4/15/2023 0 Comments Unity3d unpacker![]() We can think of tangent space as a relative axis conforming to the normal of a surface, where the Z component matches the surface normal’s direction. Tangent Space is another one of these spaces. You’ve probably heard of spaces before with names like WorldSpace, ObjectSpace, ViewSpace, ScreenSpace, ClipSpace, etc. Or, in the case of setting the normal map texture to be imported as such, the Sample Texture 2D performs this function itself:īut why is it needed? Let’s start by looking at the space in these normal maps are made for, Tangent Space. Or in shadergraph, if you are using a normal texture without setting the texture import type as normal, you may have come across this node: ![]() When writing shaders, you’ve probably come across the function in shader code ‘UnpackNormal’, which can be seen in use here:įloat3 normal = UnpackNormal (tex2D(_Bump, _IN.uv_BumpMap)) ![]()
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