playcanvas
Version:
Open-source WebGL/WebGPU 3D engine for the web
772 lines (771 loc) • 26.6 kB
JavaScript
import { now } from "../../core/time.js";
import { Color } from "../../core/math/color.js";
import { math } from "../../core/math/math.js";
import { Vec3 } from "../../core/math/vec3.js";
import { BoundingBox } from "../../core/shape/bounding-box.js";
import {
ADDRESS_CLAMP_TO_EDGE,
CULLFACE_NONE,
FILTER_LINEAR,
FILTER_NEAREST,
PIXELFORMAT_RGBA8,
TEXHINT_LIGHTMAP,
TEXTURETYPE_DEFAULT,
TEXTURETYPE_RGBM
} from "../../platform/graphics/constants.js";
import { RenderTarget } from "../../platform/graphics/render-target.js";
import { drawQuadWithShader } from "../../scene/graphics/quad-render-utils.js";
import { Texture } from "../../platform/graphics/texture.js";
import {
BAKE_COLORDIR,
GAMMA_NONE,
TONEMAP_LINEAR,
LIGHTTYPE_DIRECTIONAL,
LIGHTTYPE_OMNI,
LIGHTTYPE_SPOT,
PROJECTION_ORTHOGRAPHIC,
PROJECTION_PERSPECTIVE,
SHADERDEF_DIRLM,
SHADERDEF_LM,
SHADERDEF_LMAMBIENT,
MASK_BAKE,
MASK_AFFECT_LIGHTMAPPED,
MASK_AFFECT_DYNAMIC,
SHADOWUPDATE_REALTIME,
SHADOWUPDATE_THISFRAME
} from "../../scene/constants.js";
import { MeshInstance } from "../../scene/mesh-instance.js";
import { LightingParams } from "../../scene/lighting/lighting-params.js";
import { WorldClusters } from "../../scene/lighting/world-clusters.js";
import { Camera } from "../../scene/camera.js";
import { GraphNode } from "../../scene/graph-node.js";
import { StandardMaterial } from "../../scene/materials/standard-material.js";
import { BakeLightSimple } from "./bake-light-simple.js";
import { BakeLightAmbient } from "./bake-light-ambient.js";
import { BakeMeshNode } from "./bake-mesh-node.js";
import { LightmapCache } from "../../scene/graphics/lightmap-cache.js";
import { LightmapFilters } from "./lightmap-filters.js";
import { BlendState } from "../../platform/graphics/blend-state.js";
import { DepthState } from "../../platform/graphics/depth-state.js";
import { RenderPassLightmapper } from "./render-pass-lightmapper.js";
import { RenderPassShadowLocalClustered } from "../../scene/renderer/render-pass-shadow-local-clustered.js";
import { RenderPassShadowLocalNonClustered } from "../../scene/renderer/render-pass-shadow-local-non-clustered.js";
const MAX_LIGHTMAP_SIZE = 2048;
const PASS_COLOR = 0;
const PASS_DIR = 1;
const tempVec = new Vec3();
class Lightmapper {
constructor(device, root, scene, renderer, assets) {
this.device = device;
this.root = root;
this.scene = scene;
this.renderer = renderer;
this.assets = assets;
this.shadowMapCache = renderer.shadowMapCache;
this._tempSet = /* @__PURE__ */ new Set();
this._initCalled = false;
this.passMaterials = [];
this.ambientAOMaterial = null;
this.fog = "";
this.ambientLight = new Color();
this.renderTargets = /* @__PURE__ */ new Map();
this.stats = {
renderPasses: 0,
lightmapCount: 0,
totalRenderTime: 0,
forwardTime: 0,
fboTime: 0,
shadowMapTime: 0,
compileTime: 0,
shadersLinked: 0
};
}
destroy() {
LightmapCache.decRef(this.blackTex);
this.blackTex = null;
LightmapCache.destroy();
this.device = null;
this.root = null;
this.scene = null;
this.renderer = null;
this.assets = null;
this.camera?.destroy();
this.camera = null;
}
initBake(device) {
this.bakeHDR = this.scene.lightmapPixelFormat !== PIXELFORMAT_RGBA8;
if (!this._initCalled) {
this._initCalled = true;
this.lightmapFilters = new LightmapFilters(device);
this.constantBakeDir = device.scope.resolve("bakeDir");
this.materials = [];
this.blackTex = new Texture(this.device, {
