luma.gl/data/parameters.md

withParameters(gl, { blend: false, blendColor: [0, 0, 0, 0], blendEquation: [GL.FUNC_ADD, GL.FUNC_ADD], // [GL.BLEND_EQUATION_RGB, GL.BLEND_EQUATION_ALPHA], blendFunc: [GL.ONE, GL.ZERO, GL.ONE, GL.ZERO],

clearColor: [0, 0, 0, 0], colorMask: [true, true, true, true], colorWritemask: ,

cullFace: false, cullFaceMode: GL.BACK,

depthTest: false, depthClearValue: 1, depthFunc: GL.LESS, depthRange: [0, 1], depthWritemask: true,

dither: true,

frontFace: GL.CCW,

generateMipmapHint: GL.DONT_CARE,

lineWidth: 1,

polygonOffsetFill: false, polygonOffset: [0, 0],

sampleCoverage: GL_SAMPLE_COVERAGE,

scissorTest: false, scissorBox: [0, 0, 1024, 1024],

stencilTest: false, stencilClearValue: 0, stencilMask: [0xFFFFFFFF, 0xFFFFFFFF], stencilFunc: [GL.ALWAYS, 0, 0xFFFFFFFF, GL.ALWAYS, 0, 0xFFFFFFFF], stencilOp: [GL.KEEP, GL.KEEP, GL.KEEP, GL.KEEP, GL.KEEP, GL.KEEP],

viewport: [0, 0, 1024, 1024],

[GL.PACK_ALIGNMENT: 4, [GL.UNPACK_ALIGNMENT: 4, [GL.UNPACK_FLIP_Y_WEBGL]: false, [GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL]: GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, [GL.UNPACK_COLORSPACE_CONVERSION_WEBGL]: GL.BROWSER_DEFAULT_WEBGL,

// WEBGL2 PIXEL PACK/UNPACK MODES

[GL.PACK_ROW_LENGTH: 0, [GL.PACK_SKIP_PIXELS: 0, [GL.PACK_SKIP_ROWS: 0, [GL.UNPACK_ROW_LENGTH: 0, [GL.UNPACK_IMAGE_HEIGHT: 0, [GL.UNPACK_SKIP_PIXELS: 0, [GL.UNPACK_SKIP_ROWS: 0, [GL.UNPACK_SKIP_IMAGES: 0

---

| blend | false | | | blendColor | new Float32Array([0, 0, 0, 0]) | | | blendEquation | [GL.FUNC_ADD, GL.FUNC_ADD] | | | blendFunc | [GL.ONE, GL.ZERO, GL.ONE, GL.ZERO] | |

| clearColor | new Float32Array([0, 0, 0, 0]) | | | colorMask | [true, true, true, true] | |

| cullFace | false | | | cullFaceMode | GL.BACK | |

| depthTest | false | | | depthClearValue | 1 | | | depthFunc | GL.LESS | | | depthRange | new Float32Array([0, 1]) | | | depthWritemask | true | |

| dither | true | |

| fragmentShaderDerivativeHint | GL.DONT_CARE | |

| frontFace | GL.CCW | | | generateMipmapHint | GL.DONT_CARE, // Hint for quality of images generated with glGenerateMipmap |

| lineWidth | 1 | No longer supported by most browsers |

| polygonOffsetFill | false | Add small offset to fragment depth values | | polygonOffset | [0, 0] | factor × DZ + r × units |

| sampleCoverage | | GL_SAMPLE_ALPHA_TO_COVERAGE | | GL_SAMPLE_COVERAGE | specify multisample coverage parameters |

| sampleCoverage | [1.0, false], | scissorTest | false | | | scissorBox | new Int32Array([0, 0, 1024, 1024]) | | | stencilTest | false | | | stencilClearValue | 0 | Sets index used when stencil buffer is cleared | | stencilMask | [0xFFFFFFFF, 0xFFFFFFFF] | Sets bit mask enabling writing of individual bits in the stencil planes | | stencilFunc | [GL.ALWAYS, 0, 0xFFFFFFFF, GL.ALWAYS, 0, 0xFFFFFFFF] | Set stencil testing function, reference value and mask for front and back | | stencilOp | [GL.KEEP, GL.KEEP, GL.KEEP, GL.KEEP, GL.KEEP, GL.KEEP] | Specifies the action to take when the stencil test fails, front and back | | viewport | new Int32Array([0, 0, 1024, 1024]) | |

| WEBGL1 PIXEL PACK/UNPACK MODES | | |

| [GL.PACK_ALIGNMENT] | 4, // Packing of pixel data in memory (1,2,4,8) | [GL.UNPACK_ALIGNMENT] | 4, // Unpacking pixel data from memory(1,2,4,8) | [GL.UNPACK_FLIP_Y_WEBGL]: false, // Flip source data along its vertical axis | [GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL]:GL.UNPACK_PREMULTIPLY_ALPHA_WEBGL, // Multiplies the alpha channel into the other color channels | [GL.UNPACK_COLORSPACE_CONVERSION_WEBGL]:GL.BROWSER_DEFAULT_WEBGL, // Default color space conversion or no color space conversion.

WEBGL2 PIXEL PACK/UNPACK MODES

| [GL.PACK_ROW_LENGTH] | 0, // Number of pixels in a row. | [GL.PACK_SKIP_PIXELS] | 0,// Number of pixels skipped before the first pixel is written into memory. | [GL.PACK_SKIP_ROWS] | 0, // Number of rows of pixels skipped before first pixel is written to memory. | [GL.UNPACK_ROW_LENGTH] | 0, // Number of pixels in a row. | [GL.UNPACK_IMAGE_HEIGHT] | 0, // Image height used for reading pixel data from memory | [GL.UNPACK_SKIP_PIXELS] | 0, // Number of pixel images skipped before first pixel is read from memory | [GL.UNPACK_SKIP_ROWS] | 0, // Number of rows of pixels skipped before first pixel is read from memory | [GL.UNPACK_SKIP_IMAGES] | 0 | Number of pixel images skipped before first pixel is read from memory