/**
* Callback called for each paintbrush stamp (each time the user drags the mouse, and when he first clicks down).
*/
private void PaintbrushStampCallback(List <ParticleStampInfo> stampInfo, bool modified)
{
// Average and particle count for SMOOTH mode.
float averageValue = 0;
int numParticles = 0;
foreach (ParticleStampInfo info in stampInfo)
{
// Skip unselected particles, if selection mask is on.
if (selectionMask && !selectionStatus[info.index])
{
continue;
}
switch (paintMode)
{
case PaintBrushType.Gaussian:
case PaintBrushType.Pencil:
float currentValue = GetPropertyValue(currentProperty, info.index);
float profile = (paintMode == PaintBrushType.Pencil) ? brushModulation :
ObiEditorUtils.GaussianBrushProfile(Mathf.Sqrt(info.sqrDistanceToMouse) / brushRadius, 4) * brushModulation;
if (modified)
{
SetPropertyValue(currentProperty, info.index, currentValue + profile * (currentValue - newProperty) * brushOpacity);
}
else
{
SetPropertyValue(currentProperty, info.index, currentValue - profile * (currentValue - newProperty) * brushOpacity);
}
break;
case PaintBrushType.Smooth:
averageValue += GetPropertyValue(currentProperty, info.index);
numParticles++;
break;
}
}
if (paintMode == PaintBrushType.Smooth)
{
averageValue /= numParticles;
foreach (ParticleStampInfo info in stampInfo)
{
// Skip unselected particles, if selection mask is on.
if (selectionMask && !selectionStatus[info.index])
{
continue;
}
float currentValue = GetPropertyValue(currentProperty, info.index);
float profile = ObiEditorUtils.GaussianBrushProfile(Mathf.Sqrt(info.sqrDistanceToMouse) / brushRadius, 4) * brushModulation;
if (modified) //Sharpen
{
SetPropertyValue(currentProperty, info.index, currentValue + profile * (currentValue - averageValue) * brushOpacity);
}
else //Smooth
{
SetPropertyValue(currentProperty, info.index, currentValue - profile * (currentValue - averageValue) * brushOpacity);
}
}
}
}