Dynamic Materials changes depending on the gradient angle of the surface.

Development Rendering
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Hi everyone,

is it possible to change values or rather parameters depending on the gradient of the surface where the material is printed.

In order to understand it better: I want to create a material that can change depending on the weather. For example, if it is winter, the material shall be white, but this material could be used to brush on a wall or floor or ceiling, so if this material is used on a floor, it shall change into full white, when it is brushed on a wall, it shall be half white and if it is on a ceiling, it shall not change. This is an easy example. At least the gradient angle of floor is 0°, of wall 90° and of ceiling 180°, so i can equally create a material with a LERP between 0°-180°. The point is, is there a possibility to GET that angle of the surface at the position of every pixel.

Hope you have a nice answer :smiley:

Thanks in advance! If my english is kind of wierd, I come from Germany. Sorry for that :smiley:

Kind regards

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Versuche es mit den VertexNormals da kannst du alle pixel rausfiltern die in eine bestimmte richtung zeigen perfekt am anfang dieses Videos erklärt :slight_smile:

Try useing the Vertex normals you can filter all pixels pointing to a certain direction. The above video explains it well.

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Thanks,

meanwhile i have still found the solution, but thanks for the reply.

For those who want the right answer, VertexNormals is one solution :smiley:

But there is another, more practical solution. Just go through the tutorial: layered materials.
It is short, easy to understand and more common and it explains exactly how to cover materials with other materials depending on the gradient of the surface.

Link: Unreal Wiki: Layered Materials

Kind regards

4

well mark the question as solved then or at least as answer :smiley: