public void Init(RTRenderer renderer, IRTCamera cam, int canvasWidth, int canvasHeight, int numSamples)
{
if (status != STATUS_UNDEFINED)
{
return;
}
this.renderer = renderer;
this.cam = cam;
this.canvasWidth = canvasWidth;
this.canvasHeight = canvasHeight;
this.numSamples = numSamples;
status = STATUS_READY;
}
protected virtual void Start()
{
int canvasWidth = isScreenSize ? Screen.width : 200;
int canvasHeight = isScreenSize ? Screen.height : 100;
cam = CreateCamera(canvasWidth, canvasHeight);
ppmTexture.Init(canvasWidth, canvasHeight);
renderingTasksManager = new RenderingTasksManager();
int pixelIndex = 0;
RenderingTask task = null;
int itemsCount = 0;
for (int j = 0; j < ppmTexture.Height; ++j)
{
for (int i = 0; i < ppmTexture.Width; ++i)
{
if (multiThreadRendering)
{
if (itemsCount == 0)
{
task = new RenderingTask();
task.Init(this, cam, ppmTexture.Width, ppmTexture.Height, numSamples);
renderingTasksManager.AddTask(task, RenderingTaskCompleteCB);
}
task.AddItem(i, j, pixelIndex);
++itemsCount;
if (itemsCount == RenderingTask.SIZE)
{
itemsCount = 0;
}
++pixelIndex;
}
else
{
Color color = Color.black;
for (int s = 0; s < numSamples; ++s)
{
float u = (i + RTMath.Rnd01()) / ppmTexture.Width;
float v = (j + RTMath.Rnd01()) / ppmTexture.Height;
RTRay ray = cam.GetRay(u, v);
color += GetColor(ray, 0);
}
color /= numSamples;
ppmTexture.WriteAPixel(color);
}
}
}
if (!multiThreadRendering)
{
ppmTexture.Complete();
RenderingComplete();
}
else
{
renderingTasksManager.Start();
}
}