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index.js
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index.js
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const path = require('path')
const vec3 = require('pex-math/vec3')
const vec4 = require('pex-math/vec4')
const mat3 = require('pex-math/mat3')
const mat4 = require('pex-math/mat4')
const aabb = require('pex-geom/aabb')
const createProfiler = require('./profiler')
const isBrowser = require('is-browser')
const createEntity = require('./entity')
const createTransform = require('./transform')
const createSkin = require('./skin')
const createMorph = require('./morph')
const createAnimation = require('./animation')
const createGeometry = require('./geometry')
const createMaterial = require('./material')
const createCamera = require('./camera')
const createPostProcessing = require('./post-processing')
const createOrbiter = require('./orbiter')
const createAmbientLight = require('./ambient-light')
const createDirectionalLight = require('./directional-light')
const createPointLight = require('./point-light')
const createSpotLight = require('./spot-light')
const createAreaLight = require('./area-light')
const createReflectionProbe = require('./reflection-probe')
const createSkybox = require('./skybox')
const createOverlay = require('./overlay')
const createBoundingBoxHelper = require('./helpers/bounding-box-helper')
const createLightHelper = require('./helpers/light-helper')
const createCameraHelper = require('./helpers/camera-helper')
const createAxisHelper = require('./helpers/axis-helper')
const createGridHelper = require('./helpers/grid-helper')
const loadGltf = require('./loaders/glTF')
const createGeomBuilder = require('geom-builder')
const PBR_VERT = require('./shaders/pipeline/material.vert.js')
const PBR_FRAG = require('./shaders/pipeline/material.frag.js')
const DEPTH_PASS_VERT = require('./shaders/pipeline/depth-pass.vert.js')
const DEPTH_PASS_FRAG = require('./shaders/pipeline/depth-pass.frag.js')
const DEPTH_PRE_PASS_FRAG = require('./shaders/pipeline/depth-pre-pass.frag.js')
const OVERLAY_VERT = require('./shaders/pipeline/overlay.vert.js')
const OVERLAY_FRAG = require('./shaders/pipeline/overlay.frag.js')
const HELPER_VERT = require('./shaders/pipeline/helper.vert.js')
const HELPER_FRAG = require('./shaders/pipeline/helper.frag.js')
const ERROR_VERT = require('./shaders/error/error.vert.js')
const ERROR_FRAG = require('./shaders/error/error.frag.js')
const SHADERS_CHUNKS = require('./shaders/chunks')
const LOADERS = new Map().set(['.gltf', '.glb'], loadGltf)
const LOADERS_ENTRIES = Array.from(LOADERS.entries())
var State = {
frame: 0,
shadowQuality: 2,
debug: false,
profile: false,
profiler: null,
paused: false,
rgbm: false
}
function isNil(x) {
return x == null
}
// TODO remove, should be in AABB
function aabbToPoints(bbox) {
if (aabb.isEmpty(bbox)) return []
return [
[bbox[0][0], bbox[0][1], bbox[0][2], 1],
[bbox[1][0], bbox[0][1], bbox[0][2], 1],
[bbox[1][0], bbox[0][1], bbox[1][2], 1],
[bbox[0][0], bbox[0][1], bbox[1][2], 1],
[bbox[0][0], bbox[1][1], bbox[0][2], 1],
[bbox[1][0], bbox[1][1], bbox[0][2], 1],
[bbox[1][0], bbox[1][1], bbox[1][2], 1],
[bbox[0][0], bbox[1][1], bbox[1][2], 1]
]
}
// opts = Context
// opts = { ctx: Context, width: Number, height: Number, profile: Boolean }
function Renderer(opts) {
this.entities = []
this.root = this.entity()
// check if we passed gl context or options object
opts = opts.texture2D ? { ctx: opts } : opts
const ctx = (this._ctx = opts.ctx)
const gl = opts.ctx.gl
gl.getExtension('OES_standard_derivatives')
this._dummyTexture2D = ctx.texture2D({ width: 4, height: 4 })
this._dummyTextureCube = ctx.textureCube({ width: 4, height: 4 })
this._defaultMaterial = createMaterial({
ctx: ctx,
unlit: true,
baseColor: [1, 0, 0, 1]
})
this._debug = false
this._programCacheMap = {
values: [],
getValue: function(flags, vert, frag) {
for (var i = 0; i < this.values.length; i++) {
var v = this.values[i]
if (v.frag === frag && v.vert === vert) {
if (v.flags.length === flags.length) {
var found = true
for (var j = 0; j < flags.length; j++) {
if (v.flags[j] !== flags[j]) {
found = false
break
}
}
if (found) {
return v.program
}
}
}
}
return false
},
setValue: function(flags, vert, frag, program) {
this.values.push({ flags, vert, frag, program })
}
}
if (opts.profile) {
State.profiler = createProfiler(opts.ctx, this)
State.profiler.flush = opts.profileFlush
}
if (opts.pauseOnBlur && isBrowser) {
window.addEventListener('focus', () => {
State.paused = false
})
window.addEventListener('blur', () => {
State.paused = true
})
}
// TODO: move from State object to internal probs and renderer({ opts }) setter?