width: 4,
height: 4,
format: PIXELFORMAT_RGBA8,
type: TEXTURETYPE_RGBM,
name: "lightmapBlack"
});
LightmapCache.incRef(this.blackTex);
const camera = new Camera(this.device);
camera.clearColor.set(0, 0, 0, 0);
camera.clearColorBuffer = true;
camera.clearDepthBuffer = false;
camera.clearStencilBuffer = false;
camera.frustumCulling = false;
camera.projection = PROJECTION_ORTHOGRAPHIC;
camera.aspectRatio = 1;
camera.node = new GraphNode();
this.camera = camera;
this.camera.shaderParams.gammaCorrection = GAMMA_NONE;
this.camera.shaderParams.toneMapping = TONEMAP_LINEAR;
}
if (this.scene.clusteredLightingEnabled) {
const lightingParams = new LightingParams(device.supportsAreaLights, device.maxTextureSize, () => {
});
this.lightingParams = lightingParams;
const srcParams = this.scene.lighting;
lightingParams.shadowsEnabled = srcParams.shadowsEnabled;
lightingParams.shadowAtlasResolution = srcParams.shadowAtlasResolution;
lightingParams.cookiesEnabled = srcParams.cookiesEnabled;
lightingParams.cookieAtlasResolution = srcParams.cookieAtlasResolution;
lightingParams.areaLightsEnabled = srcParams.areaLightsEnabled;
lightingParams.cells = new Vec3(3, 3, 3);
lightingParams.maxLightsPerCell = 4;
this.worldClusters = new WorldClusters(device);
this.worldClusters.name = "ClusterLightmapper";
this.shadowLocalClusteredPass = new RenderPassShadowLocalClustered(
device,
this.renderer.shadowRenderer,
this.renderer._shadowRendererLocal
);
}
}
finishBake(bakeNodes) {
this.materials = [];
function destroyRT(rt) {
LightmapCache.decRef(rt.colorBuffer);
rt.destroy();
}
this.renderTargets.forEach((rt) => {
destroyRT(rt);
});
this.renderTargets.clear();
bakeNodes.forEach((node) => {
node.renderTargets.forEach((rt) => {
destroyRT(rt);
});
node.renderTargets.length = 0;
});
this.ambientAOMaterial = null;
if (this.worldClusters) {
this.worldClusters.destroy();
this.worldClusters = null;
}
}
createMaterialForPass(scene, pass, addAmbient) {
const material = new StandardMaterial();
material.name = `lmMaterial-pass:${pass}-ambient:${addAmbient}`;
material.setDefine("UV1LAYOUT", "");
material.setDefine("LIT_LIGHTMAP_BAKING", "");
if (pass === PASS_COLOR) {
material.setDefine("LIT_LIGHTMAP_BAKING_COLOR", "");
if (addAmbient) {
material.setDefine("LIT_LIGHTMAP_BAKING_ADD_AMBIENT", "");
} else {
material.ambient = new Color(0, 0, 0);
}
if (!this.bakeHDR) material.setDefine("LIGHTMAP_RGBM", "");
material.lightMap = this.blackTex;
} else {
material.setDefine("LIT_LIGHTMAP_BAKING_DIR", "");
material.setDefine("STD_LIGHTMAP_DIR", "");
}
material.cull = CULLFACE_NONE;
material.forceUv1 = true;
material.update();
return material;
}
createMaterials(device, scene, passCount) {
for (let pass = 0; pass < passCount; pass++) {
if (!this.passMaterials[pass]) {
this.passMaterials[pass] = this.createMaterialForPass(scene, pass, false);
}
}
if (!this.ambientAOMaterial) {
this.ambientAOMaterial = this.createMaterialForPass(scene, 0, true);
this.ambientAOMaterial.onUpdateShader = function(options) {
options.litOptions.lightMapWithoutAmbient = true;
options.litOptions.separateAmbient = true;
return options;
};
}
}
createTexture(size, name) {
return new Texture(this.device, {
width: size,
height: size,
format: this.scene.lightmapPixelFormat,
mipmaps: false,
type: this.bakeHDR ? TEXTURETYPE_DEFAULT : TEXTURETYPE_RGBM,
minFilter: FILTER_NEAREST,
magFilter: FILTER_NEAREST,
addressU: ADDRESS_CLAMP_TO_EDGE,
addressV: ADDRESS_CLAMP_TO_EDGE,
name
});
}
