Blender Documentation: Last modified September 22 2003 S68
<<< Previous | Buttons Reference | Next >>>

# Material Buttons

The settings in this ButtonsWindow visualise the Material DataBlock. The MaterialButtons are only displayed if the active Object has a Material. Hotkey: F5.

The DataButtons in the Header indicate what Material block is visualised.

## Material Browse

Select another Material from the list provided, or create a new block.

## MA:

Give the current Material a new and unique name.

## Users

If the Material block is used by more than one Object, this button indicates the total number of users. Press the button to make the Material "Single User". An exact copy is created.

## Remove Link

Delete the link to the Material.

## Auto Name

Blender assigns a name to the Material.

## Copy to buffer

The complete contents of the Material and all the mapping is copied to a temporary buffer.

## Copy from buffer

The temporary buffer is copied to the Material.

## Preview settings.

## Plane

The preview plane only shows the X-Y coordinates.

## Sphere

In the sphere-preview the Z axis is the vertical axis for the preview sphere; the X and Y axes revolve around this axis.

## Cube

The cubic preview shows the material preview mapped on three sides of a cube, allowing to see the three possible mappings.

## Background

Use this button to select a light or a dark background.

## Refresh

Use this button to refresh the material-preview. This is mostly needed after changing frames while having a material-Ipo.

These buttons specify what the Material block is linked to, or must be linked to. By linking Materials directly to Objects, each Object is rendered in its own Material.

## ME:

This Button indicates the block to which the Material is linked. This button can only be used to give the block another name. Possible blocks are:

- ME: Material is linked to a Mesh (ObData) block.

- CU: Material is linked to a Curve, Surface or Font (ObData) block.

- MB: Material is linked to a MetaBall (ObData) block.

- OB: Material is linked to the Object itself.

## OB

Use this button to link the current Material to the Object. Any link to the ObData block remains in effect. Links can be removed with the Header button:

## "Remove Link" ME or CU or MB

Use this button to link the current Material to the ObData of the Object. Any link to the Object block remains in effect. Links can be removed with the Header button: "Remove Link"

## 1 Mat 1

An Object or ObData block may have more than one Material. This button can be used to specify which of the Materials must be displayed, i.e. which Material is active. The first digit indicates how many Materials there are; the second digit indicates the number of the active Material. Each face in a Mesh has a corresponding number: the 'Material index'. The number of indices can be specified with the EditButtons. Curves and Surfaces also have Material indices.

## RGB

Most colour sliders in Blender have two pre-set options: in this case, the colour is created by mixing Red, Green, Blue.

## HSV

The colour sliders mix colour with the Hue, Saturation, Value system. 'Hue' determines the colour, 'Saturation' determines the amount of colour in relation to grey and 'Value' determines the light intensity of the colour.

## DYN

Adjust parameters for the dynamics optons. The following buttons specify what type of color is visualised in the sliders:

## Mir

The mirror colour of the Material. This affects a environment or reflection map.

## Spec

Specularity, the colour of the sheen.

## Color

The basic colour of the Material.

## R, G, B

These mix the colour specified.

## Ref

Reflectivity. The degree to which the Material reflects the basic colour when light falls on it.

## Alpha

The degree of coverage, which can be used to make Materials transparent. Use the option "ZTransp" to specify that multiple transparent layers can exist. Without this option, only the Material itself is rendered, no matter what faces lie behind it. The transparent information is saved in an alpha layer, which can be saved as part of a picture (see DisplayButtons).

## Emit

The Material 'emits light', without shedding light on other faces of course.

## Ambient

The degree to which the global Ambient colour is applied, a simple form of environmental light. The global Ambient can be specified in the World block, using the WorldButtons. Ambient is useful for giving the total rendering a softer, more coloured atmosphere.

