/// <summary>Allocates GPU drawing meta now.</summary>
public override DrawStackNode Allocate(DrawInfo info,SurfaceTexture tex,ref int stackID){
if(SurfaceProperty!=null){
// Clear changed:
SurfaceProperty.Value.Changed=false;
if(IsTexture){
// Always just a single const node:
LiveStackNode constNode=new LiveStackNode(this,(SurfaceProperty.Value as TextureValue).Value);
DrawStore=constNode;
// Ok:
return constNode;
}
}
// Base:
return base.Allocate(info,tex,ref stackID);
}
public override void Prepare(DrawInfo info){
// "Bake" surface property now, if we have one:
if(SurfaceProperty==null){
return;
}
PropertyValue value=SurfaceProperty.Value;
// Numeric or colour?
ColourValue col=value as ColourValue;
if(col!=null){
// It's a colour!
Colour=col.Value;
// Value is intensity:
Value=(Colour.r + Colour.g + Colour.b) / 3.0;
}else{
// Try as numeric instead:
NumericValue num=value as NumericValue;
if(num!=null){
// Get it as a double:
Value=num.ToDouble();
// Create a colour:
float c=(float)Value;
Colour=new Color(c,c,c,1f);
}else{
// White:
Colour=new Color(1f,1f,1f,1f);
Value=1.0;
}
}
// Reset DrawStore:
if(IsTexture){
// Pull the texture:
LiveStackNode lsn=(DrawStore as LiveStackNode);
if(lsn!=null){
// Set:
lsn.Image=(SurfaceProperty.Value as TextureValue).Value;
// We may now need to bump parent if we're in a Draw() call;
// i.e. it needs to hook up this new image to its material.
if(info.CurrentParent!=null && info.CurrentParent.DrawStore!=null){
// Link away!
Material material=info.CurrentParent.DrawStore.NodeMaterial;
// Reset _srcX:
material.SetTexture("_Src"+info.CurrentIndex,lsn.Image);
}
}
}else{
TextureStackNode tsn=(DrawStore as TextureStackNode);
if(tsn!=null){
// Bake:
tsn.Bake();
}
}
}