new IndexBuffer(gl, typeopt, dataopt, usageopt)
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
gl |
WebGLRenderingContext | then webgl context this ArrayBuffer belongs to | ||
type |
GLenum |
<optional> |
GL_UNSIGNED_SHORT | the inetger type of the indices (GL_UNSIGNED_BYTE, GL_UNSIGNED_INT etc) |
data |
TypedArray | uint |
<optional> |
optional data to copy to buffer, or the size (in bytes) | |
usage |
GLenum |
<optional> |
GL_STATIC_DRAW | the usage hint for this buffer. |
- Implements:
- Source:
Methods
bind()
Bind the underlying webgl buffer.
- Source:
data(array)
Fill webgl buffer with the given data. You can also pass a uint to allocate the buffer to the given size.
Parameters:
| Name | Type | Description |
|---|---|---|
array |
TypedArray | uint | the data to send to the buffer, or a size. |
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dispose()
Delete underlying webgl objects
- Source:
draw(mode, countopt, offsetopt)
Shortcut to gl.drawArrays
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
mode |
GLenum | the type of primitive to draw (GL_TRIANGLE, GL_POINTS etc) | ||
count |
uint |
<optional> |
the number of indices to draw (full buffer is used if omited) | |
offset |
uint |
<optional> |
0 | the position of the first index to draw |
- Source:
subData(array, offset)
Set a part of the buffer with the given data, starting a offset (in bytes)
Parameters:
| Name | Type | Description |
|---|---|---|
array |
typedArray | the data to send to buffer |
offset |
uint | the offset in byte where the data will be written |
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