Test_Project_Cocos/CocosCreator-Shader-Effect-Demo
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Merge branch 'dev' into feature/gaussian_blur

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caizhitao
2020-01-20 22:05:50 +08:00
parent c047efb715 c2693616d0
commit c65106941e
21 changed files with 2276 additions and 543 deletions
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30
assets/effects/sprite-round-corner-crop.effect → assets/effects/sprite-round-corner-crop-v1.effect
View File

@@ -1,5 +1,7 @@
// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
// 圆角裁剪
//
// 圆角裁剪（仅支持正方形纹理）
//
// 原理：https://www.cnblogs.com/jqm304775992/p/4987793.html
// 代码：复制 yanjifa/shaderDemor 的 https://github.com/yanjifa/shaderDemo/blob/master/assets/Effect/CircleAvatar.effect
@@ -17,8 +19,8 @@ CCEffect %{
texture: { value: white }
alphaThreshold: { value: 0.5 }
# 圆角半径
roundCornerRadius: {
value: 0.1,
radius: {
value: 0.4,
inspector: {
tooltip: "圆角半径",
range: [0.0, 0.5]
@@ -77,7 +79,7 @@ CCProgram fs %{
#if ENABLE_ROUNDCORNER
uniform RoundCorner {
// 圆角半径
float roundCornerRadius;
float radius;
}
#endif
@@ -97,7 +99,7 @@ CCProgram fs %{
#if ENABLE_ROUNDCORNER
// 约束圆角半径范围在 [0.0, 0.5]
float radius = clamp(0.0, 0.5, roundCornerRadius);
float circleRadius = clamp(0.0, 0.5, radius);
// 将纹理uv往左上偏移，实现偏移后的坐标系原点在纹理中心
vec2 uv = v_uv0.xy - vec2(0.5, 0.5);
@@ -106,8 +108,8 @@ CCProgram fs %{
// abs(uv.x) , abs(uv.y) : 将第二、三、四象限的点都投影到第一象限上，这样子只需要处理第一象限的情况就可以，简化判断
// 0.5 - radius : 计算出第一象限的圆角所在圆的圆心坐标
// (rx, ry) : 偏移映射后的 新的uv 坐标，相对于 第一象限圆角坐在圆心坐标 的相对坐标
float rx = abs(uv.x) - (0.5 - radius);
float ry = abs(uv.y) - (0.5 - radius);
float rx = abs(uv.x) - (0.5 - circleRadius);
float ry = abs(uv.y) - (0.5 - circleRadius);
// 区分 以第一象限圆角所在圆心坐标为原点的坐标的四个象限
//
@@ -117,26 +119,26 @@ CCProgram fs %{
// 第四象限 mx = 1, my = 0
//
// 当 mx * my 时，只要等于1，那就是标识第一象限（实际对应圆角区域所在矩形），否则就是第二、三、四象限
float mx = step(0.5 - radius, abs(uv.x));
float my = step(0.5 - radius, abs(uv.y));
float mx = step(0.5 - circleRadius, abs(uv.x));
float my = step(0.5 - circleRadius, abs(uv.y));
// 计算相对uv坐标到圆心的距离
float len = length(vec2(rx, ry));
// mx * my = 0 时，代表非圆角区域，a 值为1，代表完全采用原始纹理的透明度
// mx * my = 1 时，代表园所所在矩形区域
// step(radius, len) 可以区分出圆角所在矩形区域的 圆角区域 和 非圆角区域
// step(circleRadius, len) 可以区分出圆角所在矩形区域的 圆角区域 和 非圆角区域
// 其中圆角区域值为0，非圆角区域值为1
// 当为圆角区域时，a 值为1，代表完全采用原始纹理透明度
// 当为非圆角区域时，a 值为0，代表完全透明
// 至此已经实现圆角裁剪
//
// smoothstep(0., radius * 0.01, len - radius) 是用于抗锯齿优化
// smoothstep(0., circleRadius * 0.01, len - circleRadius) 是用于抗锯齿优化
// 原理：针对点在非圆角区域的情况，针对点在大于「圆半径一点点」地方的区域，进行平滑过渡，以实现抗锯齿
// 其中，
// 「圆半径一点点」用 radius * 0.01 表示（0.01 可自行改变）
// 点在大于圆半径的区域用 len - radius ，此值会在 [0.0, radius * 0.01] 之间时会平滑过渡
float a = 1.0 - mx * my * step(radius, len) * smoothstep(0., radius * 0.01, len - radius);
// 「圆半径一点点」用 circleRadius * 0.01 表示（0.01 可自行改变）
// 点在大于圆半径的区域用 len - circleRadius ，此值会在 [0.0, circleRadius * 0.01] 之间时会平滑过渡
float a = 1.0 - mx * my * step(circleRadius, len) * smoothstep(0., circleRadius * 0.01, len - circleRadius);
o = vec4(o.rgb, o.a * a);
#endif
gl_FragColor = o;