Object.assign(State, opts)
this._state = State
this.shaders = {
chunks: SHADERS_CHUNKS,
pipeline: {
depthPrePass: {
vert: DEPTH_PASS_VERT,
frag: DEPTH_PRE_PASS_FRAG
},
depthPass: {
vert: DEPTH_PASS_VERT,
frag: DEPTH_PASS_FRAG
},
material: {
vert: PBR_VERT,
frag: PBR_FRAG
}
}
}
this.helperPositionVBuffer = ctx.vertexBuffer({ data: [0, 0, 0] })
this.helperColorVBuffer = ctx.vertexBuffer({ data: [0, 0, 0, 0] })
this.drawHelperLinesCmd = {
pipeline: ctx.pipeline({
vert: `
${HELPER_VERT}
`,
frag: `
${HELPER_FRAG}
`,
depthTest: true,
primitive: ctx.Primitive.Lines
}),
attributes: {
aPosition: this.helperPositionVBuffer,
aVertexColor: this.helperColorVBuffer
},
count: 1
}
this.drawHelperLinesPostProcCmd = {
pipeline: ctx.pipeline({
vert: `
${HELPER_VERT}
`,
frag: `
${ctx.capabilities.maxColorAttachments > 1 ? '#define USE_DRAW_BUFFERS' : '' }
${HELPER_FRAG}
`,
depthTest: true,
primitive: ctx.Primitive.Lines
}),
attributes: {
aPosition: this.helperPositionVBuffer,
aVertexColor: this.helperColorVBuffer
},
count: 1
}
}
Renderer.prototype.updateDirectionalLightShadowMap = function(
light,
geometries
) {
const ctx = this._ctx
const position = light.entity.transform.worldPosition
const target = [0, 0, 1, 0]
const up = [0, 1, 0, 0]
vec4.multMat4(target, light.entity.transform.modelMatrix)
vec3.add(target, position)
vec4.multMat4(up, light.entity.transform.modelMatrix)
mat4.lookAt(light._viewMatrix, position, target, up)
const shadowBboxPoints = geometries.reduce((points, geometry) => {
return points.concat(aabbToPoints(geometry.entity.transform.worldBounds))
}, [])
// TODO: gc vec3.copy, all the bounding box creation
const bboxPointsInLightSpace = shadowBboxPoints.map((p) =>
vec3.multMat4(vec3.copy(p), light._viewMatrix)
)
const sceneBboxInLightSpace = aabb.fromPoints(bboxPointsInLightSpace)
const lightNear = -sceneBboxInLightSpace[1][2]
const lightFar = -sceneBboxInLightSpace[0][2]
light.set({
_near: lightNear,
_far: lightFar
})
mat4.ortho(
light._projectionMatrix,
sceneBboxInLightSpace[0][0],
sceneBboxInLightSpace[1][0],
sceneBboxInLightSpace[0][1],
sceneBboxInLightSpace[1][1],
lightNear,
lightFar
)
ctx.submit(light._shadowMapDrawCommand, () => {
this.drawMeshes(null, true, light, geometries)
})
}
Renderer.prototype.updateSpotLightShadowMap = function(light, geometries) {
const position = light.entity.transform.worldPosition
const target = [0, 0, 1, 0]
const up = [0, 1, 0, 0]
vec4.multMat4(target, light.entity.transform.modelMatrix)
// vec3.add(target, position)
vec4.multMat4(up, light.entity.transform.modelMatrix)
mat4.lookAt(light._viewMatrix, position, target, up)
const shadowBboxPoints = geometries.reduce((points, geometry) => {
return points.concat(aabbToPoints(geometry.entity.transform.worldBounds))
}, [])
// TODO: gc vec3.copy, all the bounding box creation
const bboxPointsInLightSpace = shadowBboxPoints.map((p) =>
vec3.multMat4(vec3.copy(p), light._viewMatrix)
)
const sceneBboxInLightSpace = aabb.fromPoints(bboxPointsInLightSpace)
const lightNear = -sceneBboxInLightSpace[1][2]
const lightFar = -sceneBboxInLightSpace[0][2]
light.set({
_near: lightNear,
_far: lightFar
})
mat4.perspective(
light._projectionMatrix,
2 * light.angle,
light._shadowMap.width / light._shadowMap.height,
lightNear,
lightFar
)
const ctx = this._ctx
ctx.submit(light._shadowMapDrawCommand, () => {
this.drawMeshes(null, true, light, geometries)
})
}
Renderer.prototype.updatePointLightShadowMap = function(light, geometries) {