## Zoffset

This button allows you to give the face to be rendered an artificial forward offset in Blender's Zbuffer system. This only applies to Materials with the option "ZTransp". This option is used to place cartoon figures on a 3D floor as images with alpha. To prevent the figures from 'floating', the feet and the shadows drawn must be placed partially beneath the floor. The Zoffset option then ensures that the entire figure is displayed. This system offers numerous other applications for giving (flat) images of spatial objects the appropriate 3D placement.

## Spec

The degree of sheen (specularity) the material has.

## Hard

The hardness of the specularity. A large value gives a hard, concentrated sheen, like that of a billiard ball. A low value gives a metallic sheen.

## SpTr

This button makes areas of the Material with a sheen opaque. It can be used to give transparent Materials a 'glass' effect.

## Add

This option adds some kind of glow to transparent objects, but only works with the unified renderer.

## TexFace

A texture assigned with the UVEditor gives the color information for the faces.

## NoMist

The Material is insensitive to "Mist" (see WorldButtons).

## Traceable

This term stems from Blender's ray-trace past. It specifies whether or not shadow lamps can 'see' the current Material. Turn the "Traceble" option OFF to prevent undesired shadows.

## Shadow

This button determines whether the Material can receive a shadow, i.e. whether a shadow calculation is needed.

## Shadeless

This button makes the Material insensitive to light or shadow.

## Wire

Only the edges of faces are rendered (normal rendering!). This results in an exterior that resembles a wire frame. This option can only be used for Meshes.

## VCol Light

If the Mesh vertex has colours (see EditButtons), they are added to the Material as extra light. The colours also remain visible without lamps. Use this option to render radiosity-like models.

## VCol Paint

If the Mesh vertex has colours, this button replaces the basic colour of the Material with these colours. Now light must shine on the Material before you can see it. < point>Halo (TogBut) Instead of rendering the faces, each vertex is rendered as a halo. The lens flare effect is a part of the halo. This option change certain MaterialButtons (see the following section).

## ZTransp

Transitional Zbuffers can only render opaque faces. Blender uses a modified method to Zbuffer transparent faces. This method requires more memory and calculation time than the normal Zbuffer, which is why the two systems are used alongside each other.

## Zinvert

The Material is rendered with an inverse Zbuffer method; front and back are switched.

## Env

Environment option. The Material is not rendered and the Zbuffer and render buffers are 'erased' so that the pixel is delivered with Alpha = 0.0.

## OnlyShadow

This option determines the alpha for transparent Materials based on the degree of shadow. Without a shadow the Material is not visible.

## Texture name

A Material has eight channels to which Textures can be linked. Each channel has its own mapping, which is the effect the texture has on the material.

## Copy to buffer

The complete mapping settings are copied to a temporary buffer.

## Copy from buffer

The contents of the temporary buffer are copied to the mapping settings.

## SepT

Separate Textures. This option forces only the current channel to be rendered with its corresponding Texture.

## Mapping: coordinates as input.

Each Texture has a 3D coordinate (the texture coordinate) as input. The starting point is generally the global coordinate of the 3D point that can be seen in the pixel to be rendered. A Material has the following Mapping options:

## UV

The U-V coordinates of a face or Nurbs surface from an Object make up the texture coordinates. U-V is a commonly used term for specifying the mathematical space of a flat or curved surface.

## Object

Every Object in Blender can be used as a source for texture coordinates. For this, the Object's inverse transformation is applied to the global coordinate, which gives the local Object coordinate. This links the texture to the position, dimension and rotation of the Object. Generally, an Empty Object is used to specify the exact location of a Texture, e.g. to place a logo on the body of an airplane. Another commonly used approach is to have the 'Texture Object' move to achieve an animated texture.

## Object Name

The name of the Object used for the texture coordinates. If the Object does not exist, the button remains empty.

## Glob

The global coordinate is passed on to the texture.

## Orco

The standard setting. This is the original coordinate of the Mesh or another ObData block.

## Stick

Sticky texture. Blender allows you to assign a texture coordinate to Meshes, which is derived from the manner in which the Camera view sees the Mesh. The screen coordinate (only X,Y) for each vertex is calculated and saved in the Mesh. This makes it appear as if the texture is projected from the Camera; the texture becomes "sticky" (see also "Make Sticky" in the EditButtons). Use "Sticky" to precisely match a 3D object with an Image Texture. Special morphing effects can also be achieved.

## Win

The screen coordinate (X,Y) is used as a texture coordinate. Use this method to achieve 2D layering of different Images.

## Nor

The normal vector of the rendered face is used as a texture coordinate. Use this method to achieve reflection mapping, which is the suggestion of mirroring using a specially pre-calculated Image.

## Refl

The reflection vector of the rendered face is used as a texture coordinate. This vector points in a direction that makes the face appear to be mirrored. Use this option to suggest a reflected surface with procedural textures such as "Marble" or "Clouds" and of course for the use with the EnvMap texture.

## Mapping: transform coordinates.

Use these buttons to more finely adjust the texture coordinate.

## dX, dY, dZ

The extra translation of the texture coordinate. sizeX, sizeY, sizeZ (NumBut) The extra scaling of the texture coordinate.

## Mapping: 3D to 2D

For Image Textures only; this determines the manner is which the 3D coordinate is converted to 2D.

## Flat

The X and Y coordinates are used directly.

## Cube

Depending on the normal vector of the face, the X-Y or the X-Z or the Y-Z coordinates are selected. This option works well for stones, marbles and other regular textures,

## Tube

This creates a tube-shaped mapping. The Z axis becomes the central axis, X and Y revolve around it.

## Sphere

This causes a sphere-shaped mapping. The Z axis becomes the central axis, X and Y revolve around it.

## Mapping: switch coordinates.

The three rows of buttons indicate the new X, Y and Z coordinates. Normally, the X is mapped to X, the Y to Y and Z to Z. The first button switches a coordinate completely off.

## Texture Block

## TE:

The name of the Texture block. The name can be changed with this button. Texture Browse (MenuBut) Select an existing Texture from the list provided, or create a new Texture Block.

## Clear

The link to the Texture is erased.

## Users

If the Texture Block has multiple users, this button displays the total number of users. Press the button to make the Texture "Single User". An exact copy is made.

## Auto Name

Blender assigns a name to the Texture.

## Mapping: Texture input settings.

These buttons pass extra information to the Texture.

## Stencil

Normally, textures are executed one after the other and laid over one another. A second Texture channel can completely replace the first. With this option, the mapping goes into stencil mode. No subsequent Texture can have an effect on the area the current Texture affects.

## Neg

The effect of the Texture is reversed.

## RGBtoInt

With this option, an RGB texture (affects colour) is used as an Intensity texture (affects a value).

## R, G, B

The colour with which an Intensity texture blends with the current colour.

## DVar

The value with which the Intensity texture blends with the current value.

## Mapping: output to.

## Col

The texture affects the basic colour of the material.

## Nor

The texture affects the rendered normal. Only important for Image textures. The "Stucci" texture does this itself.

## Csp

The texture affects the specularity colour of the material.

## Cmir

The texture affects the mirror colour of the material, filtered with Mir-RGB sliders.

## Ref

The texture affects the value of the material's reflectivity. There are three settings; the third setting reverses the effect

## Spec

The texture affects the value of specularity of the material. There are three settings.

## Hard

The texture affects the hardness value of the material. There are three settings.

## Alpha

The texture affects the alpha value of the material. There are three settings.

## Emit

The texture affects the "Emit" value of the material. There are settings.

## Mapping: output settings.

These buttons change the output of the Texture.

## Mix

The Texture blends the values or colour.

## Mul

The Texture multiplies values or colour.

## Add

The Texture adds the values or colour.

## Sub

The Texture subtracts values or colour.

## Col

The extent to which the texture affects colour.

## Nor

The extent to which the texture affects the normal (not important here).

## Var

The extent to which the texture affects a value (a variable).

