So the viewport is not meant to be nested?
For example, I made an array that hold the position of 10 viewports
like
SDL_Rect vpArray[10] = NULL;
vpArray[0] = new SDL_Rect {0, 0, 100, 100};
vpArray[1] = new SDL_Rect {10, 10, 90, 90};
vpArray[2] = new SDL_Rect {20, 20, 80, 80};
vpArray[3] = new SDL_Rect {30, 30, 70, 70};
vpArray[4] = new SDL_Rect {40, 40, 60, 60};
vpArray[5] = new SDL_Rect {50, 50, 50, 50};
vpArray[6] = new SDL_Rect {60, 60, 40, 40};
vpArray[7] = new SDL_Rect {70, 70, 30, 30};
vpArray[8] = new SDL_Rect {80, 80, 20, 20};
vpArray[9] = new SDL_Rect {90, 90, 10, 10};
// Rendering rects
SDL_Rect fullVpRect = {0, 0, 100, 100};
for(int i = 0; i <= 9; i++)
{
SDL_RenderSetViewport(mRenderer, vpArray[i]);
SDL_SetRenderDrawColor(mRenderer, 0, 0, 0, 0xff);
if(i & 2 == 0)
SDL_SetRenderDrawColor(mRenderer, 0xff, 0xff, 0xff, 0xff);
SDL_RenderFillRect(mRenderer,&fullVpRect);
}
Something like this?
Thank you very much.