c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/* SPDX-FileCopyrightText: 2018 Blender Foundation
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup bke
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "BLI_assert.h"
|
|
#include "BLI_compiler_compat.h"
|
|
|
|
#include "BKE_subdiv.h"
|
|
|
|
BLI_INLINE void BKE_subdiv_ptex_face_uv_to_grid_uv(const float ptex_u,
|
|
const float ptex_v,
|
|
float *r_grid_u,
|
|
float *r_grid_v)
|
|
{
|
|
*r_grid_u = 1.0f - ptex_v;
|
|
*r_grid_v = 1.0f - ptex_u;
|
|
}
|
|
|
|
BLI_INLINE void BKE_subdiv_grid_uv_to_ptex_face_uv(const float grid_u,
|
|
const float grid_v,
|
|
float *r_ptex_u,
|
|
float *r_ptex_v)
|
|
{
|
|
*r_ptex_u = 1.0f - grid_v;
|
|
*r_ptex_v = 1.0f - grid_u;
|
|
}
|
|
|
|
BLI_INLINE int BKE_subdiv_grid_size_from_level(const int level)
|
|
{
|
|
return (1 << (level - 1)) + 1;
|
|
}
|
|
|
|
BLI_INLINE int BKE_subdiv_rotate_quad_to_corner(const float quad_u,
|
|
const float quad_v,
|
|
float *r_corner_u,
|
|
float *r_corner_v)
|
|
{
|
|
int corner;
|
|
if (quad_u <= 0.5f && quad_v <= 0.5f) {
|
|
corner = 0;
|
|
*r_corner_u = 2.0f * quad_u;
|
|
*r_corner_v = 2.0f * quad_v;
|
|
}
|
|
else if (quad_u > 0.5f && quad_v <= 0.5f) {
|
|
corner = 1;
|
|
*r_corner_u = 2.0f * quad_v;
|
|
*r_corner_v = 2.0f * (1.0f - quad_u);
|
|
}
|
|
else if (quad_u > 0.5f && quad_v > 0.5f) {
|
|
corner = 2;
|
|
*r_corner_u = 2.0f * (1.0f - quad_u);
|
|
*r_corner_v = 2.0f * (1.0f - quad_v);
|
|
}
|
|
else {
|
|
BLI_assert(quad_u <= 0.5f && quad_v >= 0.5f);
|
|
corner = 3;
|
|
*r_corner_u = 2.0f * (1.0f - quad_v);
|
|
*r_corner_v = 2.0f * quad_u;
|
|
}
|
|
return corner;
|
|
}
|
|
|
|
BLI_INLINE void BKE_subdiv_rotate_grid_to_quad(
|
|
const int corner, const float grid_u, const float grid_v, float *r_quad_u, float *r_quad_v)
|
|
{
|
|
if (corner == 0) {
|
|
*r_quad_u = 0.5f - grid_v * 0.5f;
|
|
*r_quad_v = 0.5f - grid_u * 0.5f;
|
|
}
|
|
else if (corner == 1) {
|
|
*r_quad_u = 0.5f + grid_u * 0.5f;
|
|
*r_quad_v = 0.5f - grid_v * 0.5f;
|
|
}
|
|
else if (corner == 2) {
|
|
*r_quad_u = 0.5f + grid_v * 0.5f;
|
|
*r_quad_v = 0.5f + grid_u * 0.5f;
|
|
}
|
|
else {
|
|
BLI_assert(corner == 3);
|
|
*r_quad_u = 0.5f - grid_u * 0.5f;
|
|
*r_quad_v = 0.5f + grid_v * 0.5f;
|
|
}
|
|
}
|
|
|
|
BLI_INLINE float BKE_subdiv_crease_to_sharpness_f(float edge_crease)
|
|
{
|
|
return edge_crease * edge_crease * 10.0f;
|
|
}
|