## The MaterialButtons, Halos

If a Material has the option "Halo" ON, a number of buttons change to specific halo settings. Lens flares can also be created here. Halos are rendered on the 3D location of the vertices. These are small, transparent round spots or pictures over which circles and lines can be drawn. They take Blender's Zbuffer into account; like any 3D element, they can simply disappear behind a face in the forefront.

Halos are placed over the currently rendered background as a separate layer, or they give information to the alpha layer, allowing halos to be processed as a post-process.

Only Meshes and Particle Effects can have halos. A Mesh with a halo is displayed differently in the 3DWindow; with small dots at the position of the vertices. Halos cannot be combined with 'ordinary' faces within one Mesh. Only one Material can be used per 'halo' Mesh.

### Flare

Each halo is now also rendered as a lens flare. This effect suggests the reflections that occur in a camera lens if a strong light source shines on it. A Flare consists of three layers:

- the ordinary halo, which has a 3D location, and can thus disappear behind a face.

- the basic Flare, which is the same halo, but possibly with other dimensions. This is placed over the entire rendering as a post-process.

- the sub Flares, multi-coloured dots and circles, that are also placed over the entire rendering as a post-process.

The "HaloSize" value not only determines the dimensions, but is also used to determine the visibility - and thus the strength - of the Flare rendered in the post-process. This way, a Flare that disappears slowly behind a face will decrease in size at a corresponding speed and gradually go out.

### Rings

Determines whether rings are rendered over the basic halo.

### Lines

Determines whether star-shaped lines are rendered over the basic halo.

### Star

Instead of being rendered as a circle, the basic halo is rendered in the shape of a star. The NumBut "Star" determines the number of points the star has.

### Halo

Turn this option OFF to return to a normal Material.

### HaloTex

Halos can be given textures in two ways:

- "HaloTex" OFF: the basic colour of each halo is determined by the texture coordinate of the halo-vertex.

- "HaloTex" ON: each halo gets a complete texture area, in which, for example, an Image texture is displayed completely in each basic halo rendered.

### HaloPuno

The vertex normal ("Puno" in Blender's turbo language) is used to help specify the dimension of the halo. Normals that point directly at the Camera are the largest; halos with a normal that point to the rear are not rendered. If there are no vertex normals in the Mesh (the Mesh only consists of vertices) the normalised local coordinate of the vertex is used as the normal.

### XAlpha

Extreme Alpha. Halos can 'emit light'; they can add colour. This cannot be expressed with a normal alpha. Use this option to force a stronger progression in the alpha.

### Ring

With this option ON, the colour of the rings can be mixed with the RGB sliders.

### Line

With this option ON, the colour of the lines can be mixed with the RGB sliders.

### Halo

With this option ON, the colour of the basic halo can be mixed with the RGB sliders.

### R, G, B

Use these sliders to mix the indicated colour.

### HaloSize

The dimension of the halo.

### Alpha

The degree of coverage of the halo.

### Hard

The hardness of the halo, a large value gives a strong, concentrated progression.

### Add

Normally, the colour of halos is calculated during rendering, giving a light emitting effect. Set the "Add" value to 0.0 to switch this off and make black or 'solid' halos possible as well.

### Rings

The number of rings rendered over the basic halo.

### Lines

The number of star-shaped lines rendered over the basic halo.

### Star

The number of points on the star-shaped basic halo.

### Seed

'Random' values are selected for the dimension of the rings and the location of the lines based on a fixed table. "Seed" determines an offset in the table.

### FlareSize

The factor by which the post-process basic Flare is larger than the halo.

### SubSize

The dimension of post-process sub Flares, multicolured dots and circles.

### FlareBoost

This gives the Flare extra strength.

### Fl.seed

The dimension and shape of the sub Flares is determined by a fixed table with 'random' values. "Fl.seed" specifes an offset in the table.

### Flares

The number of sub Flares.

<<< Previous | Home | Next >>>
LampButtons | Up | The TextureButtons