4
assets/effects/sprite-round-corner-crop.effect.meta → assets/effects/sprite-round-corner-crop-v1.effect.meta
View File

@@ -5,11 +5,11 @@
{
"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_ROUNDCORNER\nuniform float roundCornerRadius;\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 #if ENABLE_ROUNDCORNER\n\n float radius = clamp(0.0, 0.5, roundCornerRadius);\n\n vec2 uv = v_uv0.xy - vec2(0.5, 0.5);\n\n float rx = abs(uv.x) - (0.5 - radius);\n float ry = abs(uv.y) - (0.5 - radius);\n\n float mx = step(0.5 - radius, abs(uv.x));\n float my = step(0.5 - radius, abs(uv.y));\n\n float len = length(vec2(rx, ry));\n\n float a = 1.0 - mx * my * step(radius, len) * smoothstep(0., radius * 0.01, len - radius);\n o = vec4(o.rgb, o.a * a);\n #endif\n gl_FragColor = o;\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_ROUNDCORNER\nuniform float radius;\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 #if ENABLE_ROUNDCORNER\n\n float circleRadius = clamp(0.0, 0.5, radius);\n\n vec2 uv = v_uv0.xy - vec2(0.5, 0.5);\n\n float rx = abs(uv.x) - (0.5 - circleRadius);\n float ry = abs(uv.y) - (0.5 - circleRadius);\n\n float mx = step(0.5 - circleRadius, abs(uv.x));\n float my = step(0.5 - circleRadius, abs(uv.y));\n\n float len = length(vec2(rx, ry));\n\n float a = 1.0 - mx * my * step(circleRadius, len) * smoothstep(0., circleRadius * 0.01, len - circleRadius);\n o = vec4(o.rgb, o.a * a);\n #endif\n gl_FragColor = o;\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_ROUNDCORNER\nuniform RoundCorner {\n\n float roundCornerRadius;\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 #if ENABLE_ROUNDCORNER\n\n float radius = clamp(0.0, 0.5, roundCornerRadius);\n\n vec2 uv = v_uv0.xy - vec2(0.5, 0.5);\n\n float rx = abs(uv.x) - (0.5 - radius);\n float ry = abs(uv.y) - (0.5 - radius);\n\n float mx = step(0.5 - radius, abs(uv.x));\n float my = step(0.5 - radius, abs(uv.y));\n\n float len = length(vec2(rx, ry));\n\n float a = 1.0 - mx * my * step(radius, len) * smoothstep(0., radius * 0.01, len - radius);\n o = vec4(o.rgb, o.a * a);\n #endif\n gl_FragColor = o;\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_ROUNDCORNER\nuniform RoundCorner {\n\n float radius;\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 #if ENABLE_ROUNDCORNER\n\n float circleRadius = clamp(0.0, 0.5, radius);\n\n vec2 uv = v_uv0.xy - vec2(0.5, 0.5);\n\n float rx = abs(uv.x) - (0.5 - circleRadius);\n float ry = abs(uv.y) - (0.5 - circleRadius);\n\n float mx = step(0.5 - circleRadius, abs(uv.x));\n float my = step(0.5 - circleRadius, abs(uv.y));\n\n float len = length(vec2(rx, ry));\n\n float a = 1.0 - mx * my * step(circleRadius, len) * smoothstep(0., circleRadius * 0.01, len - circleRadius);\n o = vec4(o.rgb, o.a * a);\n #endif\n gl_FragColor = o;\n}\n"
}
}
],

