Direct3D 11 Structures

This section details the core structures used in Direct3D 11 programming. These structures represent various states, parameters, and configurations for rendering and device management.

Core Data Structures

D3D11_BOX Defines a rectangular subregion within a texture or buffer. Used for operations like copy, resolve, or subresource updates.
D3D11_VIEWPORT Defines the viewport, which maps the 3D scene to the 2D render target. Includes position, dimensions, and depth range.
D3D11_RECT Defines a rectangular region. Often used for scissor rectangles to clip rendering.
D3D11_SAMPLER_DESC Describes the sampler state, including texture addressing modes, filtering options, and comparison functions.
D3D11_SHADER_RESOURCE_VIEW_DESC Describes a shader resource view, defining which part of a resource (like a texture or buffer) a shader can access.
D3D11_RENDER_TARGET_VIEW_DESC Describes a render target view, defining which part of a resource can be written to by the output merger stage.
D3D11_DEPTH_STENCIL_VIEW_DESC Describes a depth-stencil view, defining which part of a resource can be used for depth and stencil testing.
D3D11_DEPTH_STENCIL_DESC Describes the depth-stencil state, including depth test parameters and stencil buffer operations.
D3D11_RASTERIZER_DESC Describes the rasterizer state, controlling polygon rendering, culling, and anti-aliasing.

Resource Description Structures

D3D11_TEXTURE1D_DESC Describes a 1D texture.
D3D11_TEXTURE2D_DESC Describes a 2D texture.
D3D11_TEXTURE3D_DESC Describes a 3D texture.
D3D11_BUFFER_DESC Describes a buffer, which can be used for vertex data, index data, constant data, or unordered access.

Input Layout Structures

D3D11_INPUT_ELEMENT_DESC Defines an input element for the input assembler stage, mapping vertex buffer data to shader semantics.

Shader Related Structures

D3D11_SUBRESOURCE_DATA Provides initial data for a subresource (e.g., a texture or buffer) when it's created.
D3D11_SHADER_DESC Contains information about a shader, such as the number of constant buffers, texture resources, etc.

Example: D3D11_VIEWPORT

The D3D11_VIEWPORT structure is crucial for defining the rendering area on the screen.

typedef struct D3D11_VIEWPORT {
    FLOAT TopLeftX;
    FLOAT TopLeftY;
    FLOAT Width;
    FLOAT Height;
    FLOAT MinDepth;
    FLOAT MaxDepth;
} D3D11_VIEWPORT;

- TopLeftX, TopLeftY: Specify the upper-left corner of the viewport in screen coordinates.
- Width, Height: Define the dimensions of the viewport.
- MinDepth, MaxDepth: Define the range of depth values (typically 0.0 to 1.0).

Windows API Reference