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A new generation graphics and compute API that provides high-efficiency, cross-platform access to modern GPUs used in a wide variety of devices from PCs and consoles to mobile phones and embedded platforms.

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/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.vulkan;

/**
 * This extension provides a new per-viewport swizzle that can modify the position of primitives sent to each viewport. New viewport swizzle state is added for each viewport, and a new position vector is computed for each vertex by selecting from and optionally negating any of the four components of the original position vector.
 * 
 * This new viewport swizzle is useful for a number of algorithms, including single-pass cubemap rendering (broadcasting a primitive to multiple faces and reorienting the vertex position for each face) and voxel rasterization. The per-viewport component remapping and negation provided by the swizzle allows application code to re-orient three-dimensional geometry with a view along any of the X, Y, or Z axes. If a perspective projection and depth buffering is required, 1/W buffering should be used, as described in the single-pass cubemap rendering example in the "Issues" section below.
 * 
 * 
 * Name String
 * {@code VK_NV_viewport_swizzle}
 * Extension Type
 * Device extension
 * Registered Extension Number
 * 99
 * Revision
 * 1
 * Extension and Version Dependencies
 * 
 * Requires Vulkan 1.0
 * 
 * Contact
 * 
 * Piers Daniell @pdaniell
 * 
 * Last Modified Date
 * 2016-12-22
 * Interactions and External Dependencies
 * 
 * This extension requires {@code multiViewport} and {@code geometryShader} features to be useful.
 * 
 * Contributors
 * 
 * Daniel Koch, NVIDIA
 * Jeff Bolz, NVIDIA
 * 
 * 
 */
public final class NVViewportSwizzle {

    /** The extension specification version. */
    public static final int VK_NV_VIEWPORT_SWIZZLE_SPEC_VERSION = 1;

    /** The extension name. */
    public static final String VK_NV_VIEWPORT_SWIZZLE_EXTENSION_NAME = "VK_NV_viewport_swizzle";

    /** Extends {@code VkStructureType}. */
    public static final int VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_SWIZZLE_STATE_CREATE_INFO_NV = 1000098000;

    /**
     * VkViewportCoordinateSwizzleNV - Specify how a viewport coordinate is swizzled
     * 
     * Description
     * 
     * These values are described in detail in Viewport Swizzle.
     * 
     * See Also
     * 
     * {@link VkViewportSwizzleNV}
     * 
     * Enum values:
     * 
     * 
     * {@link #VK_VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_X_NV VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_X_NV}
     * {@link #VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_X_NV VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_X_NV}
     * {@link #VK_VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_Y_NV VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_Y_NV}
     * {@link #VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_Y_NV VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_Y_NV}
     * {@link #VK_VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_Z_NV VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_Z_NV}
     * {@link #VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_Z_NV VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_Z_NV}
     * {@link #VK_VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_W_NV VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_W_NV}
     * {@link #VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_W_NV VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_W_NV}
     * 
     */
    public static final int
        VK_VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_X_NV = 0,
        VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_X_NV = 1,
        VK_VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_Y_NV = 2,
        VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_Y_NV = 3,
        VK_VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_Z_NV = 4,
        VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_Z_NV = 5,
        VK_VIEWPORT_COORDINATE_SWIZZLE_POSITIVE_W_NV = 6,
        VK_VIEWPORT_COORDINATE_SWIZZLE_NEGATIVE_W_NV = 7;

    private NVViewportSwizzle() {}

}