diff options
Diffstat (limited to 'source/blender/draw/engines/overlay/overlay_edit_curve.c')
-rw-r--r-- | source/blender/draw/engines/overlay/overlay_edit_curve.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_edit_curve.c b/source/blender/draw/engines/overlay/overlay_edit_curve.c new file mode 100644 index 00000000000..81253347632 --- /dev/null +++ b/source/blender/draw/engines/overlay/overlay_edit_curve.c @@ -0,0 +1,127 @@ +/* + * 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 2019, Blender Foundation. + */ + +/** \file + * \ingroup draw_engine + */ + +#include "DRW_render.h" + +#include "DNA_curve_types.h" + +#include "overlay_private.h" + +void OVERLAY_edit_curve_cache_init(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + OVERLAY_PrivateData *pd = vedata->stl->pd; + const DRWContextState *draw_ctx = DRW_context_state_get(); + View3D *v3d = draw_ctx->v3d; + DRWShadingGroup *grp; + GPUShader *sh; + DRWState state; + + pd->edit_curve.show_handles = (v3d->overlay.edit_flag & V3D_OVERLAY_EDIT_CU_HANDLES) != 0; + pd->shdata.edit_curve_normal_length = v3d->overlay.normals_length; + + /* Run Twice for in-front passes. */ + for (int i = 0; i < 2; i++) { + state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH; + state |= ((i == 0) ? DRW_STATE_DEPTH_LESS_EQUAL : DRW_STATE_DEPTH_ALWAYS); + DRW_PASS_CREATE(psl->edit_curve_wire_ps[i], state | pd->clipping_state); + + sh = OVERLAY_shader_edit_curve_wire(); + pd->edit_curve_normal_grp[i] = grp = DRW_shgroup_create(sh, psl->edit_curve_wire_ps[i]); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_float_copy(grp, "normalSize", pd->shdata.edit_curve_normal_length); + + pd->edit_curve_wire_grp[i] = grp = DRW_shgroup_create(sh, psl->edit_curve_wire_ps[i]); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_float_copy(grp, "normalSize", 0.0f); + } + { + state = DRW_STATE_WRITE_COLOR; + DRW_PASS_CREATE(psl->edit_curve_handle_ps, state | pd->clipping_state); + + sh = OVERLAY_shader_edit_curve_handle(); + pd->edit_curve_handle_grp = grp = DRW_shgroup_create(sh, psl->edit_curve_handle_ps); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_bool_copy(grp, "showCurveHandles", pd->edit_curve.show_handles); + DRW_shgroup_state_enable(grp, DRW_STATE_BLEND_ALPHA); + + sh = OVERLAY_shader_edit_curve_point(); + pd->edit_curve_points_grp = grp = DRW_shgroup_create(sh, psl->edit_curve_handle_ps); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + } +} + +void OVERLAY_edit_curve_cache_populate(OVERLAY_Data *vedata, Object *ob) +{ + OVERLAY_PrivateData *pd = vedata->stl->pd; + bool draw_normals = (pd->overlay.edit_flag & V3D_OVERLAY_EDIT_CU_NORMALS) != 0; + bool do_xray = (ob->dtx & OB_DRAWXRAY) != 0; + + Curve *cu = ob->data; + struct GPUBatch *geom; + + geom = DRW_cache_curve_edge_wire_get(ob); + if (geom) { + DRW_shgroup_call_no_cull(pd->edit_curve_wire_grp[do_xray], geom, ob); + } + + if ((cu->flag & CU_3D) && draw_normals) { + geom = DRW_cache_curve_edge_normal_get(ob); + DRW_shgroup_call_instances(pd->edit_curve_normal_grp[do_xray], ob, geom, 3); + } + + geom = DRW_cache_curve_edge_overlay_get(ob); + if (geom) { + DRW_shgroup_call_no_cull(pd->edit_curve_handle_grp, geom, ob); + } + + geom = DRW_cache_curve_vert_overlay_get(ob, pd->edit_curve.show_handles); + if (geom) { + DRW_shgroup_call_no_cull(pd->edit_curve_points_grp, geom, ob); + } +} + +void OVERLAY_edit_surf_cache_populate(OVERLAY_Data *vedata, Object *ob) +{ + OVERLAY_PrivateData *pd = vedata->stl->pd; + struct GPUBatch *geom; + + geom = DRW_cache_curve_edge_overlay_get(ob); + if (geom) { + DRW_shgroup_call_no_cull(pd->edit_curve_handle_grp, geom, ob); + } + + geom = DRW_cache_curve_vert_overlay_get(ob, false); + if (geom) { + DRW_shgroup_call_no_cull(pd->edit_curve_points_grp, geom, ob); + } +} + +void OVERLAY_edit_curve_draw(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + + DRW_draw_pass(psl->edit_curve_wire_ps[0]); + DRW_draw_pass(psl->edit_curve_wire_ps[1]); + + DRW_draw_pass(psl->edit_curve_handle_ps); +}
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