/** Defines the cross module used constants to avoid circular dependncies */
export class Constants {
    /** Defines that alpha blending is disabled */
    public static readonly ALPHA_DISABLE = 0;
    /** Defines that alpha blending to SRC ALPHA * SRC + DEST */
    public static readonly ALPHA_ADD = 1;
    /** Defines that alpha blending to SRC ALPHA * SRC + (1 - SRC ALPHA) * DEST */
    public static readonly ALPHA_COMBINE = 2;
    /** Defines that alpha blending to DEST - SRC * DEST */
    public static readonly ALPHA_SUBTRACT = 3;
    /** Defines that alpha blending to SRC * DEST */
    public static readonly ALPHA_MULTIPLY = 4;
    /** Defines that alpha blending to SRC ALPHA * SRC + (1 - SRC) * DEST */
    public static readonly ALPHA_MAXIMIZED = 5;
    /** Defines that alpha blending to SRC + DEST */
    public static readonly ALPHA_ONEONE = 6;
    /** Defines that alpha blending to SRC + (1 - SRC ALPHA) * DEST */
    public static readonly ALPHA_PREMULTIPLIED = 7;
    /**
     * Defines that alpha blending to SRC + (1 - SRC ALPHA) * DEST
     * Alpha will be set to (1 - SRC ALPHA) * DEST ALPHA
     */
    public static readonly ALPHA_PREMULTIPLIED_PORTERDUFF = 8;
    /** Defines that alpha blending to CST * SRC + (1 - CST) * DEST */
    public static readonly ALPHA_INTERPOLATE = 9;
    /**
     * Defines that alpha blending to SRC + (1 - SRC) * DEST
     * Alpha will be set to SRC ALPHA + (1 - SRC ALPHA) * DEST ALPHA
     */
    public static readonly ALPHA_SCREENMODE = 10;

    /** Defines that the ressource is not delayed*/
    public static readonly DELAYLOADSTATE_NONE = 0;
    /** Defines that the ressource was successfully delay loaded */
    public static readonly DELAYLOADSTATE_LOADED = 1;
    /** Defines that the ressource is currently delay loading */
    public static readonly DELAYLOADSTATE_LOADING = 2;
    /** Defines that the ressource is delayed and has not started loading */
    public static readonly DELAYLOADSTATE_NOTLOADED = 4;

    // Depht or Stencil test Constants.
    /** Passed to depthFunction or stencilFunction to specify depth or stencil tests will never pass. i.e. Nothing will be drawn */
    public static readonly NEVER = 0x0200;
    /** Passed to depthFunction or stencilFunction to specify depth or stencil tests will always pass. i.e. Pixels will be drawn in the order they are drawn */
    public static readonly ALWAYS = 0x0207;
    /** Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is less than the stored value */
    public static readonly LESS = 0x0201;
    /** Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is equals to the stored value */
    public static readonly EQUAL = 0x0202;
    /** Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is less than or equal to the stored value */
    public static readonly LEQUAL = 0x0203;
    /** Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is greater than the stored value */
    public static readonly GREATER = 0x0204;
    /** Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is greater than or equal to the stored value */
    public static readonly GEQUAL = 0x0206;
    /** Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is not equal to the stored value */
    public static readonly NOTEQUAL = 0x0205;

    // Stencil Actions Constants.
    /** Passed to stencilOperation to specify that stencil value must be kept */
    public static readonly KEEP = 0x1E00;
    /** Passed to stencilOperation to specify that stencil value must be replaced */
    public static readonly REPLACE = 0x1E01;
    /** Passed to stencilOperation to specify that stencil value must be incremented */
    public static readonly INCR = 0x1E02;
    /** Passed to stencilOperation to specify that stencil value must be decremented */
    public static readonly DECR = 0x1E03;
    /** Passed to stencilOperation to specify that stencil value must be inverted */
    public static readonly INVERT = 0x150A;
    /** Passed to stencilOperation to specify that stencil value must be incremented with wrapping */
    public static readonly INCR_WRAP = 0x8507;
    /** Passed to stencilOperation to specify that stencil value must be decremented with wrapping */
    public static readonly DECR_WRAP = 0x8508;

