trails from emitted particles.

    particles_instance

     

    Particle System

    What it does:

    Creates particles that can be ’emitted’ (thrown) from an object, particle instances that remain stationary or hair.

    Why use it?

    Multitude of uses: a comet emitting a trail of debris, trees distributed across the ground or using the hair type particles to create hair, fur or grass.

    particle

     

    Smoke

    What it does:

    Simulates the real world effects of smoke or fire.

    Why use it?

    For creating a simple smoking object, a fire or both.

    smoke

     

    Soft Body

    What it does:

    Makes the mesh (or part of the mesh) behave like jelly; wobble, stretch and be affected by gravity.

    Why use it?

    Retains the original shape of the mesh, but makes it soft and able to collide with others. Also useful when part of a character needs to ‘jiggle’.

    softbody

     


    Associazione Blender Italia

    http://www.associazione.blender.it

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