Vex anoise

[Alexanrus]

Hi guys

I can't understood how does work a vex anoise. Is it a bug or my mistake. At the picture a simple code with result. Noise added just to first component of the vector. Usually Im work in vop but sometimes need write in vex and there another result

https://imgur.com/YU2stZN

[kleer001]

That looks like it should work. But... I find VEX a little tricky with multiplying vectors by floats. It doesn't like to do that right after a function. I suggest assigning the noise to the variable and then in another line multiplying the vector by your float amp. Like:

float amp = 4;
vector noise1 = anoise(v@P);
noise1 *= amp

 

[Alexanrus]

57 minutes ago, kleer001 said:

That looks like it should work. But... I find VEX a little tricky with multiplying vectors by floats. It doesn't like to do that right after a function. I suggest assigning the noise to the variable and then in another line multiplying the vector by your float amp. Like:

float amp = 4;
vector noise1 = anoise(v@P);
noise1 *= amp

Thanks it's working

 

[acey195]

when you have vex functions that can output different types, its always a good idea to cast them directly

for example, if you want a random greyscale color, based on the position:

v@Cd = float(rand(v@P)); // this will cast it back to a vector in the end, with the same value for all components.

v@Cd = rand(v@P); // this will cast it back to a vector in the end, but with different values for the components.