Page MenuHome
Differential D14295 Diff 49121 source/blender/nodes/geometry/nodes/node_geo_image_texture.cc

Changeset View

Standalone View

View Options

source/blender/nodes/geometry/nodes/node_geo_image_texture.cc

/* SPDX-License-Identifier: GPL-2.0-or-later /* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2005 Blender Foundation. All rights reserved. */ * Copyright 2005 Blender Foundation. All rights reserved. */
#include "node_geometry_util.hh" #include "node_geometry_util.hh"
#include "BKE_image.h" #include "BKE_image.h"
#include "BLI_math_vec_types.hh" #include "BLI_math_vec_types.hh"
#include "BLI_threads.h" #include "BLI_threads.h"
#include "BLI_timeit.hh" #include "BLI_timeit.hh"
#include "DNA_texture_types.h"
#include "IMB_colormanagement.h" #include "IMB_colormanagement.h"
#include "IMB_imbuf.h" #include "IMB_imbuf.h"
#include "IMB_imbuf_types.h" #include "IMB_imbuf_types.h"
#include "UI_interface.h" #include "UI_interface.h"
#include "UI_resources.h" #include "UI_resources.h"
namespace blender::nodes::node_geo_image_texture_cc { namespace blender::nodes::node_geo_image_texture_cc {
▲ Show 20 Lines • Show All 102 Lines • ▼ Show 20 Lines public:
static float frac(const float x, int *ix) static float frac(const float x, int *ix)
{ {
const int i = (int)x - ((x < 0.0f) ? 1 : 0); const int i = (int)x - ((x < 0.0f) ? 1 : 0);
*ix = i; *ix = i;
return x - (float)i; return x - (float)i;
} }
#define ERROR_COLOR float4(0.0f, 0.0f, 0.0f, 0.0f)
static float4 image_cubic_texture_lookup(const ImBuf *ibuf, static float4 image_cubic_texture_lookup(const ImBuf *ibuf,
const float px, const float px,
const float py, const float py,
const int extension) const int extension)
{ {
const int width = ibuf->x; const int width = ibuf->x;
const int height = ibuf->y; const int height = ibuf->y;
int pix, piy, nix, niy; int pix, piy, nix, niy;
const float tx = frac(px * (float)width - 0.5f, &pix); const float tx = frac(px * (float)width - 0.5f, &pix);
const float ty = frac(py * (float)height - 0.5f, &piy); const float ty = frac(py * (float)height - 0.5f, &piy);
int ppix, ppiy, nnix, nniy; int ppix, ppiy, nnix, nniy;
switch (extension) { switch (extension) {
case SHD_IMAGE_EXTENSION_REPEAT: { case IMAGE_TEX_EXT_REPEAT:
pix = wrap_periodic(pix, width);
piy = wrap_periodic(piy, height);
ppix = wrap_periodic(pix - 1, width); ppix = wrap_periodic(pix - 1, width);
ppiy = wrap_periodic(piy - 1, height);
nix = wrap_periodic(pix + 1, width); nix = wrap_periodic(pix + 1, width);
niy = wrap_periodic(piy + 1, height);
nnix = wrap_periodic(pix + 2, width); nnix = wrap_periodic(pix + 2, width);
pix = wrap_periodic(pix, width);
ppiy = wrap_periodic(piy - 1, height);
niy = wrap_periodic(piy + 1, height);
nniy = wrap_periodic(piy + 2, height); nniy = wrap_periodic(piy + 2, height);
piy = wrap_periodic(piy, height);
break; break;
} case IMAGE_TEX_EXT_CLIP:
case SHD_IMAGE_EXTENSION_CLIP: {
ppix = pix - 1; ppix = pix - 1;
ppiy = piy - 1;
nix = pix + 1; nix = pix + 1;
niy = piy + 1;
nnix = pix + 2; nnix = pix + 2;
ppiy = piy - 1;
niy = piy + 1;
nniy = piy + 2; nniy = piy + 2;
break; break;
} case IMAGE_TEX_EXT_EXTEND:
case SHD_IMAGE_EXTENSION_EXTEND: {
ppix = wrap_clamp(pix - 1, width); ppix = wrap_clamp(pix - 1, width);
ppiy = wrap_clamp(piy - 1, height);
nix = wrap_clamp(pix + 1, width); nix = wrap_clamp(pix + 1, width);
