Tilemap borders using bilinear filtering

Hi,

What is the correct process to render everything to a base resolution and then scale that up to your screen/window resolution with filtering?

As this seems to be the only way to avoid tile border artifacts when using bilinear filtering. This is what I would do in a custom engine but I don't know how to do this is Construct.

Below is what I wanted to avoid.

Set low-quality fullscreen mode, and Construct will render the game at a fixed size (the viewport size of the project), and stretch the result to fill the screen (according to the project sampling property).

Thanks Ashley, that solves the tile border issue. Unfortunately though now I can't apply the distortion effects I want (noise, bulge, blur, glow...) to the low quality render without it looking really bad.

I'm not sure if I'm doing this correctly (applying effects to a white tiled background on the top layer which multplies everything below it), or what I want is just not possible in C3.

The way I would do this in SDL2/OpenGL would be to render everything to a texture at the base resolution and then upscale the texture to the screen/window using bilinear filtering and apply the shaders/distortions to that.

The only way I've been able to achieve the effects I want without tilemap border issues in C3 is just to not use tilemaps and use sprites/tiled backgrounds for common platform patterns instead, but obviously this means buildings levels is more time consuming, and probably runs slower.