diff options
Diffstat (limited to 'source/blender/draw/engines/overlay/overlay_mode_transfer.c')
-rw-r--r-- | source/blender/draw/engines/overlay/overlay_mode_transfer.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_mode_transfer.c b/source/blender/draw/engines/overlay/overlay_mode_transfer.c new file mode 100644 index 00000000000..253f606b086 --- /dev/null +++ b/source/blender/draw/engines/overlay/overlay_mode_transfer.c @@ -0,0 +1,159 @@ +/* + * 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 2021, Blender Foundation. + */ + +/** \file + * \ingroup draw_engine + */ + +#include "BKE_paint.h" +#include "DRW_render.h" + +#include "ED_view3d.h" + +#include "PIL_time.h" +#include "UI_resources.h" + +#include "overlay_private.h" + +void OVERLAY_mode_transfer_cache_init(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + OVERLAY_PrivateData *pd = vedata->stl->pd; + + pd->mode_transfer.time = PIL_check_seconds_timer(); + + for (int i = 0; i < 2; i++) { + /* Non Meshes Pass (Camera, empties, lights ...) */ + DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL | DRW_STATE_BLEND_ALPHA; + DRW_PASS_CREATE(psl->mode_transfer_ps[i], state | pd->clipping_state); + } +} + +#define MODE_TRANSFER_FLASH_LENGTH 0.55f +/* TODO(pablodp606): Remove this option for 3.0 if fade in/out is not used. */ +#define MODE_TRANSFER_FLASH_FADE 0.0f +#define MODE_TRANSFER_FLASH_MAX_ALPHA 0.25f + +static bool mode_transfer_is_animation_running(const float anim_time) +{ + return anim_time >= 0.0f && anim_time <= MODE_TRANSFER_FLASH_LENGTH; +} + +static float mode_transfer_alpha_for_animation_time_get(const float anim_time) +{ + if (anim_time > MODE_TRANSFER_FLASH_LENGTH) { + return 0.0f; + } + + if (anim_time < 0.0f) { + return 0.0f; + } + + if (MODE_TRANSFER_FLASH_FADE <= 0.0f) { + return (1.0f - (anim_time / MODE_TRANSFER_FLASH_LENGTH)) * MODE_TRANSFER_FLASH_MAX_ALPHA; + } + + const float flash_fade_in_time = MODE_TRANSFER_FLASH_LENGTH * MODE_TRANSFER_FLASH_FADE; + const float flash_fade_out_time = MODE_TRANSFER_FLASH_LENGTH - flash_fade_in_time; + + float alpha = 0.0f; + if (anim_time < flash_fade_in_time) { + alpha = anim_time / flash_fade_in_time; + } + else { + const float fade_out_anim_time = anim_time - flash_fade_in_time; + alpha = 1.0f - (fade_out_anim_time / flash_fade_out_time); + } + + return alpha * MODE_TRANSFER_FLASH_MAX_ALPHA; +} + +void OVERLAY_mode_transfer_cache_populate(OVERLAY_Data *vedata, Object *ob) +{ + OVERLAY_PrivateData *pd = vedata->stl->pd; + OVERLAY_PassList *psl = vedata->psl; + + if (pd->xray_enabled) { + return; + } + + const float animation_time = pd->mode_transfer.time - + ob->runtime.overlay_mode_transfer_start_time; + + if (!mode_transfer_is_animation_running(animation_time)) { + return; + } + + const DRWContextState *draw_ctx = DRW_context_state_get(); + const bool use_sculpt_pbvh = BKE_sculptsession_use_pbvh_draw(ob, draw_ctx->v3d) && + !DRW_state_is_image_render(); + const bool is_xray = (ob->dtx & OB_DRAW_IN_FRONT) != 0; + + DRWShadingGroup *mode_transfer_grp[2]; + + for (int i = 0; i < 2; i++) { + GPUShader *sh = OVERLAY_shader_uniform_color(); + mode_transfer_grp[i] = DRW_shgroup_create(sh, psl->mode_transfer_ps[i]); + DRW_shgroup_uniform_block(mode_transfer_grp[i], "globalsBlock", G_draw.block_ubo); + + float color[4]; + UI_GetThemeColor3fv(TH_VERTEX_SELECT, color); + color[3] = mode_transfer_alpha_for_animation_time_get(animation_time); + srgb_to_linearrgb_v4(color, color); + DRW_shgroup_uniform_vec4_copy(mode_transfer_grp[i], "color", color); + } + + if (!pd->use_in_front) { + mode_transfer_grp[IN_FRONT] = mode_transfer_grp[NOT_IN_FRONT]; + } + + pd->mode_transfer.any_animated = true; + + if (use_sculpt_pbvh) { + DRW_shgroup_call_sculpt(mode_transfer_grp[is_xray], ob, false, false); + } + else { + struct GPUBatch *geom = DRW_cache_object_surface_get(ob); + if (geom) { + DRW_shgroup_call(mode_transfer_grp[is_xray], geom, ob); + } + } +} + +void OVERLAY_mode_transfer_draw(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + + DRW_draw_pass(psl->mode_transfer_ps[NOT_IN_FRONT]); +} + +void OVERLAY_mode_transfer_infront_draw(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + + DRW_draw_pass(psl->mode_transfer_ps[IN_FRONT]); +} + +void OVERLAY_mode_transfer_cache_finish(OVERLAY_Data *vedata) +{ + OVERLAY_PrivateData *pd = vedata->stl->pd; + if (pd->mode_transfer.any_animated) { + DRW_viewport_request_redraw(); + } + pd->mode_transfer.any_animated = false; +} |