niy = wrap_clamp(piy + 1, height);
nnix = wrap_clamp(pix + 2, width); nnix = wrap_clamp(pix + 2, width);
nniy = wrap_clamp(piy + 2, height);
pix = wrap_clamp(pix, width); pix = wrap_clamp(pix, width);
ppiy = wrap_clamp(piy - 1, height);
niy = wrap_clamp(piy + 1, height);
nniy = wrap_clamp(piy + 2, height);
piy = wrap_clamp(piy, height); piy = wrap_clamp(piy, height);
break; break;
}
default: default:
return float4(0.0f, 0.0f, 0.0f, 0.0f); BLI_assert_unreachable();
return ERROR_COLOR;
} }
const int xc[4] = {ppix, pix, nix, nnix}; const int xc[4] = {ppix, pix, nix, nnix};
const int yc[4] = {ppiy, piy, niy, nniy}; const int yc[4] = {ppiy, piy, niy, nniy};
float u[4], v[4]; float u[4], v[4];
u[0] = (((-1.0f / 6.0f) * tx + 0.5f) * tx - 0.5f) * tx + (1.0f / 6.0f); u[0] = (((-1.0f / 6.0f) * tx + 0.5f) * tx - 0.5f) * tx + (1.0f / 6.0f);
u[1] = ((0.5f * tx - 1.0f) * tx) * tx + (2.0f / 3.0f); u[1] = ((0.5f * tx - 1.0f) * tx) * tx + (2.0f / 3.0f);
Show All 30 Lines#define ERROR_COLOR float4(0.0f, 0.0f, 0.0f, 0.0f)
{ {
const int width = ibuf->x; const int width = ibuf->x;
const int height = ibuf->y; const int height = ibuf->y;
int pix, piy, nix, niy; int pix, piy, nix, niy;
const float nfx = frac(px * (float)width - 0.5f, &pix); const float nfx = frac(px * (float)width - 0.5f, &pix);
const float nfy = frac(py * (float)height - 0.5f, &piy); const float nfy = frac(py * (float)height - 0.5f, &piy);
switch (extension) { switch (extension) {
case SHD_IMAGE_EXTENSION_CLIP: { case IMAGE_TEX_EXT_REPEAT:
nix = wrap_periodic(pix + 1, width);
pix = wrap_periodic(pix, width);
niy = wrap_periodic(piy + 1, height);
piy = wrap_periodic(piy, height);
break;
case IMAGE_TEX_EXT_CLIP:
nix = pix + 1; nix = pix + 1;
niy = piy + 1; niy = piy + 1;
break; break;
} case IMAGE_TEX_EXT_EXTEND:
case SHD_IMAGE_EXTENSION_EXTEND: {
nix = wrap_clamp(pix + 1, width); nix = wrap_clamp(pix + 1, width);
niy = wrap_clamp(piy + 1, height);
pix = wrap_clamp(pix, width); pix = wrap_clamp(pix, width);
niy = wrap_clamp(piy + 1, height);
piy = wrap_clamp(piy, height); piy = wrap_clamp(piy, height);
break; break;
}
default: default:
case SHD_IMAGE_EXTENSION_REPEAT: BLI_assert_unreachable();
pix = wrap_periodic(pix, width); return ERROR_COLOR;
piy = wrap_periodic(piy, height);
nix = wrap_periodic(pix + 1, width);
niy = wrap_periodic(piy + 1, height);
break;
} }
const float ptx = 1.0f - nfx; const float ptx = 1.0f - nfx;
const float pty = 1.0f - nfy; const float pty = 1.0f - nfy;
return image_pixel_lookup(ibuf, pix, piy) * ptx * pty + return image_pixel_lookup(ibuf, pix, piy) * ptx * pty +
image_pixel_lookup(ibuf, nix, piy) * nfx * pty + image_pixel_lookup(ibuf, nix, piy) * nfx * pty +
image_pixel_lookup(ibuf, pix, niy) * ptx * nfy + image_pixel_lookup(ibuf, pix, niy) * ptx * nfy +
image_pixel_lookup(ibuf, nix, niy) * nfx * nfy; image_pixel_lookup(ibuf, nix, niy) * nfx * nfy;
} }
static float4 image_closest_texture_lookup(const ImBuf *ibuf, static float4 image_closest_texture_lookup(const ImBuf *ibuf,
const float px, const float px,
const float py, const float py,
const int extension) const int extension)
{ {
const int width = ibuf->x; const int width = ibuf->x;
const int height = ibuf->y; const int height = ibuf->y;
int ix, iy; int ix, iy;
const float tx = frac(px * (float)width - 0.5f, &ix); const float tx = frac(px * (float)width, &ix);
