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Merge branch 'release/0.7.0'

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caizhitao 2020-02-07 10:12:31 +08:00
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4
CHANGELOG.md
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# ChangeLog
## 0.7.0 (2020-02-07)
- 加入高斯模糊V1版本（纯原理篇）
## 0.6.0 (2020-01-17)
- 加入新的圆角裁剪特效 v2 ，支持任意宽高纹理圆角裁剪

8
README.md
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# Cocos Creator Shader Effect Demo
[![](https://img.shields.io/badge/Release-0.6.0-green.svg)](CHANGELOG.md)
[![](https://img.shields.io/badge/Release-0.7.0-green.svg)](CHANGELOG.md)
[![](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE)
[![](https://img.shields.io/badge/Support-Cocos%20Creator%20v2.2.1-orange.svg)](http://www.cocos.com/creator)
@ -20,6 +20,7 @@
* [Cocos Creator Shader Effect 系列 - 5 - 马赛克/像素化特效](https://www.jianshu.com/p/40e72ab76afd)
* [Cocos Creator Shader Effect 系列 - 6 - 内发光特效](https://www.jianshu.com/p/326b73f86ecc)
* [Cocos Creator Shader Effect 系列 - 7 - 点光/扫光特效](https://www.jianshu.com/p/8ff03b34b0bd)
* [Cocos Creator Shader Effect 系列 - 8 - 高斯模糊](https://www.jianshu.com/p/9e42cbb1d4a8)
* 编写中...
@ -69,12 +70,15 @@
### 圆角裁剪-v2（2020.01.17更新）
在 **圆角裁剪-v1** 的原理基础上，新增支持任意纹理的圆角裁剪
在 **圆角裁剪-v1** 的原理基础上，新增支持任意宽高纹理的圆角裁剪
如：下面Gif中第3到5秒演示所示，黄色和红色的非正方形纹理也能裁剪出圆角效果
![](static/effects/2d-sprite-round-corner-crop-v2.gif)
### 高斯模糊-V1（[实现原理](https://www.jianshu.com/p/9e42cbb1d4a8)）2020.02.07更新）
![](static/effects/2d-sprite-gaussian-blur-v1.png)
### 外发光（完善中...）

