diff options
Diffstat (limited to 'source/blender/editors/render/render_preview.cc')
| -rw-r--r-- | source/blender/editors/render/render_preview.cc | 123 |
1 files changed, 122 insertions, 1 deletions
diff --git a/source/blender/editors/render/render_preview.cc b/source/blender/editors/render/render_preview.cc index addcedc4481..bb067d57649 100644 --- a/source/blender/editors/render/render_preview.cc +++ b/source/blender/editors/render/render_preview.cc @@ -30,6 +30,7 @@ #include "DNA_brush_types.h" #include "DNA_camera_types.h" #include "DNA_collection_types.h" +#include "DNA_gpencil_types.h" #include "DNA_light_types.h" #include "DNA_material_types.h" #include "DNA_mesh_types.h" @@ -47,6 +48,7 @@ #include "BKE_colortools.h" #include "BKE_context.h" #include "BKE_global.h" +#include "BKE_gpencil.h" #include "BKE_icons.h" #include "BKE_idprop.h" #include "BKE_image.h" @@ -365,6 +367,7 @@ static ID *duplicate_ids(ID *id, const bool allow_failure) case ID_MA: case ID_TE: case ID_LA: + case ID_GD: case ID_WO: { BLI_assert(BKE_previewimg_id_supports_jobs(id)); ID *id_copy = BKE_id_copy_ex(nullptr, @@ -763,6 +766,8 @@ struct ObjectPreviewData { /* Copy of the object to create the preview for. The copy is for thread safety (and to insert * it into its own main). */ Object *object; + /* Datablock copy. Can be nullptr. */ + ID *datablock; /* Current frame. */ int cfra; int sizex; @@ -851,7 +856,7 @@ static void object_preview_render(IconPreview *preview, IconPreviewSize *preview preview_data.pr_main = preview_main; /* Act on a copy. */ preview_data.object = (Object *)preview->id_copy; - preview_data.cfra = preview->scene->r.cfra; + preview_data.datablock = nullptr; preview_data.sizex = preview_sized->sizex; preview_data.sizey = preview_sized->sizey; @@ -1031,6 +1036,119 @@ static void action_preview_render(IconPreview *preview, IconPreviewSize *preview /** \} */ /* -------------------------------------------------------------------- */ +/** \name Grease Pencil Preview + * \{ */ + +static Scene *gpencil_preview_scene_create(const struct ObjectPreviewData *preview_data, + Depsgraph **r_depsgraph) +{ + Scene *scene = BKE_scene_add(preview_data->pr_main, "Object preview scene"); + /* Grease pencil needs to set the scene to the current frame or the strokes + * will not be visible in the preview. */ + CFRA = preview_data->cfra; + ViewLayer *view_layer = (ViewLayer *)scene->view_layers.first; + Depsgraph *depsgraph = DEG_graph_new( + preview_data->pr_main, scene, view_layer, DAG_EVAL_VIEWPORT); + + /* Grease pencil draw engine needs an object to draw the datablock. */ + Object *ob_temp = BKE_object_add_for_data(preview_data->pr_main, + view_layer, + OB_GPENCIL, + "preview_object", + preview_data->datablock, + true); + BLI_assert(ob_temp != nullptr); + /* Copy the materials to get full color previews. */ + const short *materials_len_p = BKE_id_material_len_p(preview_data->datablock); + if (materials_len_p && *materials_len_p > 0) { + BKE_object_materials_test(preview_data->pr_main, ob_temp, preview_data->datablock); + } + + Object *camera_object = object_preview_camera_create(preview_data->pr_main, view_layer, ob_temp); + + scene->camera = camera_object; + scene->r.xsch = preview_data->sizex; + scene->r.ysch = preview_data->sizey; + scene->r.size = 100; + + Base *preview_base = BKE_view_layer_base_find(view_layer, ob_temp); + /* For 'view selected' below. */ + preview_base->flag |= BASE_SELECTED; + + DEG_graph_build_from_view_layer(depsgraph); + DEG_evaluate_on_refresh(depsgraph); + + ED_view3d_camera_to_view_selected(preview_data->pr_main, depsgraph, scene, camera_object); + + BKE_scene_graph_update_tagged(depsgraph, preview_data->pr_main); + + *r_depsgraph = depsgraph; + return scene; +} + +/* Render a grease pencil datablock. As the Draw Engine needs an object, the datablock is assigned + * to a temporary object, just for render. */ +static void gpencil_preview_render(IconPreview *preview, IconPreviewSize *preview_sized) +{ + Main *preview_main = BKE_main_new(); + const float pixelsize_old = U.pixelsize; + char err_out[256] = "unknown"; + + BLI_assert(preview->id_copy && (preview->id_copy != preview->id)); + + /* Find the frame number to make preview visible. */ + int f_min, f_max; + bGPdata *gpd = (bGPdata *)preview->id_copy; + BKE_gpencil_frame_min_max(gpd, &f_min, &f_max); + const int framenum = ((preview->scene->r.cfra < f_min) || (preview->scene->r.cfra > f_max)) ? + f_min : + preview->scene->r.cfra; + + struct ObjectPreviewData preview_data = {}; + preview_data.pr_main = preview_main; + /* Act on a copy. */ + preview_data.object = nullptr; + preview_data.datablock = (ID *)preview->id_copy; + preview_data.cfra = framenum; + preview_data.sizex = preview_sized->sizex; + preview_data.sizey = preview_sized->sizey; + + Depsgraph *depsgraph; + Scene *scene = gpencil_preview_scene_create(&preview_data, &depsgraph); + + U.pixelsize = 2.0f; + + View3DShading shading; + BKE_screen_view3d_shading_init(&shading); + + ImBuf *ibuf = ED_view3d_draw_offscreen_imbuf_simple( + depsgraph, + DEG_get_evaluated_scene(depsgraph), + &shading, + OB_TEXTURE, + DEG_get_evaluated_object(depsgraph, scene->camera), + preview_sized->sizex, + preview_sized->sizey, + IB_rect, + V3D_OFSDRAW_OVERRIDE_SCENE_SETTINGS, + R_ALPHAPREMUL, + nullptr, + nullptr, + err_out); + + U.pixelsize = pixelsize_old; + + if (ibuf) { + icon_copy_rect(ibuf, preview_sized->sizex, preview_sized->sizey, preview_sized->rect); + IMB_freeImBuf(ibuf); + } + + DEG_graph_free(depsgraph); + BKE_main_free(preview_main); +} +/** \} */ + +/* -------------------------------------------------------------------- */ /** \name New Shader Preview System * \{ */ @@ -1634,6 +1752,9 @@ static void icon_preview_startjob_all_sizes(void *customdata, case ID_AC: action_preview_render(ip, cur_size); continue; + case ID_GD: + gpencil_preview_render(ip, cur_size); + continue; default: /* Fall through to the same code as the `ip->id == nullptr` case. */ break; |