// recursively walk the hierarchy of nodes starting at the specified node
// collect all nodes that need to be lightmapped to bakeNodes array
// collect all nodes with geometry to allNodes array
collectModels(node, bakeNodes, allNodes) {
if (!node.enabled) return;
let meshInstances;
if (node.model?.model && node.model?.enabled) {
if (allNodes) allNodes.push(new BakeMeshNode(node));
if (node.model.lightmapped) {
if (bakeNodes) {
meshInstances = node.model.model.meshInstances;
}
}
}
if (node.render?.enabled) {
if (allNodes) allNodes.push(new BakeMeshNode(node));
if (node.render.lightmapped) {
if (bakeNodes) {
meshInstances = node.render.meshInstances;
}
}
}
if (meshInstances) {
let hasUv1 = true;
for (let i = 0; i < meshInstances.length; i++) {
if (!meshInstances[i].mesh.vertexBuffer.format.hasUv1) {
hasUv1 = false;
break;
}
}
if (hasUv1) {
const notInstancedMeshInstances = [];
for (let i = 0; i < meshInstances.length; i++) {
const mesh = meshInstances[i].mesh;
if (this._tempSet.has(mesh)) {
bakeNodes.push(new BakeMeshNode(node, [meshInstances[i]]));
} else {
notInstancedMeshInstances.push(meshInstances[i]);
}
this._tempSet.add(mesh);
}
this._tempSet.clear();
if (notInstancedMeshInstances.length > 0) {
bakeNodes.push(new BakeMeshNode(node, notInstancedMeshInstances));
}
}
}
for (let i = 0; i < node._children.length; i++) {
this.collectModels(node._children[i], bakeNodes, allNodes);
}
}
// prepare all meshInstances that cast shadows into lightmaps
prepareShadowCasters(nodes) {
const casters = [];
for (let n = 0; n < nodes.length; n++) {
const component = nodes[n].component;
component.castShadows = component.castShadowsLightmap;
if (component.castShadowsLightmap) {
const meshes = nodes[n].meshInstances;
for (let i = 0; i < meshes.length; i++) {
meshes[i].visibleThisFrame = true;
casters.push(meshes[i]);
}
}
}
return casters;
}
// updates world transform for nodes
updateTransforms(nodes) {
for (let i = 0; i < nodes.length; i++) {
const meshInstances = nodes[i].meshInstances;
for (let j = 0; j < meshInstances.length; j++) {
meshInstances[j].node.getWorldTransform();
}
}
}
// Note: this function is also called by the Editor to display estimated LM size in the inspector,
// do not change its signature.
calculateLightmapSize(node) {
let data;
const sizeMult = this.scene.lightmapSizeMultiplier || 16;
const scale = tempVec;
let srcArea, lightmapSizeMultiplier;
if (node.model) {
lightmapSizeMultiplier = node.model.lightmapSizeMultiplier;
if (node.model.asset) {
data = this.assets.get(node.model.asset).data;
if (data.area) {
srcArea = data.area;
}
} else if (node.model._area) {
data = node.model;
if (data._area) {
srcArea = data._area;
}
}
} else if (node.render) {
lightmapSizeMultiplier = node.render.lightmapSizeMultiplier;
if (node.render.type !== "asset") {
if (node.render._area) {
data = node.render;
if (data._area) {
srcArea = data._area;
}
}
}
}
const area = { x: 1, y: 1, z: 1, uv: 1 };
if (srcArea) {
area.x = srcArea.x;
area.y = srcArea.y;
area.z = srcArea.z;
area.uv = srcArea.uv;
}
const areaMult = lightmapSizeMultiplier || 1;
area.x *= areaMult;
area.y *= areaMult;
area.z *= areaMult;
const component = node.render || node.model;
const bounds = this.computeNodeBounds(component.meshInstances);
scale.copy(bounds.halfExtents);
let totalArea = area.x * scale.y * scale.z + area.y * scale.x * scale.z + area.z * scale.x * scale.y;
totalArea /= area.uv;
totalArea = Math.sqrt(totalArea);
const lightmapSize = Math.min(math.nextPowerOfTwo(totalArea * sizeMult), this.scene.lightmapMaxResolution || MAX_LIGHTMAP_SIZE);
