How to use the troika-three-utils.expandShaderIncludes function in troika-three-utils
To help you get started, we’ve selected a few troika-three-utils examples, based on popular ways it is used in public projects.
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protectwise / troika / packages / troika-3d / src / facade / instancing / InstancingShaderUpgrades.js View on Github 
export function upgradeShaders(vertexShader, fragmentShader, instanceUniforms=[]) {
// Pre-expand includes
vertexShader = expandShaderIncludes(vertexShader)
fragmentShader = expandShaderIncludes(fragmentShader)
// See what gets used
let usesModelMatrix = modelMatrixRefRE.test(vertexShader)
let usesModelViewMatrix = modelViewMatrixRefRE.test(vertexShader)
let usesNormalMatrix = normalMatrixRefRE.test(vertexShader)
// Find what uniforms are declared in which shader and their types
let vertexUniforms = getShaderUniformTypes(vertexShader)
let fragmentUniforms = getShaderUniformTypes(fragmentShader)
let vertexDeclarations = [modelMatrixRowAttrs]
let vertexAssignments = []
let fragmentDeclarations = []
// Add variable assignments for, and rewrite references to, builtin matrices
if (usesModelMatrix || usesModelViewMatrix || usesNormalMatrix) {export function upgradeShaders(vertexShader, fragmentShader, instanceUniforms=[]) {
// Pre-expand includes
vertexShader = expandShaderIncludes(vertexShader)
fragmentShader = expandShaderIncludes(fragmentShader)
// See what gets used
let usesModelMatrix = modelMatrixRefRE.test(vertexShader)
let usesModelViewMatrix = modelViewMatrixRefRE.test(vertexShader)
let usesNormalMatrix = normalMatrixRefRE.test(vertexShader)
// Find what uniforms are declared in which shader and their types
let vertexUniforms = getShaderUniformTypes(vertexShader)
let fragmentUniforms = getShaderUniformTypes(fragmentShader)
let vertexDeclarations = [modelMatrixRowAttrs]
let vertexAssignments = []
let fragmentDeclarations = []
// Add variable assignments for, and rewrite references to, builtin matricestroika-three-utils
Various utilities related to Three.js