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assets/effects/sprite-gaussian-blur-v1.effect Normal file
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// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
// 高斯模糊
//
// 参考资料（必读）
// * http://www.ruanyifeng.com/blog/2012/11/gaussian_blur.html
// * https://zh.wikipedia.org/wiki/%E9%AB%98%E6%96%AF%E6%A8%A1%E7%B3%8A
CCEffect %{
techniques:
- passes:
- vert: vs
frag: fs
blendState:
targets:
- blend: true
rasterizerState:
cullMode: none
properties:
texture: { value: white }
alphaThreshold: { value: 0.5 }
# # 标准方差值
# stDev: {
# value: 0.84089642,
# inspector: {
# tooltip: "标准方差值"
# }
# }
# 纹理尺寸
textureSize: {
value: [100.0, 100.0],
inspector: {
tooltip: "纹理尺寸px（宽 x 高）"
}
}
}%
CCProgram vs %{
precision highp float;
#include <cc-global>
#include <cc-local>
in vec3 a_position;
in vec4 a_color;
out vec4 v_color;
#if USE_TEXTURE
in vec2 a_uv0;
out vec2 v_uv0;
#endif
void main () {
vec4 pos = vec4(a_position, 1);
#if CC_USE_MODEL
pos = cc_matViewProj * cc_matWorld * pos;
#else
pos = cc_matViewProj * pos;
#endif
#if USE_TEXTURE
v_uv0 = a_uv0;
#endif
v_color = a_color;
gl_Position = pos;
}
}%
CCProgram fs %{
precision highp float;
#include <alpha-test>
in vec4 v_color;
#if USE_TEXTURE
in vec2 v_uv0;
uniform sampler2D texture;
#endif
#if ENABLE_GAUSSIAN_BLUR
// 定义无理数
#define e 2.718281828459045
// 定义标准方差值（方差值越大，越模糊，但是需要计算的高斯矩阵范围会变大，从而带来巨大的计算量）
// #define stDev 0.84089642
#define stDev 1.5
// #define stDev 5.0
// #define stDev 10.0
// 定义π
#define pi 3.141592653589793
// 接收外部变量
uniform GaussianBlur {
// 纹理尺寸（宽 x 高）（px）
vec2 textureSize;
// // 标准方差值
// float stDev;
}
/**
* 获取权重(对应二维高斯函数公式，见 https://zh.wikipedia.org/wiki/%E9%AB%98%E6%96%AF%E6%A8%A1%E7%B3%8A )
*/
float getWeight(float x, float y) {
return (1.0 / (2.0 * pi * pow(stDev, 2.0))) * pow(1.0 / e, (pow(x, 2.0) + pow(y, 2.0)) / (2.0 * pow(stDev, 2.0)));
}
#endif
void main () {
vec4 o = vec4(1, 1, 1, 1);
#if USE_TEXTURE
o *= texture(texture, v_uv0);
#if CC_USE_ALPHA_ATLAS_TEXTURE
o.a *= texture2D(texture, v_uv0 + vec2(0, 0.5)).r;
#endif
#endif
o *= v_color;
ALPHA_TEST(o);
gl_FragColor = o;
#if ENABLE_GAUSSIAN_BLUR
// 根据高斯分布（也叫正态分布），在3个标准差范围内的分布比例占到99%的权重，因此我们只需要计算矩阵范围 [6 * stDev + 1, 6 * stDev +1] 上的权重
const float size = floor(stDev * 6.0 + 1.0);
const float halfSize = floor(size / 2.0);
// 步骤一：计算高斯矩阵上所有权重的和
// // v1：遍历所有点，每个点都计算权重
// float totalWeight = 0.0;
// for(float x = -halfSize; x<= halfSize; x++) {
// for (float y = -halfSize; y<= halfSize; y++) {
// totalWeight += getWeight(x, y);
// }
// }
// v2：因为高斯分布是对称的，所以只计算原点、X轴正方向 * 2 、Y轴正方向 * 2 、第一象限的权重 * 4即可求出所有权重之和，相比起v1版本，减少很多循环计算
// 原点
float totalWeight = getWeight(0.0, 0.0);
// X轴正方向上的权重 * 2.0 就是整个X轴上的权重
for(float x = 1.0; x <= halfSize; x++) {
totalWeight += getWeight(x, 0.0) * 2.0;
}
// Y轴正方向上的权重 * 2.0 就是整个Y轴上的权重
for(float y = 1.0; y <= halfSize; y++) {
totalWeight += getWeight(0.0, y) * 2.0;
}
// 第一象限的权重 * 4.0 就是4个象限的权重
for(float x = 1.0; x <= halfSize; x++) {
for (float y = 1.0; y<= halfSize; y++) {
totalWeight += getWeight(x, y) * 4.0;
}
}
// TODO:
//
// 因为权重矩阵是一次性计算即可不断应用，因此可以将权重矩阵的计算放到CPU计算，并传入到Shader直接渲染，因此有以下优化方案
//
// v3：原始权重矩阵在CPU计算并传入到Shader
// v4：加权平均后的权重矩阵在CPU计算并传入Shader
// 步骤二：采样周边像素并应用加权平均值，得出最终像素值
vec4 finalColor = vec4(0.0, 0.0, 0.0, 0.0);
// float divider = 0.01;
float onePxWidth = 1.0 / textureSize.x;
float onePxHeight = 1.0 / textureSize.y;
for(float x = -halfSize; x<= halfSize; x++) {
for (float y = -halfSize; y<= halfSize; y++) {
// 求出对应坐标的真正权重（对应权重矩阵）
float weight = getWeight(x, y) / totalWeight;
// 求出对应坐标像素颜色值的加权值
// finalColor += texture(texture, v_uv0 + vec2(divider * x, divider * y)) * weight;
finalColor += texture(texture, v_uv0 + vec2(onePxWidth * x, onePxHeight * y)) * weight;
}
}
gl_FragColor = finalColor;
#endif
}
}%

