Global

Members

(readonly) _OBJisLoading

Indicates if an object is currently loading or not. True when loading, otherwise false.
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(readonly) _TEXisLoading

Indicates if an texture is currently loading or not. True when loading, otherwise false.
Source:

(readonly) canvas :HTMLCanvasElement

The HTMLCanvasElement.
Type:
  • HTMLCanvasElement
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controller :Object

The main controller Object which handles mouse, keyboard and touch events. 
    Mouse:
    Left-Mousebutton and drag    | Rotation
    Right-Mousebutton and drag   | Translation
    Mousewheel                   | Zoom/Object scaling

    Keyboard:
    Arrow-Keys                   | Translation
    +/- Keys                     | Zoom/Object scaling

    Touch-Gestures:
    Touch and drag               | Rotation
    Double-Tap and drag          | Translation
    Two-finger pinch             | Zoom/Object scaling
Type:
  • Object
Source:

controller:deltaXRot :Number

The delta x-Rotation of the current interaction.
Type:
  • Number
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controller:deltaXTrans :Number

The delta x-Translation of the current interaction.
Type:
  • Number
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controller:deltaYRot :Number

The delta y-Rotation of the current interaction.
Type:
  • Number
Source:

controller:deltaYTrans :Number

The delta y-Translation of the current interaction.
Type:
  • Number
Source:

controller:deltaZTrans :Number

The delta z-Translation of the current interaction.
Type:
  • Number
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controller:objectScale :Number

The scaling factor.
Type:
  • Number
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controller:velocity :Number

Sets the sensitivity of interactions. Typical values are 1/x, where x is a number.
Type:
  • Number
Source:

controller:xRot :Number

The overall amount of x-Rotation of all interactions.
Type:
  • Number
Source:

controller:xTrans :Number

The overall amount of x-Translation of all interactions.
Type:
  • Number
Source:

controller:yRot :Number

The overall amount of y-Rotation of all interactions.
Type:
  • Number
Source:

controller:yTrans :Number

The overall amount of y-Translation of all interactions.
Type:
  • Number
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controller:zTrans :Number

The overall amount of z-Translation of all interactions.
Type:
  • Number
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(readonly) gl :WebGLRenderingContext

Access to the WebGLRenderingContext interface.
Type:
  • WebGLRenderingContext
Source:

Methods

flatten(m) → {Float32Array}

Takes in a javascript array and copies it into a Float32Array.
Parameters:
Name Type Description
m Array An array in javascript representation
Source:
Returns:
The newly created Float32Array
Type
Float32Array

getFragmentShaderSource() → {String}

Returns the fragment shader code in String representation provided in the FS form.
Source:
Returns:
String representation of the fragment shader code.
Type
String

getVertexShaderSource() → {String}

Returns the vertex shader code in String representation provided in the VS form.
Source:
Returns:
String representation of the vertex shader code.
Type
String

initShaders(gl) → {WebGLProgram}

Takes in the WebGLRenderingContext and starts to compile, attach and link the Vertex- and Fragment Shader.
Parameters:
Name Type Description
gl WebGLRenderingContext is the WebGLRenderingContext instance
Source:
Returns:
A WebGLProgram object that is a combination of two compiled WebGLShaders consisting of a vertex shader and a fragment shader (both written in GLSL). These are then linked into a usable program.
Type
WebGLProgram

lookAtArcballCamera(matrix, eye, at, up)

Generates a mat4 viewing matrix and connects it with the control of an arcball camera, by using the Object literals of the controller Object. 
Note: In order to see the changes when interacting with the canvas, the provided matrix has to be send to the vertex shader (e.g. as an uniform)
in the render-loop.
Parameters:
Name Type Description
matrix mat4 Placeholder matrix in which the viewing matrix will be stored
eye vec3 The starting camera position
at vec3 The starting focus point
up vec3 The starting roll of the camera
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modelInteraction(matrix)

Takes in a mat4 model matrix and manipulates it by using the Object literals of the controller Object. 
Note: In order to see the changes when interacting with the canvas, the provided matrix has to be send to the vertex shader (e.g. as an uniform)
in the render-loop.
Parameters:
Name Type Description
matrix mat4 Placeholder matrix in which the model matrix will be stored
Source:

writeLog(message)

Logging function which prints the value of any given Type to the status-window.
Parameters:
Name Type Description
message * The message to be displayed
Source: