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/engines/workbench/workbench_studiolight.c
diff options
context:
space:
mode:
Diffstat (limited to 'source/blender/draw/engines/workbench/workbench_studiolight.c')
-rw-r--r--source/blender/draw/engines/workbench/workbench_studiolight.c257
1 files changed, 0 insertions, 257 deletions
diff --git a/source/blender/draw/engines/workbench/workbench_studiolight.c b/source/blender/draw/engines/workbench/workbench_studiolight.c
deleted file mode 100644
index 1fb0b394cb1..00000000000
--- a/source/blender/draw/engines/workbench/workbench_studiolight.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * 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.
- *
- * Copyright 2016, Blender Foundation.
- */
-
-/** \file
- * \ingroup draw_engine
- */
-#include "BKE_studiolight.h"
-
-#include "workbench_private.h"
-
-#include "BKE_object.h"
-
-#include "BLI_math.h"
-
-void studiolight_update_world(WORKBENCH_PrivateData *wpd,
- StudioLight *studiolight,
- WORKBENCH_UBO_World *wd)
-{
- float view_matrix[4][4], rot_matrix[4][4];
- DRW_view_viewmat_get(NULL, view_matrix, false);
-
- if (USE_WORLD_ORIENTATION(wpd)) {
- axis_angle_to_mat4_single(rot_matrix, 'Z', -wpd->shading.studiolight_rot_z);
- mul_m4_m4m4(rot_matrix, view_matrix, rot_matrix);
- swap_v3_v3(rot_matrix[2], rot_matrix[1]);
- negate_v3(rot_matrix[2]);
- }
- else {
- unit_m4(rot_matrix);
- }
-
- if (U.edit_studio_light) {
- studiolight = BKE_studiolight_studio_edit_get();
- }
-
- /* Studio Lights. */
- for (int i = 0; i < 4; i++) {
- WORKBENCH_UBO_Light *light = &wd->lights[i];
-
- SolidLight *sl = &studiolight->light[i];
- if (sl->flag) {
- copy_v3_v3(light->light_direction, sl->vec);
- mul_mat3_m4_v3(rot_matrix, light->light_direction);
- /* We should predivide the power by PI but that makes the lights really dim. */
- copy_v3_v3(light->specular_color, sl->spec);
- copy_v3_v3(light->diffuse_color, sl->col);
- light->wrapped = sl->smooth;
- }
- else {
- copy_v3_fl3(light->light_direction, 1.0f, 0.0f, 0.0f);
- copy_v3_fl(light->specular_color, 0.0f);
- copy_v3_fl(light->diffuse_color, 0.0f);
- }
- }
-
- copy_v3_v3(wd->ambient_color, studiolight->light_ambient);
-}
-
-static void compute_parallel_lines_nor_and_dist(const float v1[2],
- const float v2[2],
- const float v3[2],
- float r_line[4])
-{
- sub_v2_v2v2(r_line, v2, v1);
- /* Find orthogonal vector. */
- SWAP(float, r_line[0], r_line[1]);
- r_line[0] = -r_line[0];
- /* Edge distances. */
- r_line[2] = dot_v2v2(r_line, v1);
- r_line[3] = dot_v2v2(r_line, v3);
- /* Make sure r_line[2] is the minimum. */
- if (r_line[2] > r_line[3]) {
- SWAP(float, r_line[2], r_line[3]);
- }
-}
-
-void studiolight_update_light(WORKBENCH_PrivateData *wpd, const float light_direction[3])
-{
- wpd->shadow_changed = !compare_v3v3(wpd->cached_shadow_direction, light_direction, 1e-5f);
-
- if (wpd->shadow_changed) {
- float up[3] = {0.0f, 0.0f, 1.0f};
- unit_m4(wpd->shadow_mat);
-
- /* TODO fix singularity. */
- copy_v3_v3(wpd->shadow_mat[2], light_direction);
- cross_v3_v3v3(wpd->shadow_mat[0], wpd->shadow_mat[2], up);
- normalize_v3(wpd->shadow_mat[0]);
- cross_v3_v3v3(wpd->shadow_mat[1], wpd->shadow_mat[2], wpd->shadow_mat[0]);
-
- invert_m4_m4(wpd->shadow_inv, wpd->shadow_mat);
-
- copy_v3_v3(wpd->cached_shadow_direction, light_direction);
- }
-
- float planes[6][4];
- DRW_culling_frustum_planes_get(NULL, planes);
- /* we only need the far plane. */
- copy_v4_v4(wpd->shadow_far_plane, planes[2]);
-
- BoundBox frustum_corners;
- DRW_culling_frustum_corners_get(NULL, &frustum_corners);
-
- mul_v3_mat3_m4v3(wpd->shadow_near_corners[0], wpd->shadow_inv, frustum_corners.vec[0]);
- mul_v3_mat3_m4v3(wpd->shadow_near_corners[1], wpd->shadow_inv, frustum_corners.vec[3]);
- mul_v3_mat3_m4v3(wpd->shadow_near_corners[2], wpd->shadow_inv, frustum_corners.vec[7]);
- mul_v3_mat3_m4v3(wpd->shadow_near_corners[3], wpd->shadow_inv, frustum_corners.vec[4]);
-
- INIT_MINMAX(wpd->shadow_near_min, wpd->shadow_near_max);
- for (int i = 0; i < 4; i++) {
- minmax_v3v3_v3(wpd->shadow_near_min, wpd->shadow_near_max, wpd->shadow_near_corners[i]);
- }
-
- compute_parallel_lines_nor_and_dist(wpd->shadow_near_corners[0],
- wpd->shadow_near_corners[1],
- wpd->shadow_near_corners[2],
- wpd->shadow_near_sides[0]);
- compute_parallel_lines_nor_and_dist(wpd->shadow_near_corners[1],
- wpd->shadow_near_corners[2],
- wpd->shadow_near_corners[0],
- wpd->shadow_near_sides[1]);
-}
-
-static BoundBox *studiolight_object_shadow_bbox_get(WORKBENCH_PrivateData *wpd,
- Object *ob,
- WORKBENCH_ObjectData *oed)
-{
- if ((oed->shadow_bbox_dirty) || (wpd->shadow_changed)) {
- float tmp_mat[4][4];
- mul_m4_m4m4(tmp_mat, wpd->shadow_inv, ob->obmat);
-
- /* Get AABB in shadow space. */
- INIT_MINMAX(oed->shadow_min, oed->shadow_max);
-
- /* From object space to shadow space */
- BoundBox *bbox = BKE_object_boundbox_get(ob);
- for (int i = 0; i < 8; i++) {
- float corner[3];
- mul_v3_m4v3(corner, tmp_mat, bbox->vec[i]);
- minmax_v3v3_v3(oed->shadow_min, oed->shadow_max, corner);
- }
- oed->shadow_depth = oed->shadow_max[2] - oed->shadow_min[2];
- /* Extend towards infinity. */
- oed->shadow_max[2] += 1e4f;
-
- /* Get extended AABB in world space. */
- BKE_boundbox_init_from_minmax(&oed->shadow_bbox, oed->shadow_min, oed->shadow_max);
- for (int i = 0; i < 8; i++) {
- mul_m4_v3(wpd->shadow_mat, oed->shadow_bbox.vec[i]);
- }
- oed->shadow_bbox_dirty = false;
- }
-
- return &oed->shadow_bbox;
-}
-
-bool studiolight_object_cast_visible_shadow(WORKBENCH_PrivateData *wpd,
- Object *ob,
- WORKBENCH_ObjectData *oed)
-{
- BoundBox *shadow_bbox = studiolight_object_shadow_bbox_get(wpd, ob, oed);
- const DRWView *default_view = DRW_view_default_get();
- return DRW_culling_box_test(default_view, shadow_bbox);
-}
-
-float studiolight_object_shadow_distance(WORKBENCH_PrivateData *wpd,
- Object *ob,
- WORKBENCH_ObjectData *oed)
-{
- BoundBox *shadow_bbox = studiolight_object_shadow_bbox_get(wpd, ob, oed);
-
- int corners[4] = {0, 3, 4, 7};
- float dist = 1e4f, dist_isect;
- for (int i = 0; i < 4; i++) {
- if (isect_ray_plane_v3(shadow_bbox->vec[corners[i]],
- wpd->cached_shadow_direction,
- wpd->shadow_far_plane,
- &dist_isect,
- true)) {
- if (dist_isect < dist) {
- dist = dist_isect;
- }
- }
- else {
- /* All rays are parallels. If one fails, the other will too. */
- break;
- }
- }
- return max_ii(dist - oed->shadow_depth, 0);
-}
-
-bool studiolight_camera_in_object_shadow(WORKBENCH_PrivateData *wpd,
- Object *ob,
- WORKBENCH_ObjectData *oed)
-{
- /* Just to be sure the min, max are updated. */
- studiolight_object_shadow_bbox_get(wpd, ob, oed);
-
- /* Test if near plane is in front of the shadow. */
- if (oed->shadow_min[2] > wpd->shadow_near_max[2]) {
- return false;
- }
-
- /* Separation Axis Theorem test */
-
- /* Test bbox sides first (faster) */
- if ((oed->shadow_min[0] > wpd->shadow_near_max[0]) ||
- (oed->shadow_max[0] < wpd->shadow_near_min[0]) ||
- (oed->shadow_min[1] > wpd->shadow_near_max[1]) ||
- (oed->shadow_max[1] < wpd->shadow_near_min[1])) {
- return false;
- }
-
- /* Test projected near rectangle sides */
- const float pts[4][2] = {
- {oed->shadow_min[0], oed->shadow_min[1]},
- {oed->shadow_min[0], oed->shadow_max[1]},
- {oed->shadow_max[0], oed->shadow_min[1]},
- {oed->shadow_max[0], oed->shadow_max[1]},
- };
-
- for (int i = 0; i < 2; i++) {
- float min_dst = FLT_MAX, max_dst = -FLT_MAX;
- for (int j = 0; j < 4; j++) {
- float dst = dot_v2v2(wpd->shadow_near_sides[i], pts[j]);
- /* Do min max */
- if (min_dst > dst) {
- min_dst = dst;
- }
- if (max_dst < dst) {
- max_dst = dst;
- }
- }
-
- if ((wpd->shadow_near_sides[i][2] > max_dst) || (wpd->shadow_near_sides[i][3] < min_dst)) {
- return false;
- }
- }
-
- /* No separation axis found. Both shape intersect. */
- return true;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-13 17:44:53 +0300