nan
4035f5c9e4
- Unified the canonical local frame for generated geometries (Plane, Depth Plane, Relief Plane, Cutout, Depth Cutout) to align with Blender's object coordinate system, setting X as horizontal, Z as up, and +Y as depth. - Removed the `Depth Axis` parameter from `O Image Cutout` and `O Image Depth Cutout`, simplifying the geometry generation process. - Updated the depth direction defaults to use +Y instead of -Z for `O Image Relief Plane` and Depth Symmetry. - Adjusted the geometry nodes to ensure thickness, projection, and shell displacements operate along the Y-axis. - Implemented new capabilities for handling object space normals to align with the new canonical frame. - Enhanced the Depth Symmetry functionality to mirror across the canonical Y-axis and perform a final rotation to maintain the correct orientation. - Added tests to validate the new coordinate system and ensure compatibility with existing assets.
96 lines
4.4 KiB
Python
96 lines
4.4 KiB
Python
"""Reload saved assets and evaluate geometry in the target Blender process."""
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from math import isfinite
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from pathlib import Path
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import bpy
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ASSET_PATH = Path(__file__).resolve().parents[2] / "src/anyimage/assets/O_AnyImage.blend"
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GEOMETRY_NAMES = {
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"O Image Depth Panorama",
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"O Image Plane", "O Image Depth Plane", "O Image Relief Plane",
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"O Image Cutout", "O Image Depth Cutout", "O Image Cutout Symmetry",
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}
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SHADER_NAMES = {"O Image Layer", "O Image Depth Layer", "O Shadeless"}
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def check_asset_library(asset_path):
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"""Check library completeness and finite, nonempty evaluated geometry."""
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with bpy.data.libraries.load(str(asset_path), link=True) as (source, target):
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assert set(source.node_groups) == GEOMETRY_NAMES | SHADER_NAMES
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target.node_groups = sorted(GEOMETRY_NAMES | SHADER_NAMES)
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pending, checked = list(target.node_groups), set()
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while pending:
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group = pending.pop()
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if group in checked or group.bl_idname != "GeometryNodeTree":
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continue
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checked.add(group)
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for node in group.nodes:
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assert node.bl_idname != "GeometryNodeCaptureAttribute", group.name
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if node.bl_idname == "GeometryNodeGroup" and node.node_tree:
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pending.append(node.node_tree)
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depth_image = bpy.data.images.new("Asset Check Depth", width=8, height=8, float_buffer=True)
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depth_image.colorspace_settings.name = "Non-Color"
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depth_image.pixels.foreach_set([
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value for y in range(8) for x in range(8)
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for value in ((x + 0.5) / 8 - 0.5, (y + 0.5) / 8 - 0.5, 2.0, 1.0)
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])
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for node_group in target.node_groups:
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expected_type = "GeometryNodeTree" if node_group.name in GEOMETRY_NAMES else "ShaderNodeTree"
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assert node_group.bl_idname == expected_type and node_group.library is not None, node_group.name
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if expected_type == "ShaderNodeTree":
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continue
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mesh = bpy.data.meshes.new("Asset Check Plane")
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mesh.from_pydata(
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[(x / 3 - 0.5, 0, y / 3 - 0.5) for y in range(4) for x in range(4)], [],
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[(y * 4 + x, y * 4 + x + 1, (y + 1) * 4 + x + 1, (y + 1) * 4 + x)
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for y in range(3) for x in range(3)],
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)
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uv = mesh.uv_layers.new(name="UVMap")
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for loop in mesh.loops:
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position = mesh.vertices[loop.vertex_index].co
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uv.data[loop.index].uv = (position.x + 0.5, position.z + 0.5)
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profile = mesh.attributes.new("o_balloon", "FLOAT", "POINT")
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for value in profile.data:
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value.value = 0.2
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obj = bpy.data.objects.new("Asset Check", mesh)
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bpy.context.collection.objects.link(obj)
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modifier = obj.modifiers.new("Asset Check", "NODES")
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modifier.node_group = node_group
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values = {"Subdivide": 0, "Thickness": 0.2, "Reference Depth": 2.0,
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"Depth Image": depth_image, "Uniform Scale": 1.0, "Normal Smooth": 0,
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"Depth Split": 0.0}
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if node_group.name == "O Image Cutout Symmetry":
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values["Offset"] = 0.5
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for item in node_group.interface.items_tree:
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if item.item_type == "SOCKET" and item.in_out == "INPUT" and item.name in values:
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modifier[item.identifier] = values[item.name]
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obj.update_tag(refresh={"DATA"})
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bpy.context.view_layer.update()
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evaluated = obj.evaluated_get(bpy.context.evaluated_depsgraph_get())
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result = evaluated.to_mesh()
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try:
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assert len(result.vertices) and len(result.polygons), node_group.name
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assert all(isfinite(value) for vertex in result.vertices for value in vertex.co), node_group.name
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assert not list(modifier.node_warnings), (
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node_group.name, [warning.message for warning in modifier.node_warnings],
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)
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assert not {attribute.name for attribute in result.attributes} & {
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".o_anyimage_depth_cut", ".o_anyimage_original_boundary",
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}, node_group.name
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finally:
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evaluated.to_mesh_clear()
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bpy.data.objects.remove(obj, do_unlink=True)
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bpy.data.meshes.remove(mesh)
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bpy.data.images.remove(depth_image)
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print(f"Checked {len(target.node_groups)} saved node groups in Blender {bpy.app.version_string}")
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def main():
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bpy.ops.wm.read_factory_settings(use_empty=True)
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check_asset_library(ASSET_PATH)
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if __name__ == "__main__":
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main()
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