194
assets/effects/sprite-round-corner-crop-v2.effect Normal file
View File

@@ -0,0 +1,194 @@
// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
//
// 圆角裁剪（支持任意宽高纹理）
//
// 原理：
// 1. 正方形纹理的圆角原理参考 https://www.cnblogs.com/jqm304775992/p/4987793.html
// 2. 正方形纹理的圆角代码参考 yanjifa/shaderDemor 的 https://github.com/yanjifa/shaderDemo/blob/master/assets/Effect/CircleAvatar.effect
// 3. 上述皆为只针对正方形纹理做的操作，如果是长方形的纹理，那么圆角就会有拉伸后的效果，最后变成看起来就不是圆角了，本特效支持任意长方形做圆角
CCEffect %{
techniques:
- passes:
- vert: vs
frag: fs
blendState:
targets:
- blend: true
rasterizerState:
cullMode: none
properties:
texture: { value: white }
alphaThreshold: { value: 0.5 }
# 圆角x轴半径长度（相对于纹理宽度）
xRadius: {
value: 0.4,
inspector: {
tooltip: "圆角x轴半径长度（相对于纹理宽度）",
range: [0.0, 0.5]
}
}
# 圆角y轴半径长度（相对于纹理高度）
yRadius: {
value: 0.4,
inspector: {
tooltip: "圆角y轴半径长度（相对于纹理高度）",
range: [0.0, 0.5]
}
}
}%
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_ROUNDCORNER
uniform RoundCorner {
// 圆角x轴半径长度（相对于纹理宽度）
float xRadius;
// 圆角y轴半径长度（相对于纹理高度）
float yRadius;
}
#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);
#if ENABLE_ROUNDCORNER
// 约束圆角半径范围在 [0.0, 0.5]
//
// 请注意这里我是用椭圆前缀去命名的半径
//
// 为什么是椭圆？
//
// 因为圆角，相对于长方形的纹理的宽高来说，归一化后值并不一样，不是圆，而是一个椭圆
//
// 比如：
//
// 纹理是 200 x 100 的像素，圆角半径是20像素，那么归一化后
// X轴上的半径就是 20 / 200 = 0.1
// Y轴上的半径就是 20 / 100 = 0.2
//
// 这就会变成是椭圆，而不是圆
float ellipseXRadius = clamp(0.0, 0.5, xRadius);
float ellipseYRadius = clamp(0.0, 0.5, yRadius);
// 将纹理uv往左上偏移，实现偏移后的坐标系原点在纹理中心
vec2 uv = v_uv0.xy - vec2(0.5, 0.5);
// uv.x , uv.y : 为偏移后的的uv
// abs(uv.x) , abs(uv.y) : 将第二、三、四象限的点都投影到第一象限上，这样子只需要处理第一象限的情况就可以，简化判断
// 0.5 - radius : 计算出第一象限的圆角所在圆的圆心坐标
// (rx, ry) : 偏移映射后的 新的uv 坐标，相对于 第一象限圆角坐在圆心坐标 的相对坐标
float rx = abs(uv.x) - (0.5 - ellipseXRadius);
float ry = abs(uv.y) - (0.5 - ellipseYRadius);
// 区分 以第一象限圆角所在圆心坐标为原点的坐标的四个象限
//
// 第一象限 mx = 1, my = 1
// 第二象限 mx = 0, my = 1
// 第三象限 mx = 0, my = 0
// 第四象限 mx = 1, my = 0
//
// 当 mx * my 时，只要等于1，那就是标识第一象限（实际对应圆角区域所在矩形），否则就是第二、三、四象限
float mx = step(0.5 - ellipseXRadius, abs(uv.x));
float my = step(0.5 - ellipseYRadius, abs(uv.y));
// 判断点(rx, ry)是否在椭圆外部（应用椭圆公式）
float isOutOfEllipse = step(1.0, pow(rx, 2.0) / pow(xRadius, 2.0) + pow(ry, 2.0) / pow(yRadius, 2.0));
///////////////////////////////////////////////////////////////////////////////////////////
// 抗锯齿
// 1. 先计算当前点到椭圆中心的角度
float angleInRadian = atan(ry / rx);
// 2. 计算这个角度下，对于对应圆角（椭圆）上的点
vec2 pointInEllipse = vec2(xRadius * cos(angleInRadian), yRadius * sin(angleInRadian));
// 3. 计算这个角度下，比当前圆角大一点椭圆上的点
vec2 pointInBigEllipse = vec2((xRadius * 1.01) * cos(angleInRadian), (yRadius * 1.01)* sin(angleInRadian));
// 4. 计算最远点到当前椭圆的距离
float maxDis = distance(pointInBigEllipse, pointInEllipse);
// 5. 计算当前点到当前椭圆的距离
float curDis = distance(vec2(rx, ry), pointInEllipse);
// 6. 生成插值
float smo = smoothstep(0.0, maxDis, curDis);
///////////////////////////////////////////////////////////////////////////////////////////
// mx * my = 0 时，代表非椭圆角区域，alpha 值为1，代表完全采用原始纹理的透明度
// mx * my = 1 时，代表椭圆角所在矩形区域
// isOutOfEllipse:
// 当点在椭圆外部时，此值为1，导致 alpha 最终值为0.0，即表示不显示椭圆外部的像素
// 当点在椭圆内部时，此值为0，导致 alpha 最终值为1.0，即表示显示椭圆内部的像素
// smo : 抗锯齿实现
// float alpha = 1.0 - mx * my * isOutOfEllipse;
float alpha = 1.0 - mx * my * isOutOfEllipse * smo;
o = vec4(o.rgb, o.a * alpha);
#endif
gl_FragColor = o;
}
}%