return lightmapSize;
}
setLightmapping(nodes, value, passCount, shaderDefs) {
for (let i = 0; i < nodes.length; i++) {
const node = nodes[i];
const meshInstances = node.meshInstances;
for (let j = 0; j < meshInstances.length; j++) {
const meshInstance = meshInstances[j];
meshInstance.setLightmapped(value);
if (value) {
if (shaderDefs) {
meshInstance._shaderDefs |= shaderDefs;
}
meshInstance.mask = MASK_AFFECT_LIGHTMAPPED;
for (let pass = 0; pass < passCount; pass++) {
const tex = node.renderTargets[pass].colorBuffer;
tex.minFilter = FILTER_LINEAR;
tex.magFilter = FILTER_LINEAR;
meshInstance.setRealtimeLightmap(MeshInstance.lightmapParamNames[pass], tex);
}
}
}
}
}
bake(nodes, mode = BAKE_COLORDIR) {
const device = this.device;
const startTime = now();
this.scene._updateSkyMesh();
this.stats.renderPasses = 0;
this.stats.shadowMapTime = 0;
this.stats.forwardTime = 0;
const startShaders = device._shaderStats.linked;
const startFboTime = device._renderTargetCreationTime;
const startCompileTime = device._shaderStats.compileTime;
const bakeNodes = [];
const allNodes = [];
if (nodes) {
for (let i = 0; i < nodes.length; i++) {
this.collectModels(nodes[i], bakeNodes, null);
}
this.collectModels(this.root, null, allNodes);
} else {
this.collectModels(this.root, bakeNodes, allNodes);
}
if (bakeNodes.length > 0) {
this.renderer.shadowRenderer.frameUpdate();
const passCount = mode === BAKE_COLORDIR ? 2 : 1;
this.setLightmapping(bakeNodes, false, passCount);
this.initBake(device);
this.bakeInternal(passCount, bakeNodes, allNodes);
let shaderDefs = SHADERDEF_LM;
if (mode === BAKE_COLORDIR) {
shaderDefs |= SHADERDEF_DIRLM;
}
if (this.scene.ambientBake) {
shaderDefs |= SHADERDEF_LMAMBIENT;
}
this.setLightmapping(bakeNodes, true, passCount, shaderDefs);
this.finishBake(bakeNodes);
}
const nowTime = now();
this.stats.totalRenderTime = nowTime - startTime;
this.stats.shadersLinked = device._shaderStats.linked - startShaders;
this.stats.compileTime = device._shaderStats.compileTime - startCompileTime;
this.stats.fboTime = device._renderTargetCreationTime - startFboTime;
this.stats.lightmapCount = bakeNodes.length;
}
// this allocates lightmap textures and render targets.
allocateTextures(bakeNodes, passCount) {
for (let i = 0; i < bakeNodes.length; i++) {
const bakeNode = bakeNodes[i];
const size = this.calculateLightmapSize(bakeNode.node);
for (let pass = 0; pass < passCount; pass++) {
const tex = this.createTexture(size, `lightmapper_lightmap_${i}`);
LightmapCache.incRef(tex);
bakeNode.renderTargets[pass] = new RenderTarget({
colorBuffer: tex,
depth: false
});
}
if (!this.renderTargets.has(size)) {
const tex = this.createTexture(size, `lightmapper_temp_lightmap_${size}`);
LightmapCache.incRef(tex);
this.renderTargets.set(size, new RenderTarget({
colorBuffer: tex,
depth: false
}));
}
}
}
prepareLightsToBake(allLights, bakeLights) {
if (this.scene.ambientBake) {
const ambientLight = new BakeLightAmbient(this);
bakeLights.push(ambientLight);
}
const sceneLights = this.renderer.lights;
for (let i = 0; i < sceneLights.length; i++) {
const light = sceneLights[i];
const bakeLight = new BakeLightSimple(this, light);
allLights.push(bakeLight);
if (light.enabled && (light.mask & MASK_BAKE) !== 0) {
light.mask = MASK_BAKE | MASK_AFFECT_LIGHTMAPPED | MASK_AFFECT_DYNAMIC;
light.shadowUpdateMode = light.type === LIGHTTYPE_DIRECTIONAL ? SHADOWUPDATE_REALTIME : SHADOWUPDATE_THISFRAME;
bakeLights.push(bakeLight);
}
}
bakeLights.sort();
