/* call this with NULL to restore assigned ID pointers in preview scene */
static Scene *preview_prepare_scene(Scene *scene, ID *id, int id_type, ShaderPreview *sp)
{
Scene *sce;
Base *base;
if(pr_main==NULL) return NULL;
sce= pr_main->scene.first;
if(sce) {
/* this flag tells render to not execute depsgraph or ipos etc */
sce->r.scemode |= R_PREVIEWBUTS;
/* set world always back, is used now */
sce->world= pr_main->world.first;
/* now: exposure copy */
if(scene->world) {
sce->world->exp= scene->world->exp;
sce->world->range= scene->world->range;
}
sce->r.color_mgt_flag = scene->r.color_mgt_flag;
/* prevent overhead for small renders and icons (32) */
if(id && sp->sizex < 40)
sce->r.xparts= sce->r.yparts= 1;
else
sce->r.xparts= sce->r.yparts= 4;
/* exception: don't color manage texture previews or icons */
if((id && sp->pr_method==PR_ICON_RENDER) || id_type == ID_TE)
sce->r.color_mgt_flag &= ~R_COLOR_MANAGEMENT;
if((id && sp->pr_method==PR_ICON_RENDER) && id_type != ID_WO)
sce->r.alphamode= R_ALPHAPREMUL;
else
sce->r.alphamode= R_ADDSKY;
sce->r.cfra= scene->r.cfra;
strcpy(sce->r.engine, scene->r.engine);
if(id_type==ID_MA) {
Material *mat= NULL, *origmat= (Material *)id;
if(origmat) {
/* work on a copy */
mat= localize_material(origmat);
sp->matcopy= mat;
BLI_addtail(&pr_main->mat, mat);
init_render_material(mat, 0, NULL); /* call that retrieves mode_l */
end_render_material(mat);
/* un-useful option */
if(sp->pr_method==PR_ICON_RENDER)
mat->shade_flag &= ~MA_OBCOLOR;
/* turn on raytracing if needed */
if(mat->mode_l & MA_RAYMIRROR)
sce->r.mode |= R_RAYTRACE;
if(mat->material_type == MA_TYPE_VOLUME)
sce->r.mode |= R_RAYTRACE;
if((mat->mode_l & MA_RAYTRANSP) && (mat->mode_l & MA_TRANSP))
sce->r.mode |= R_RAYTRACE;
if(preview_mat_has_sss(mat, NULL))
sce->r.mode |= R_SSS;
/* turn off fake shadows if needed */
/* this only works in a specific case where the preview.blend contains
* an object starting with 'c' which has a material linked to it (not the obdata)
* and that material has a fake shadow texture in the active texture slot */
for(base= sce->base.first; base; base= base->next) {
if(base->object->id.name[2]=='c') {
Material *shadmat= give_current_material(base->object, base->object->actcol);
if(shadmat) {
if (mat->mode & MA_SHADBUF) shadmat->septex = 0;
else shadmat->septex |= 1;
}
}
}
/* turn off bounce lights for volume,
* doesn't make much visual difference and slows it down too */
if(mat->material_type == MA_TYPE_VOLUME) {
for(base= sce->base.first; base; base= base->next) {
if(base->object->type == OB_LAMP) {
/* if doesn't match 'Lamp.002' --> main key light */
if( strcmp(base->object->id.name+2, "Lamp.002") != 0 ) {
base->object->restrictflag |= OB_RESTRICT_RENDER;
}
}
}
}
if(sp->pr_method==PR_ICON_RENDER) {
if (mat->material_type == MA_TYPE_HALO) {
sce->lay= 1<<MA_FLAT;
}
else {
sce->lay= 1<<MA_SPHERE_A;
}
}
else {
sce->lay= 1<<mat->pr_type;
if(mat->nodetree && sp->pr_method==PR_NODE_RENDER) {
/* two previews, they get copied by wmJob */
ntreeInitPreview(mat->nodetree, sp->sizex, sp->sizey);
ntreeInitPreview(origmat->nodetree, sp->sizex, sp->sizey);
}
}
}
else {
sce->r.mode &= ~(R_OSA|R_RAYTRACE|R_SSS);
}
