OS : win10 PsychoPy version : 2021.2.3 I made the random color circle in my builder. It works well in PsychoPy, but not in the pavlovia. I don’t know what is the problem and what to do for making it works well. [image]

Okay, it looks like it’s a combination of factors: It does need to be multiple values for JS, and you also need to specify the color space as there appears to be a bug in the Builder script (which I’ve just put in a bug fix for) which means color space wasn’t used in the JS boilerplate. For now, yo…

Hi @Warala , could you show the code that does the randomization?

Hi, I just put the variable name like the picture, and randomize with loop system. It is based on the excel file below. [image]

Could it be the problem that you only have one value where multiple are needed? Or do you need values between 0 and 255? Maybe PsychoJS only understands RGB values?

What exactly happens when you run it on pavlovia?

Every time the polygon appears black… And I try to make them to 255rgb, but it didn’t work. Still blacks.

That’s weird. Could you share your experiment file and the conditions file?

Thank you, it’s helpful information. But still I can’t make it :disappointed_relieved: I put circle.setFillColor(new util.Color(startColor)); in the JS window. However in pavlovia, now the program shows me the loading page forever,

If that is the case, it probably means that something is wrong with your code. You can press ctrl + shift + K (in Firefox) to look at the console and see where the initialization of the experiment fails.

I think you’re spot on with needing multiple values - PsychoJS definitely understands different color spaces (rgb = -1 to 1, rgb1 = 0 to 1, rgb255 = 0 to 255) and as the color space in Builder is set to rgb it should interpret values between -1 and 1 correctly. However, I can’t confirm whether the c…

Doesn't pavlovia have the ability to randomize colors?

Online experiments

ajus July 13, 2022, 10:44am 9

Maybe this will help you: Colors are not appearing in shapes for online experiment - #10 by wakecarter

Topic		Replies	Views
Colors are not appearing in shapes for online experiment Online experiments pavlovia	14	2343	July 25, 2020
Color codes work in PsychoPy, not in Pavlovia Online experiments	9	961	November 18, 2020
Unknown named color Online experiments color , pavlovia	2	894	June 22, 2021
Polygon (rectangle) Code Component Online experiments notdefined	6	1595	April 28, 2020
Unkown named color: 1.0000, 1.0000, 1.0000 Online experiments	2	292	December 1, 2023

Doesn't pavlovia have the ability to randomize colors?

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