}
restoreLights(allLights) {
for (let i = 0; i < allLights.length; i++) {
allLights[i].restore();
}
}
setupScene() {
this.ambientLight.copy(this.scene.ambientLight);
if (!this.scene.ambientBake) {
this.scene.ambientLight.set(0, 0, 0);
}
this.renderer.setSceneConstants();
this.device.scope.resolve("ambientBakeOcclusionContrast").setValue(this.scene.ambientBakeOcclusionContrast);
this.device.scope.resolve("ambientBakeOcclusionBrightness").setValue(this.scene.ambientBakeOcclusionBrightness);
}
restoreScene() {
this.scene.ambientLight.copy(this.ambientLight);
}
// compute bounding box for a single node
computeNodeBounds(meshInstances) {
const bounds = new BoundingBox();
if (meshInstances.length > 0) {
bounds.copy(meshInstances[0].aabb);
for (let m = 1; m < meshInstances.length; m++) {
bounds.add(meshInstances[m].aabb);
}
}
return bounds;
}
// compute bounding box for each node
computeNodesBounds(nodes) {
for (let i = 0; i < nodes.length; i++) {
const meshInstances = nodes[i].meshInstances;
nodes[i].bounds = this.computeNodeBounds(meshInstances);
}
}
// compute compound bounding box for an array of mesh instances
computeBounds(meshInstances) {
const bounds = new BoundingBox();
for (let i = 0; i < meshInstances.length; i++) {
bounds.copy(meshInstances[0].aabb);
for (let m = 1; m < meshInstances.length; m++) {
bounds.add(meshInstances[m].aabb);
}
}
return bounds;
}
backupMaterials(meshInstances) {
for (let i = 0; i < meshInstances.length; i++) {
this.materials[i] = meshInstances[i].material;
}
}
restoreMaterials(meshInstances) {
for (let i = 0; i < meshInstances.length; i++) {
meshInstances[i].material = this.materials[i];
}
}
lightCameraPrepare(device, bakeLight) {
const light = bakeLight.light;
let shadowCam;
if (light.type === LIGHTTYPE_SPOT) {
const lightRenderData = light.getRenderData(null, 0);
shadowCam = lightRenderData.shadowCamera;
shadowCam._node.setPosition(light._node.getPosition());
shadowCam._node.setRotation(light._node.getRotation());
shadowCam._node.rotateLocal(-90, 0, 0);
shadowCam.projection = PROJECTION_PERSPECTIVE;
shadowCam.nearClip = light.attenuationEnd / 1e3;
shadowCam.farClip = light.attenuationEnd;
shadowCam.aspectRatio = 1;
shadowCam.fov = light._outerConeAngle * 2;
this.renderer.updateCameraFrustum(shadowCam);
}
return shadowCam;
}
// prepares camera / frustum of the light for rendering the bakeNode
// returns true if light affects the bakeNode
lightCameraPrepareAndCull(bakeLight, bakeNode, shadowCam, casterBounds) {
const light = bakeLight.light;
let lightAffectsNode = true;
if (light.type === LIGHTTYPE_DIRECTIONAL) {
tempVec.copy(casterBounds.center);
tempVec.y += casterBounds.halfExtents.y;
this.camera.node.setPosition(tempVec);
this.camera.node.setEulerAngles(-90, 0, 0);
this.camera.nearClip = 0;
this.camera.farClip = casterBounds.halfExtents.y * 2;
const frustumSize = Math.max(casterBounds.halfExtents.x, casterBounds.halfExtents.z);
this.camera.orthoHeight = frustumSize;
} else {
if (!bakeLight.lightBounds.intersects(bakeNode.bounds)) {
lightAffectsNode = false;
}
}
if (light.type === LIGHTTYPE_SPOT) {
let nodeVisible = false;
const meshInstances = bakeNode.meshInstances;
for (let i = 0; i < meshInstances.length; i++) {
if (meshInstances[i]._isVisible(shadowCam)) {
nodeVisible = true;
break;
}
}
if (!nodeVisible) {
lightAffectsNode = false;
}
}
return lightAffectsNode;
}
// set up light array for a single light
setupLightArray(lightArray, light) {
lightArray[LIGHTTYPE_DIRECTIONAL].length = 0;
