C# 클래스 SFML.Graphics.RenderTexture

Clear the entire render texture with black color

Clear the entire render texture with a single color

Update the contents of the target texture

Draw a drawable object to the render-target, with default render states

Draw a drawable object to the render-target

Draw primitives defined by an array of vertices, with default render states

Draw primitives defined by an array of vertices

Draw primitives defined by a sub-array of vertices, with default render states

Draw primitives defined by a sub-array of vertices

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. For this reason, calling this function only makes sense after all drawing is completed and display has been called. Not calling display after subsequent drawing will lead to undefined behavior if a mipmap had been previously generated.

Return the current active view

Get the viewport of a view applied to this target

Convert a point from world coordinates to target coordinates, using the current view This function is an overload of the mapCoordsToPixel function that implicitly uses the current view. It is equivalent to: target.MapCoordsToPixel(point, target.GetView());

Convert a point from world coordinates to target coordinates This function finds the pixel of the render-target that matches the given 2D point. In other words, it goes through the same process as the graphics card, to compute the final position of a rendered point. Initially, both coordinate systems (world units and target pixels) match perfectly. But if you define a custom view or resize your render-target, this assertion is not true anymore, ie. a point located at (150, 75) in your 2D world may map to the pixel (10, 50) of your render-target -- if the view is translated by (140, 25). This version uses a custom view for calculations, see the other overload of the function if you want to use the current view of the render-target.

Convert a point from target coordinates to world coordinates, using the current view This function is an overload of the MapPixelToCoords function that implicitly uses the current view. It is equivalent to: target.MapPixelToCoords(point, target.GetView());

Convert a point from target coordinates to world coordinates This function finds the 2D position that matches the given pixel of the render-target. In other words, it does the inverse of what the graphics card does, to find the initial position of a rendered pixel. Initially, both coordinate systems (world units and target pixels) match perfectly. But if you define a custom view or resize your render-target, this assertion is not true anymore, ie. a point located at (10, 50) in your render-target may map to the point (150, 75) in your 2D world -- if the view is translated by (140, 25). For render-windows, this function is typically used to find which point (or object) is located below the mouse cursor. This version uses a custom view for calculations, see the other overload of the function if you want to use the current view of the render-target.

Restore the previously saved OpenGL render states and matrices. See the description of PushGLStates to get a detailed description of these functions.

Save the current OpenGL render states and matrices. This function can be used when you mix SFML drawing and direct OpenGL rendering. Combined with PopGLStates, it ensures that: \li SFML's internal states are not messed up by your OpenGL code \li your OpenGL states are not modified by a call to a SFML function More specifically, it must be used around code that calls Draw functions. Example: // OpenGL code here... window.PushGLStates(); window.Draw(...); window.Draw(...); window.PopGLStates(); // OpenGL code here... Note that this function is quite expensive: it saves all the possible OpenGL states and matrices, even the ones you don't care about. Therefore it should be used wisely. It is provided for convenience, but the best results will be achieved if you handle OpenGL states yourself (because you know which states have really changed, and need to be saved and restored). Take a look at the ResetGLStates function if you do so.

Create the render-texture with the given dimensions

Create the render-texture with the given dimensions and an optional depth-buffer attached

Reset the internal OpenGL states so that the target is ready for drawing. This function can be used when you mix SFML drawing and direct OpenGL rendering, if you choose not to use PushGLStates/PopGLStates. It makes sure that all OpenGL states needed by SFML are set, so that subsequent Draw() calls will work as expected. Example: // OpenGL code here... glPushAttrib(...); window.ResetGLStates(); window.Draw(...); window.Draw(...); glPopAttrib(...); // OpenGL code here...

Activate of deactivate the render texture as the current target for rendering

Change the current active view

Provide a string describing the object

Handle the destruction of the object