Test_Project_Cocos/CocosCreator-Shader-Effect-Demo
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优化demo

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caizhitao
2020-01-12 00:35:56 +08:00
parent 7e197c0892
commit ba90b2170c
6 changed files with 718 additions and 125 deletions
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30
assets/effects/sprite-local-diffusion.effect
View File

@@ -3,7 +3,7 @@
// 原理：
// 1. 画圆
// 2. 圆心高亮（透明度=1.0），圆边缘不亮（透明度=0.0）
// 3. 在原图像上方叠加圆
// 4. 在原图像上方叠加圆
CCEffect %{
techniques:
@@ -21,7 +21,7 @@ CCEffect %{
# 扩散颜色
centerColor: {
value: [1.0, 0.0, 0.0, 1.0],
value: [1.0, 1.0, 0.0, 1.0],
inspector: {
type: color,
tooltip: "发光颜色"
@@ -30,7 +30,7 @@ CCEffect %{
# 扩散起点坐标
centerPoint: {
value: [0.5, 0.5],
value: [0.2, 0.2],
inspector: {
tooltip: "扩散起点坐标"
}
@@ -38,7 +38,7 @@ CCEffect %{
# 扩散半径
radius: {
value: 0.2,
value: 0.4,
inspector: {
tooltip: "扩散半径"
}
@@ -98,15 +98,15 @@ CCProgram fs %{
// 扩散颜色
vec4 centerColor;
// // 因为现在cc不支持 vec2 数组，所以只能用 vec4 数组
// // 而一个 vec4 就包含两个 vec2 ，共计 4 个属性，所以如果数组是4，就表示有8个点了
// vec4 points[4];
// 扩散起点坐标
vec2 centerPoint;
// 扩展半径
float radius;
// 裁剪掉透明区域上的点光
// ps：编辑器还不支持 bool 类型的样子，因此没在 CCEffect 中定义 cropAlpha
bool cropAlpha;
}
/**
@@ -116,13 +116,15 @@ CCProgram fs %{
// 计算当前 uv 到扩散起点的距离
float dis = distance(v_uv0, centerPoint);
// 第一步裁剪
// 找出扩散范围，扩散范围为1.0透明度，其他范围为0.0透明度
float a = step(dis, radius);
float a = 1.0 ;
// // 第二步裁剪
// // 本来透明的uv不要
// a *= step(0.01, textureColor.a);
// 裁剪掉透明区域上的点光
if (cropAlpha) {
a *= step(0.01, textureColor.a);
}
// 裁剪掉扩散范围外的uv
// a *= step(dis, radius);
// 加入从中心往外渐变的效果
a *= 1.0 - (dis / radius);

4
assets/effects/sprite-local-diffusion.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_DIFFUSION\nuniform vec4 centerColor;\nuniform vec2 centerPoint;\nuniform float radius;\n/**\n * 添加某个扩散点后混合后的纹理颜色\n */\nvec4 addDiffusionColor(vec4 textureColor, vec2 centerPoint, float radius, vec4 centerColor) {\n\n float dis = distance(v_uv0, centerPoint);\n\n float a = step(dis, radius);\n\n a *= 1.0 - (dis / radius);\n\n vec4 diffusionColor = centerColor * a;\n\n return textureColor * textureColor.a + diffusionColor;\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 \n #if ENABLE_DIFFUSION\n gl_FragColor = addDiffusionColor(gl_FragColor, centerPoint, radius, centerColor);\n #endif\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_DIFFUSION\nuniform vec4 centerColor;\nuniform vec2 centerPoint;\nuniform float radius;\nuniform bool cropAlpha;\n/**\n * 添加某个扩散点后混合后的纹理颜色\n */\nvec4 addDiffusionColor(vec4 textureColor, vec2 centerPoint, float radius, vec4 centerColor) {\n\n float dis = distance(v_uv0, centerPoint);\n\n float a = 1.0 ;\n\n if (cropAlpha) {\n a *= step(0.01, textureColor.a);\n }\n\n a *= 1.0 - (dis / radius);\n\n vec4 diffusionColor = centerColor * a;\n\n return textureColor * textureColor.a + diffusionColor;\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 \n #if ENABLE_DIFFUSION\n gl_FragColor = addDiffusionColor(gl_FragColor, centerPoint, radius, centerColor);\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_DIFFUSION\nuniform Diffusion {\n\n vec4 centerColor;\n\n vec2 centerPoint;\n\n float radius;\n}\n\n/**\n * 添加某个扩散点后混合后的纹理颜色\n */\nvec4 addDiffusionColor(vec4 textureColor, vec2 centerPoint, float radius, vec4 centerColor) {\n\n float dis = distance(v_uv0, centerPoint);\n\n float a = step(dis, radius);\n\n a *= 1.0 - (dis / radius);\n\n vec4 diffusionColor = centerColor * a;\n\n return textureColor * textureColor.a + diffusionColor;\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 \n #if ENABLE_DIFFUSION\n gl_FragColor = addDiffusionColor(gl_FragColor, centerPoint, radius, centerColor);\n #endif\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_DIFFUSION\nuniform Diffusion {\n\n vec4 centerColor;\n\n vec2 centerPoint;\n\n float radius;\n\n bool cropAlpha;\n}\n\n/**\n * 添加某个扩散点后混合后的纹理颜色\n */\nvec4 addDiffusionColor(vec4 textureColor, vec2 centerPoint, float radius, vec4 centerColor) {\n\n float dis = distance(v_uv0, centerPoint);\n\n float a = 1.0 ;\n\n if (cropAlpha) {\n a *= step(0.01, textureColor.a);\n }\n\n a *= 1.0 - (dis / radius);\n\n vec4 diffusionColor = centerColor * a;\n\n return textureColor * textureColor.a + diffusionColor;\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 \n #if ENABLE_DIFFUSION\n gl_FragColor = addDiffusionColor(gl_FragColor, centerPoint, radius, centerColor);\n #endif\n}\n"
}
}
],