    /** Texture is not repeating outside of 0..1 UVs */
    public static readonly TEXTURE_CLAMP_ADDRESSMODE = 0;
    /** Texture is repeating outside of 0..1 UVs */
    public static readonly TEXTURE_WRAP_ADDRESSMODE = 1;
    /** Texture is repeating and mirrored */
    public static readonly TEXTURE_MIRROR_ADDRESSMODE = 2;

    /** ALPHA */
    public static readonly TEXTUREFORMAT_ALPHA = 0;
    /** LUMINANCE */
    public static readonly TEXTUREFORMAT_LUMINANCE = 1;
    /** LUMINANCE_ALPHA */
    public static readonly TEXTUREFORMAT_LUMINANCE_ALPHA = 2;
    /** RGB */
    public static readonly TEXTUREFORMAT_RGB = 4;
    /** RGBA */
    public static readonly TEXTUREFORMAT_RGBA = 5;
    /** RED */
    public static readonly TEXTUREFORMAT_RED = 6;
    /** RED (2nd reference) */
    public static readonly TEXTUREFORMAT_R = 6;
    /** RG */
    public static readonly TEXTUREFORMAT_RG = 7;
    /** RED_INTEGER */
    public static readonly TEXTUREFORMAT_RED_INTEGER = 8;
    /** RED_INTEGER (2nd reference) */
    public static readonly TEXTUREFORMAT_R_INTEGER = 8;
    /** RG_INTEGER */
    public static readonly TEXTUREFORMAT_RG_INTEGER = 9;
    /** RGB_INTEGER */
    public static readonly TEXTUREFORMAT_RGB_INTEGER = 10;
    /** RGBA_INTEGER */
    public static readonly TEXTUREFORMAT_RGBA_INTEGER = 11;

    /** UNSIGNED_BYTE */
    public static readonly TEXTURETYPE_UNSIGNED_BYTE = 0;
    /** UNSIGNED_BYTE (2nd reference) */
    public static readonly TEXTURETYPE_UNSIGNED_INT = 0;
    /** FLOAT */
    public static readonly TEXTURETYPE_FLOAT = 1;
    /** HALF_FLOAT */
    public static readonly TEXTURETYPE_HALF_FLOAT = 2;
    /** BYTE */
    public static readonly TEXTURETYPE_BYTE = 3;
    /** SHORT */
    public static readonly TEXTURETYPE_SHORT = 4;
    /** UNSIGNED_SHORT */
    public static readonly TEXTURETYPE_UNSIGNED_SHORT = 5;
    /** INT */
    public static readonly TEXTURETYPE_INT = 6;
    /** UNSIGNED_INT */
    public static readonly TEXTURETYPE_UNSIGNED_INTEGER = 7;
    /** UNSIGNED_SHORT_4_4_4_4 */
    public static readonly TEXTURETYPE_UNSIGNED_SHORT_4_4_4_4 = 8;
    /** UNSIGNED_SHORT_5_5_5_1 */
    public static readonly TEXTURETYPE_UNSIGNED_SHORT_5_5_5_1 = 9;
    /** UNSIGNED_SHORT_5_6_5 */
    public static readonly TEXTURETYPE_UNSIGNED_SHORT_5_6_5 = 10;
    /** UNSIGNED_INT_2_10_10_10_REV */
    public static readonly TEXTURETYPE_UNSIGNED_INT_2_10_10_10_REV = 11;
    /** UNSIGNED_INT_24_8 */
    public static readonly TEXTURETYPE_UNSIGNED_INT_24_8 = 12;
    /** UNSIGNED_INT_10F_11F_11F_REV */
    public static readonly TEXTURETYPE_UNSIGNED_INT_10F_11F_11F_REV = 13;
    /** UNSIGNED_INT_5_9_9_9_REV */
    public static readonly TEXTURETYPE_UNSIGNED_INT_5_9_9_9_REV = 14;
    /** FLOAT_32_UNSIGNED_INT_24_8_REV */
    public static readonly TEXTURETYPE_FLOAT_32_UNSIGNED_INT_24_8_REV = 15;

