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Diffstat (limited to 'source/blender/draw/modes/pose_mode.c')
| -rw-r--r-- | source/blender/draw/modes/pose_mode.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/source/blender/draw/modes/pose_mode.c b/source/blender/draw/modes/pose_mode.c new file mode 100644 index 00000000000..ad9567cd9c0 --- /dev/null +++ b/source/blender/draw/modes/pose_mode.c @@ -0,0 +1,320 @@ +/* + * Copyright 2016, Blender Foundation. + * + * 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. + * + * Contributor(s): Blender Institute + * + */ + +/** \file blender/draw/modes/pose_mode.c + * \ingroup draw + */ +#include "BKE_modifier.h" + +#include "DNA_modifier_types.h" +#include "DNA_view3d_types.h" + +#include "DRW_engine.h" +#include "DRW_render.h" + +/* If builtin shaders are needed */ +#include "GPU_shader.h" + +#include "draw_common.h" + +#include "draw_mode_engines.h" + +extern GlobalsUboStorage ts; + +/* *********** LISTS *********** */ +/* All lists are per viewport specific datas. + * They are all free when viewport changes engines + * or is free itself. Use POSE_engine_init() to + * initialize most of them and POSE_cache_init() + * for POSE_PassList */ + +typedef struct POSE_PassList { + struct DRWPass *bone_solid; + struct DRWPass *bone_outline; + struct DRWPass *bone_wire; + struct DRWPass *bone_envelope; + struct DRWPass *bone_axes; + struct DRWPass *relationship; + struct DRWPass *bone_selection; +} POSE_PassList; + +typedef struct POSE_StorageList { + struct POSE_PrivateData *g_data; +} POSE_StorageList; + +typedef struct POSE_Data { + void *engine_type; + DRWViewportEmptyList *fbl; + DRWViewportEmptyList *txl; + POSE_PassList *psl; + POSE_StorageList *stl; +} POSE_Data; + +/* *********** STATIC *********** */ + +typedef struct POSE_PrivateData { + DRWShadingGroup *bone_selection_shgrp; + DRWShadingGroup *bone_selection_invert_shgrp; + float blend_color[4]; + float blend_color_invert[4]; +} POSE_PrivateData; /* Transient data */ + +static struct { + struct GPUShader *bone_selection_sh; +} e_data = {NULL}; + + +/* *********** FUNCTIONS *********** */ +static bool POSE_is_bone_selection_overlay_active(void) +{ + const DRWContextState *dcs = DRW_context_state_get(); + const View3D *v3d = dcs->v3d; + return v3d && (v3d->overlay.flag & V3D_OVERLAY_BONE_SELECTION); +} + +static void POSE_engine_init(void *UNUSED(vedata)) +{ + if (!e_data.bone_selection_sh) { + e_data.bone_selection_sh = GPU_shader_get_builtin_shader(GPU_SHADER_3D_UNIFORM_COLOR); + } +} + +static void POSE_engine_free(void) +{ +} + +/* Here init all passes and shading groups + * Assume that all Passes are NULL */ +static void POSE_cache_init(void *vedata) +{ + POSE_PassList *psl = ((POSE_Data *)vedata)->psl; + POSE_StorageList *stl = ((POSE_Data *)vedata)->stl; + const DRWContextState *draw_ctx = DRW_context_state_get(); + View3D *v3d = draw_ctx->v3d; + + if (!stl->g_data) { + /* Alloc transient pointers */ + stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__); + } + POSE_PrivateData *ppd = stl->g_data; + + { + /* Solid bones */ + DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_CULL_BACK; + psl->bone_solid = DRW_pass_create("Bone Solid Pass", state); + } + + { + /* Bones Outline */ + DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL; + psl->bone_outline = DRW_pass_create("Bone Outline Pass", state); + } + + { + /* Wire bones */ + DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_BLEND; + psl->bone_wire = DRW_pass_create("Bone Wire Pass", state); + } + + { + /* distance outline around envelope bones */ + DRWState state = DRW_STATE_ADDITIVE | DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_CULL_FRONT; + psl->bone_envelope = DRW_pass_create("Bone Envelope Outline Pass", state); + } + + { + DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WIRE_SMOOTH | DRW_STATE_BLEND; + psl->bone_axes = DRW_pass_create("Bone Axes Pass", state); + } + + { + /* Non Meshes Pass (Camera, empties, lamps ...) */ + DRWState state = + DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | + DRW_STATE_BLEND | DRW_STATE_WIRE; + psl->relationship = DRW_pass_create("Bone Relationship Pass", state); + } + + { + if (POSE_is_bone_selection_overlay_active()) { + copy_v4_fl4(ppd->blend_color, 0.0f, 0.0f, 0.0f, v3d->overlay.bone_selection_alpha); + copy_v4_fl4(ppd->blend_color_invert, 0.0f, 0.0f, 0.0f, pow(v3d->overlay.bone_selection_alpha, 4)); + DRWShadingGroup *grp; + psl->bone_selection = DRW_pass_create( + "Bone Selection", + DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL | DRW_STATE_BLEND); + grp = DRW_shgroup_create(e_data.bone_selection_sh, psl->bone_selection); + DRW_shgroup_uniform_vec4(grp, "color", ppd->blend_color, 1); + stl->g_data->bone_selection_shgrp = grp; + grp = DRW_shgroup_create(e_data.bone_selection_sh, psl->bone_selection); + DRW_shgroup_uniform_vec4(grp, "color", ppd->blend_color_invert, 1); + stl->g_data->bone_selection_invert_shgrp = grp; + } + } +} + +static bool POSE_is_driven_by_active_armature(Object *ob) +{ + Object *ob_arm = modifiers_isDeformedByArmature(ob); + if (ob_arm) { + const DRWContextState *draw_ctx = DRW_context_state_get(); + bool is_active = DRW_pose_mode_armature(ob_arm, draw_ctx->obact); + if (!is_active && ob_arm->proxy_from) { + is_active = DRW_pose_mode_armature(ob_arm->proxy_from, draw_ctx->obact); + } + return is_active; + } + else { + Object *ob_mesh_deform = modifiers_isDeformedByMeshDeform(ob); + if (ob_mesh_deform) { + return POSE_is_driven_by_active_armature(ob_mesh_deform); + } + } + return false; +} + +/* Add geometry to shading groups. Execute for each objects */ +static void POSE_cache_populate(void *vedata, Object *ob) +{ + POSE_PassList *psl = ((POSE_Data *)vedata)->psl; + POSE_StorageList *stl = ((POSE_Data *)vedata)->stl; + const DRWContextState *draw_ctx = DRW_context_state_get(); + + /* In the future this will allow us to implement face manipulators, + * and similar functionalities. For now we handle only pose bones. */ + + if (ob->type == OB_ARMATURE) { + if (DRW_pose_mode_armature(ob, draw_ctx->obact)) { + DRWArmaturePasses passes = { + .bone_solid = psl->bone_solid, + .bone_outline = psl->bone_outline, + .bone_wire = psl->bone_wire, + .bone_envelope = psl->bone_envelope, + .bone_axes = psl->bone_axes, + .relationship_lines = psl->relationship, + }; + DRW_shgroup_armature_pose(ob, passes); + } + } + else if (ob->type == OB_MESH && + !DRW_state_is_select() && + POSE_is_bone_selection_overlay_active()) + { + struct Gwn_Batch *geom = DRW_cache_object_surface_get(ob); + if (geom) { + if (POSE_is_driven_by_active_armature(ob)) { + DRW_shgroup_call_object_add(stl->g_data->bone_selection_shgrp, geom, ob); + } + else { + DRW_shgroup_call_object_add(stl->g_data->bone_selection_invert_shgrp, geom, ob); + } + } + } +} + +/** + * Return true if armature should be handled by the pose mode engine. + */ +bool DRW_pose_mode_armature(Object *ob, Object *active_ob) +{ + const DRWContextState *draw_ctx = DRW_context_state_get(); + + /* Pose armature is handled by pose mode engine. */ + if (((ob == active_ob) || (ob->mode & OB_MODE_POSE)) && + ((draw_ctx->object_mode & OB_MODE_POSE) != 0)) + { + return true; + } + + /* Armature parent is also handled by pose mode engine. */ + if ((active_ob != NULL) && ((draw_ctx->object_mode & OB_MODE_WEIGHT_PAINT) != 0)) { + if (ob == draw_ctx->object_pose) { + return true; + } + } + + return false; +} + +/* Draw time ! Control rendering pipeline from here */ +static void POSE_draw_scene(void *vedata) +{ + POSE_PassList *psl = ((POSE_Data *)vedata)->psl; + DefaultFramebufferList *dfbl = DRW_viewport_framebuffer_list_get(); + DefaultTextureList *dtxl = DRW_viewport_texture_list_get(); + const DRWContextState *draw_ctx = DRW_context_state_get(); + const bool transparent_bones = (draw_ctx->v3d->overlay.arm_flag & V3D_OVERLAY_ARM_TRANSP_BONES) != 0; + const bool bone_selection_overlay = POSE_is_bone_selection_overlay_active(); + + if (DRW_state_is_select()) { + DRW_draw_pass(psl->bone_solid); + DRW_draw_pass(psl->bone_wire); + return; + } + + if (bone_selection_overlay) { + GPU_framebuffer_bind(dfbl->default_fb); + DRW_draw_pass(psl->bone_selection); + GPU_framebuffer_bind(dfbl->depth_only_fb); + GPU_framebuffer_clear_depth(dfbl->depth_only_fb, 1.0); + GPU_framebuffer_bind(dfbl->default_fb); + } + + DRW_draw_pass(psl->bone_envelope); + + if (transparent_bones) { + DRW_pass_state_add(psl->bone_solid, DRW_STATE_BLEND); + DRW_pass_state_remove(psl->bone_solid, DRW_STATE_WRITE_DEPTH); + DRW_draw_pass(psl->bone_solid); + } + + MULTISAMPLE_SYNC_ENABLE(dfbl, dtxl) + + if (!transparent_bones) { + DRW_draw_pass(psl->bone_solid); + } + + DRW_draw_pass(psl->bone_outline); + DRW_draw_pass(psl->bone_wire); + DRW_draw_pass(psl->relationship); + + MULTISAMPLE_SYNC_DISABLE(dfbl, dtxl) + + /* Draw axes with linesmooth and outside of multisample buffer. */ + DRW_draw_pass(psl->bone_axes); +} + +static const DrawEngineDataSize POSE_data_size = DRW_VIEWPORT_DATA_SIZE(POSE_Data); + +DrawEngineType draw_engine_pose_type = { + NULL, NULL, + N_("PoseMode"), + &POSE_data_size, + &POSE_engine_init, + &POSE_engine_free, + &POSE_cache_init, + &POSE_cache_populate, + NULL, + NULL, + &POSE_draw_scene, + NULL, + NULL, +}; |