lightArray[LIGHTTYPE_OMNI].length = 0;
lightArray[LIGHTTYPE_SPOT].length = 0;
lightArray[light.type][0] = light;
light.visibleThisFrame = true;
}
renderShadowMap(comp, shadowMapRendered, casters, bakeLight) {
const light = bakeLight.light;
const isClustered = this.scene.clusteredLightingEnabled;
const castShadow = light.castShadows && (!isClustered || this.scene.lighting.shadowsEnabled);
if (!shadowMapRendered && castShadow) {
if (!light.shadowMap && !isClustered) {
light.shadowMap = this.shadowMapCache.get(this.device, light);
}
if (light.type === LIGHTTYPE_DIRECTIONAL) {
this.renderer._shadowRendererDirectional.cull(light, comp, this.camera, casters);
const shadowPass = this.renderer._shadowRendererDirectional.getLightRenderPass(light, this.camera);
shadowPass?.render();
} else {
this.renderer._shadowRendererLocal.cull(light, comp, casters);
if (isClustered) {
this.shadowLocalClusteredPass.update([light]);
if (this.shadowLocalClusteredPass.enabled) {
this.shadowLocalClusteredPass.render();
}
} else {
const faceCount = light.numShadowFaces;
const applyVsm = light._type === LIGHTTYPE_SPOT;
for (let face = 0; face < faceCount; face++) {
const renderPass = new RenderPassShadowLocalNonClustered(
this.device,
this.renderer.shadowRenderer,
light,
face,
applyVsm
);
renderPass.render();
}
}
}
}
return true;
}
postprocessTextures(device, bakeNodes, passCount) {
const numDilates2x = 1;
const dilateShader = this.lightmapFilters.getDilate(device, this.bakeHDR);
let denoiseShader;
const filterLightmap = this.scene.lightmapFilterEnabled;
if (filterLightmap) {
this.lightmapFilters.prepareDenoise(this.scene.lightmapFilterRange, this.scene.lightmapFilterSmoothness, this.bakeHDR);
denoiseShader = this.lightmapFilters.getDenoise(this.bakeHDR);
}
device.setBlendState(BlendState.NOBLEND);
device.setDepthState(DepthState.NODEPTH);
device.setStencilState(null, null);
for (let node = 0; node < bakeNodes.length; node++) {
const bakeNode = bakeNodes[node];
for (let pass = 0; pass < passCount; pass++) {
const nodeRT = bakeNode.renderTargets[pass];
const lightmap = nodeRT.colorBuffer;
const tempRT = this.renderTargets.get(lightmap.width);
const tempTex = tempRT.colorBuffer;
this.lightmapFilters.prepare(lightmap.width, lightmap.height);
for (let i = 0; i < numDilates2x; i++) {
this.lightmapFilters.setSourceTexture(lightmap);
const bilateralFilterEnabled = filterLightmap && pass === 0 && i === 0;
drawQuadWithShader(device, tempRT, bilateralFilterEnabled ? denoiseShader : dilateShader);
this.lightmapFilters.setSourceTexture(tempTex);
drawQuadWithShader(device, nodeRT, dilateShader);
}
}
}
}
bakeInternal(passCount, bakeNodes, allNodes) {
const scene = this.scene;
const comp = scene.layers;
const device = this.device;
const clusteredLightingEnabled = scene.clusteredLightingEnabled;
this.createMaterials(device, scene, passCount);
this.setupScene();
comp._update();
this.computeNodesBounds(bakeNodes);
this.allocateTextures(bakeNodes, passCount);
this.renderer.collectLights(comp);
const allLights = [], bakeLights = [];
this.prepareLightsToBake(allLights, bakeLights);
this.updateTransforms(allNodes);
const casters = this.prepareShadowCasters(allNodes);
this.renderer.updateCpuSkinMatrices(casters);
this.renderer.gpuUpdate(casters);
const casterBounds = this.computeBounds(casters);
let i, j, rcv, m;
for (i = 0; i < bakeNodes.length; i++) {
const bakeNode = bakeNodes[i];
rcv = bakeNode.meshInstances;
for (j = 0; j < rcv.length; j++) {
m = rcv[j];
m.setLightmapped(false);
