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ExPikaPaka
8baeba1341
Add layer asks which kind of layer it is making - a relief layer, a height map pushed into the surface, or a ChromaStack picture - and the layer keeps the answer, so a card never shows a control that cannot do anything on it. Depth, Midlevel, Smoothing, Invert, Edge fade, Tile and Blend are absent from a picture card: each would move the relief's steps off the print's layer boundaries, or has nothing to act on. Tile size becomes Picture size. A picture cannot be reordered, since anything printed over it buries the colours, and an object can hold only one, refused when the layer is added rather than when its swaps would overwrite the first one's. The card is the feature in one block: the picture and the predicted print side by side, how far the prediction lands from the picture, the base measured from the painted face, a row per band with the filament's name and an editable TD, and the colours the stack reaches as a ramp - computed from the stack alone, so it answers whether these filaments can print this picture before a solve is spent finding out they cannot. The swaps go onto the object as height ranges with extruder and layer_height set, so they are object-relative, saved in the project and visible in the object list; ObjectList::rebuild_layer_ranges() mirrors them in the tree without touching the selection, which inside a gizmo would tear the gizmo down. The colours exist nowhere else - they are blends of translucent filaments, not filaments, so the scene's per-triangle filament assignment cannot express them - so the gizmo draws them itself, with a shader that reads each fragment's own print Z. A swap happens at one Z across the whole plate, so that is what decides a surface's colour, a band edge lands on the layer boundary however coarse the mesh is, and it still works after a bake when the height map is attached to nothing on screen. On top of the colour it shades like printed plastic: a wrapped terminator and a grazing glow scaled by the top filament's TD, and layer lines on the walls, all fading out through fwidth once a pixel covers more than half a layer.