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/*
* 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 solid_studio_mode.c
* \ingroup draw_engine
*
* Simple engine for drawing color and/or depth.
* When we only need simple studio shaders.
*/
#include "DRW_render.h"
#include "GPU_shader.h"
#include "workbench_private.h"
/* Shaders */
extern char datatoc_solid_studio_frag_glsl[];
extern char datatoc_workbench_studio_vert_glsl[];
/* *********** STATIC *********** */
static struct {
struct GPUShader *depth_sh;
/* Shading Pass */
struct GPUShader *solid_sh;
} e_data = {NULL};
const float SOLID_STUDIO_DEFAULT_COLOR[3] = {1.0, 1.0, 1.0};
/* Functions */
static void workbench_solid_studio_engine_init(void *UNUSED(vedata))
{
if (!e_data.depth_sh) {
/* Depth pass */
e_data.depth_sh = DRW_shader_create_3D_depth_only();
/* Shading pass */
e_data.solid_sh = DRW_shader_create(
datatoc_workbench_studio_vert_glsl, NULL, datatoc_solid_studio_frag_glsl, "\n");
}
}
static void workbench_solid_studio_cache_init(void *vedata)
{
WORKBENCH_Data * data = (WORKBENCH_Data *)vedata;
WORKBENCH_PassList *psl = data->psl;
WORKBENCH_StorageList *stl = data->stl;
if (!stl->g_data) {
/* Alloc transient pointers */
stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__);
}
/* Depth Pass */
{
int state = DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS;
psl->depth_pass = DRW_pass_create("Depth Pass", state);
stl->g_data->depth_shgrp = DRW_shgroup_create(e_data.depth_sh, psl->depth_pass);
}
/* Solid Pass */
{
int state = DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL;
psl->solid_pass = DRW_pass_create("Solid Pass", state);
}
}
static void workbench_solid_studio_cache_populate(void *vedata, Object *ob)
{
WORKBENCH_Data * data = (WORKBENCH_Data *)vedata;
WORKBENCH_PassList *psl = data->psl;
WORKBENCH_StorageList *stl = data->stl;
IDProperty *props = BKE_layer_collection_engine_evaluated_get(ob, COLLECTION_MODE_NONE, RE_engine_id_BLENDER_WORKBENCH);
const float* color = BKE_collection_engine_property_value_get_float_array(props, "object_color");
if (!DRW_object_is_renderable(ob))
return;
struct Gwn_Batch *geom = DRW_cache_object_surface_get(ob);
DRWShadingGroup *grp;
if (geom) {
/* Depth */
DRW_shgroup_call_add(stl->g_data->depth_shgrp, geom, ob->obmat);
/* Solid */
grp = DRW_shgroup_create(e_data.solid_sh, psl->solid_pass);
DRW_shgroup_uniform_vec3(grp, "color", SOLID_STUDIO_DEFAULT_COLOR, 1);
DRW_shgroup_call_add(grp, geom, ob->obmat);
}
}
static void workbench_solid_studio_cache_finish(void *UNUSED(vedata))
{
}
static void workbench_solid_studio_draw_scene(void *vedata)
{
// WORKBENCH_Data *data = (WORKBENCH_Data *)vedata;
WORKBENCH_PassList *psl = ((WORKBENCH_Data *)vedata)->psl;
DRW_draw_pass(psl->depth_pass);
DRW_draw_pass(psl->solid_pass);
}
static void workbench_solid_studio_engine_free(void)
{
DRW_SHADER_FREE_SAFE(e_data.solid_sh);
}
static const DrawEngineDataSize workbench_data_size = DRW_VIEWPORT_DATA_SIZE(WORKBENCH_Data);
DrawEngineType draw_engine_workbench_solid_studio = {
NULL, NULL,
N_("Workbench"),
&workbench_data_size,
&workbench_solid_studio_engine_init,
&workbench_solid_studio_engine_free,
&workbench_solid_studio_cache_init,
&workbench_solid_studio_cache_populate,
&workbench_solid_studio_cache_finish,
NULL,
&workbench_solid_studio_draw_scene,
NULL,
NULL,
NULL,
};
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