I am trying to render a Texture with Alpha-Channel to my Window but it shows up with dark/black edges on some parts of the Texture.
The Image is loaded via the SDL_image library
IMG_Load(img_path) and later
converted to a Texture using
The Texture has a Alpha-Channel and I would like to blend it onto the Screen.
SDL_SetTextureBlendMode(img_texture, SDL_BLENDMODE_BLEND) to set the Blend-Mode.
The Renderer is created with
SDL_CreateRenderer(m_window, -1, SDL_RENDERER_ACCELERATED);.
My Problem does not occur when using
SDL_BLENDMODE_ADD but this mode is not suitable for what I am trying to achieve.
I’ve also tried:
- to write a custom Blend-Mode that emulates the behavior of the BLEND-Mode, same Problem.
- to change the
"2"with always the same outcome.
This is an Image of my Problem:
Black edges on Texture
This is how it should look like:
Now without any black lines
Why could this happen? I am trying to fix this for hours now and every link on several google-pages is now purple.
The Codebase I am working with is relatively large so I can’t copy/paste anything useful,
because of lack of context.
Sorry, I forgot to mention that this behavior also only appears when
scaling the Image (un-)proportional.
Source: Windows Questions C++