protected EffectIntents RenderNodeByStrings(ElementNode node, ref EffectIntents effectIntents)
{
int nFrames = GetNumberFrames();
if (nFrames <= 0 | BufferWi == 0 || BufferHt == 0)
{
return(new EffectIntents());
}
var buffer = new PixelFrameBuffer(BufferWi, BufferHt, UseBaseColor?BaseColor:Color.Transparent);
int bufferSize = StringPixelCounts.Sum();
TimeSpan startTime = TimeSpan.Zero;
// set up arrays to hold the generated colors
var pixels = new RGBValue[bufferSize][];
for (int eidx = 0; eidx < bufferSize; eidx++)
{
pixels[eidx] = new RGBValue[nFrames];
}
// generate all the pixels
for (int frameNum = 0; frameNum < nFrames; frameNum++)
{
if (UseBaseColor)
{
var level = BaseLevelCurve.GetValue(GetEffectTimeIntervalPosition(frameNum) * 100) / 100;
buffer.ClearBuffer(level);
}
else
{
buffer.ClearBuffer();
}
RenderEffect(frameNum, buffer);
// peel off this frames pixels...
if (StringOrientation == StringOrientation.Horizontal)
{
int i = 0;
for (int y = 0; y < BufferHt; y++)
{
for (int x = 0; x < StringPixelCounts[y]; x++)
{
if (i >= pixels.Length)
{
break;
}
pixels[i][frameNum] = new RGBValue(buffer.GetColorAt(x, y));
i++;
}
}
}
else
{
int i = 0;
for (int x = 0; x < BufferWi; x++)
{
for (int y = 0; y < StringPixelCounts[x]; y++)
{
if (i >= pixels.Length)
{
break;
}
pixels[i][frameNum] = new RGBValue(buffer.GetColorAt(x, y));
i++;
}
}
}
}
// create the intents
var frameTs = new TimeSpan(0, 0, 0, 0, FrameTime);
var elements = _elementsCached?_cachedElements:node.Distinct().ToList();
int numElements = elements.Count;
for (int eidx = 0; eidx < numElements; eidx++)
{
IIntent intent = new StaticArrayIntent <RGBValue>(frameTs, pixels[eidx], TimeSpan);
effectIntents.AddIntentForElement(elements[eidx].Id, intent, startTime);
}
return(effectIntents);
}