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assets/effects/sprite-gaussian-blur-v1.effect.meta Normal file
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{
"ver": "1.0.23",
"uuid": "41f4d474-d707-45bb-af93-637573f92d54",
"compiledShaders": [
{
"glsl1": {
"vert": "\nprecision highp float;\nuniform mat4 cc_matViewProj;\nuniform mat4 cc_matWorld;\n\nattribute vec3 a_position;\nattribute vec4 a_color;\nvarying vec4 v_color;\n\n#if USE_TEXTURE\nattribute vec2 a_uv0;\nvarying vec2 v_uv0;\n#endif\n\nvoid main () {\n vec4 pos = vec4(a_position, 1);\n\n #if CC_USE_MODEL\n pos = cc_matViewProj * cc_matWorld * pos;\n #else\n pos = cc_matViewProj * pos;\n #endif\n\n #if USE_TEXTURE\n v_uv0 = a_uv0;\n #endif\n\n v_color = a_color;\n\n gl_Position = pos;\n}\n",
"frag": "\nprecision highp float;\n\n#if USE_ALPHA_TEST\n \n uniform float alphaThreshold;\n#endif\n\nvoid ALPHA_TEST (in vec4 color) {\n #if USE_ALPHA_TEST\n if (color.a < alphaThreshold) discard;\n #endif\n}\n\nvoid ALPHA_TEST (in float alpha) {\n #if USE_ALPHA_TEST\n if (alpha < alphaThreshold) discard;\n #endif\n}\n\nvarying vec4 v_color;\n\n#if USE_TEXTURE\nvarying vec2 v_uv0;\nuniform sampler2D texture;\n#endif\n\n#if ENABLE_GAUSSIAN_BLUR\n\nuniform vec2 textureSize;\n/**\n * 获取权重(对应二维高斯函数公式，见 https:\n\n */\nfloat getWeight(float x, float y) {\n return (1.0 / (2.0 * 3.141592653589793 * pow(1.5, 2.0))) * pow(1.0 / 2.718281828459045, (pow(x, 2.0) + pow(y, 2.0)) / (2.0 * pow(1.5, 2.0)));\n}\n\n#endif\n\nvoid main () {\n vec4 o = vec4(1, 1, 1, 1);\n\n #if USE_TEXTURE\n o *= texture2D(texture, v_uv0);\n #if CC_USE_ALPHA_ATLAS_TEXTURE\n o.a *= texture2D(texture, v_uv0 + vec2(0, 0.5)).r;\n #endif\n #endif\n\n o *= v_color;\n\n ALPHA_TEST(o);\n\n gl_FragColor = o;\n #if ENABLE_GAUSSIAN_BLUR\n\n const float size = floor(1.5 * 6.0 + 1.0);\n const float halfSize = floor(size / 2.0);\n\n float totalWeight = getWeight(0.0, 0.0);\n\n for(float x = 1.0; x <= halfSize; x++) {\n totalWeight += getWeight(x, 0.0) * 2.0;\n }\n\n for(float y = 1.0; y <= halfSize; y++) {\n totalWeight += getWeight(0.0, y) * 2.0;\n }\n\n for(float x = 1.0; x <= halfSize; x++) {\n for (float y = 1.0; y<= halfSize; y++) {\n totalWeight += getWeight(x, y) * 4.0;\n }\n }\n\n vec4 finalColor = vec4(0.0, 0.0, 0.0, 0.0);\n\n float onePxWidth = 1.0 / textureSize.x;\n float onePxHeight = 1.0 / textureSize.y;\n for(float x = -halfSize; x<= halfSize; x++) {\n for (float y = -halfSize; y<= halfSize; y++) {\n\n float weight = getWeight(x, y) / totalWeight;\n\n finalColor += texture2D(texture, v_uv0 + vec2(onePxWidth * x, onePxHeight * y)) * weight;\n }\n }\n gl_FragColor = finalColor;\n #endif\n}\n"
},
"glsl3": {