const float ty = frac(py * (float)height - 0.5f, &iy); const float ty = frac(py * (float)height, &iy);
switch (extension) { switch (extension) {
case SHD_IMAGE_EXTENSION_REPEAT: { case IMAGE_TEX_EXT_REPEAT:
ix = wrap_periodic(ix, width); ix = wrap_periodic(ix, width);
iy = wrap_periodic(iy, height); iy = wrap_periodic(iy, height);
return image_pixel_lookup(ibuf, ix, iy); break;
} case IMAGE_TEX_EXT_CLIP:
case SHD_IMAGE_EXTENSION_CLIP: { if (px < 0.0f || px > 1.0f || py < 0.0f || py > 1.0f) {
if (tx < 0.0f || ty < 0.0f || tx > 1.0f || ty > 1.0f) {
return float4(0.0f, 0.0f, 0.0f, 0.0f);
}
if (ix < 0 || iy < 0 || ix > width || iy > height) {
return float4(0.0f, 0.0f, 0.0f, 0.0f); return float4(0.0f, 0.0f, 0.0f, 0.0f);
} }
ATTR_FALLTHROUGH; break;
} case IMAGE_TEX_EXT_EXTEND:
case SHD_IMAGE_EXTENSION_EXTEND: {
ix = wrap_clamp(ix, width); ix = wrap_clamp(ix, width);
iy = wrap_clamp(iy, height); iy = wrap_clamp(iy, height);
return image_pixel_lookup(ibuf, ix, iy); break;
}
default: default:
return float4(0.0f, 0.0f, 0.0f, 0.0f); BLI_assert_unreachable();
return ERROR_COLOR;
} }
return image_pixel_lookup(ibuf, ix, iy);
} }
void call(IndexMask mask, fn::MFParams params, fn::MFContext UNUSED(context)) const override void call(IndexMask mask, fn::MFParams params, fn::MFContext UNUSED(context)) const override
{ {
const VArray<float3> &vectors = params.readonly_single_input<float3>(0, "Vector"); const VArray<float3> &vectors = params.readonly_single_input<float3>(0, "Vector");
MutableSpan<ColorGeometry4f> r_color = params.uninitialized_single_output<ColorGeometry4f>( MutableSpan<ColorGeometry4f> r_color = params.uninitialized_single_output<ColorGeometry4f>(
1, "Color"); 1, "Color");
MutableSpan<float> r_alpha = params.uninitialized_single_output_if_required<float>(2, "Alpha"); MutableSpan<float> r_alpha = params.uninitialized_single_output_if_required<float>(2, "Alpha");
MutableSpan<float4> color_data{(float4 *)r_color.data(), r_color.size()}; MutableSpan<float4> color_data{(float4 *)r_color.data(), r_color.size()};
/* Sample image texture. */ /* Sample image texture. */
switch (interpolation_) { switch (interpolation_) {
case SHD_INTERP_LINEAR: case IMAGE_TEX_INTERP_LINEAR:
for (const int64_t i : mask) { for (const int64_t i : mask) {
const float3 p = vectors[i]; const float3 p = vectors[i];
color_data[i] = image_linear_texture_lookup(image_buffer_, p.x, p.y, extension_); color_data[i] = image_linear_texture_lookup(image_buffer_, p.x, p.y, extension_);
} }
break; break;
case SHD_INTERP_CLOSEST: case IMAGE_TEX_INTERP_CLOSEST:
for (const int64_t i : mask) { for (const int64_t i : mask) {
const float3 p = vectors[i]; const float3 p = vectors[i];
color_data[i] = image_closest_texture_lookup(image_buffer_, p.x, p.y, extension_); color_data[i] = image_closest_texture_lookup(image_buffer_, p.x, p.y, extension_);
} }
break; break;
case SHD_INTERP_CUBIC: case IMAGE_TEX_INTERP_CUBIC:
case SHD_INTERP_SMART: case IMAGE_TEX_INTERP_SMART:
for (const int64_t i : mask) { for (const int64_t i : mask) {
const float3 p = vectors[i]; const float3 p = vectors[i];
color_data[i] = image_cubic_texture_lookup(image_buffer_, p.x, p.y, extension_); color_data[i] = image_cubic_texture_lookup(image_buffer_, p.x, p.y, extension_);
} }
break; break;
} }
int alpha_mode = image_.alpha_mode; int alpha_mode = image_.alpha_mode;
▲ Show 20 Lines • Show All 92 Lines • Show Last 20 Lines