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Blueprint x-ray with dashed hidden lines

In your harnessGodot shaderMIT

Show a mesh as a see-through blueprint drawing: solid white contour lines on front faces, dashed lines for contours on hidden back faces, a faint object-space graph paper grid and a translucent blue fill.

Render of Blueprint x-ray with dashed hidden lines
The render its check recorded in Godot 4.7.2, 256 by 256 pixels.

What it takes and gives

Shader type
spatial
Render modes
unshaded, cull_disabled, depth_draw_never, shadows_disabled
Parameters
fill_color (vec4 = 0.08, 0.26, 0.58, 0.25), line_color (vec4 = 0.9, 0.96, 1, 1), contour_width (float = 0.25), dash_pixels (float = 10), hidden_opacity (float = 0.55), grid_size (float = 0.1), grid_opacity (float = 0.25)
Result
A transparent blue object drawn with white contour lines, dashed where they are behind the surface, over faint grid paper.
Renderers
compatibility: compiled and rendered, forward plus: not verified, mobile: not verified
Placement
res://baltor/godot_shaders/blueprint_schematic/

Limits. Contour lines come from the facing ratio, so flat faces seen edge-on fill completely and creases between flat faces are not drawn. Dashes run diagonally in screen space and do not follow the curve. Not sorted against other transparent objects.

Details

Kind
Godot shader
Engine
Godot 4.3 or later
Files
11 files, 58.8 KB
Licence
MIT
Declared effects
reads files, runs commands
Checked with
Godot 4.7.2, opengl3 compatibility (Mesa llvmpipe, Xvfb)
Checks
contract static, engine run, engine log clean, shader in scene, capture written, render not uniform, shader changes pixels
Techniques
Facing ratio contours, Back-face rendering with screen-space dashes for hidden lines, Derivative anti-aliased object-space grid
Tags
godot shader, spatial, blueprint, x-ray, technical drawing, hidden lines, npr
Identity
library.supply.creative_originals.0a20265ad33287a3df7a111f.b28e2de3b8cf070f
Version
b28e2de3b8cf070f3e365877ae645833fdfd8de12162670367728cc7911fb1cd

The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.

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