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'../systems/EntitySystem/Component'; import RenderSystem, { Command, RenderFullscreenCommand } from '../systems/RenderSystem'; import System from '../systems/System'; import { mat4, vec2 } from '../utils/gl-matrix'; import { getPOT, getMipmapScale } from '../utils'; const cachedTempMat4 = mat4.create(); const cachedZeroMat4 = mat4.fromValues( 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ); let rttUidGenerator = 0; export class PostprocessPass { constructor() { this._command = new RenderFullscreenCommand(); this._targets = new Map(); this._renderer = null; } dispose() { this._command.dispose(); this.destroyAllTargets(); this._command = null; this._targets = null; this._renderer = null; } apply( gl, renderer, textureSource, renderTarget, shader, overrideUniforms = null, overrideSamplers = null ) { const { _command } = this; _command.shader = shader; _command.overrideUniforms.clear(); _command.overrideSamplers.clear(); _command.overrideSamplers.set('sBackBuffer', { texture: textureSource }); if (!!overrideUniforms) { for (const key in overrideUniforms) { _command.overrideUniforms.set(key, overrideUniforms[key]); } } if (!!overrideSamplers) { for (const key in overrideSamplers) { _command.overrideSamplers.set(key, overrideSamplers[key]); } } if (!renderTarget) { renderer.disableRenderTarget(); } else { renderer.enableRenderTarget(renderTarget); } _command.onRender(gl, renderer, 0, null); } createTarget(id, level = 0, floatPointData = false, potMode = null) { if (typeof id !== 'string') { throw new Error('`id` is not type of String!'); } if (typeof level !== 'number') { throw new Error('`level` is not type of Number!'); } if (typeof floatPointData !== 'boolean') { throw new Error('`floatPointData` is not type of Boolean!'); } if (!!potMode && typeof potMode !== 'string') { throw new Error('`potMode` is not type of String!'); } level = level | 0; const { _targets } = this; if (_targets.has(id)) { const target = _targets.get(id); target.level = level; target.floatPointData = floatPointData; target.potMode = potMode; target.dirty = true; return target.target; } else { const target = `#Camera-PostprocessPass-${++rttUidGenerator}`; _targets.set(id, { target, level, floatPointData, potMode, dirty: true }); return target; } } destroyTarget(id) { if (typeof id !== 'string') { throw new Error('`id` is not type of String!'); } const { _targets, _renderer } = this; if (_targets.has(id)) { const target = _targets.get(id); if (!!_renderer) { _renderer.unregisterRenderTarget(target.target); } _targets.delete(id); } } destroyAllTargets() { const { _targets, _renderer } = this; if (!!_renderer) { for (const target of _targets.values()) { _renderer.unregisterRenderTarget(target.target); } } _targets.clear(); } getTargetId(id) { if (typeof id !== 'string') { throw new Error('`id` is not type of String!'); } return this._targets.get(id).target || null; } onApply(gl, renderer, textureSource, renderTarget) { this._renderer = renderer; const { _targets } = this; for (const target of _targets.values()) { if (!!target.dirty) { target.dirty = false; const { width, height } = renderer.canvas; const w = !target.potMode ? width : getPOT(width, target.potMode === 'upper'); const h = !target.potMode ? height : getPOT(height, target.potMode === 'upper'); const s = getMipmapScale(target.level); renderer.registerRenderTarget( target.target, w * s, h * s, target.floatPointData ); } } } onResize(width, height) { const { _targets } = this; for (const target of _targets.values()) { target.dirty = true; } } } /** * Camera base class component. */ export default class Camera extends Component { /** @type {*} */ static get propsTypes() { return { ignoreChildrenViews: 'boolean', captureEntity: 'string_null', renderTargetId: 'string_null', renderTargetWidth: 'integer', renderTargetHeight: 'integer', renderTargetScale: 'number', renderTargetFloat: 'boolean', renderTargetMulti: 'array(any)', layer: 'string_null' }; } /** * Component factory. * * @return {Camera} Component instance. */ static factory() { return new Camera(); } /** @type {boolean} */ get ignoreChildrenViews() { return this._ignoreChildrenViews; } /** @type {boolean} */ set ignoreChildrenViews(value) { if (typeof value !