Brecht Van Lommel
9cfc7967dd
* Replace license text in headers with SPDX identifiers. * Remove specific license info from outdated readme.txt, instead leave details to the source files. * Add list of SPDX license identifiers used, and corresponding license texts. * Update copyright dates while we're at it. Ref D14069, T95597
28 lines
883 B
Plaintext
28 lines
883 B
Plaintext
/* SPDX-License-Identifier: Apache-2.0
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* Copyright 2011-2022 Blender Foundation */
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#include "oslutil.h"
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#include "stdcycles.h"
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shader node_wireframe(string bump_offset = "center",
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int use_pixel_size = 0,
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float Size = 0.01,
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output float Fac = 0.0)
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{
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Fac = wireframe("triangles", Size, use_pixel_size);
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/* TODO(sergey): Since we can't use autodiff here we do algebraic
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* calculation of derivatives by definition. We could probably
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* optimize this a bit by doing some extra calculation in wireframe().
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*/
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if (bump_offset == "dx") {
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point dx = Dx(P);
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P -= dx;
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Fac += (Fac - wireframe("triangles", Size, use_pixel_size)) / length(dx);
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}
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else if (bump_offset == "dy") {
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point dy = Dy(P);
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P -= dy;
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Fac += (Fac - wireframe("triangles", Size, use_pixel_size)) / length(dy);
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}
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}
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