private static int Threaded_CreatePerlinNoisePlane(int start, int end, Engine.Threading.ParamList paramList)
{
Engine.Effects.Noise.IModule module = (Engine.Effects.Noise.IModule)paramList.Get(paramName_module).Value;
Engine.Surface.Canvas canvas = (Engine.Surface.Canvas)paramList.Get(paramName_canvas).Value;
double value = 0;
// loop block : source and info at : https://libnoisedotnet.codeplex.com/downloads/get/720936
// and http://libnoise.sourceforge.net/tutorials/tutorial8.html
for (int y = start; y < end; y++)
{
for (int x = 0; x < canvas.Width - 1; x++)
{
value = (module.GetValue(x, y, 10) + 1) / 2.0;
if (value < 0)
{
value = 0;
}
if (value > 1.0)
{
value = 1.0;
}
byte intensity = (byte)(value * 255.0);
Engine.Color.Cell c = Engine.Color.Cell.ShadeOfGray(intensity);
canvas.SetPixel(c, x, y, PixelSetOptions.Ignore);
}
}
return(0);
}
public virtual void Initialize(Engine.Workflow w)
{
t_workflow = w;
t_attributeCollection = new Attributes.AttributeCollection();
t_imageSource = t_workflow.Canvas;
// clear the drawing surface of all work layers created by previous tools or effects
t_workflow.SelectionGlassRequest(SelectionGlassRequestType.Delete);
}
public static Engine.Surface.Canvas CreatePerlinNoisePlane(Engine.Surface.Canvas source, double frequency, int seed, int octaves)
{
Engine.Effects.Noise.IModule module = new Engine.Effects.Noise.Perlin();
((Perlin)module).Frequency = frequency;
((Perlin)module).NoiseQuality = NoiseQuality.Standard;
((Perlin)module).Seed = seed;
((Perlin)module).OctaveCount = octaves;
((Perlin)module).Lacunarity = 2.0;
((Perlin)module).Persistence = 0.5;
Engine.Surface.Canvas perlinSurface = new Canvas(source.Width, source.Height);
Engine.Threading.ThreadedLoop loop = new Threading.ThreadedLoop();
Engine.Threading.ParamList paramList = new Threading.ParamList();
paramList.Add(paramName_module, typeof(Engine.Effects.Noise.IModule), module);
paramList.Add(paramName_canvas, typeof(Engine.Surface.Canvas), perlinSurface);
loop.Loop(source.Height, Threaded_CreatePerlinNoisePlane, paramList);
loop.Dispose();
return(perlinSurface);
}
private void ThreadedProcess()
{
if (t_noiseType == NoiseTypes.Undefined)
{
t_noiseType = NoiseTypes.FastNoise;
}
Engine.Effects.Noise.IModule module;
// switch block : source and info at : https://libnoisedotnet.codeplex.com/downloads/get/720936
// and http://libnoise.sourceforge.net/tutorials/tutorial8.html
switch (t_noiseType)
{
case NoiseTypes.Billow:
module = new Engine.Effects.Noise.Billow();
((Billow)module).Frequency = t_frequency;
((Billow)module).NoiseQuality = NoiseQuality.Standard;
((Billow)module).Seed = t_seed;
((Billow)module).OctaveCount = t_octaves;
((Billow)module).Lacunarity = t_lacunarity;
((Billow)module).Persistence = t_persistence;
break;
case NoiseTypes.FastBillow:
module = new Engine.Effects.Noise.FastBillow();
((FastBillow)module).Frequency = t_frequency;
((FastBillow)module).NoiseQuality = NoiseQuality.Standard;
((FastBillow)module).Seed = t_seed;
((FastBillow)module).OctaveCount = t_octaves;
((FastBillow)module).Lacunarity = t_lacunarity;
((FastBillow)module).Persistence = t_persistence;
break;
case NoiseTypes.FastNoise:
module = new Engine.Effects.Noise.FastNoise();
((FastNoise)module).Frequency = t_frequency;
((FastNoise)module).NoiseQuality = NoiseQuality.Standard;
((FastNoise)module).Seed = t_seed;
((FastNoise)module).OctaveCount = t_octaves;
((FastNoise)module).Lacunarity = t_lacunarity;
((FastNoise)module).Persistence = t_persistence;
break;
default:
module = new Engine.Effects.Noise.Perlin();
((Perlin)module).Frequency = t_frequency;
((Perlin)module).NoiseQuality = NoiseQuality.Standard;
((Perlin)module).Seed = t_seed;
((Perlin)module).OctaveCount = t_octaves;
((Perlin)module).Lacunarity = t_lacunarity;
((Perlin)module).Persistence = t_persistence;
break;
}
t_imageProcessed = new Engine.Surface.Canvas(t_imageSource.Width, t_imageSource.Height);
t_workflow.AllowInvalidate = true;
Engine.Threading.ThreadedLoop loop = new Threading.ThreadedLoop();
Engine.Threading.ParamList paramList = new Threading.ParamList();
paramList.Add(paramName_module, typeof(Engine.Effects.Noise.IModule), module);
loop.Loop(t_imageSource.Height, Threaded_Process, paramList);
loop.Dispose();
base.PostProcess();
}
