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How to create a rendertexture class in SFML?
Like sf::RenderWindow, sf::RenderTexture is still able to render direct OpenGL stuff. It is even possible to mix together OpenGL calls and regular SFML drawing commands. If you need a depth buffer for 3D rendering, don’t forget to request it when calling RenderTexture::create. Definition at line 48 of file RenderTexture.hpp. Default constructor.
How to draw a 2D object in SFML?
Fortunately, SFML provides a graphics module which will help you draw 2D entities in a much simpler way than with OpenGL. To draw the entities provided by the graphics module, you must use a specialized window class: sf::RenderWindow. This class is derived from sf::Window, and inherits all its functions.
How to make a screen shot in SFML?
Closes the window and frees all the resources attached to it. Copy the current contents of the window to an image. Use a sf::Texture and its sf::Texture::update (const Window&) function and copy its contents into an sf::Image instead. This is a slow operation, whose main purpose is to make screenshots of the application.
What are the functions of renderwindow in SFML?
On top of that, sf::RenderWindow adds high-level functions to help you draw things easily. In this tutorial we’ll focus on two of these functions: clear and draw. They are as simple as their name implies: clear clears the whole window with the chosen color, and draw draws whatever object you pass to it.
How are the draw primitives defined in SFML?
Draw primitives defined by a vertex buffer. Generate a mipmap using the current texture data. This function is similar to Texture::generateMipmap and operates on the texture used as the target for drawing. Be aware that any draw operation may modify the base level image data.
When to call the render-texture function in OpenGL?
Create the render-texture. Before calling this function, the render-texture is in an invalid state, thus it is mandatory to call it before doing anything with the render-texture. The last parameter, depthBuffer, is useful if you want to use the render-texture for 3D OpenGL rendering that requires a depth buffer.
How to get a reference to a texture?
Implements sf::RenderTarget. Get a read-only reference to the target texture. After drawing to the render-texture and calling Display, you can retrieve the updated texture using this function, and draw it using a sprite (for example).