SDL_SetRenderColorScale - Set the color scale used for render operations.

       This function is available since SDL 3.2.0.

       The color scale is an additional scale multiplied into the pixel color value while rendering. This can be
       used  to  adjust  the  brightness  of  colors during HDR rendering, or changing HDR video brightness when
       playing on an SDR display.

       The color scale does not affect the alpha channel, only the color brightness.

renderer
              the rendering context.

       scale  the color scale value.

       SDL_SetRenderColorScale - Set the color scale used for render operations.

       for more information.

SDL_GetRenderColorScale(3)

Simple Directmedia Layer                           SDL 3.2.20                         SDL_SetRenderColorScale(3)

#include<SDL3/SDL_render.h>boolSDL_SetRenderColorScale(SDL_Renderer*renderer,floatscale);

       This function should only be called on the main thread.