== 'boolean') { throw new Error('`value` is not type of Boolean!'); } this._ignoreChildrenViews = value; } /** @type {string|null} */ get captureEntity() { return this._captureEntity; } /** @type {string|null} */ set captureEntity(value) { if (typeof value !== 'string') { throw new Error('`value` is not type of String'); } this._captureEntity = value; } /** @type {string|null} */ get renderTargetId() { return this._renderTargetId; } /** @type {string|null} */ set renderTargetId(value) { if (!!value && typeof value !== 'string') { throw new Error('`value` is not type of String'); } this._renderTargetId = value; this._renderTargetDirty = true; this._dirty = true; } /** @type {number} */ get renderTargetWidth() { return this._renderTargetWidth; } /** @type {number} */ set renderTargetWidth(value) { if (typeof value !== 'number') { throw new Error('`value` is not type of Number'); } this._renderTargetWidth = value | 0; this._renderTargetDirty = true; this._dirty = true; } /** @type {number} */ get renderTargetHeight() { return this._renderTargetHeight; } /** @type {number} */ set renderTargetHeight(value) { if (typeof value !== 'number') { throw new Error('`value` is not type of Number'); } this._renderTargetHeight = value | 0; this._renderTargetDirty = true; this._dirty = true; } /** @type {number} */ get renderTargetScale() { return this._renderTargetScale; } /** @type {number} */ set renderTargetScale(value) { if (typeof value !== 'number') { throw new Error('`value` is not type of Number'); } this._renderTargetScale = value; this._renderTargetDirty = true; this._dirty = true; } /** @type {boolean} */ get renderTargetFloat() { return this._renderTargetFloat; } /** @type {boolean} */ set renderTargetFloat(value) { if (typeof value !== 'boolean') { throw new Error('`value` is not type of Boolean'); } this._renderTargetFloat = value; this._renderTargetDirty = true; this._dirty = true; } /** @type {*[]} */ get renderTargetMulti() { return this._renderTargetMulti; } /** @type {*[]} */ set renderTargetMulti(value) { this._renderTargetMulti = value; this._renderTargetDirty = true; this._dirty = true; } /** @type {string|null} */ get layer() { return this._layer; } /** @type {string|null} */ set layer(value) { if (!!value && typeof value !== 'string') { throw new Error('`value` is not type of String!'); } this._layer = value; } /** @type {mat4} */ get projectionMatrix() { return this._projectionMatrix; } /** @type {mat4} */ get inverseProjectionMatrix() { return this._inverseProjectionMatrix; } /** @type {mat4} */ get viewMatrix() { return this.entity.transform; } /** @type {mat4} */ get inverseViewMatrix() { return this.entity.inverseTransform; } /** @type {mat4} */ get viewProjectionMatrix() { return this.entity.transform; } /** @type {mat4} */ get inverseViewProjectionMatrix() { return this.entity.inverseTransform; } /** @type {Command|null} */ get command() { return this._command; } /** @type {Command|null} */ set command(value) { if (!value) { this._command = null; return; } if (!(value instanceof Command)) { throw new Error('`value` is not type of Command!'); } this._command = value; } /** * Constructor. */ constructor() { super(); this._ignoreChildrenViews = false; this._captureEntity = null; this._projectionMatrix = mat4.create(); this._inverseProjectionMatrix = mat4.create(); this._viewProjectionMatrix = mat4.create(); this._inverseViewProjectionMatrix = mat4.create(); mat4.copy(this._projectionMatrix, cachedZeroMat4); mat4.copy(this._inverseProjectionMatrix, cachedZeroMat4); mat4.copy(this._viewProjectionMatrix, cachedZeroMat4); mat4.copy(this._inverseViewProjectionMatrix, cachedZeroMat4); this._context = null; this._renderTargetId = null; this._renderTargetIdUsed = null; this._renderTargetWidth = 0; this._renderTargetHeight = 0; this._renderTargetScale = 1; this._renderTargetFloat = false; this._renderTargetMulti = null; this._renderTargetDirty = false; this._layer = null; this._postprocess = null; this._postprocessRtt = null; this._postprocessCachedWidth = 0; this._postprocessCachedHeight = 0; this._command = null; this._dirty = true; this._onResize = this.onResize.bind(this); } /** * @override */ dispose() { super.dispose(); const { _context, _renderTargetIdUsed, _postprocessRtt, _command } = this; if (!!