const ctx = this._ctx
light._sides.forEach((side) => {
var target = [0, 0, 0]
ctx.submit(side.drawPassCmd, () => {
const position = light.entity.transform.worldPosition
vec3.set(target, position)
vec3.add(target, side.target)
mat4.lookAt(side.viewMatrix, position, target, side.up)
var sideLight = {
_projectionMatrix: side.projectionMatrix,
_viewMatrix: side.viewMatrix
}
this.drawMeshes(null, true, sideLight, geometries)
})
})
}
Renderer.prototype.parseShader = function(string, options) {
// Unroll loop
const unrollLoopPattern = /#pragma unroll_loop[\s]+?for \(int i = (\d+); i < (\d+|\D+); i\+\+\) \{([\s\S]+?)(?=\})\}/g
string = string.replace(unrollLoopPattern, function(
match,
start,
end,
snippet
) {
let unroll = ''
// Replace lights number
end = end
.replace(/NUM_AMBIENT_LIGHTS/g, options.numAmbientLights || 0)
.replace(/NUM_DIRECTIONAL_LIGHTS/g, options.numDirectionalLights || 0)
.replace(/NUM_POINT_LIGHTS/g, options.numPointLights || 0)
.replace(/NUM_SPOT_LIGHTS/g, options.numSpotLights || 0)
.replace(/NUM_AREA_LIGHTS/g, options.numAreaLights || 0)
for (let i = Number.parseInt(start); i < Number.parseInt(end); i++) {
unroll += snippet.replace(/\[i\]/g, `[${i}]`)
}
return unroll
})
return string
}
Renderer.prototype.getMaterialProgramAndFlags = function(
geometry,
material,
skin,
options
) {
var ctx = this._ctx
var flags = []
if (!geometry._attributes.aNormal) {
flags.push('#define USE_UNLIT_WORKFLOW')
} else {
flags.push('#define USE_NORMALS')
}
if (geometry._attributes.aTangent) {
flags.push('#define USE_TANGENTS')
}
if (geometry._attributes.aTexCoord0) {
flags.push('#define USE_TEXCOORD_0')
}
if (geometry._attributes.aTexCoord1) {
flags.push('#define USE_TEXCOORD_1')
}
if (geometry._attributes.aOffset) {
flags.push('#define USE_INSTANCED_OFFSET')
}
if (geometry._attributes.aScale) {
flags.push('#define USE_INSTANCED_SCALE')
}
if (geometry._attributes.aRotation) {
flags.push('#define USE_INSTANCED_ROTATION')
}
if (geometry._attributes.aColor) {
flags.push('#define USE_INSTANCED_COLOR')
}
if (geometry._attributes.aVertexColor) {
flags.push('#define USE_VERTEX_COLORS')
}
if (options.useSSAO) {
flags.push('#define USE_AO')
}
if (material.displacementMap) {
flags.push('#define USE_DISPLACEMENT_MAP')
}
if (skin) {
flags.push('#define USE_SKIN')
flags.push('#define NUM_JOINTS ' + skin.joints.length)
}
if (ctx.capabilities.maxColorAttachments > 1) {
flags.push('#define USE_DRAW_BUFFERS')
}
if (material.baseColorMap) {
flags.push('#define USE_BASE_COLOR_MAP')
if (!material.baseColor) {
material.baseColor = [1, 1, 1, 1]
}
flags.push(
`#define BASE_COLOR_MAP_TEX_COORD_INDEX ${material.baseColorMap
.texCoord || 0}`
)
if (material.baseColorMap.texCoordTransformMatrix) {
flags.push('#define USE_BASE_COLOR_MAP_TEX_COORD_TRANSFORM')
}
}
if (material.alphaMap) {
flags.push('#define USE_ALPHA_MAP')
flags.push(
`#define ALPHA_MAP_TEX_COORD_INDEX ${material.alphaMap.texCoord || 0}`
)
if (material.alphaMap.texCoordTransformMatrix) {
flags.push('#define USE_ALPHA_MAP_TEX_COORD_TRANSFORM')
}
}
if (material.alphaTest) {
flags.push('#define USE_ALPHA_TEST')
}
if (options.depthPrePassOnly) {
flags.push('#define DEPTH_PRE_PASS_ONLY')
flags.push('#define SHADOW_QUALITY ' + 0)
flags.push('#define NUM_AMBIENT_LIGHTS ' + 0)
flags.push('#define NUM_DIRECTIONAL_LIGHTS ' + 0)
flags.push('#define NUM_POINT_LIGHTS ' + 0)
flags.push('#define NUM_SPOT_LIGHTS ' + 0)
