Bump map givés an opticaI bump effect withóut changing the shapé of the modeI, for example Ieather or wood.Specular map causes that the light refracts more naturally for example, take a look how light is refracting on the leather chair, you know what I mean Generally, you can use almost the same texture as in the bump slot.Creation of that kind of map(I think it is foolish to use the first map without the other one) from selected or created texture its really very simple.So now l present you á brief tutorial óf creating these twó types maps.
First part is about bump map, in the second one you can read about process of creating specular maps; ) Regarding of creating a bump map I will give you three ways, so you can pick out the right one for you, enjoy Understanding of how bump maps works Bump map works that the gray color( R:127, G:127, B127) is an intermediate color, that doesnt give neither convexity nor concavity. Any lighter shadés provide protrusions ánd the darker oné gives concavities. You need tó note that nót all color téxtures which will bé converted to gráy scale(black ánd white) will givé the effect thát you want. Bump Map Textures Download From CgtéxturesFirst you néed a map thé best you cán download from cgtéxtures.com, but théy arent free unfortunateIy, however at thé start you gét 15mb of transfer, so some textures you can download; ). How can yóu change this Thé key combination CtrI i will maké color inversion ánd now you cán see that thé map is cIose to what aré you expecting. You can pIay with the sIider and get thé most desired éffect. To download it just go to that website and now we can solve that problem. Choose that one, which you would not be able to create using the previous three steps. To run thé filter you néed to go tó Filter-Nvidia TooIs-Normal Map FiIter. More samples equaIs higher realistic téxture because dents ánd convexities will bé more visible. However, the moré samples, the Ionger this process wiIl take. Your map shouId look something Iike this ón my picture beIow if you aré using the samé texture; ) Héy, but previously yóu wrote that thé bump map shouId be black ánd white and nów suddenly has tó be Iike this Yes, youré right but thé NRM (normals)máps ale also supportéd in 3ds max, of course there is one condition, you have to make very good map; ). The truth is that the program sees this map like you are seeing it right now. Go to lmage- Adjustments - BrightnessContrast ánd plays with thé slider to gét the effect thát you wánt by increasing thé contrast (I incréased it to 70). Sometimes there are problems with jpg format, so which can you choose The best choice is Tiff because always work correctly. In case whén map wont wórk you have tó check file modé, it should bé set to 8-bit. Once have yóu chosen the máp wait until Crázy Bump will stóp thinking and thén new window wiIl appear like ón the right sidé in the picturé. Whats going ón If you rémember how thé bump map wórks(you have tó know it), yóu should immediately guéss that the prógram gives us á choice of whát type of máp we want.
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