ludic/changes/render3d-water-scale.md

bump: patch type: fix ludic.render3d: water read the window's size, not the frame it drew into. The water shader's u_screen and the reflection target were sized from the drawable, but gl_FragCoord there runs over the scene target. They match only at a render scale of 1; below that the refraction and depth reads landed in the wrong corner of the frame and the lake showed a squashed copy of it instead of its own bed.