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add foam effect #3

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Merged
belopot merged 7 commits into from
Sep 15, 2022
Merged

add foam effect #3

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d75a3b5
fix water cannot change the position in .scn file
tcm390 Jul 22, 2022
254b730
typo
tcm390 Jul 22, 2022
31df668
play the falling sound when falling speed larger than 1
tcm390 Jul 22, 2022
016afff
water shader and add foam
tcm390 Jul 23, 2022
00b55f5
reduce flow speed
tcm390 Jul 23, 2022
014e457
reduce flow speed
tcm390 Jul 23, 2022
c56712c
Merge branch 'main' into fix-water-position-bug
belopot Sep 15, 2022
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101 changes: 98 additions & 3 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ const sounds = useSound();
const soundFiles = sounds.getSoundFiles();

let reflectionSsrPass = null;
let foamPass = null;

const baseUrl = import.meta.url.replace(/(\/)[^\/\\]*$/, '$1');
const textureLoader = new THREE.TextureLoader();
Expand Down Expand Up @@ -214,6 +215,24 @@ class WaterMesh extends BatchedMesh {
flowmapTexture: {
value: flowmapTexture
},
threshold: {
value: 0.1
},
tDudv: {
value: null
},
tDepth: {
value: null
},
cameraNear: {
value: 0
},
cameraFar: {
value: 0
},
resolution: {
value: new THREE.Vector2()
},
},
vertexShader: `\

Expand Down Expand Up @@ -260,7 +279,20 @@ class WaterMesh extends BatchedMesh {

varying vec2 vUv;
varying vec3 vPos;

uniform sampler2D tDepth;
uniform sampler2D tDudv;
uniform float cameraNear;
uniform float cameraFar;
uniform float threshold;
uniform vec2 resolution;

float getDepth( const in vec2 screenPosition ) {
return unpackRGBAToDepth( texture2D( tDepth, screenPosition ) );
}

float getViewZ( const in float depth ) {
return perspectiveDepthToViewZ( depth, cameraNear, cameraFar );
}
float frac(float v)
{
return v - floor(v);
Expand Down Expand Up @@ -314,6 +346,30 @@ class WaterMesh extends BatchedMesh {
gl_FragColor.rgb /= 3.;
gl_FragColor += vec4( specularHighlight, 0.0 );




// foam
vec2 screenUV = gl_FragCoord.xy / resolution;

float fragmentLinearEyeDepth = getViewZ( gl_FragCoord.z );
float linearEyeDepth = getViewZ( getDepth( screenUV ) );

float diff = saturate( fragmentLinearEyeDepth - linearEyeDepth );
if(diff > 0.){
vec2 channelA = texture2D( tDudv, vec2(0.25 * worldPosition.x + uTime * 0.04, 0.5 * worldPosition.z - uTime * 0.03) ).rg;
vec2 channelB = texture2D( tDudv, vec2(0.5 * worldPosition.x - uTime * 0.05, 0.35 * worldPosition.z + uTime * 0.04) ).rg;
vec2 displacement = (channelA + channelB) * 0.5;
displacement = ( ( displacement * 2.0 ) - 1.0 ) * 1.0;
diff += displacement.x;


// vec2 displacement = texture2D( tDudv, ( worldPosition.xz * 1.0 ) - uTime * 0.05 ).rg;
// displacement = ( ( displacement * 2.0 ) - 1.0 ) * 1.0;
// diff += displacement.x;

gl_FragColor = mix( vec4(1.0, 1.0, 1.0, gl_FragColor.a), gl_FragColor, step( 0.05, diff ) );
}


${THREE.ShaderChunk.logdepthbuf_fragment}
Expand Down Expand Up @@ -960,6 +1016,20 @@ export default (e) => {
}
}

const pixelRatio = renderer.getPixelRatio();

const renderTarget = new THREE.WebGLRenderTarget(
window.innerWidth * pixelRatio,
window.innerHeight * pixelRatio
);
renderTarget.texture.minFilter = THREE.NearestFilter;
renderTarget.texture.magFilter = THREE.NearestFilter;
renderTarget.texture.generateMipmaps = false;
renderTarget.stencilBuffer = false;

const depthMaterial = new THREE.MeshDepthMaterial();
depthMaterial.depthPacking = THREE.RGBADepthPacking;
depthMaterial.blending = THREE.NoBlending;

useFrame(({timestamp, timeDiff}) => {
if (!!tracker && !app.getComponent('renderPosition')) {
Expand All @@ -978,6 +1048,17 @@ export default (e) => {
pass.opacity = 0.12;
reflectionSsrPass = pass;
}
if(pass.constructor.name === 'WebaverseRenderPass'){
pass.foamDepthMaterial = depthMaterial;
pass.foamRenderTarget = renderTarget;
pass.water = generator.getMeshes()[0];
pass.scene = scene;
pass.camera = camera;
pass.foamInvisibleList.push(localPlayer.avatar.app);
pass.foamInvisibleList.push(generator.getMeshes()[0]);
foamPass = pass;
console.log(pass);
}
}
alreadySetComposer = true;
console.log(renderSettings.findRenderSettings(scene))
Expand Down Expand Up @@ -1214,6 +1295,18 @@ export default (e) => {
generator.getMeshes()[0].material.uniforms.uTime.value = timestamp / 1000;
generator.getMeshes()[0].material.uniforms.playerPosition.value.copy(localPlayer.position);
generator.getMeshes()[0].material.uniforms.playerDirection.value.copy(playerDir);


generator.getMeshes()[0].material.uniforms.cameraNear.value = camera.near;
generator.getMeshes()[0].material.uniforms.cameraFar.value = camera.far;
generator.getMeshes()[0].material.uniforms.resolution.value.set(
window.innerWidth * window.devicePixelRatio,
window.innerHeight * window.devicePixelRatio
);
generator.getMeshes()[0].material.uniforms.tDudv.value = dudvMap2;
generator.getMeshes()[0].material.uniforms.tDepth.value = renderTarget.texture;


}
}
count++;
Expand Down Expand Up @@ -1305,10 +1398,11 @@ export default (e) => {
let cameraHasMask = false;
let alreadySetComposer = false;
useFrame(({timestamp}) => {
if(!alreadySetComposer && renderSettings.findRenderSettings(scene)){
if(!alreadySetComposer && foamPass && renderSettings.findRenderSettings(scene)){
renderSettings.findRenderSettings(scene).fog.color.r = 4 / 255;
renderSettings.findRenderSettings(scene).fog.color.g = 41.5 / 255;
renderSettings.findRenderSettings(scene).fog.color.b = 44.5 / 255;
foamPass.foamInvisibleList.push(mask);
alreadySetComposer = true;
}

Expand Down Expand Up @@ -4818,8 +4912,9 @@ export default (e) => {
let alreadySetComposer = false;
useFrame(({timestamp}) => {
if(!alreadySetComposer){
if(splashMesh && reflectionSsrPass){
if(splashMesh && reflectionSsrPass && foamPass){
reflectionSsrPass._selects.push(splashMesh);
foamPass.foamInvisibleList.push(splashMesh);
alreadySetComposer = true;
}
}
Expand Down