_context) { if (!!_renderTargetIdUsed) { _context.unregisterRenderTarget(_renderTargetIdUsed); } if (!!_postprocessRtt) { _context.unregisterRenderTarget(_postprocessRtt); } this._context = null; } if (!!_command) { _command.dispose(); } this._captureEntity = null; this._projectionMatrix = null; this._inverseProjectionMatrix = null; this._viewProjectionMatrix = null; this._inverseViewProjectionMatrix = null; this._postprocess = null; this._renderTargetId = null; this._renderTargetIdUsed = null; this._renderTargetMulti = null; this._postprocessRtt = null; this._layer = null; this._postprocess = null; this._postprocessRtt = null; this._command = null; this._onResize = null; } /** * Building camera matrix. * * @abstract * @param {mat4} target - Result mat4 object. * @param {number} width - Width. * @param {number} height - Height. */ buildCameraMatrix(target, width, height) { throw new Error('Not implemented!'); } /** * Register postprocess. * * @param {PostprocessPass} postprocess - Postprocess pass. * @param {boolean} floatPointData - Tells if stores floating point texture data. */ registerPostprocess(postprocess, floatPointData = false) { if (!(postprocess instanceof PostprocessPass)) { throw new Error('`postprocess` is not type of PostprocessPass!'); } const { _postprocess } = this; if (!_postprocess) { this._postprocessCachedWidth = 0; this._postprocessCachedHeight = 0; } this._postprocess = { postprocess, floatPointData }; } /** * Unregister postprocess. */ unregisterPostprocess() { const { _postprocess } = this; if (!_postprocess) { return; } this._postprocess = null; this._postprocessCachedWidth = 0; this._postprocessCachedHeight = 0; } /** * Convert screen space unit ([-1; 1]) vec2 point to global vec2 point. * * @param {vec2} target - Result vec2 point. * @param {vec2} unitVec - Input screen space unit vec2 point. */ convertUnitPointToGlobalPoint(target, unitVec) { vec2.transformMat4( target, unitVec, this._inverseViewProjectionMatrix ); } /** * @override */ onAttach() { const { RenderSystem } = System.systems; if (!RenderSystem) { throw new Error('There is no registered RenderSystem!'); } RenderSystem.events.on('resize', this._onResize); } /** * @override */ onDetach() { const { RenderSystem } = System.systems; if (!RenderSystem) { throw new Error('There is no registered RenderSystem!'); } RenderSystem.events.off('resize', this._onResize); } /** * @override */ onAction(name, ...args) { if (name === 'view') { return this.onView(...args); } } /** * Called when camera need to view rendered scene. * * @param {WebGLRenderingContext} gl - WebGL context. * @param {RenderSystem} renderer - Calling renderer instance. * @param {number} deltaTime - Delta time. * * @return {boolean} True if ignore viewing entity children, false otherwise. */ onView(gl, renderer, deltaTime) { const { entity, _ignoreChildrenViews } = this; if (!entity) { return _ignoreChildrenViews; } let { width, height } = renderer.canvas; const { _captureEntity, _projectionMatrix, _inverseProjectionMatrix, _viewProjectionMatrix, _inverseViewProjectionMatrix, _renderTargetWidth, _renderTargetHeight, _renderTargetScale, _postprocess } = this; if (_renderTargetWidth > 0) { width = _renderTargetWidth; } if (_renderTargetHeight > 0) { height = _renderTargetHeight; } const target = !!