"vert": "\nprecision highp float;\nuniform CCGlobal {\n vec4 cc_time;\n\n vec4 cc_screenSize;\n\n vec4 cc_screenScale;\n\n vec4 cc_nativeSize;\n\n mat4 cc_matView;\n mat4 cc_matViewInv;\n mat4 cc_matProj;\n mat4 cc_matProjInv;\n mat4 cc_matViewProj;\n mat4 cc_matViewProjInv;\n vec4 cc_cameraPos;\n\n vec4 cc_exposure;\n\n vec4 cc_mainLitDir;\n\n vec4 cc_mainLitColor;\n\n vec4 cc_ambientSky;\n vec4 cc_ambientGround;\n};\nuniform CCLocal {\n mat4 cc_matWorld;\n mat4 cc_matWorldIT;\n};\n\nin vec3 a_position;\nin vec4 a_color;\nout vec4 v_color;\n\n#if USE_TEXTURE\nin vec2 a_uv0;\nout vec2 v_uv0;\n#endif\n\nvoid main () {\n vec4 pos = vec4(a_position, 1);\n\n #if CC_USE_MODEL\n pos = cc_matViewProj * cc_matWorld * pos;\n #else\n pos = cc_matViewProj * pos;\n #endif\n\n #if USE_TEXTURE\n v_uv0 = a_uv0;\n #endif\n\n v_color = a_color;\n\n gl_Position = pos;\n}\n",
"frag": "\nprecision highp float;\n\n#if USE_ALPHA_TEST\n \n uniform ALPHA_TEST {\n float alphaThreshold;\n }\n#endif\n\nvoid ALPHA_TEST (in vec4 color) {\n #if USE_ALPHA_TEST\n if (color.a < alphaThreshold) discard;\n #endif\n}\n\nvoid ALPHA_TEST (in float alpha) {\n #if USE_ALPHA_TEST\n if (alpha < alphaThreshold) discard;\n #endif\n}\n\nin vec4 v_color;\n\n#if USE_TEXTURE\nin vec2 v_uv0;\nuniform sampler2D texture;\n#endif\n\n#if ENABLE_GAUSSIAN_BLUR\n\nuniform GaussianBlur {\n\n vec2 textureSize;\n\n}\n\n/**\n * 获取权重(对应二维高斯函数公式，见 https:\n\n */\nfloat getWeight(float x, float y) {\n return (1.0 / (2.0 * 3.141592653589793 * pow(1.5, 2.0))) * pow(1.0 / 2.718281828459045, (pow(x, 2.0) + pow(y, 2.0)) / (2.0 * pow(1.5, 2.0)));\n}\n\n#endif\n\nvoid main () {\n vec4 o = vec4(1, 1, 1, 1);\n\n #if USE_TEXTURE\n o *= texture(texture, v_uv0);\n #if CC_USE_ALPHA_ATLAS_TEXTURE\n o.a *= texture2D(texture, v_uv0 + vec2(0, 0.5)).r;\n #endif\n #endif\n\n o *= v_color;\n\n ALPHA_TEST(o);\n\n gl_FragColor = o;\n #if ENABLE_GAUSSIAN_BLUR\n\n const float size = floor(1.5 * 6.0 + 1.0);\n const float halfSize = floor(size / 2.0);\n\n float totalWeight = getWeight(0.0, 0.0);\n\n for(float x = 1.0; x <= halfSize; x++) {\n totalWeight += getWeight(x, 0.0) * 2.0;\n }\n\n for(float y = 1.0; y <= halfSize; y++) {\n totalWeight += getWeight(0.0, y) * 2.0;\n }\n\n for(float x = 1.0; x <= halfSize; x++) {\n for (float y = 1.0; y<= halfSize; y++) {\n totalWeight += getWeight(x, y) * 4.0;\n }\n }\n\n vec4 finalColor = vec4(0.0, 0.0, 0.0, 0.0);\n\n float onePxWidth = 1.0 / textureSize.x;\n float onePxHeight = 1.0 / textureSize.y;\n for(float x = -halfSize; x<= halfSize; x++) {\n for (float y = -halfSize; y<= halfSize; y++) {\n\n float weight = getWeight(x, y) / totalWeight;\n\n finalColor += texture(texture, v_uv0 + vec2(onePxWidth * x, onePxHeight * y)) * weight;\n }\n }\n gl_FragColor = finalColor;\n #endif\n}\n"
}
}
],
"subMetas": {}
}

