Rectangular paper viewports now go through the same GPU stencil clip as
non-rectangular ones: viewport_clip_boundary_ndc returns the four rect
corners (a full-target mask) instead of nothing, so the render path has
no rect/non-rect special case — every content viewport carries a clip
boundary and draws with stencil reference 0xFF.
With a single clip path, the old per-wire / -image / -wipeout scissor
mechanism is fully dead and removed: compute_*_scissors, the
*_pixel_scissors buffers, the project_scissor helper, the per-pass
set_scissor_rect blocks, the vp_scissor field threaded through
WireModel / ImageModel / HatchModel and their GPU mirrors (WireGpu /
ImageGpu / WipeoutGpu / HatchWebGpu), from_run's scissor parameter, the
scissor grouping in build_wire_buffers, and the is_arena_eligible gate.
Net -245 lines across 54 files.
Rectangular viewports still clip exactly via their own render rectangle;
the stencil mask is a redundant full-target no-op there, kept only so
the clip code path stays uniform. XCLIP keeps its CPU wire clip.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A gradient hatch was drawn linear from the entity colour to its second
stop, so a red->yellow spherical fill came out as a pale linear wash. Two
fixes:
- Colour: start from the gradient's first stop, not the entity colour.
hatch_model_from_dxf already baked stop-0 in; stop synced_hatch_models
from clobbering it with the entity's resolved colour for gradient fills.
- Shape: spherical / hemispherical / curved gradient names now render as a
radial fill (new shader mode 3, centred on the boundary with radius to the
farthest vertex) instead of linear. Native and web shaders both updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The batched path is the sole hatch renderer and has no family cap, yet it
was named hatch_batched_gpu while the old capped per-primitive renderer
kept the hatch_gpu / MAX_FAMILIES name — which reads as if visible hatch
fills are truncated at 16 families (they are not). Swap the names so the
active renderer is hatch_gpu.rs / hatch.wgsl and the legacy one, now used
only for wipeout masks, is wipeout_gpu.rs / wipeout.wgsl. MAX_FAMILIES now
lives only in the wipeout module. Pure rename; no behaviour change.
Refs #323.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
