/// <summary>
/// Query the parameters in the HDA, and change some values.
/// </summary>
/// <param name="houdiniAsset">The HEU_HoudiniAsset of the loaded asset</param>
public static void ChangeParmsAndCook(HEU_HoudiniAsset houdiniAsset)
{
// Always get the latest parms after each cook
List <HEU_ParameterData> parms = houdiniAsset.Parameters.GetParameters();
if (parms == null || parms.Count == 0)
{
Debug.LogFormat("No parms found");
return;
}
// --------------------------------------------------------------------
// Example to loop over each parm, checking its type and name. Then setting value.
StringBuilder sb = new StringBuilder();
foreach (HEU_ParameterData parmData in parms)
{
sb.AppendLine(string.Format("Parm: name={0}, type={1}", parmData._labelName, parmData._parmInfo.type));
if (parmData._parmInfo.type == HAPI_ParmType.HAPI_PARMTYPE_BUTTON)
{
// Display a button: parmData._intValues[0];
}
else if (parmData._parmInfo.type == HAPI_ParmType.HAPI_PARMTYPE_FLOAT)
{
// Display a float: parmData._floatValues[0];
// You can set a float this way
HEU_ParameterUtility.SetFloat(houdiniAsset, parmData._name, 1f);
// Or this way (the index is 0, unless its for array of floats)
parmData._floatValues[0] = 1;
}
}
Debug.Log("Parameters: \n" + sb.ToString());
// --------------------------------------------------------------------
// Examples to look up a parm via name, and set it.
// Use helper to set float parameter with name
HEU_ParameterUtility.SetFloat(houdiniAsset, "gravity", 5f);
// Use helper to set random color
HEU_ParameterUtility.SetColor(houdiniAsset, "branch_vtx_color_color", Random.ColorHSV());
// Make sure to cook after changing parms
CookAsset(houdiniAsset);
}
private void UpdateGravity()
{
if (_evergreenAsset != null)
{
float g = (1.0f + Mathf.Sin(Time.realtimeSinceStartup)) * _scale;
// Use helper to set float parameter with name
HEU_ParameterUtility.SetFloat(_evergreenAsset, "gravity", g);
// Use helper to set random color
HEU_ParameterUtility.SetColor(_evergreenAsset, "branch_vtx_color_color", Random.ColorHSV());
// Cook synchronously to guarantee geometry generated in this update.
_evergreenAsset.RequestCook(true, false, true, true);
}
}