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Add basic uv map check

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This commit is contained in:
luboslenco
2025-09-09 00:03:23 +02:00
parent 702fbdc435
commit b62fd323a4
1 changed files with 8 additions and 0 deletions
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base/sources/iron_obj.c
+8
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@@ -29,6 +29,8 @@ static size_t bytes_length = 0;
static f32_array_t *pos_first;
static f32_array_t *uv_first;
static f32_array_t *nor_first;
void console_info(char *s);
static bool check_uvmap = true;
static int read_int() {
int bi = 0;
@@ -234,6 +236,7 @@ raw_mesh_t *obj_parse(buffer_t *file_bytes, char split_code, uint64_t start_pos,
bool reading_faces = false;
bool reading_object = false;
bool full_attrib = false;
check_uvmap = true;
if (start_pos == 0) {
vind_off = tind_off = nind_off = 0;
@@ -320,6 +323,10 @@ raw_mesh_t *obj_parse(buffer_t *file_bytes, char split_code, uint64_t start_pos,
i32_array_push(&uv_indices, ua[i - 1]);
i32_array_push(&uv_indices, ua[i]);
}
if (check_uvmap && ua[0] == 0 && ua[1] == 0 && ua[2] == 0) { // Blender points faces with no UV to 0.0 (vt index 0)
check_uvmap = false;
console_info("Warning: Mesh is not fully UV unwrapped");
}
}
if (nor_temp.length > 0) {
i32_array_push(&nor_indices, na[0]);
@@ -619,6 +626,7 @@ raw_mesh_t *obj_parse(buffer_t *file_bytes, char split_code, uint64_t start_pos,
part->texa->buffer[i * 2 + 1] = (int)((1.0 - uvy) * 32767);
}
}
bytes = NULL;
if (!part->has_next) {
pos_first = nor_first = uv_first = NULL;