Imported GLB/glTF models were invisible in the Composition viewer while
text showed. Only the Advanced 3D renderer draws model and primitive
layers, and new compositions (and New Comp from Selection) are Classic
3D by default, but adding a model layer left the comp's renderer alone,
so the model drew nothing on every backend. It wasn't the reporter's
GPU: on this machine the viewer showed nothing for a GLB in a new comp
with the GPU compositor (Vulkan) and with Mercury Software Only, and
the model in both once the comp used Advanced 3D.
As After Effects documents ("Advanced 3D gets automatically selected
when you add a 3D model to the composition"), layer.newModel /
layer.addItem of a model and layer.newPrimitive now switch a Classic
3D comp to Advanced 3D inside the same edit (one undo step, Geometry
Options added to its text and shape layers like Composition Settings
does) and toast that the comp changed renderer. Switching a comp that
has model layers back to Classic 3D toasts why they disappear.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Composition viewer ignored drags from other panels. Now, as in After
Effects:
- A Project item dropped on the viewer becomes a layer centred where it
lands (above the selected layer, like any new layer); while dragging, the
viewer is outlined and the layer's frame follows the pointer.
- Media Browser files do the same; files dropped from the OS file manager
do too when the platform reports where the pointer is during the drag
(otherwise they import as before).
- An effect from Effects & Presets goes on the layer under the pointer,
which is outlined while dragging.
layer.addItem and layer.newModel take `position` ([x, y] comp px).
file.import takes `addToComp` with `time`, `index` and `position`;
mediaBrowser.import shares it (file::add_to_comp): layered files go in as
their comps, the comp they were dropped in stays open, and items that
can't be layers are reported in `errors`. viewer::layer_at is the hit
test pick() and the drop share.
Tests: ui_drag_drop.rs (project item and effect dropped on the viewer)
and imported_files_go_into_the_comp_where_they_were_dropped (engine).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A Project item (or Media Browser file) dropped in the Timeline always
went above the selected layer, starting where new layers start.
Now, as in After Effects, a line shows where it goes in the stack (above
the first layer row whose middle is below the pointer, else below the
last), and over the time graph a marker with a timecode tag shows its In
point, which follows the pointer (frame-snapped) or, with Shift, the
current time. The layer reorder drag shares the insertion logic.
layer.addItem and layer.newModel take `index` (1-based stack position);
mediaBrowser.import passes `time` and `index` on, one layer under the
other.
Tests: project_items_land_where_they_are_dropped_in_the_timeline
(ui_drag_drop.rs, real pointer drags: outline, time graph, Shift, below
the last layer) and add_item_at_a_stack_index_and_time (engine).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Advanced 3D comps render their 3D runs as one scene of world-space triangles: model and
primitive layers (meshes, skinning, animation clips by layer time), extruded text/shape
layers, and textured cards for every other layer with their Material Options. Shading is
physically based in linear light: Cook-Torrance GGX + Lambert for parallel/spot/point lights
(AE falloff and cone), ambient lights, image-based light from an Environment light's layer
(equirectangular; cosine irradiance map + roughness mip chain + split-sum BRDF fit), and
PCF shadow maps (spot/parallel/point cube faces). 2x2 SSAA, depth of field as a gather blur
by circle of confusion, back to the working encoding.
The software rasteriser (depth buffer, top-left rule, perspective-correct, opaque visibility
then sorted transparent blending) is the reference and CI path; effectcraft-gpu implements
Accelerator::raster_3d with a wgpu render pipeline (advanced3d.wgsl) and matches it within
tolerance. Environment layers are hidden from both renderers.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New crate effectcraft-model (L2): glTF 2.0 (.gltf/.glb, data URIs, external buffers and
images, PBR metallic-roughness with base/MR/normal/occlusion/emissive textures, node
hierarchy, skins, step/linear/cubic animations) and OBJ/MTL import, parametric primitives,
extruded/bevelled outline meshes and polygon triangulation with holes.
Project: FootageKind::Model, LayerSource::Model/Primitive, Layer::environment, Geometry and
Material Options builders, Environment light Source. Media probes and loads models
(FootageSource::model). Engine: layer.newModel, layer.new3dPrimitive/newPrimitive,
comp.renderer, layer.environment, material.set/reset/duplicateAssign/revealSource (stubs
replaced); File > Import and layer.addItem pick up models. Hand-written fixtures with
attribution sidecars.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
bflatastic
Brandon Thomas