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
path: root/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_lnor.cc
diff options
context:
space:
mode:
Diffstat (limited to 'source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_lnor.cc')
-rw-r--r--source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_lnor.cc228
1 files changed, 228 insertions, 0 deletions
diff --git a/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_lnor.cc b/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_lnor.cc
new file mode 100644
index 00000000000..b942068352b
--- /dev/null
+++ b/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_lnor.cc
@@ -0,0 +1,228 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2021 by Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup draw
+ */
+
+#include "draw_cache_extract_mesh_private.h"
+
+namespace blender::draw {
+
+/* ---------------------------------------------------------------------- */
+/** \name Extract Loop Normal
+ * \{ */
+
+static void extract_lnor_init(const MeshRenderData *mr,
+ struct MeshBatchCache *UNUSED(cache),
+ void *buf,
+ void *tls_data)
+{
+ GPUVertBuf *vbo = static_cast<GPUVertBuf *>(buf);
+ static GPUVertFormat format = {0};
+ if (format.attr_len == 0) {
+ GPU_vertformat_attr_add(&format, "nor", GPU_COMP_I10, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
+ GPU_vertformat_alias_add(&format, "lnor");
+ }
+ GPU_vertbuf_init_with_format(vbo, &format);
+ GPU_vertbuf_data_alloc(vbo, mr->loop_len);
+
+ *(GPUPackedNormal **)tls_data = static_cast<GPUPackedNormal *>(GPU_vertbuf_get_data(vbo));
+}
+
+static void extract_lnor_iter_poly_bm(const MeshRenderData *mr,
+ const BMFace *f,
+ const int UNUSED(f_index),
+ void *data)
+{
+ BMLoop *l_iter, *l_first;
+ l_iter = l_first = BM_FACE_FIRST_LOOP(f);
+ do {
+ const int l_index = BM_elem_index_get(l_iter);
+ if (mr->loop_normals) {
+ (*(GPUPackedNormal **)data)[l_index] = GPU_normal_convert_i10_v3(mr->loop_normals[l_index]);
+ }
+ else {
+ if (BM_elem_flag_test(f, BM_ELEM_SMOOTH)) {
+ (*(GPUPackedNormal **)data)[l_index] = GPU_normal_convert_i10_v3(
+ bm_vert_no_get(mr, l_iter->v));
+ }
+ else {
+ (*(GPUPackedNormal **)data)[l_index] = GPU_normal_convert_i10_v3(bm_face_no_get(mr, f));
+ }
+ }
+ (*(GPUPackedNormal **)data)[l_index].w = BM_elem_flag_test(f, BM_ELEM_HIDDEN) ? -1 : 0;
+ } while ((l_iter = l_iter->next) != l_first);
+}
+
+static void extract_lnor_iter_poly_mesh(const MeshRenderData *mr,
+ const MPoly *mp,
+ const int mp_index,
+ void *data)
+{
+ const MLoop *mloop = mr->mloop;
+ const int ml_index_end = mp->loopstart + mp->totloop;
+ for (int ml_index = mp->loopstart; ml_index < ml_index_end; ml_index += 1) {
+ const MLoop *ml = &mloop[ml_index];
+ GPUPackedNormal *lnor_data = &(*(GPUPackedNormal **)data)[ml_index];
+ if (mr->loop_normals) {
+ *lnor_data = GPU_normal_convert_i10_v3(mr->loop_normals[ml_index]);
+ }
+ else if (mp->flag & ME_SMOOTH) {
+ *lnor_data = GPU_normal_convert_i10_s3(mr->mvert[ml->v].no);
+ }
+ else {
+ *lnor_data = GPU_normal_convert_i10_v3(mr->poly_normals[mp_index]);
+ }
+
+ /* Flag for paint mode overlay.
+ * Only use MR_EXTRACT_MAPPED in edit mode where it is used to display the edge-normals.