_captureEntity ? entity.findEntity(_captureEntity) : entity; if ((width | 0) === 0 || (height | 0) === 0) { mat4.copy(_projectionMatrix, cachedZeroMat4); mat4.copy(_inverseProjectionMatrix, cachedZeroMat4); mat4.copy(renderer.projectionMatrix, cachedZeroMat4); mat4.copy(renderer.viewMatrix, cachedZeroMat4); mat4.copy(_viewProjectionMatrix, cachedZeroMat4); mat4.copy(_inverseViewProjectionMatrix, cachedZeroMat4); if (this._dirty) { this._dirty = false; target.performAction('camera-changed', this); } return _ignoreChildrenViews; } this._context = renderer; if (this._renderTargetDirty) { if (!!this._renderTargetId) { if (!!this._renderTargetIdUsed) { renderer.unregisterRenderTarget(this._renderTargetIdUsed); } this._renderTargetIdUsed = this._renderTargetId; if (!!this._renderTargetMulti) { renderer.registerRenderTargetMulti( this._renderTargetIdUsed, width * _renderTargetScale, height * _renderTargetScale, this._renderTargetMulti ); } else { renderer.registerRenderTarget( this._renderTargetIdUsed, width * _renderTargetScale, height * _renderTargetScale, this._renderTargetFloat ); } } else { renderer.unregisterRenderTarget(this._renderTargetIdUsed); this._renderTargetIdUsed = null; } this._renderTargetDirty = false; } this.buildCameraMatrix(_projectionMatrix, width, height); mat4.invert(_inverseProjectionMatrix, _projectionMatrix); mat4.copy(renderer.projectionMatrix, _projectionMatrix); mat4.copy(renderer.viewMatrix, entity.inverseTransform); mat4.multiply( _viewProjectionMatrix, _projectionMatrix, entity.inverseTransform ); mat4.invert(_inverseViewProjectionMatrix, _viewProjectionMatrix); if (this._postprocessCachedWidth !== width || this._postprocessCachedHeight !== height ) { this._postprocessCachedWidth = width; this._postprocessCachedHeight = height; if (!!this._postprocessRtt) { renderer.unregisterRenderTarget(this._postprocessRtt); this._postprocessRtt = null; } if (!!_postprocess) { const rtt = `#Camera-PostprocessPass-${++rttUidGenerator}`; renderer.registerRenderTarget( rtt, width, height, _postprocess.floatPointData ); this._postprocessRtt = rtt; } } if (!_postprocess) { if (!!this._renderTargetIdUsed) { renderer.enableRenderTarget(this._renderTargetIdUsed); } if (!!this._command) { renderer.executeCommand(this._command, deltaTime, this._layer); } else { if (!!this._layer) { target.performAction( 'render-layer', gl, renderer, deltaTime, this._layer ); } else { target.performAction('render', gl, renderer, deltaTime, null); } } if (!!this._renderTargetIdUsed) { renderer.disableRenderTarget(); } } else { const { _postprocessRtt } = this; renderer.enableRenderTarget(_postprocessRtt); if (!!this._command) { renderer.executeCommand(this._command, deltaTime, this._layer); } else { if (!!this._layer) { target.performAction( 'render-layer', gl, renderer, deltaTime, this._layer ); } else { target.performAction('render', gl, renderer, deltaTime, null); } } _postprocess.postprocess.onApply( gl, renderer, _postprocessRtt, this._renderTargetIdUsed || null ); renderer.disableRenderTarget(); } if (this._dirty) { this._dirty = false; target.performAction('camera-changed', this); } return _ignoreChildrenViews; } /** * Called on view resize. * * @param {number} width - Width. * @param {number} height - Height. */ onResize(width, height) { const { _renderTargetWidth, _renderTargetHeight, _command, _postprocess } = this; if (_renderTargetWidth <= 0 || _renderTargetHeight <= 0) { this._renderTargetDirty = true; this._postprocessCachedWidth = 0; this._postprocessCachedHeight = 0; this._dirty = true; } if (!!_command) { _command.onResize(width, height); } if (!!_postprocess) { _postprocess.postprocess.onResize(width, height); } } } </code></pre> </div> <footer class="footer"> Generated by <a href="https://esdoc.org">ESDoc(1.1.0)<img src="./image/esdoc-logo-mini-black.png"></a> </footer> <script src="script/search_index.js"></script> <script src="script/search.js"></script> <script src="script/pretty-print.js"></script> <script src="script/inherited-summary.js"></script> <script src="script/test-summary.js"></script> 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