Welcome to mirror list, hosted at ThFree Co, Russian Federation.

git.blender.org/blender.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat (limited to 'intern/cycles/kernel/shaders/oslutil.h')
-rw-r--r--intern/cycles/kernel/shaders/oslutil.h101
1 files changed, 0 insertions, 101 deletions
diff --git a/intern/cycles/kernel/shaders/oslutil.h b/intern/cycles/kernel/shaders/oslutil.h
deleted file mode 100644
index d48bfa4a665..00000000000
--- a/intern/cycles/kernel/shaders/oslutil.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Adapted from Open Shading Language with this license:
- *
- * Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al.
- * All Rights Reserved.
- *
- * Modifications Copyright 2011, Blender Foundation.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of Sony Pictures Imageworks nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef CCL_OSLUTIL_H
-#define CCL_OSLUTIL_H
-
-// Return wireframe opacity factor [0, 1] given a geometry type in
-// ("triangles", "polygons" or "patches"), and a line_width in raster
-// or world space depending on the last (raster) boolean argument.
-//
-float wireframe(string edge_type, float line_width, int raster)
-{
- // ray differentials are so big in diffuse context that this function would always return "wire"
- if (raytype("path:diffuse"))
- return 0.0;
-
- int np = 0;
- point p[64];
- float pixelWidth = 1;
-
- if (edge_type == "triangles") {
- np = 3;
- if (!getattribute("geom:trianglevertices", p))
- return 0.0;
- }
- else if (edge_type == "polygons" || edge_type == "patches") {
- getattribute("geom:numpolyvertices", np);
- if (np < 3 || !getattribute("geom:polyvertices", p))
- return 0.0;
- }
-
- if (raster) {
- // Project the derivatives of P to the viewing plane defined
- // by I so we have a measure of how big is a pixel at this point
- float pixelWidthX = length(Dx(P) - dot(Dx(P), I) * I);
- float pixelWidthY = length(Dy(P) - dot(Dy(P), I) * I);
- // Take the average of both axis' length
- pixelWidth = (pixelWidthX + pixelWidthY) / 2;
- }
-
- // Use half the width as the neighbor face will render the
- // other half. And take the square for fast comparison
- pixelWidth *= 0.5 * line_width;
- pixelWidth *= pixelWidth;
- for (int i = 0; i < np; i++) {
- int i2 = i ? i - 1 : np - 1;
- vector dir = P - p[i];
- vector edge = p[i] - p[i2];
- vector crs = cross(edge, dir);
- // At this point dot(crs, crs) / dot(edge, edge) is
- // the square of area / length(edge) == square of the
- // distance to the edge.
- if (dot(crs, crs) < (dot(edge, edge) * pixelWidth))
- return 1;
- }
- return 0;
-}
-
-float wireframe(string edge_type, float line_width)
-{
- return wireframe(edge_type, line_width, 1);
-}
-float wireframe(string edge_type)
-{
- return wireframe(edge_type, 1.0, 1);
-}
-float wireframe()
-{
- return wireframe("polygons", 1.0, 1);
-}
-
-#endif /* CCL_OSLUTIL_H */