m.mask = MASK_BAKE;
m.setRealtimeLightmap(MeshInstance.lightmapParamNames[0], this.blackTex);
m.setRealtimeLightmap(MeshInstance.lightmapParamNames[1], this.blackTex);
}
}
for (j = 0; j < bakeLights.length; j++) {
bakeLights[j].light.enabled = false;
}
const lightArray = [[], [], []];
let pass, node;
let shadersUpdatedOn1stPass = false;
for (i = 0; i < bakeLights.length; i++) {
const bakeLight = bakeLights[i];
const isAmbientLight = bakeLight instanceof BakeLightAmbient;
const isDirectional = bakeLight.light.type === LIGHTTYPE_DIRECTIONAL;
let numVirtualLights = bakeLight.numVirtualLights;
if (passCount > 1 && numVirtualLights > 1 && bakeLight.light.bakeDir) {
numVirtualLights = 1;
}
for (let virtualLightIndex = 0; virtualLightIndex < numVirtualLights; virtualLightIndex++) {
if (numVirtualLights > 1) {
bakeLight.prepareVirtualLight(virtualLightIndex, numVirtualLights);
}
bakeLight.startBake();
let shadowMapRendered = false;
const shadowCam = this.lightCameraPrepare(device, bakeLight);
for (node = 0; node < bakeNodes.length; node++) {
const bakeNode = bakeNodes[node];
rcv = bakeNode.meshInstances;
const lightAffectsNode = this.lightCameraPrepareAndCull(bakeLight, bakeNode, shadowCam, casterBounds);
if (!lightAffectsNode) {
continue;
}
this.setupLightArray(lightArray, bakeLight.light);
const clusterLights = isDirectional ? [] : [bakeLight.light];
if (clusteredLightingEnabled) {
this.renderer.lightTextureAtlas.update(clusterLights, this.lightingParams);
}
shadowMapRendered = this.renderShadowMap(comp, shadowMapRendered, casters, bakeLight);
if (clusteredLightingEnabled) {
this.worldClusters.update(clusterLights, this.lightingParams);
}
this.backupMaterials(rcv);
for (pass = 0; pass < passCount; pass++) {
if (pass > 0 && virtualLightIndex > 0) {
break;
}
if (isAmbientLight && pass > 0) {
break;
}
const nodeRT = bakeNode.renderTargets[pass];
const lightmapSize = bakeNode.renderTargets[pass].colorBuffer.width;
const tempRT = this.renderTargets.get(lightmapSize);
const tempTex = tempRT.colorBuffer;
if (pass === 0) {
shadersUpdatedOn1stPass = scene.updateShaders;
} else if (shadersUpdatedOn1stPass) {
scene.updateShaders = true;
}
let passMaterial = this.passMaterials[pass];
if (isAmbientLight) {
const lastVirtualLightForPass = virtualLightIndex + 1 === numVirtualLights;
if (lastVirtualLightForPass && pass === 0) {
passMaterial = this.ambientAOMaterial;
}
}
for (j = 0; j < rcv.length; j++) {
rcv[j].material = passMaterial;
}
this.renderer.updateShaders(rcv);
if (pass === PASS_DIR) {
this.constantBakeDir.setValue(bakeLight.light.bakeDir ? 1 : 0);
}
const renderPass = new RenderPassLightmapper(
device,
this.renderer,
this.camera,
clusteredLightingEnabled ? this.worldClusters : null,
rcv,
lightArray
);
renderPass.init(tempRT);
renderPass.colorOps.clear = true;
renderPass.colorOps.clearValue.copy(this.camera.clearColor);
renderPass.render();
renderPass.destroy();
bakeNode.renderTargets[pass] = tempRT;
this.renderTargets.set(lightmapSize, nodeRT);
for (j = 0; j < rcv.length; j++) {
m = rcv[j];
m.setRealtimeLightmap(MeshInstance.lightmapParamNames[pass], tempTex);
m._shaderDefs |= SHADERDEF_LM;
}
}
this.restoreMaterials(rcv);
}
bakeLight.endBake(this.shadowMapCache);
}
}
this.postprocessTextures(device, bakeNodes, passCount);
for (node = 0; node < allNodes.length; node++) {
allNodes[node].restore();
}
this.restoreLights(allLights);
this.restoreScene();
if (!clusteredLightingEnabled) {
this.shadowMapCache.clear();
}
}
}
export {
Lightmapper
};