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jit.gl.texture Reference

Create OpenGL textures

jit.gl.texture

Description

Creates OpenGL textures - buffers of image data used in drawing 3D geometry. jit.gl.texture is similar to jit.matrix except that textures reside on the graphics card.

Examples

Discussion

This object requires one argument: the name of a drawing context. A named drawing context is a named instance of a jit.window, jit.pwindow, or jit.matrix object that has an instance of the jit.gl.render object associated with it. Additionally it can reference the name of a jit.gl.node sub-context. This value may also be set via the OB3D drawto attribute. If no argument is present, the object is implicitly added to the first valid drawing context or sub-context found in the current patch or by searching up the patcher hierarchy.

Attributes

adapt [int]

Enable adapt to input (default = 1). When enabled the texture output dimensions will match the input dimensions.

anisotropy [int]

Anisotropic filter width (default = 0). Anisotropic filtering is an advanced filtering technique that takes multiple samples and blends the results together. Using anisotropy requires rectangle mode disabled.

autoclear [int]

Auto-clear texture during capture

autoscale [int]

Auto-scale texture coordinates

autotype [symbol]

g/s(get)

Returns the actual texture type used when type is auto (adapting to input).

bordercolor [4 floats]

Texture border color

colormode [symbol]

Texture color mode Possible values:

'auto'
'alpha'
'depth'
'intensity'
'luminance'
'lumalpha'
'rgb'
'argb'
'uyvy'
'srgb'
'srgba'

compare_func [symbol]

Shadow mapping comparison function Possible values:

'lequal'
'gequal'
'less'
'greater'
'equal'
'notequal'
'always'
'never'

compare_mode [symbol]

Shadow mapping comparison mode Possible values:

'none'
'compare_r_to_texture'

defaultimage [symbol]

Texture default image Possible values:

'checker'
'black'
'white'

dim [3 ints]

The texture dimensions when adapt is disabled (default = 256 256 0)

dstdimend [3 ints]

Matrix destination dimension end position. Used when submitting a subtexture via the subtex_matrix message.

dstdimstart [3 ints]

Matrix destination dimension start position. Used when submitting a subtexture via the subtex_matrix message.

erase_color [4 floats]

Capture erase color

file [symbol]

Image or file to load

filter [symbol]

Texture filter mode (default = linear) Possible values:

'none'
'nearest'
'linear'

flip [int]

Flip texture

level [int]

Mipmap Level

mipmap [symbol]

Enable mipmap interpolation (default = none). Mipmap interpolation is used for minification filtering (meaning the area of the fragment in texture space is larger than a texel). Using mipmap interpolation requires rectangle mode disabled. Possible values:

'none'
'nearest'
'linear'
'bilinear'
'trilinear'

rectangle [int]

Enable texture rectangle mode (default = 1). When enabled the internal GL texture is treated as a rectangular texture, and must be referenced using sampler2DRect and sampled using texture2DRect when sampled from a GLSL shader. When disabled the texture dimensions are upsampled to the nearest power of two value, and must be referenced and sampled using sampler2D and texture2D. Certain texture attributes and GLSL effects require rectangle mode disabled.

thru [int]

Enable thru mode (default = 1). When the flag is set, texture output is sent whenever input is received.

slice [int]

3D Texture Slice

srcdimend [3 ints]

Matrix source dimension end position. Used when submitting a subtexture via the subtex_matrix message.

srcdimstart [3 ints]

Matrix source dimension start position. Used when submitting a subtexture via the subtex_matrix message.

type [symbol]

The texture data type (default = auto). When type is auto the type is set by the input texture or matrix type. If the texture is the target of a capture operation, auto defaults to char . Possible values:

'auto' ( Adapt to input data type )
'char' ( 8bit unsigned byte )
'long' ( 32bit integer )
'half' ( 16bit float )
'float' ( 32bit float )
'float16' ( 16bit float )
'float32' ( 32bit float )

usedstdim [int]

Enable matrix destination dimension

usesrcdim [int]

Enable matrix source dimension

wrap [3 symbols]

Texture wrap mode Possible values:

'clamp'
'repeat'
'clampedge'
'clampborder'
'mirroredrepeat'

Common Box Attributes

annotation [symbol]

Sets the text that will be displayed in the Clue window when the user moves the mouse over the object.

background [int] (default: 0)

Adds or removes the object from the patcher's background layer. background 1 adds the object to the background layer, background 0 removes it. Objects in the background layer are shown behind all objects in the default foreground layer.

color [4 floats]

Sets the color for the object box outline.

fontface [int]

Sets the type style used by the object. The options are:

plain
bold
italic
bold italic Possible values:

