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How to efficiently set Xflow input with TypedArrays
lachsen edited this page Nov 4, 2013
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It is possible to use the setScriptValue
method of ValueElements (e.g. <float3>
, <int>
etc.) to override the data with a typed array.
Example:
var valueElement = document.getElementByTagName("float3")[0];
// set data of value element
valueElement.setScriptValue(someTypedArray);
// clear the override value:
valueElement.textContent = "1 0 2";
When using setScriptValue, the content of the DOM element is replaced with the text [value set by script].
Example:
<!-- ValueElement before using setScriptValue -->
<float3 name="diffuseColor" >1 1 0</float3>
<!-- ValueElement after using setScript Value -->
<float3 name="diffuseColor" >[value set by script]</float3>
Depending on the type of ValueElement different TypedArrays are supported.
Here a table:
ValueElement | TypedArray |
---|---|
float | Float32Array |
float2 | Float32Array |
float3 | Float32Array |
float4 | Float32Array |
float4x4 | Float32Array |
int | Int32Array |
int4 | Int32Array |
bool | Int8Array |
texture | Currently not supported |