for(base= sce->base.first; base; base= base->next) {
if(base->object->id.name[2]=='p') {
/* copy over object color, in case material uses it */
copy_v4_v4(base->object->col, sp->col);
if(ELEM4(base->object->type, OB_MESH, OB_CURVE, OB_SURF, OB_MBALL)) {
/* don't use assign_material, it changed mat->id.us, which shows in the UI */
Material ***matar= give_matarar(base->object);
int actcol= MAX2(base->object->actcol > 0, 1) - 1;
if(matar && actcol < base->object->totcol)
(*matar)[actcol]= mat;
} else if (base->object->type == OB_LAMP) {
base->object->restrictflag &= ~OB_RESTRICT_RENDER;
}
}
}
}
else if(id_type==ID_TE) {
Tex *tex= NULL, *origtex= (Tex *)id;
if(origtex) {
tex= localize_texture(origtex);
sp->texcopy= tex;
BLI_addtail(&pr_main->tex, tex);
}
sce->lay= 1<<MA_TEXTURE;
for(base= sce->base.first; base; base= base->next) {
if(base->object->id.name[2]=='t') {
Material *mat= give_current_material(base->object, base->object->actcol);
if(mat && mat->mtex[0]) {
mat->mtex[0]->tex= tex;
if(tex && sp->slot)
mat->mtex[0]->which_output = sp->slot->which_output;
/* show alpha in this case */
if(tex==NULL || (tex->flag & TEX_PRV_ALPHA)) {
mat->mtex[0]->mapto |= MAP_ALPHA;
mat->alpha= 0.0f;
}
else {
mat->mtex[0]->mapto &= ~MAP_ALPHA;
mat->alpha= 1.0f;
}
}
}
}
if(tex && tex->nodetree && sp->pr_method==PR_NODE_RENDER) {
/* two previews, they get copied by wmJob */
ntreeInitPreview(origtex->nodetree, sp->sizex, sp->sizey);
ntreeInitPreview(tex->nodetree, sp->sizex, sp->sizey);
}
}
else if(id_type==ID_LA) {
Lamp *la= NULL, *origla= (Lamp *)id;
/* work on a copy */
if(origla) {
la= localize_lamp(origla);
sp->lampcopy= la;
BLI_addtail(&pr_main->lamp, la);
}
if(la && la->type==LA_SUN && (la->sun_effect_type & LA_SUN_EFFECT_SKY)) {
sce->lay= 1<<MA_ATMOS;
sce->world= scene->world;
sce->camera= (Object *)BLI_findstring(&pr_main->object, "CameraAtmo", offsetof(ID, name)+2);
}
else {
sce->lay= 1<<MA_LAMP;
sce->world= NULL;
sce->camera= (Object *)BLI_findstring(&pr_main->object, "Camera", offsetof(ID, name)+2);
}
sce->r.mode &= ~R_SHADOW;
for(base= sce->base.first; base; base= base->next) {
if(base->object->id.name[2]=='p') {
if(base->object->type==OB_LAMP)
base->object->data= la;
}
}
}
else if(id_type==ID_WO) {
World *wrld= NULL, *origwrld= (World *)id;
if(origwrld) {
wrld= localize_world(origwrld);
sp->worldcopy= wrld;
BLI_addtail(&pr_main->world, wrld);
}
sce->lay= 1<<MA_SKY;
sce->world= wrld;
}
return sce;
}
return NULL;
}
/* call this with NULL to restore assigned ID pointers in preview scene */
static Scene *preview_prepare_scene(Scene *scene, ID *id, int id_type, ShaderPreview *sp)
{
Scene *sce;
Base *base;
Main *pr_main = sp->pr_main;
sce = preview_get_scene(pr_main);
if (sce) {
/* this flag tells render to not execute depsgraph or ipos etc */
sce->r.scemode |= R_PREVIEWBUTS;
/* set world always back, is used now */
sce->world = pr_main->world.first;
/* now: exposure copy */
if (scene->world) {
sce->world->exp = scene->world->exp;
sce->world->range = scene->world->range;
}
sce->r.color_mgt_flag = scene->r.color_mgt_flag;
BKE_color_managed_display_settings_copy(&sce->display_settings, &scene->display_settings);
BKE_color_managed_view_settings_free(&sce->view_settings);
