{
  "name": "@exercise/texture-units",
  "version": "1.0.0",
  "main": "server.js",
  "dependencies": {},
  "scripts": {
    "start": "node server.js"
  },
  "readme": "# Exercise\n\nFor this exercise, you should create and bind a pair of textures whose contents are in BG1 and BG2.  Filtering on the textures should use `gl.NEAREST` and they should be periodic along both axes.\n\nThe texture for BG1 should be bound to texture unit 0 and the texture for BG2 should be bound to texture unit 1.\n\n# Texture units\n\nIn order to use more than one texture at a time in a shader, it is necessary to bind the input textures to different texture unit.  A texture unit is basically a slot into which you can store a given texture unit.\n\nTo select a texture unit, you use the `gl.activeTexture` function.  For example, to select texture unit 0, you would do:\n\n```javascript\ngl.activeTexture(gl.TEXTURE0)\n```\n\nThen any subsequent calls to `gl.bindTexture()` would store the texture in the first slot.  To bind to other texture units, you add the number of the unit you want to bind to the `gl.TEXTURE0` parameter.  For example, here is how you select texture unit 5:\n\n```javascript\n//Set texture unit 5 as active\ngl.activeTexture(gl.TEXTURE0 + 5)\n```\n\nOnce you have a texture bound on a texture unit, you can tell you shader to use it by sending the number of the texture unit using `gl.uniform1i`.  For example, suppose that we have a shader with the following uniform:\n\n```glsl\nuniform sampler2D MyTexture;\n```\n\nAnd suppose that we want to set `myTexture` to read from texture unit 2.  Then in WebGL, we can run the following command:\n\n```javascript\ngl.uniform1i(uMyTexture, 2)\n```\n",
  "readmeFilename": "README.md",
  "description": "For this exercise, you should create and bind a pair of textures whose contents are in BG1 and BG2.  Filtering on the textures should use `gl.NEAREST` and they should be periodic along both axes.",
  "_id": "@exercise/texture-units@1.0.0",
  "_shasum": "f73e6b78878091270b3278d221dd9b37bc8d4b76",
  "_from": "exercises/texture-units",
  "_resolved": "file:exercises/texture-units"
}