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paint: unwrap merged object

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This commit is contained in:
luboslenco
2026-04-28 16:03:44 +02:00
parent 2d8c1429b5
commit a13f83c22c
1 changed files with 91 additions and 11 deletions
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paint/sources/tab_plugins.c
+91 -11
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@@ -43,18 +43,98 @@ void tab_plugins_draw(ui_handle_t *htab) {
#ifdef WITH_PLUGINS
void proc_uv_unwrap(void *mesh);
void plugin_uv_unwrap_button() {
for (i32 i = 0; i < project_paint_objects->length; ++i) {
mesh_data_t *md = project_paint_objects->buffer[i]->data;
raw_mesh_t *mesh =
GC_ALLOC_INIT(raw_mesh_t,
{.posa = md->vertex_arrays->buffer[0]->values, .nora = md->vertex_arrays->buffer[1]->values, .texa = NULL, .inda = md->index_array});
proc_uv_unwrap(mesh);
md->vertex_arrays->buffer[0]->values = mesh->posa;
md->vertex_arrays->buffer[1]->values = mesh->nora;
md->vertex_arrays->buffer[2]->values = mesh->texa;
md->index_array = mesh->inda;
mesh_data_build(md);
util_mesh_merge(project_paint_objects);
if (g_context->merged_object == NULL) {
return;
}
mesh_data_t *mmd = g_context->merged_object->data;
i16_array_t *merged_posa = mmd->vertex_arrays->buffer[0]->values;
i16_array_t *merged_nora = mmd->vertex_arrays->buffer[1]->values;
u32_array_t *merged_inda = mmd->index_array;
i16_array_t *posa = malloc(sizeof(i16_array_t));
posa->length = posa->capacity = merged_posa->length;
posa->buffer = malloc(merged_posa->length * sizeof(i16));
memcpy(posa->buffer, merged_posa->buffer, merged_posa->length * sizeof(i16));
i16_array_t *nora = malloc(sizeof(i16_array_t));
nora->length = nora->capacity = merged_nora->length;
nora->buffer = malloc(merged_nora->length * sizeof(i16));
memcpy(nora->buffer, merged_nora->buffer, merged_nora->length * sizeof(i16));
u32_array_t *inda = malloc(sizeof(u32_array_t));
inda->length = inda->capacity = merged_inda->length;
inda->buffer = malloc(merged_inda->length * sizeof(u32));
memcpy(inda->buffer, merged_inda->buffer, merged_inda->length * sizeof(u32));
raw_mesh_t *mesh = GC_ALLOC_INIT(raw_mesh_t, {.posa = posa, .nora = nora, .texa = NULL, .inda = inda});
proc_uv_unwrap(mesh);
i32 ioff = 0;
f32 max_scale = mmd->scale_pos;
for (i32 i = 0; i < project_paint_objects->length; ++i) {
mesh_data_t *md = project_paint_objects->buffer[i]->data;
i32 ilen = md->index_array->length;
f32 rescale = max_scale / md->scale_pos;
i16_array_t *new_posa = i16_array_create(ilen * 4);
i16_array_t *new_nora = i16_array_create(ilen * 2);
i16_array_t *new_texa = i16_array_create(ilen * 2);
u32_array_t *new_inda = u32_array_create(ilen);
for (i32 j = 0; j < ilen; ++j) {
i32 src = (ioff + j) * 4;
new_posa->buffer[j * 4] = (i16)math_floor(mesh->posa->buffer[src] * rescale);
new_posa->buffer[j * 4 + 1] = (i16)math_floor(mesh->posa->buffer[src + 1] * rescale);
new_posa->buffer[j * 4 + 2] = (i16)math_floor(mesh->posa->buffer[src + 2] * rescale);
new_posa->buffer[j * 4 + 3] = mesh->posa->buffer[src + 3];
}
for (i32 j = 0; j < ilen * 2; ++j) {
new_nora->buffer[j] = mesh->nora->buffer[ioff * 2 + j];
}
for (i32 j = 0; j < ilen * 2; ++j) {
new_texa->buffer[j] = mesh->texa->buffer[ioff * 2 + j];
}
for (i32 j = 0; j < ilen; ++j) {
new_inda->buffer[j] = (u32)j;
}
md->vertex_arrays->buffer[0]->values = new_posa;
md->vertex_arrays->buffer[1]->values = new_nora;
md->vertex_arrays->buffer[2]->values = new_texa;
md->index_array = new_inda;
mesh_data_build(md);
ioff += ilen;
}
free(mesh->posa->buffer);
free(mesh->posa);
free(mesh->nora->buffer);
free(mesh->nora);
free(mesh->texa->buffer);
free(mesh->texa);
free(mesh->inda->buffer);
free(mesh->inda);
util_mesh_merge(NULL);
}
// void plugin_uv_unwrap_per_object_button() {
// for (i32 i = 0; i < project_paint_objects->length; ++i) {
// mesh_data_t *md = project_paint_objects->buffer[i]->data;
// raw_mesh_t *mesh =
// GC_ALLOC_INIT(raw_mesh_t,
// {.posa = md->vertex_arrays->buffer[0]->values, .nora = md->vertex_arrays->buffer[1]->values, .texa = NULL, .inda = md->index_array});
// proc_uv_unwrap(mesh);
// md->vertex_arrays->buffer[0]->values = mesh->posa;
// md->vertex_arrays->buffer[1]->values = mesh->nora;
// md->vertex_arrays->buffer[2]->values = mesh->texa;
// md->index_array = mesh->inda;
// mesh_data_build(md);
// }
// util_mesh_merge(NULL);
// }
#endif