Shape Library for SDL

SDL Development
1

I’m using SDL2 for a 2D topdown C++ game based on a Java tutorial. Is there any shape library for SDL2/3 to draw circles for spot light creation ?

I want to be able to create a light spot to create the lantern effect. In the Java tutorial use the function RadialGradientPaint(centerX, centerY, (circleSize/2), fraction, color), where “fraction” is a vector containing the transparency percentages of the circle and “color” is a vector of instances of the Java class Color(r, g, b, alpha). Is there any library that can be linked to SDL2 that has a function like RadialGradientPaint(…) ?
I really need to find it.

2

Since no one answered, I believe I seen people do something like this by generating a texture spotlight and changing the blend modes. I’m not sure how useful it is for you or if the java api supports it, but it could be an option

3

I’ve not seen one. If performance (speed) is not critical, you could draw several concentric circles, e.g. using SDL2_gfx, with different radii and transparency.