    /** nearest is mag = nearest and min = nearest and mip = linear */
    public static readonly TEXTURE_NEAREST_SAMPLINGMODE = 1;
    /** Bilinear is mag = linear and min = linear and mip = nearest */
    public static readonly TEXTURE_BILINEAR_SAMPLINGMODE = 2;
    /** Trilinear is mag = linear and min = linear and mip = linear */
    public static readonly TEXTURE_TRILINEAR_SAMPLINGMODE = 3;
    /** nearest is mag = nearest and min = nearest and mip = linear */
    public static readonly TEXTURE_NEAREST_NEAREST_MIPLINEAR = 1;
    /** Bilinear is mag = linear and min = linear and mip = nearest */
    public static readonly TEXTURE_LINEAR_LINEAR_MIPNEAREST = 2;
    /** Trilinear is mag = linear and min = linear and mip = linear */
    public static readonly TEXTURE_LINEAR_LINEAR_MIPLINEAR = 3;
    /** mag = nearest and min = nearest and mip = nearest */
    public static readonly TEXTURE_NEAREST_NEAREST_MIPNEAREST = 4;
    /** mag = nearest and min = linear and mip = nearest */
    public static readonly TEXTURE_NEAREST_LINEAR_MIPNEAREST = 5;
    /** mag = nearest and min = linear and mip = linear */
    public static readonly TEXTURE_NEAREST_LINEAR_MIPLINEAR = 6;
    /** mag = nearest and min = linear and mip = none */
    public static readonly TEXTURE_NEAREST_LINEAR = 7;
    /** mag = nearest and min = nearest and mip = none */
    public static readonly TEXTURE_NEAREST_NEAREST = 8;
    /** mag = linear and min = nearest and mip = nearest */
    public static readonly TEXTURE_LINEAR_NEAREST_MIPNEAREST = 9;
    /** mag = linear and min = nearest and mip = linear */
    public static readonly TEXTURE_LINEAR_NEAREST_MIPLINEAR = 10;
    /** mag = linear and min = linear and mip = none */
    public static readonly TEXTURE_LINEAR_LINEAR = 11;
    /** mag = linear and min = nearest and mip = none */
    public static readonly TEXTURE_LINEAR_NEAREST = 12;

    /** Explicit coordinates mode */
    public static readonly TEXTURE_EXPLICIT_MODE = 0;
    /** Spherical coordinates mode */
    public static readonly TEXTURE_SPHERICAL_MODE = 1;
    /** Planar coordinates mode */
    public static readonly TEXTURE_PLANAR_MODE = 2;
    /** Cubic coordinates mode */
    public static readonly TEXTURE_CUBIC_MODE = 3;
    /** Projection coordinates mode */
    public static readonly TEXTURE_PROJECTION_MODE = 4;
    /** Skybox coordinates mode */
    public static readonly TEXTURE_SKYBOX_MODE = 5;
    /** Inverse Cubic coordinates mode */
    public static readonly TEXTURE_INVCUBIC_MODE = 6;
    /** Equirectangular coordinates mode */
    public static readonly TEXTURE_EQUIRECTANGULAR_MODE = 7;
    /** Equirectangular Fixed coordinates mode */
    public static readonly TEXTURE_FIXED_EQUIRECTANGULAR_MODE = 8;
    /** Equirectangular Fixed Mirrored coordinates mode */
    public static readonly TEXTURE_FIXED_EQUIRECTANGULAR_MIRRORED_MODE = 9;

    // Texture rescaling mode
    /** Defines that texture rescaling will use a floor to find the closer power of 2 size */
    public static readonly SCALEMODE_FLOOR = 1;
    /** Defines that texture rescaling will look for the nearest power of 2 size */
    public static readonly SCALEMODE_NEAREST = 2;
    /** Defines that texture rescaling will use a ceil to find the closer power of 2 size */
    public static readonly SCALEMODE_CEILING = 3;

    /**
     * The dirty texture flag value
     */
    public static readonly MATERIAL_TextureDirtyFlag = 1;

    /**
     * The dirty light flag value
     */
    public static readonly MATERIAL_LightDirtyFlag = 2;

    /**
     * The dirty fresnel flag value
     */
    public static readonly MATERIAL_FresnelDirtyFlag = 4;

    /**
     * The dirty attribute flag value
     */
    public static readonly MATERIAL_AttributesDirtyFlag = 8;

    /**
     * The dirty misc flag value
     */
    public static readonly MATERIAL_MiscDirtyFlag = 16;

    /**
     * The all dirty flag value
     */
    public static readonly MATERIAL_AllDirtyFlag = 31;
}