Struct vulkano::framebuffer::Framebuffer

pub struct Framebuffer<Rp, A> { /* fields omitted */ }

Contains a render pass and the image views that are attached to it.

Creating a framebuffer is done by calling Framebuffer::start, which returns a FramebufferBuilder object. You can then add the framebuffer attachments one by one by calling add(image). When you are done, call build().

Both the add and the build functions perform various checks to make sure that the number of images is correct and that each image is compatible with the attachment definition in the render pass.

use vulkano::framebuffer::Framebuffer;

// let render_pass: Arc<_> = ...;
let framebuffer = Framebuffer::start(render_pass.clone())
    .add(my_image).unwrap()
    .build().unwrap();

Just like render pass objects implement the RenderPassAbstract trait, all framebuffer objects implement the FramebufferAbstract trait. This means that you can cast any Arc<Framebuffer<..>> into an Arc<FramebufferAbstract + Send + Sync> for easier storage.

Framebuffer dimensions

If you use Framebuffer::start() to create a framebuffer then vulkano will automatically make sure that all the attachments have the same dimensions, as this is the most common situation.

Alternatively you can also use with_intersecting_dimensions, in which case the dimensions of the framebuffer will be the intersection of the dimensions of all attachments, or with_dimensions if you want to specify exact dimensions. If you use with_dimensions, you are allowed to attach images that are larger than these dimensions.

If the dimensions of the framebuffer don't match the dimensions of one of its attachment, then only the top-left hand corner of the image will be drawn to.

Methods

impl<Rp> Framebuffer<Rp, ()>

fn start(render_pass: Rp) -> FramebufferBuilder<Rp, ()>

Starts building a framebuffer.

fn with_intersecting_dimensions(render_pass: Rp) -> FramebufferBuilder<Rp, ()>

Starts building a framebuffer. The dimensions of the framebuffer will automatically be the intersection of the dimensions of all the attachments.

fn with_dimensions(
    render_pass: Rp,
    dimensions: [u32; 3]
) -> FramebufferBuilder<Rp, ()>

Starts building a framebuffer.

impl<Rp, A> Framebuffer<Rp, A>

fn dimensions(&self) -> [u32; 3]

Returns the width, height and layers of this framebuffer.

fn width(&self) -> u32

Returns the width of the framebuffer in pixels.

fn height(&self) -> u32

Returns the height of the framebuffer in pixels.

fn layers(&self) -> u32

Returns the number of layers (or depth) of the framebuffer.

fn device(&self) -> &Arc<Device>

Returns the device that was used to create this framebuffer.

fn render_pass(&self) -> &Rp

Returns the renderpass that was used to create this framebuffer.

Trait Implementations

impl<Rp: Debug, A: Debug> Debug for Framebuffer<Rp, A>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<Rp, A> FramebufferAbstract for Framebuffer<Rp, A> where
    Rp: RenderPassAbstract,
    A: AttachmentsList, 

fn inner(&self) -> FramebufferSys

Returns an opaque struct that represents the framebuffer's internals.

fn dimensions(&self) -> [u32; 3]

Returns the width, height and array layers of the framebuffer.

fn attached_image_view(&self, index: usize) -> Option<&ImageViewAccess>

Returns the attachment of the framebuffer with the given index.

fn width(&self) -> u32

Returns the width of the framebuffer in pixels.

fn height(&self) -> u32

Returns the height of the framebuffer in pixels.

fn layers(&self) -> u32

Returns the number of layers (or depth) of the framebuffer.

impl<Rp, A> RenderPassDesc for Framebuffer<Rp, A> where
    Rp: RenderPassDesc, 

fn num_attachments(&self) -> usize

Returns the number of attachments of the render pass.

fn attachment_desc(&self, num: usize) -> Option<LayoutAttachmentDescription>

Returns the description of an attachment.

fn num_subpasses(&self) -> usize

Returns the number of subpasses of the render pass.

fn subpass_desc(&self, num: usize) -> Option<LayoutPassDescription>

Returns the description of a subpass.

fn num_dependencies(&self) -> usize

Returns the number of dependencies of the render pass.

fn dependency_desc(&self, num: usize) -> Option<LayoutPassDependencyDescription>

Returns the description of a dependency.

fn attachment_descs(&self) -> RenderPassDescAttachments<Self> where
    Self: Sized, 

Returns an iterator to the list of attachments.

fn subpass_descs(&self) -> RenderPassDescSubpasses<Self> where
    Self: Sized, 

Returns an iterator to the list of subpasses.

fn dependency_descs(&self) -> RenderPassDescDependencies<Self> where
    Self: Sized, 

Returns an iterator to the list of dependencies.

fn is_compatible_with<T: ?Sized>(&self, other: &T) -> bool where
    Self: Sized,
    T: RenderPassDesc, 

Returns true if this render pass is compatible with another render pass.

fn build_render_pass(
    self,
    device: Arc<Device>
) -> Result<RenderPass<Self>, RenderPassCreationError> where
    Self: Sized, 

Builds a render pass from this description.

fn num_color_attachments(&self, subpass: u32) -> Option<u32>

Returns the number of color attachments of a subpass. Returns None if out of range.

fn num_samples(&self, subpass: u32) -> Option<u32>

Returns the number of samples of the attachments of a subpass. Returns None if out of range or if the subpass has no attachment. TODO: return an enum instead?

fn has_depth_stencil_attachment(&self, subpass: u32) -> Option<(bool, bool)>

Returns a tuple whose first element is true if there's a depth attachment, and whose second element is true if there's a stencil attachment. Returns None if out of range.

fn has_depth(&self, subpass: u32) -> Option<bool>

Returns true if a subpass has a depth attachment or a depth-stencil attachment.

fn has_writable_depth(&self, subpass: u32) -> Option<bool>

Returns true if a subpass has a depth attachment or a depth-stencil attachment whose layout is not DepthStencilReadOnlyOptimal.

fn has_stencil(&self, subpass: u32) -> Option<bool>

Returns true if a subpass has a stencil attachment or a depth-stencil attachment.

fn has_writable_stencil(&self, subpass: u32) -> Option<bool>

Returns true if a subpass has a stencil attachment or a depth-stencil attachment whose layout is not DepthStencilReadOnlyOptimal.

impl<C, Rp, A> RenderPassDescClearValues<C> for Framebuffer<Rp, A> where
    Rp: RenderPassDescClearValues<C>, 

fn convert_clear_values(&self, vals: C) -> Box<Iterator<Item = ClearValue>>

Decodes a C into a list of clear values where each element corresponds to an attachment. The size of the returned iterator must be the same as the number of attachments.

impl<Rp, A> RenderPassAbstract for Framebuffer<Rp, A> where
    Rp: RenderPassAbstract, 

fn inner(&self) -> RenderPassSys

Returns an opaque object representing the render pass' internals.

impl<Rp, A> DeviceOwned for Framebuffer<Rp, A>

fn device(&self) -> &Arc<Device>

Returns the device that owns Self.

impl<Rp, A> Drop for Framebuffer<Rp, A>

fn drop(&mut self)

A method called when the value goes out of scope.