BKE_color_managed_view_settings_copy(&sce->view_settings, &scene->view_settings);
/* prevent overhead for small renders and icons (32) */
if (id && sp->sizex < 40) {
sce->r.tilex = sce->r.tiley = 64;
}
else {
sce->r.tilex = sce->r.xsch / 4;
sce->r.tiley = sce->r.ysch / 4;
}
if ((id && sp->pr_method == PR_ICON_RENDER) && id_type != ID_WO)
sce->r.alphamode = R_ALPHAPREMUL;
else
sce->r.alphamode = R_ADDSKY;
sce->r.cfra = scene->r.cfra;
if (id_type == ID_TE && sp->pr_method == PR_ICON_RENDER) {
/* force blender internal for texture icons render,
* seems commonly used render engines does not support
* such kind of rendering
*/
BLI_strncpy(sce->r.engine, "BLENDER_RENDER", sizeof(sce->r.engine));
}
else {
BLI_strncpy(sce->r.engine, scene->r.engine, sizeof(sce->r.engine));
}
if (id_type == ID_MA) {
Material *mat = NULL, *origmat = (Material *)id;
if (origmat) {
/* work on a copy */
mat = localize_material(origmat);
sp->matcopy = mat;
BLI_addtail(&pr_main->mat, mat);
if (!BKE_scene_use_new_shading_nodes(scene)) {
init_render_material(mat, 0, NULL); /* call that retrieves mode_l */
end_render_material(mat);
/* un-useful option */
if (sp->pr_method == PR_ICON_RENDER)
mat->shade_flag &= ~MA_OBCOLOR;
/* turn on raytracing if needed */
if (mat->mode_l & MA_RAYMIRROR)
sce->r.mode |= R_RAYTRACE;
if (mat->material_type == MA_TYPE_VOLUME)
sce->r.mode |= R_RAYTRACE;
if ((mat->mode_l & MA_RAYTRANSP) && (mat->mode_l & MA_TRANSP))
sce->r.mode |= R_RAYTRACE;
if (preview_mat_has_sss(mat, NULL))
sce->r.mode |= R_SSS;
/* turn off fake shadows if needed */
/* this only works in a specific case where the preview.blend contains
* an object starting with 'c' which has a material linked to it (not the obdata)
* and that material has a fake shadow texture in the active texture slot */
for (base = sce->base.first; base; base = base->next) {
if (base->object->id.name[2] == 'c') {
Material *shadmat = give_current_material(base->object, base->object->actcol);
if (shadmat) {
if (mat->mode & MA_SHADBUF) shadmat->septex = 0;
else shadmat->septex |= 1;
}
}
}
/* turn off bounce lights for volume,
* doesn't make much visual difference and slows it down too */
if (mat->material_type == MA_TYPE_VOLUME) {
for (base = sce->base.first; base; base = base->next) {
if (base->object->type == OB_LAMP) {
/* if doesn't match 'Lamp.002' --> main key light */
if (strcmp(base->object->id.name + 2, "Lamp.002") != 0) {
base->object->restrictflag |= OB_RESTRICT_RENDER;
}
}
}
}
}
else {
/* use current scene world to light sphere */
if (mat->pr_type == MA_SPHERE_A)
sce->world = scene->world;
}
if (sp->pr_method == PR_ICON_RENDER) {
if (mat->material_type == MA_TYPE_HALO) {
sce->lay = 1 << MA_FLAT;
}
else {
sce->lay = 1 << MA_SPHERE_A;
/* same as above, use current scene world to light sphere */
if (BKE_scene_use_new_shading_nodes(scene))
sce->world = scene->world;
}
}
else {
sce->lay = 1 << mat->pr_type;
if (mat->nodetree && sp->pr_method == PR_NODE_RENDER) {
/* two previews, they get copied by wmJob */
BKE_node_preview_init_tree(mat->nodetree, sp->sizex, sp->sizey, TRUE);
BKE_node_preview_init_tree(origmat->nodetree, sp->sizex, sp->sizey, TRUE);
}
}
}
else {
sce->r.mode &= ~(R_OSA | R_RAYTRACE | R_SSS);