flags.push('#define NUM_AREA_LIGHTS ' + 0)
return {
flags: flags,
vert: material.vert || DEPTH_PASS_VERT,
frag: material.frag || DEPTH_PRE_PASS_FRAG
}
}
if (options.depthPassOnly) {
flags.push('#define DEPTH_PASS_ONLY')
flags.push('#define SHADOW_QUALITY ' + 0)
flags.push('#define NUM_AMBIENT_LIGHTS ' + 0)
flags.push('#define NUM_DIRECTIONAL_LIGHTS ' + 0)
flags.push('#define NUM_POINT_LIGHTS ' + 0)
flags.push('#define NUM_SPOT_LIGHTS ' + 0)
flags.push('#define NUM_AREA_LIGHTS ' + 0)
return {
flags: flags,
vert: material.vert || DEPTH_PASS_VERT,
frag: material.frag || DEPTH_PASS_FRAG
}
}
flags.push(
'#define SHADOW_QUALITY ' +
(material.receiveShadows ? State.shadowQuality : 0)
)
if (material.unlit) {
if (flags.indexOf('#define USE_UNLIT_WORKFLOW') === -1) {
flags.push('#define USE_UNLIT_WORKFLOW')
}
} else if (material.useSpecularGlossinessWorkflow) {
flags.push('#define USE_SPECULAR_GLOSSINESS_WORKFLOW')
if (material.diffuseMap) {
flags.push('#define USE_DIFFUSE_MAP')
flags.push(
`#define DIFFUSE_MAP_TEX_COORD_INDEX ${material.diffuseMap.texCoord ||
0}`
)
if (material.diffuseMap.texCoordTransformMatrix) {
flags.push('#define USE_DIFFUSE_MAP_TEX_COORD_TRANSFORM')
}
}
if (material.specularGlossinessMap) {
flags.push('#define USE_SPECULAR_GLOSSINESS_MAP')
flags.push(
`#define SPECULAR_GLOSSINESS_MAP_TEX_COORD_INDEX ${material
.specularGlossinessMap.texCoord || 0}`
)
if (material.specularGlossinessMap.texCoordTransformMatrix) {
flags.push('#define USE_SPECULAR_GLOSSINESS_MAP_TEX_COORD_TRANSFORM')
}
}
} else {
flags.push('#define USE_METALLIC_ROUGHNESS_WORKFLOW')
if (material.metallicMap) {
flags.push('#define USE_METALLIC_MAP')
flags.push(
`#define METALLIC_MAP_TEX_COORD_INDEX ${material.metallicMap.texCoord ||
0}`
)
if (material.metallicMap.texCoordTransformMatrix) {
flags.push('#define USE_METALLIC_MAP_TEX_COORD_TRANSFORM')
}
}
if (material.roughnessMap) {
flags.push('#define USE_ROUGHNESS_MAP')
flags.push(
`#define ROUGHNESS_MAP_TEX_COORD_INDEX ${material.roughnessMap
.texCoord || 0}`
)
if (material.roughnessMap.texCoordTransformMatrix) {
flags.push('#define USE_ROUGHNESS_MAP_TEX_COORD_TRANSFORM')
}
}
if (material.metallicRoughnessMap) {
flags.push('#define USE_METALLIC_ROUGHNESS_MAP')
flags.push(
`#define METALLIC_ROUGHNESS_MAP_TEX_COORD_INDEX ${material
.metallicRoughnessMap.texCoord || 0}`
)
if (material.metallicRoughnessMap.texCoordTransformMatrix) {
flags.push('#define USE_METALLIC_ROUGHNESS_MAP_TEX_COORD_TRANSFORM')
}
}
}
if (material.occlusionMap) {
flags.push('#define USE_OCCLUSION_MAP')
flags.push(
`#define OCCLUSION_MAP_TEX_COORD_INDEX ${material.occlusionMap.texCoord ||
0}`
)
if (material.occlusionMap.texCoordTransformMatrix) {
flags.push('#define USE_OCCLUSION_MAP_TEX_COORD_TRANSFORM')
}
}
if (material.normalMap) {
flags.push('#define USE_NORMAL_MAP')
flags.push(
`#define NORMAL_MAP_TEX_COORD_INDEX ${material.normalMap.texCoord || 0}`
)
if (material.normalMap.texCoordTransformMatrix) {
flags.push('#define USE_NORMAL_MAP_TEX_COORD_TRANSFORM')
}
}
if (material.emissiveColorMap) {
flags.push('#define USE_EMISSIVE_COLOR_MAP')
flags.push(
`#define EMISSIVE_COLOR_MAP_TEX_COORD_INDEX ${material.emissiveColorMap
.texCoord || 0}`
)
if (material.emissiveColorMap.texCoordTransformMatrix) {
flags.push('#define USE_EMISSIVE_COLOR_MAP_TEX_COORD_TRANSFORM')
}
}
if (!isNil(material.emissiveColor)) {
flags.push('#define USE_EMISSIVE_COLOR')
}
if (!isNil(material.clearCoat)) {