17
assets/effects/sprite-round-corner-crop-v2.effect.meta Normal file
View File

@@ -0,0 +1,17 @@
{
"ver": "1.0.23",
"uuid": "7c24b57e-e819-4fc9-a8d2-b06cf61b782d",
"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_ROUNDCORNER\nuniform float xRadius;\nuniform float yRadius;\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 #if ENABLE_ROUNDCORNER\n\n float ellipseXRadius = clamp(0.0, 0.5, xRadius);\n float ellipseYRadius = clamp(0.0, 0.5, yRadius);\n\n vec2 uv = v_uv0.xy - vec2(0.5, 0.5);\n\n float rx = abs(uv.x) - (0.5 - ellipseXRadius);\n float ry = abs(uv.y) - (0.5 - ellipseYRadius);\n\n float mx = step(0.5 - ellipseXRadius, abs(uv.x));\n float my = step(0.5 - ellipseYRadius, abs(uv.y));\n\n float isOutOfEllipse = step(1.0, pow(rx, 2.0) / pow(xRadius, 2.0) + pow(ry, 2.0) / pow(yRadius, 2.0));\n\n float angleInRadian = atan(ry / rx);\n\n vec2 pointInEllipse = vec2(xRadius * cos(angleInRadian), yRadius * sin(angleInRadian));\n\n vec2 pointInBigEllipse = vec2((xRadius * 1.01) * cos(angleInRadian), (yRadius * 1.01)* sin(angleInRadian));\n\n float maxDis = distance(pointInBigEllipse, pointInEllipse);\n\n float curDis = distance(vec2(rx, ry), pointInEllipse);\n\n float smo = smoothstep(0.0, maxDis, curDis);\n\n float alpha = 1.0 - mx * my * isOutOfEllipse * smo;\n\n o = vec4(o.rgb, o.a * alpha);\n\n #endif\n gl_FragColor = o;\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_ROUNDCORNER\nuniform RoundCorner {\n\n float xRadius;\n\n float yRadius;\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 #if ENABLE_ROUNDCORNER\n\n float ellipseXRadius = clamp(0.0, 0.5, xRadius);\n float ellipseYRadius = clamp(0.0, 0.5, yRadius);\n\n vec2 uv = v_uv0.xy - vec2(0.5, 0.5);\n\n float rx = abs(uv.x) - (0.5 - ellipseXRadius);\n float ry = abs(uv.y) - (0.5 - ellipseYRadius);\n\n float mx = step(0.5 - ellipseXRadius, abs(uv.x));\n float my = step(0.5 - ellipseYRadius, abs(uv.y));\n\n float isOutOfEllipse = step(1.0, pow(rx, 2.0) / pow(xRadius, 2.0) + pow(ry, 2.0) / pow(yRadius, 2.0));\n\n float angleInRadian = atan(ry / rx);\n\n vec2 pointInEllipse = vec2(xRadius * cos(angleInRadian), yRadius * sin(angleInRadian));\n\n vec2 pointInBigEllipse = vec2((xRadius * 1.01) * cos(angleInRadian), (yRadius * 1.01)* sin(angleInRadian));\n\n float maxDis = distance(pointInBigEllipse, pointInEllipse);\n\n float curDis = distance(vec2(rx, ry), pointInEllipse);\n\n float smo = smoothstep(0.0, maxDis, curDis);\n\n float alpha = 1.0 - mx * my * isOutOfEllipse * smo;\n\n o = vec4(o.rgb, o.a * alpha);\n\n #endif\n gl_FragColor = o;\n}\n"
}
}
],
"subMetas": {}
}