From 21b66bda2968cd73b370e826ee1154acdc6e3569 Mon Sep 17 00:00:00 2001
From: wangyawei <1796609990@qq.com>
Date: 星期五, 18 四月 2025 20:28:27 +0800
Subject: [PATCH] 修改雨的效果
---
src/utils/rain.js | 25 +++++++++++++++++++------
1 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/src/utils/rain.js b/src/utils/rain.js
index a7499e5..2be1717 100644
--- a/src/utils/rain.js
+++ b/src/utils/rain.js
@@ -6,6 +6,7 @@
this.tiltAngle = Cesium.defaultValue(options.tiltAngle, -0.6);
this.rainSize = Cesium.defaultValue(options.rainSize, 0.3);
this.rainSpeed = Cesium.defaultValue(options.rainSpeed, 60.0);
+ this.rainDensity = Cesium.defaultValue(options.rainSpeed, 30.0);
this.color = Cesium.defaultValue(options.color, new Cesium.Color(0.6, 0.7, 0.8, 1.0));
this.viewer = viewer;
this.init();
@@ -28,6 +29,9 @@
rainSpeed: () => {
return this.rainSpeed;
},
+ rainDensity: () => {
+ return this.rainDensity;
+ },
},
});
this.viewer.scene.postProcessStages.add(this.rainStage);
@@ -49,7 +53,6 @@
show(visible) {
this.rainStage.enabled = visible;
}
-
rain() {
return "uniform sampler2D colorTexture;\n\
in vec2 v_textureCoordinates;\n\
@@ -57,6 +60,7 @@
uniform vec4 rainColor;\n\
uniform float rainSize;\n\
uniform float rainSpeed;\n\
+ uniform float rainDensity;\n\
float hash(float x) {\n\
return fract(sin(x * 133.3) * 13.13);\n\
}\n\
@@ -69,11 +73,20 @@
float a = tiltAngle;\n\
float si = sin(a), co = cos(a);\n\
uv *= mat2(co, -si, si, co);\n\
- uv *= length(uv + vec2(0, 4.9)) / (rainSize * 3.0 + 0.1) + 0.5;\n\
- float v = 1. - sin(hash(floor(uv.x * 100.)) * 2.);\n\
- float b = clamp(abs(sin(20. * time * v + uv.y * (5. / (2. + v)))) - .95, 0., 1.) * 20.;\n\
- c *= v * b;\n\
- fragColor = mix(texture(colorTexture, v_textureCoordinates), vec4(c, 1), .5);\n\
+ uv *= length(uv + vec2(0, 4.9)) / (rainSize * 3.0 + 0.1) + 0.5;\n\
+ // 闄愬埗鏈�澶у瘑搴﹀�硷紝浣跨敤瀵规暟鍑芥暟鏉ュ帇缂╅珮瀵嗗害鑼冨洿\n\
+ float cappedDensity = min(rainDensity, 30.0 + (rainDensity - 30.0) * 0.1);\n\
+ float densityScale = pow(cappedDensity / 200.0, 0.4); // 浣跨敤0.4娆″箓杩涗竴姝ュ帇缂‐n\
+ // 鍑忓皯鍩虹闆ㄦ淮鏁伴噺\n\
+ float v = 1. - sin(hash(floor(uv.x * (25.0 + densityScale * 50.0))) * 2.);\n\
+ // 浣跨敤鏇翠弗鏍肩殑闃堝�煎嚱鏁帮紝璁╅珮瀵嗗害鏃跺鍔犳洿灏戠殑闆╘n\
+ float densityThreshold = 0.96 - (0.15 * log(1.0 + cappedDensity / 50.0));\n\
+ float b = clamp(abs(sin(20. * time * v + uv.y * (5. / (2. + v)))) - densityThreshold, 0., 1.) * 20.;\n\
+ // 璁＄畻闆ㄦ淮棰滆壊\n\
+ vec3 finalColor = rainColor.rgb * v * b;\n\
+ // 璋冩暣娣峰悎绯绘暟\n\
+ float mixFactor = min(b * 0.05, 0.5);\n\
+ fragColor = mix(texture(colorTexture, v_textureCoordinates), vec4(finalColor, 1), mixFactor);\n\
}\n\
";
}
--
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