+ * In paint mode it will use the un-mapped data to draw the wire-frame. */
+ if (mp->flag & ME_HIDE || (mr->edit_bmesh && mr->extract_type == MR_EXTRACT_MAPPED &&
+ (mr->v_origindex) && mr->v_origindex[ml->v] == ORIGINDEX_NONE)) {
+ lnor_data->w = -1;
+ }
+ else if (mp->flag & ME_FACE_SEL) {
+ lnor_data->w = 1;
+ }
+ else {
+ lnor_data->w = 0;
+ }
+ }
+}
+
+constexpr MeshExtract create_extractor_lnor()
+{
+ MeshExtract extractor = {nullptr};
+ extractor.init = extract_lnor_init;
+ extractor.iter_poly_bm = extract_lnor_iter_poly_bm;
+ extractor.iter_poly_mesh = extract_lnor_iter_poly_mesh;
+ extractor.data_type = MR_DATA_LOOP_NOR;
+ extractor.data_size = sizeof(GPUPackedNormal *);
+ extractor.use_threading = true;
+ extractor.mesh_buffer_offset = offsetof(MeshBufferCache, vbo.lnor);
+ return extractor;
+}
+
+/** \} */
+/* ---------------------------------------------------------------------- */
+/** \name Extract HQ Loop Normal
+ * \{ */
+
+struct gpuHQNor {
+ short x, y, z, w;
+};
+
+static void extract_lnor_hq_init(const MeshRenderData *mr,
+ struct MeshBatchCache *UNUSED(cache),
+ void *buf,
+ void *tls_data)
+{
+ GPUVertBuf *vbo = static_cast<GPUVertBuf *>(buf);
+ static GPUVertFormat format = {0};
+ if (format.attr_len == 0) {
+ GPU_vertformat_attr_add(&format, "nor", GPU_COMP_I16, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
+ GPU_vertformat_alias_add(&format, "lnor");
+ }
+ GPU_vertbuf_init_with_format(vbo, &format);
+ GPU_vertbuf_data_alloc(vbo, mr->loop_len);
+
+ *(gpuHQNor **)tls_data = static_cast<gpuHQNor *>(GPU_vertbuf_get_data(vbo));
+}
+
+static void extract_lnor_hq_iter_poly_bm(const MeshRenderData *mr,
+ const BMFace *f,
+ const int UNUSED(f_index),
+ void *data)
+{
+ BMLoop *l_iter, *l_first;
+ l_iter = l_first = BM_FACE_FIRST_LOOP(f);
+ do {
+ const int l_index = BM_elem_index_get(l_iter);
+ if (mr->loop_normals) {
+ normal_float_to_short_v3(&(*(gpuHQNor **)data)[l_index].x, mr->loop_normals[l_index]);
+ }
+ else {
+ if (BM_elem_flag_test(f, BM_ELEM_SMOOTH)) {
+ normal_float_to_short_v3(&(*(gpuHQNor **)data)[l_index].x, bm_vert_no_get(mr, l_iter->v));
+ }
+ else {
+ normal_float_to_short_v3(&(*(gpuHQNor **)data)[l_index].x, bm_face_no_get(mr, f));
+ }
+ }
+ } while ((l_iter = l_iter->next) != l_first);
+}
+
+static void extract_lnor_hq_iter_poly_mesh(const MeshRenderData *mr,
+ const MPoly *mp,
+ const int mp_index,
+ void *data)
+{
+ const MLoop *mloop = mr->mloop;
+ const int ml_index_end = mp->loopstart + mp->totloop;
+ for (int ml_index = mp->loopstart; ml_index < ml_index_end; ml_index += 1) {
+ const MLoop *ml = &mloop[ml_index];
+ gpuHQNor *lnor_data = &(*(gpuHQNor **)data)[ml_index];
+ if (mr->loop_normals) {
+ normal_float_to_short_v3(&lnor_data->x, mr->loop_normals[ml_index]);
+ }
+ else if (mp->flag & ME_SMOOTH) {
+ copy_v3_v3_short(&lnor_data->x, mr->mvert[ml->v].no);
+ }
+ else {
+ normal_float_to_short_v3(&lnor_data->x, mr->poly_normals[mp_index]);
+ }
+
+ /* Flag for paint mode overlay.
+ * Only use #MR_EXTRACT_MAPPED in edit mode where it is used to display the edge-normals.
+ * In paint mode it will use the un-mapped data to draw the wire-frame. */
+ if (mp->flag & ME_HIDE || (mr->edit_bmesh && mr->extract_type == MR_EXTRACT_MAPPED &&
+ (mr->v_origindex) && mr->v_origindex[ml->v] == ORIGINDEX_NONE)) {
+ lnor_data->w = -1;
+ }
+ else if (mp->flag & ME_FACE_SEL) {
+ lnor_data->w = 1;
+ }
+ else {
+ lnor_data->w = 0;
+ }
+ }
+}
+
+constexpr MeshExtract create_extractor_lnor_hq()
+{
+ MeshExtract extractor = {nullptr};
+ extractor.init = extract_lnor_hq_init;
+ extractor.iter_poly_bm = extract_lnor_hq_iter_poly_bm;
+ extractor.iter_poly_mesh = extract_lnor_hq_iter_poly_mesh;
+ extractor.data_type = MR_DATA_LOOP_NOR;
+ extractor.data_size = sizeof(gpuHQNor *);
+ extractor.use_threading = true;
+ extractor.mesh_buffer_offset = offsetof(MeshBufferCache, vbo.lnor);
+ return extractor;
+}
+
+/** \} */
+
+} // namespace blender::draw
+
+extern "C" {
+const MeshExtract extract_lnor = blender::draw::create_extractor_lnor();
+const MeshExtract extract_lnor_hq = blender::draw::create_extractor_lnor_hq();
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 11:12:38 +0300