0 = 'regular'
1 = 'bold'
2 = 'italic'
3 = 'bold italic'

fontname [symbol]

Sets the object's font.

fontsize [float]

Sets the object's font size (in points). Possible values:

'8'
'9'
'10'
'11'
'12'
'13'
'14'
'16'
'18'
'20'
'24'
'30'
'36'
'48'
'64'
'72'

hidden [int] (default: 0)

Toggles whether an object is hidden when the patcher is locked.

hint [symbol]

Sets the text that will be displayed in as a pop-up hint when the user moves the mouse over the object in a locked patcher.

ignoreclick [int] (default: 0)

Toggles whether an object ignores mouse clicks in a locked patcher.

jspainterfile [symbol]

JS Painter File

patching_rect [4 floats] (default: 0. 0. 100. 0.)

Sets the position and size of the object in the patcher window.

position [2 floats]

g/s(set)

Sets the object's x and y position in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its size unchanged.

presentation [int] (default: 0)

Sets whether an object belongs to the patcher's presentation.

presentation_rect [4 floats] (default: 0. 0. 0. 0.)

Sets the x and y position and width and height of the object in the patcher's presentation, leaving its patching position unchanged.

rect [4 floats]

g/s(set)

Sets the x and y position and width and height of the object in both patching and presentation modes (if the object belongs to its patcher's presentation).

size [2 floats]

g/s(set)

Sets the object's width and height in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its position unchanged.

textcolor [4 floats]

Sets the color for the object's text in RGBA format.

textjustification [int]

Sets the justification for the object's text. Possible values:

0 = 'left'
1 = 'center'
2 = 'right'

varname [symbol]

Sets the patcher's scripting name, which can be used to address the object by name in pattr, scripting messages to thispatcher, and the js object.

OB3D Attributes

automatic [int]

Automatic rendering flag (default = 1) When the flag is set, rendering occurs when the associated jit.gl.render object receives a bang message

drawto [symbol]

The named drawing context in which to draw (default = none) A named drawing context is a named instance of a jit.window, jit.pwindow, or jit.matrix object that has an instance of the jit.gl.render object associated with it.

enable [int]

Enable flag (default = 1) When the flag is set, drawing is enabled.

layer [int]

Object layer number (default = 0) When in automatic mode, the layer number determines the rendering order (low to high). Objects in the same layer have no guarantee which will be rendered first.

name [symbol]

The instance name (default = UID)

shader [symbol]

The name of the shader to be applied (default = none)

Messages

(drag)

Drag and drop a compatible media file onto the object to load it.

begin_capture

Start texture capture

bind

Bind the texture

end_capture

End texture capture

read

Arguments

filename [symbol]
Load image into texture

subtex_matrix

Submit a matrix as a subtexture. See the subtex.3d example patch for a demonstration.

tomatrix

Arguments

name [symbol]
Update the named jit.matrix with the texture

unbind

Unbind the texture

OB3D Messages

bang

Equivalent to the draw message.

draw

Draws the object in the named drawing destination. If the matrixoutput attribute is supported and set to 1, the geometry matrices are sent out the object's left outlet.

drawraw

Equivalent to draw with the inherit_all attribute set to 1.

drawimmediate

Equivalent to draw but ignoring any potential renderer setup

jit_gl_texture

Arguments

texture-name [symbol]
Binds the texture specified by texture-name to this object. Equivalent to setting the texture attribute to texture-name .

get_shader

Open an editor window containing the object's current JXS shader.

See Also

Name Description
Working with Video in Jitter Working with Video in Jitter
Working with OpenGL Working with OpenGL
Video and Graphics Programming Tutorials Video and Graphics Programming Tutorials
jit.gl.graph Graph floats into 3D space
jit.gl.gridshape Generate simple geometric shapes as a grid
jit.gl.handle Use mouse movement to control position/rotation
jit.gl.isosurf Generate a GL based surface extraction
jit.gl.mesh Generate GL geometry from matrices
jit.gl.model Read and draw various 3D model formats
jit.gl.nurbs Generate NURBS surface
jit.gl.plato Generate platonic solids
jit.gl.render Render Jitter OpenGL objects
jit.gl.shader Manage a GL shader
jit.gl.sketch Use drawing commands with OpenGL
jit.gl.slab Process texture data
jit.gl.text2d Render bitmap text
jit.gl.text3d Render vector text
jit.gl.videoplane Display video in OpenGL
jit.gl.volume Create a volume visualization
Tutorial 42: Slab: Data Processing on the GPU Tutorial 42: Slab: Data Processing on the GPU