Part of creating good topology for CheckMate Pro v2 subdividable models is to avoid T-vertices, the convergence of edges in a T formation, unless they are absolutely necessary for the flow of the model’s shape. T-vertices, or T-verts for short, when used incorrectly, will halt edge flow and cause poor subdivision.
Any vertex with only three edges could be consider a T-vertex; the crossbar of the T doesn’t have to be straight across. You can use them when there’s no better solution, but it is best to avoid them as much as possible. Here, we’ll look at at few T-vert situations, both acceptable and unacceptable.
Flowing Around Corners – Acceptable
When a model’s shape changes direction, T-vertices are necessary where the quad flow from one direction meets the flow from the other direction.
Insets – Acceptable
The method of creating extra detail described in the Oblong Cutouts video creates T-vertices. These vertices are acceptable because this method is the best way to increase detail within a specific area while still maintaining easily selectable edge loops.
Transitioning with Other Methods – Usually unacceptable
Artists sometimes use T-verts as a solution for going from an area of high detail to lower detail. This is acceptable as long as the transition uses insets as described above. If insets are not used, the topology is probably not the best it can be, which means it fails CheckMate Pro v2. A straight T crossbar is often an indication of poorly planned topology.
Unnecessary Use of Inset Method – Unacceptable
Just because all your T-vertices are a result of insets, does not mean the model will pass CheckMate Pro v2. In order for insets to be acceptable, they must be necessary. The model below fails CheckMate Pro v2 not on T-vertices, but on unnecessary and excessive edges. When the edges were removed, the model kept exactly the same shape.
Bent Polygon – Unacceptable
A bent polygon can result from the use of T-vertices, with the polygon bending along a hidden edge following from the supporting bar of the T. This is poor topology that will cause undesirable effects in renderings.
In this case, an edge should be added in place of the hidden edge, and the resulting topology should be adjusted for good edge flow.
These are just guidelines for T-vertices. As with all your topology, you should be constantly asking yourself, “Is there any way this could be better?” The existence of T-vertices in any situation other than the first two listed here is usually a sign that your topology could be (and should be) better.
If your model suffers from T-vertices and you don’t know how to fix them, you can submit your model for CheckMate Pro inspection and ask the inspector for assistance.
Sehemu ya kujenga topolojia nzuri kwa ajili ya Checkmate Pro v2 subdivisible mifano ni kuepuka T-vertices, convergence ya kingo katika T malezi, isipokuwa wao ni kabisa muhimu kwa mtiririko wa muundo wa mfano. T-vertices, au T-verts kwa kifupi, wakati kutumika vibaya, itasimamisha mkondo mtiririko na kusababisha subdivision duni. Vertex yoyote na kingo tatu tu inaweza kuchukuliwa T-vertex; crossbar ya T <unk> haina kuwa moja kwa moja katika. Unaweza kuzitumia wakati hakuna suluhisho bora, lakini ni bora kuziepuka kadiri iwezekanavyo. Hapa, tutaangalia katika hali chache za T-vert, zote zinakubaliwa na zisizokubaliwa. Mtiririko kuzunguka pembe <unk> Kukubalika Wakati muundo wa mfano unabadilisha mwelekeo, T-vertices ni muhimu ambapo mtiririko wa quad kutoka mwelekeo mmoja hukutana na mtiririko kutoka mwelekeo mwingine. Insets <unk> kukubalika Mbinu ya kujenga maelezo ya ziada ilivyoelezwa katika Oblong Cutouts video inajenga T-vertices. Hizi vertices ni kukubalika kwa sababu njia hii ni njia bora ya kuongeza maelezo ndani ya eneo maalum wakati bado kudumisha urahisi kuchagua makali loops. Kubadilisha na Mbinu Nyingine <unk> Kwa kawaida haikubaliki Wasanii wakati mwingine hutumia T-verts kama suluhisho la kwenda kutoka eneo la maelezo ya juu hadi maelezo ya chini. Hii ni kukubalika kwa muda mrefu kama mpito anatumia insets kama ilivyoelezwa hapo juu. Ikiwa inbox haitumiki, topolojia ya chaguzi haifai, na kwa hivyo inashindwa. Mstari wa msalaba wa T moja kwa moja mara nyingi ni dalili ya topolojia iliyopangwa vibaya. Matumizi yasiyo ya lazima ya Inset Method <unk> Unacceptable Tu kwa sababu T-vertices yako yote ni matokeo ya insets, haina maana mfano kupita CheckMate Pro v2. Ili viungo viwe vinavyokubalika, ni lazima viwe vya lazima. Mfano hapa chini kushindwa Checkmate Pro v2 si juu ya T-vertices, lakini juu ya kingo zisizohitajika na kupita kiasi. Pembe zilipofutwa, mfano huo ulibaki na umbo lilelile. Poligoni iliyoinuka inaweza kutokea kutokana na matumizi ya T-vertices, na polygon inayoinuka kando ya ukingo uliofichwa unaofuata kutoka kwa bar ya msaada ya T. Hii ni topolojia duni ambayo itasababisha athari zisizohitajika katika kutoa. Katika kesi hii, makali inapaswa kuongezwa katika nafasi ya makali siri, na topolojia inayotokana inapaswa kurekebishwa kwa mtiririko mzuri wa makali. Hizi ni miongozo tu kwa ajili ya T-vertices. Kama ilivyo na topolojia yako yote, unapaswa kujiuliza daima, <unk>Je, kuna njia yoyote hii inaweza kuwa bora?<unk> Uwepo wa T-vertices katika hali yoyote isipokuwa mbili za kwanza zilizoorodheshwa hapa kwa kawaida ni ishara kwamba topolojia yako inaweza kuwa (na inapaswa kuwa) bora. Kama mfano wako anaugua kutoka T-vertices na hujui jinsi ya kurekebisha yao, unaweza kuwasilisha mfano wako kwa ajili ya CheckMate Pro ukaguzi na kuuliza inspekta kwa msaada.