flags.push('#define USE_CLEAR_COAT')
}
if (material.clearCoatNormalMap) {
flags.push('#define USE_CLEAR_COAT_NORMAL_MAP')
flags.push(
`#define CLEAR_COAT_NORMAL_MAP_TEX_COORD_INDEX ${material
.clearCoatNormalMap.texCoord || 0}`
)
if (material.clearCoatNormalMap.texCoordTransformMatrix) {
flags.push('#define USE_CLEAR_COAT_NORMAL_MAP_TEX_COORD_TRANSFORM')
}
}
if (material.blend) {
flags.push('#define USE_BLEND')
}
flags.push('#define NUM_AMBIENT_LIGHTS ' + (options.numAmbientLights || 0))
flags.push(
'#define NUM_DIRECTIONAL_LIGHTS ' + (options.numDirectionalLights || 0)
)
flags.push('#define NUM_POINT_LIGHTS ' + (options.numPointLights || 0))
flags.push('#define NUM_SPOT_LIGHTS ' + (options.numSpotLights || 0))
flags.push('#define NUM_AREA_LIGHTS ' + (options.numAreaLights || 0))
if (options.useReflectionProbes) {
flags.push('#define USE_REFLECTION_PROBES')
}
if (options.useTonemapping) {
flags.push('#define USE_TONEMAPPING')
}
return {
flags: flags,
vert: material.vert || PBR_VERT,
frag: material.frag || PBR_FRAG
}
}
Renderer.prototype.buildProgram = function(vertSrc, fragSrc) {
var ctx = this._ctx
let program = null
try {
program = ctx.program({ vert: vertSrc, frag: fragSrc })
} catch (e) {
console.error('pex-renderer glsl error', e)
program = ctx.program({ vert: ERROR_VERT, frag: ERROR_FRAG })
throw e
}
return program
}
Renderer.prototype.getMaterialProgram = function(
geometry,
material,
skin,
options
) {
var { flags, vert, frag } = this.getMaterialProgramAndFlags(
geometry,
material,
skin,
options
)
var flagsStr = flags.join('\n') + '\n'
var vertSrc = flagsStr + vert
var fragSrc = flagsStr + frag
var program = this._programCacheMap.getValue(flags, vert, frag)
if (!program) {
program = this.buildProgram(
this.parseShader(vertSrc, options),
this.parseShader(fragSrc, options)
)
this._programCacheMap.setValue(flags, vert, frag, program)
}
return program
}
Renderer.prototype.traverseTransformTree = function(
transform,
beforeCallback,
afterCallback
) {
if (!transform.enabled) return
beforeCallback(transform)
transform.children.forEach((child) => {
this.traverseTransformTree(child, beforeCallback, afterCallback)
})
if (afterCallback) afterCallback(transform)
}
Renderer.prototype.update = function() {
this.entities = []
this.traverseTransformTree(
this.root.transform,
(transform) => {
this.entities.push(transform.entity)
transform.entity.components.forEach((component) => {
if (component.update) component.update()
})
},
(transform) => {
transform.entity.components.forEach((component) => {
if (component.afterUpdate) component.afterUpdate()
})
}
)
}
Renderer.prototype.getGeometryPipeline = function(
geometry,
material,
skin,
opts
) {
const ctx = this._ctx
const program = this.getMaterialProgram(geometry, material, skin, opts)
if (!this._pipelineCache) {
this._pipelineCache = {}
}
// TODO: better pipeline caching
const hash = material.id + '_' + program.id + '_' + geometry.primitive
let pipeline = this._pipelineCache[hash]
if (!pipeline || material.needsPipelineUpdate) {
material.needsPipelineUpdate = false
pipeline = ctx.pipeline({
program: program,
depthTest: material.depthTest,
depthWrite: material.depthWrite,
depthFunc: material.depthFunc,
blend: material.blend,
blendSrcRGBFactor: material.blendSrcRGBFactor,
blendSrcAlphaFactor: material.blendSrcAlphaFactor,
blendDstRGBFactor: material.blendDstRGBFactor,
blendDstAlphaFactor: material.blendDstAlphaFactor,
