nudsfml.graphics.rendertexture

$(U RenderTexture) is the little brother of $(RENDERWINDOW_LINK). It implements the same 2D drawing and OpenGL-related functions (see their base class $(RENDERTARGET_LINK) for more details), the difference is that the result is stored in an off-screen texture rather than being show in a window.

Rendering to a texture can be useful in a variety of situations:

precomputing a complex static texture (like a level's background from multiple tiles)
applying post-effects to the whole scene with shaders
creating a sprite from a 3D object rendered with OpenGL
etc.

Members

Classes

RenderTexture class RenderTexture: Target for off-screen 2D rendering into a texture.

Examples

// Create a new render-window
auto window = new RenderWindow(VideoMode(800, 600), "DSFML window");

// Create a new render-texture
auto texture = new RenderTexture();
if (!texture.create(500, 500))
    return -1;

// The main loop
while (window.isOpen())
{
   // Event processing
   // ...

   // Clear the whole texture with red color
   texture.clear(Color.Red);

   // Draw stuff to the texture
   texture.draw(sprite);
   texture.draw(shape);
   texture.draw(text);

   // We're done drawing to the texture
   texture.display();

   // Now we start rendering to the window, clear it first
   window.clear();

   // Draw the texture
   auto sprite = new Sprite(texture.getTexture());
   window.draw(sprite);

   // End the current frame and display its contents on screen
   window.display();
}

$(PARA Like $(RENDERWINDOW_LINK), $(U RenderTexture) is still able to render direct OpenGL stuff. It is even possible to mix together OpenGL calls and regular DSFML drawing commands. If you need a depth buffer for 3D rendering, don't forget to request it when calling `RenderTexture.create`.)

nudsfml.graphics.rendertexture

Members

Classes

Examples

See Also

Meta

Source