var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
import { Color, PerspectiveCamera } from "three";
import { MODULES } from "../../../engine/engine_modules.js";
import { serializable } from "../../../engine/engine_serialization.js";
import { PostProcessingEffect } from "../PostProcessingEffect.js";
import { VolumeParameter } from "../VolumeParameter.js";
import { registerCustomEffectType } from "../VolumeProfile.js";
/** [ScreenSpaceAmbientOcclusion](https://engine.needle.tools/docs/api/ScreenSpaceAmbientOcclusion) is a screenspace ambient occlusion post-processing effect.
 * We recommend using ScreenSpaceAmbientOcclusionN8 instead.
 * @category Effects
 * @group Components
 */
export class ScreenSpaceAmbientOcclusion extends PostProcessingEffect {
    get typeName() {
        return "ScreenSpaceAmbientOcclusion";
    }
    intensity = new VolumeParameter(2);
    falloff = new VolumeParameter(1);
    samples = new VolumeParameter(9);
    color = new VolumeParameter(new Color(0, 0, 0));
    luminanceInfluence = new VolumeParameter(.7);
    onBeforeRender() {
        if (this._ssao && this.context.mainCamera instanceof PerspectiveCamera) {
            const fadeDistance = this.context.mainCamera.far - this.context.mainCamera.near;
            this._ssao.ssaoMaterial.worldDistanceFalloff = fadeDistance * .01;
            this._ssao.ssaoMaterial.worldDistanceThreshold = this.context.mainCamera.far;
        }
    }
    _ssao;
    onCreateEffect() {
        const cam = this.context.mainCamera;
        const normalPass = new MODULES.POSTPROCESSING.MODULE.NormalPass(this.context.scene, cam);
        const depthDownsamplingPass = new MODULES.POSTPROCESSING.MODULE.DepthDownsamplingPass({
            normalBuffer: normalPass.texture,
            resolutionScale: .5
        });
        const ssao = this._ssao = new MODULES.POSTPROCESSING.MODULE.SSAOEffect(cam, normalPass.texture, {
            normalDepthBuffer: depthDownsamplingPass.texture,
            worldDistanceThreshold: 1, // when it starts to fade out
            worldDistanceFalloff: 1, // smoothness of cutoff
            worldProximityThreshold: .1,
            worldProximityFalloff: 2,
            intensity: 1,
            blendFunction: MODULES.POSTPROCESSING.MODULE.BlendFunction.MULTIPLY,
            luminanceInfluence: .5,
        });
        this.intensity.onValueChanged = newValue => {
            ssao.intensity = newValue;
        };
        this.falloff.onValueChanged = newValue => {
            ssao.ssaoMaterial.radius = newValue * .1;
        };
        this.samples.onValueChanged = newValue => {
            ssao.ssaoMaterial.samples = newValue;
        };
        this.color.onValueChanged = newValue => {
            if (!ssao.color)
                ssao.color = new Color();
            ssao.color.copy(newValue);
        };
        this.luminanceInfluence.onValueChanged = newValue => {
            ssao.luminanceInfluence = newValue;
        };
        const arr = new Array();
        arr.push(normalPass);
        arr.push(depthDownsamplingPass);
        arr.push(ssao);
        return arr;
    }
}
__decorate([
    serializable(VolumeParameter)
], ScreenSpaceAmbientOcclusion.prototype, "intensity", void 0);
__decorate([
    serializable(VolumeParameter)
], ScreenSpaceAmbientOcclusion.prototype, "falloff", void 0);
__decorate([
    serializable(VolumeParameter)
], ScreenSpaceAmbientOcclusion.prototype, "samples", void 0);
__decorate([
    serializable(VolumeParameter)
], ScreenSpaceAmbientOcclusion.prototype, "color", void 0);
__decorate([
    serializable(VolumeParameter)
], ScreenSpaceAmbientOcclusion.prototype, "luminanceInfluence", void 0);
registerCustomEffectType("ScreenSpaceAmbientOcclusion", ScreenSpaceAmbientOcclusion);
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