Martin Beck

Hello, is there a way to downsample a texture (reduce number of pixels) using jit.gl.slab or jit.gl.pix without using jit.gl.texture @adapt 0 and @dim, or jit.matrix?

Hello, is there a way to downsample a texture (reduce number of pixels) using jit.gl.slab or jit.gl.pix without using jit.gl.texture @adapt 0 and @dim,  or jit.matrix?

Hello, is there a way to downsample a texture (reduce number of pixels) using jit.gl.slab or jit.gl.pix without using jit.gl.texture @adapt 

downsample-texture

you can use the 'sample' object within 'jit.gl.pix', and tell it to skip sampling every other cell-coordinate(or more than every other for more than 2x downsampling).

But this yields a texture that has the same amount of pixels as the input, only the values are changed so it appears to be downsampled.

Use the @dimscale attribute. For instance:

"jit.gl.slab @dimscale 0.5 0.5" will halve the resolution of the texture on both dimensions (X, Y).

Use the @dimscale attribute. For instance:
"jit.gl.slab @dimscale 0.5 0.5" will halve the resolution of the texture on both dimensions (X, Y).

ah you're right, my bad(and this helped me to learn, so i thank you :)

But this yields a texture that has the same amount of pixels as the input

just use slab/pix @adapt 0 @dim your_desired_x your_desired_y

Downsample texture