cullFace: material.cullFace,
cullFaceMode: material.cullFaceMode,
primitive: geometry.primitive
})
this._pipelineCache[hash] = pipeline
}
return pipeline
}
Renderer.prototype.getOverlayCommand = function() {
const ctx = this._ctx
if (!this._drawOverlayCmd) {
const program = ctx.program({
vert: OVERLAY_VERT,
frag: OVERLAY_FRAG
})
this._drawOverlayCmd = {
name: 'DrawOverlayCmd',
attributes: {
aPosition: ctx.vertexBuffer([[-1, -1], [1, -1], [1, 1], [-1, 1]]),
aTexCoord0: ctx.vertexBuffer([[0, 0], [1, 0], [1, 1], [0, 1]])
},
indices: ctx.indexBuffer([[0, 1, 2], [0, 2, 3]]),
pipeline: ctx.pipeline({
program: program,
depthTest: false,
depthWrite: false,
blend: true,
blendSrcRGBFactor: ctx.BlendFactor.One,
blendDstRGBFactor: ctx.BlendFactor.OneMinusSrcAlpha,
blendSrcAlphaFactor: ctx.BlendFactor.One,
blendDstAlphaFactor: ctx.BlendFactor.OneMinusSrcAlpha,
cullFace: true,
cullFaceMode: ctx.Face.Back,
primitive: ctx.Primitive.Triangles
})
}
}
return this._drawOverlayCmd
}
Renderer.prototype.getComponents = function(type) {
const result = []
for (let i = 0; i < this.entities.length; i++) {
const entity = this.entities[i]
const component = entity.getComponent(type)
if (component) {
result.push(component)
}
}
return result
}
// sort meshes by material
// do material search by props not string concat
// set global uniforms like lights once
// set update transforms once per frame
// draw + shadowmap @ 1000 objects x 30 uniforms = 60'000 setters / frame!!
// transform feedback?
Renderer.prototype.drawMeshes = function(
camera,
shadowMapping,
shadowMappingLight,
geometries,
skybox,
forward
) {
const ctx = this._ctx
function byEnabledAndCameraTags(component) {
if (!component.enabled) return false
if (!camera || !camera.entity) return true
if (!camera.entity.tags.length) return true
if (!component.entity.tags.length) return true
return component.entity.tags[0] === camera.entity.tags[0]
}
geometries =
geometries || this.getComponents('Geometry').filter(byEnabledAndCameraTags)
const ambientLights = this.getComponents('AmbientLight').filter(
byEnabledAndCameraTags
)
const directionalLights = this.getComponents('DirectionalLight').filter(
byEnabledAndCameraTags
)
const pointLights = this.getComponents('PointLight').filter(
byEnabledAndCameraTags
)
const spotLights = this.getComponents('SpotLight').filter(
byEnabledAndCameraTags
)
const areaLights = this.getComponents('AreaLight').filter(
byEnabledAndCameraTags
)
const reflectionProbes = this.getComponents('ReflectionProbe').filter(
byEnabledAndCameraTags
)
if (!shadowMapping && !shadowMappingLight) {
directionalLights.forEach((light) => {
if (light.castShadows) {
const shadowCasters = geometries.filter((geometry) => {
const material = geometry.entity.getComponent('Material')
return material && material.castShadows
})
this.updateDirectionalLightShadowMap(light, shadowCasters)
}
})
pointLights.forEach((light) => {
if (light.castShadows) {
const shadowCasters = geometries.filter((geometry) => {
const material = geometry.entity.getComponent('Material')
return material && material.castShadows
})
this.updatePointLightShadowMap(light, shadowCasters)
}
})
spotLights.forEach((light) => {
if (light.castShadows) {
const shadowCasters = geometries.filter((geometry) => {
const material = geometry.entity.getComponent('Material')
return material && material.castShadows
})
this.updateSpotLightShadowMap(light, shadowCasters)
}
})
}
