public RenderContext(SVGSVGElement drawing)
{
Drawing = drawing;
// Create the tex too:
Filter = new Loonim.SurfaceTexture();
// Create the draw surface:
DrawInfo = new Loonim.DrawInfo();
}
/// <summary>Connects a filter to the camera's output.
/// Fires an imagechange event too as this updates Texture to the filtered version.</summary>
private void ConnectFilter()
{
if (Filter_ != null)
{
if (FilterDrawInfo == null)
{
FilterDrawInfo = new Loonim.DrawInfo();
}
// Update draw info:
FilterDrawInfo.SetSize(pixelWidth, pixelHeight);
// Update source:
Filter_.Set("source0", SourceCamera.targetTexture);
// Reallocate the filter:
Filter_.PreAllocate(FilterDrawInfo);
// Grab the main output (always a RT):
Texture = Filter_.Texture as RenderTexture;
if (Texture == null)
{
// This isn't a valid filter!
// It either had no nodes or e.g. e.g. a solid colour.
Debug.Log("Invalid filter was set to a FlatWorldUI - removed it.");
Filter_ = null;
}
}
if (Filter_ == null)
{
// Clear draw info:
FilterDrawInfo = null;
// Revert to the camera's output:
Texture = SourceCamera.targetTexture;
}
// Fire an imagechange event into the window:
Dom.Event e = new Dom.Event("imagechange");
e.SetTrusted(false);
document.window.dispatchEvent(e);
}
/// <summary>Sets a filter to apply. This is what rasterising elements is all for!</summary>
public void SetFilter(Loonim.SurfaceTexture tex)
{
Filter = tex;
if (tex == null)
{
if (FilterDrawInfo != null)
{
// Tidy it up:
tex.Clear();
FilterDrawInfo = null;
}
if (Renderer != null)
{
// Update it now:
Output = Renderer.Texture;
if (Material != null)
{
// Hook up the output:
Material.SetTexture("_MainTex", Output);
}
}
}
else
{
// Create the draw info (for GPU mode):
FilterDrawInfo = new Loonim.DrawInfo();
if (Renderer != null)
{
// Update it now:
Filter.Set("source0", Renderer.Texture);
// Note that the next draw will update Output for us.
}
}
}