Can I set area to limit drawing area?

[GBear]

hi..

 

I set Grayfilter to draw gray screen into container of top;

 

it looks good. but it gave me frame drop..

 

so I checked and finded  size of container is 7168x7168.

 

but I hope to draw screen area like 1280*720 or 1920*1080

 

is there idea?

 

 

 

 

[ivan.popelyshev]

Ok, suppose you have a sceneContainer with size 7168x7168 and some position. Lets create outerContainer:

outerContainer.addChild(sceneContainer);outerContainer.filters = [new GrayScaleFilter()]; //whatever, i dont remember the class nameouterContainer.filterArea = new Rectangle(0, 0, renderer.width, renderer.height);renderer.render(outerContainer);

Dont forget that you have to re-create that Rectangle on every resize.

 

Also, I suggest you to crop objects that arent seen in viewport (make obj.renderable=false for them) every frame.

[GBear]

oh.. 
really thx a lot...

 

filterArea is good  and  frame is up when i set it.

 

but I got other problem

 

i set filterArea with Rectange(640, 720) (default 1280, 720)

 

I hoped right side will be drawn original screen

but there is drawn white screen

this image is right is white. 

 

thx..

[ivan.popelyshev]

Copy grayscale filter and modify its shader that way it wont edit the colors or right part. filterArea must be 1280,720. I can help you with that

[GBear]

i see ..

Copy grayscale filter and modify its shader that way it wont edit the colors or right part. filterArea must be 1280,720. I can help you with that 

this means I have to modify GrayFilter to draw  right part that color is normal?

 

like filterArea = 1280, 720
      filters = [modified GrayFilter]

is it right?

[ivan.popelyshev]

yes

[ivan.popelyshev]

There are no filters that apply partially, you have to do it yourself, and it needs to be part of shader.