var sharedUniforms = (this._sharedUniforms = this._sharedUniforms || {})
sharedUniforms.uOutputEncoding = State.rgbm
? ctx.Encoding.RGBM
: ctx.Encoding.Linear // TODO: State.postprocess
if (forward) {
sharedUniforms.uOutputEncoding = ctx.Encoding.Gamma
}
// TODO: find nearest reflection probe
if (reflectionProbes.length > 0) {
sharedUniforms.uReflectionMap = reflectionProbes[0]._reflectionMap
sharedUniforms.uReflectionMapEncoding =
reflectionProbes[0]._reflectionMap.encoding
}
if (shadowMappingLight) {
sharedUniforms.uProjectionMatrix = shadowMappingLight._projectionMatrix
sharedUniforms.uViewMatrix = shadowMappingLight._viewMatrix
} else {
sharedUniforms.uCameraPosition = camera.entity.transform.worldPosition
sharedUniforms.uProjectionMatrix = camera.projectionMatrix
sharedUniforms.uViewMatrix = camera.viewMatrix
sharedUniforms.uInverseViewMatrix = camera.inverseViewMatrix
}
if (camera) {
const postProcessingCmp = camera.entity.getComponent('PostProcessing')
if (postProcessingCmp && postProcessingCmp.ssao) {
sharedUniforms.uAO = postProcessingCmp._frameAOTex
sharedUniforms.uScreenSize = [camera.viewport[2], camera.viewport[3]] // TODO: should this be camera viewport size?
}
if (!(postProcessingCmp && postProcessingCmp.enabled)) {
sharedUniforms.uExposure = camera.exposure
}
}
ambientLights.forEach((light, i) => {
sharedUniforms['uAmbientLights[' + i + '].color'] = light.color
})
directionalLights.forEach((light, i) => {
const dir4 = [0, 0, 1, 0] // TODO: GC
const dir = [0, 0, 0]
vec4.multMat4(dir4, light.entity.transform.modelMatrix)
vec3.set(dir, dir4)
sharedUniforms['uDirectionalLights[' + i + '].direction'] = dir
sharedUniforms['uDirectionalLights[' + i + '].color'] = light.color
sharedUniforms['uDirectionalLights[' + i + '].castShadows'] =
light.castShadows
sharedUniforms['uDirectionalLights[' + i + '].projectionMatrix'] =
light._projectionMatrix
sharedUniforms['uDirectionalLights[' + i + '].viewMatrix'] =
light._viewMatrix
sharedUniforms['uDirectionalLights[' + i + '].near'] = light._near
sharedUniforms['uDirectionalLights[' + i + '].far'] = light._far
sharedUniforms['uDirectionalLights[' + i + '].bias'] = light.bias
sharedUniforms[
'uDirectionalLights[' + i + '].shadowMapSize'
] = light.castShadows
? [light._shadowMap.width, light._shadowMap.height]
: [0, 0]
sharedUniforms['uDirectionalLightShadowMaps[' + i + ']'] = light.castShadows
? light._shadowMap
: this._dummyTexture2D
})
pointLights.forEach((light, i) => {
sharedUniforms['uPointLights[' + i + '].position'] =
light.entity.transform.worldPosition
sharedUniforms['uPointLights[' + i + '].color'] = light.color
sharedUniforms['uPointLights[' + i + '].range'] = light.range
sharedUniforms['uPointLights[' + i + '].castShadows'] = light.castShadows
sharedUniforms['uPointLightShadowMaps[' + i + ']'] = light.castShadows
? light._shadowCubemap
: this._dummyTextureCube
})
spotLights.forEach((light, i) => {
const dir4 = [0, 0, 1, 0] // TODO: GC
const dir = [0, 0, 0]
vec4.multMat4(dir4, light.entity.transform.modelMatrix)
vec3.set(dir, dir4)
sharedUniforms['uSpotLights[' + i + '].position'] =
light.entity.transform.position
sharedUniforms['uSpotLights[' + i + '].direction'] = dir
sharedUniforms['uSpotLights[' + i + '].color'] = light.color
sharedUniforms['uSpotLights[' + i + '].angle'] = light.angle
sharedUniforms['uSpotLights[' + i + '].innerAngle'] = light.innerAngle
sharedUniforms['uSpotLights[' + i + '].range'] = light.range