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assets/materials/sprite-gaussian-blur-v1.mtl Normal file
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{
"__type__": "cc.Material",
"_name": "",
"_objFlags": 0,
"_native": "",
"_effectAsset": {
"__uuid__": "41f4d474-d707-45bb-af93-637573f92d54"
},
"_defines": {
"USE_TEXTURE": true,
"ENABLE_GAUSSIAN_BLUR": true
},
"_props": {}
}

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assets/materials/sprite-gaussian-blur-v1.mtl.meta Normal file
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{
"ver": "1.0.2",
"uuid": "dd3d8f78-9b79-4ca7-9bf7-7a09f7b34108",
"dataAsSubAsset": null,
"subMetas": {}
}

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assets/scenes/GaussianBlurV1EffectScene.fire Executable file
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assets/scenes/GaussianBlurV1EffectScene.fire.meta Normal file
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{
"ver": "1.2.5",
"uuid": "147d5b9f-b769-4112-9daf-2e28236161fa",
"asyncLoadAssets": false,
"autoReleaseAssets": false,
"subMetas": {}
}

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assets/scripts/GaussianBlurV1EffectScene.ts Normal file
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const { ccclass, property } = cc._decorator;
@ccclass
export default class GaussianBlurV1EffectScene extends cc.Component {
private _blurSlider: cc.Slider = null;
private _blurSliderLabel: cc.Label = null;
private _examplesParentNode: cc.Node = null;
onLoad() {
cc.dynamicAtlasManager.enabled = false;
this._blurSlider = cc.find("Canvas/Content/Controller/BlurSlider/Slider").getComponent(cc.Slider);
this._blurSliderLabel = cc.find("Canvas/Content/Controller/BlurSlider/ValueLabel").getComponent(cc.Label);
this._examplesParentNode = cc.find("Canvas/Content/Examples");
}
onEnable() {
this._blurSlider.node.on("slide", this._onSliderChanged, this);
}
onDisable() {
this._blurSlider.node.off("slide", this._onSliderChanged, this);
}
start() {
this._onSliderChanged();
}
private _onSliderChanged() {
this._blurSliderLabel.string = `${this._blurSlider.progress.toFixed(2)}`;
// 更新材质
this._updateRenderComponentMaterial({});
}
/**
* 更新渲染组件的材质
*
* 1. 获取材质
* 2. 给材质的 unitform 变量赋值
* 3. 重新将材质赋值回去
*/
private _updateRenderComponentMaterial(param: {}) {
this._examplesParentNode.children.forEach(childNode => {
childNode.getComponents(cc.RenderComponent).forEach(renderComponent => {
let material: cc.Material = renderComponent.getMaterial(0);
material.setProperty("textureSize", cc.v2(childNode.width, childNode.height));
renderComponent.setMaterial(0, material);
});
});
}
}

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assets/scripts/GaussianBlurV1EffectScene.ts.meta Normal file
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{
"ver": "1.0.5",
"uuid": "f460d8cf-51f7-4476-ba59-170dec68f562",
"isPlugin": false,
"loadPluginInWeb": true,
"loadPluginInNative": true,
"loadPluginInEditor": false,
"subMetas": {}
}

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assets/textures/gaussian_blur.png Normal file
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assets/textures/gaussian_blur.png.meta Normal file
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{
"ver": "2.3.3",
"uuid": "c879710d-0419-46be-bf96-92ee1ca52324",
"type": "sprite",
"wrapMode": "clamp",
"filterMode": "bilinear",
"premultiplyAlpha": false,
"genMipmaps": false,
"packable": true,
"platformSettings": {},
"subMetas": {
"gaussian_blur": {
"ver": "1.0.4",
"uuid": "91f28953-0d5f-4379-9ae6-f3f6afb3241c",
"rawTextureUuid": "c879710d-0419-46be-bf96-92ee1ca52324",
"trimType": "auto",
"trimThreshold": 1,
"rotated": false,
"offsetX": 0,
"offsetY": 0,
"trimX": 0,
"trimY": 0,
"width": 317,
"height": 178,
"rawWidth": 317,
"rawHeight": 178,
"borderTop": 0,
"borderBottom": 0,
"borderLeft": 0,
"borderRight": 0,
"subMetas": {}
}
}
}

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static/effects/2d-sprite-gaussian-blur-v1.png Normal file
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