Recently want to do a little function, the function is random testing to an arbitrary point, and then take out the point of actual grey value mapping, the algorithm is used to do,

In the material, the material parameter set can only inside the material parameter, namely using BP control the material color do not have what problem, but if the reverse, to bring up a point of grey value, but can't call out,

To solve!

CodePudding user response:

Haven't studied UE4, could not clear implementation,
But according to my understanding of the rendering, this is the shader to get something, alone the blueprint is made