Cách tạo map bump

This trang web lets you create normal maps from height maps for free.

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All normal bản đồ textures you create are your own.Textures are not saved on the hệ thống và all scripts are running on your Browser.Just drag & drop a heightmap in the specified field & adjust settings.Afterwards check the pReviews window và download your own normalbản đồ.Additionally you can adjust và download displacement & ambient occlusion mapsThe previews window shows a 3D-model with several different maps.Each maps can be enabled/disabled và the preview mã sản phẩm can be adjusted.If you have sầu further questions, just give feedback to lớn the mail-adress on the webpage.

Normal Maps

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Normal Maps are textures that inherit depth information of a surface.They don"t change the structure of the mã sản phẩm and have sầu nearly no impact on performance.

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Each pixel represents a normal vector and is composed of three colors.These colors are representing the direction of the normal vector.They can enhance the optical illusion of depth significantly & are especially useful on flat surfaces, that have sầu several bumps orcracks.As shown on the right, the elevation described by the height map can be converted lớn a normal bản đồ, that can be read from your graphics card inside the shader units.When aiming for a more drastical illusion in depth, where parts could be occluding the Mã Sản Phẩm, you should try displacement mapsThese maps really alter polygons but could decrease performance significantly!


Batch mode
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Batch mode

With this you can create maps for multiple height maps all at once. Try it out & give feedback!


Height map

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This texture contains the distance "height" from "floor".The brighter the px, the further away (more depth).In this application it doesn"t matter if the values are inverted because you can change it anytime later on.The most important thing though, is the value difference between the pixels.Ikhuyến mãi is a texture with pixel dimensions with a power of 2 (2, 4, 8,..., 256, 512 etc.)

If using a height maps as a displacement bản đồ,you can easily see the effects on the surface.An example heightmap (left), bumps going in (top-right) và bumps going out (bottom-right) are shown in the image below.

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NormalMaps from photos

To generate normal maps from photos, you need four specific pictures of the same surface. Each picture needs a different lighting position. The light should shine from the top, left, right & bottom of the image. For this you need a simple camera, a flashlight và optionally a tripod.If you don"t use a tripod you probably have to lớn align & crop the pictures before using them.

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Drag&drop the pictures on the four positions inside the left viewport.You can also cliông chồng on each image to lớn select a file.Keep in mind that the light origin, shown inside the viewport, is in the center!Also, all of the four pictures must have sầu the same resolution.


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As a result a pretty decent normalmaps is generated from the pictures (of my bath rug...).Readjust the values afterwards for better results.Attention:Best try capturing the surface with a tripod & don"t forget lớn capture an additional image for the diffuse map!


Chuyên mục: Kiến thức