sharedUniforms['uSpotLights[' + i + '].castShadows'] = light.castShadows
sharedUniforms['uSpotLights[' + i + '].projectionMatrix'] =
light._projectionMatrix
sharedUniforms['uSpotLights[' + i + '].viewMatrix'] = light._viewMatrix
sharedUniforms['uSpotLights[' + i + '].near'] = light._near
sharedUniforms['uSpotLights[' + i + '].far'] = light._far
sharedUniforms['uSpotLights[' + i + '].bias'] = light.bias
sharedUniforms['uSpotLights[' + i + '].shadowMapSize'] = light.castShadows
? [light._shadowMap.width, light._shadowMap.height]
: [0, 0]
sharedUniforms['uSpotLightShadowMaps[' + i + ']'] = light.castShadows
? light._shadowMap
: this._dummyTexture2D
})
areaLights.forEach((light, i) => {
sharedUniforms.ltc_mat = light.ltc_mat_texture
sharedUniforms.ltc_mag = light.ltc_mag_texture
sharedUniforms['uAreaLights[' + i + '].position'] =
light.entity.transform.position
sharedUniforms['uAreaLights[' + i + '].color'] = light.color
sharedUniforms['uAreaLights[' + i + '].intensity'] = light.intensity // FIXME: why area light has intensity and other lights don't?
sharedUniforms['uAreaLights[' + i + '].rotation'] =
light.entity.transform.rotation
sharedUniforms['uAreaLights[' + i + '].size'] = [
light.entity.transform.scale[0] / 2,
light.entity.transform.scale[1] / 2
]
})
geometries.sort((a, b) => {
var matA = a.entity.getComponent('Material') || this._defaultMaterial
var matB = b.entity.getComponent('Material') || this._defaultMaterial
var transparentA = matA.blend ? 1 : 0
var transparentB = matB.blend ? 1 : 0
return transparentA - transparentB
})
var firstTransparent = geometries.findIndex(
(g) => (g.entity.getComponent('Material') || this._defaultMaterial).blend
)
for (let i = 0; i < geometries.length; i++) {
// also drawn below if transparent objects don't exist
if (firstTransparent === i && skybox && skybox.enabled) {
skybox.draw(camera, {
outputEncoding: sharedUniforms.uOutputEncoding,
backgroundMode: true
})
}
const geometry = geometries[i]
const transform = geometry.entity.transform
if (!transform.enabled) {
continue
}
// don't draw uninitialized geometries
if (!geometry._attributes.aPosition) {
continue
}
const material = geometry.entity.getComponent('Material') || this._defaultMaterial
if (!material.enabled || (material.blend && shadowMapping)) {
continue
}
const skin = geometry.entity.getComponent('Skin')
const cachedUniforms = material._uniforms
if (material.baseColorMap) {
cachedUniforms.uBaseColorMap =
material.baseColorMap.texture || material.baseColorMap
if (material.baseColorMap.texCoordTransformMatrix) {
cachedUniforms.uBaseColorMapTexCoordTransform =
material.baseColorMap.texCoordTransformMatrix
}
}
cachedUniforms.uBaseColor = material.baseColor
if (material.emissiveColorMap) {
cachedUniforms.uEmissiveColorMap =
material.emissiveColorMap.texture || material.emissiveColorMap
if (material.emissiveColorMap.texCoordTransformMatrix) {
cachedUniforms.uEmissiveColorMapTexCoordTransform =
material.emissiveColorMap.texCoordTransformMatrix
}
}
if (!isNil(material.emissiveColor)) {
cachedUniforms.uEmissiveColor = material.emissiveColor
cachedUniforms.uEmissiveIntensity = material.emissiveIntensity
}
if (material.useSpecularGlossinessWorkflow) {
if (material.diffuse) cachedUniforms.uDiffuse = material.diffuse
if (material.specular) cachedUniforms.uSpecular = material.specular
if (!isNil(material.glossiness))
cachedUniforms.uGlossiness = material.glossiness
if (material.diffuseMap) {