}
for (base = sce->base.first; base; base = base->next) {
if (base->object->id.name[2] == 'p') {
/* copy over object color, in case material uses it */
copy_v4_v4(base->object->col, sp->col);
if (OB_TYPE_SUPPORT_MATERIAL(base->object->type)) {
/* don't use assign_material, it changed mat->id.us, which shows in the UI */
Material ***matar = give_matarar(base->object);
int actcol = max_ii(base->object->actcol - 1, 0);
if (matar && actcol < base->object->totcol)
(*matar)[actcol] = mat;
}
else if (base->object->type == OB_LAMP) {
base->object->restrictflag &= ~OB_RESTRICT_RENDER;
}
}
}
}
else if (id_type == ID_TE) {
Tex *tex = NULL, *origtex = (Tex *)id;
if (origtex) {
tex = localize_texture(origtex);
sp->texcopy = tex;
BLI_addtail(&pr_main->tex, tex);
}
sce->lay = 1 << MA_TEXTURE;
for (base = sce->base.first; base; base = base->next) {
if (base->object->id.name[2] == 't') {
Material *mat = give_current_material(base->object, base->object->actcol);
if (mat && mat->mtex[0]) {
mat->mtex[0]->tex = tex;
if (tex && sp->slot)
mat->mtex[0]->which_output = sp->slot->which_output;
mat->mtex[0]->mapto &= ~MAP_ALPHA;
mat->alpha = 1.0f;
/* show alpha in this case */
if (tex == NULL || (tex->flag & TEX_PRV_ALPHA)) {
if (!(tex && tex->type == TEX_IMAGE && (tex->imaflag & (TEX_USEALPHA | TEX_CALCALPHA)) == 0)) {
mat->mtex[0]->mapto |= MAP_ALPHA;
mat->alpha = 0.0f;
}
}
}
}
}
if (tex && tex->nodetree && sp->pr_method == PR_NODE_RENDER) {
/* two previews, they get copied by wmJob */
BKE_node_preview_init_tree(origtex->nodetree, sp->sizex, sp->sizey, TRUE);
BKE_node_preview_init_tree(tex->nodetree, sp->sizex, sp->sizey, TRUE);
}
}
else if (id_type == ID_LA) {
Lamp *la = NULL, *origla = (Lamp *)id;
/* work on a copy */
if (origla) {
la = localize_lamp(origla);
sp->lampcopy = la;
BLI_addtail(&pr_main->lamp, la);
}
sce->lay = 1 << MA_LAMP;
if (!BKE_scene_use_new_shading_nodes(scene)) {
if (la && la->type == LA_SUN && (la->sun_effect_type & LA_SUN_EFFECT_SKY)) {
sce->lay = 1 << MA_ATMOS;
sce->world = scene->world;
sce->camera = (Object *)BLI_findstring(&pr_main->object, "CameraAtmo", offsetof(ID, name) + 2);
}
else {
sce->world = NULL;
sce->camera = (Object *)BLI_findstring(&pr_main->object, "Camera", offsetof(ID, name) + 2);
}
}
for (base = sce->base.first; base; base = base->next) {
if (base->object->id.name[2] == 'p') {
if (base->object->type == OB_LAMP)
base->object->data = la;
}
}
if (la && la->nodetree && sp->pr_method == PR_NODE_RENDER) {
/* two previews, they get copied by wmJob */
BKE_node_preview_init_tree(origla->nodetree, sp->sizex, sp->sizey, TRUE);
BKE_node_preview_init_tree(la->nodetree, sp->sizex, sp->sizey, TRUE);
}
}
else if (id_type == ID_WO) {
World *wrld = NULL, *origwrld = (World *)id;
if (origwrld) {
wrld = localize_world(origwrld);
sp->worldcopy = wrld;
BLI_addtail(&pr_main->world, wrld);
}
sce->lay = 1 << MA_SKY;
sce->world = wrld;
if (wrld && wrld->nodetree && sp->pr_method == PR_NODE_RENDER) {
/* two previews, they get copied by wmJob */
BKE_node_preview_init_tree(wrld->nodetree, sp->sizex, sp->sizey, TRUE);
BKE_node_preview_init_tree(origwrld->nodetree, sp->sizex, sp->sizey, TRUE);
}
}
return sce;
}
return NULL;
}