Test_Project_Cocos/CocosCreator-Shader-Effect-Demo
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光束宽度边界值处理

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This commit is contained in:
caizhitao 2020-01-13 22:11:20 +08:00
parent acf72e0e4f
commit e7e084b958
4 changed files with 12 additions and 6 deletions
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10
assets/effects/sprite-flash-light.effect
View File

@ -35,6 +35,7 @@ CCEffect %{
tooltip: "光束中心点坐标"
}
}
# 光束倾斜角度
lightAngle: {
value: 36.0,
@ -125,7 +126,7 @@ CCProgram fs %{
uniform sampler2D texture;
#endif
#if ENABLE_DIFFUSION
#if ENABLE_LIGHT
uniform Light {
// 光束颜色
vec4 lightColor;
@ -156,6 +157,11 @@ CCProgram fs %{
* 添加光束颜色
*/
vec4 addLightColor(vec4 textureColor, vec4 lightColor, vec2 lightCenterPoint, float lightAngle, float lightWidth) {
// 边界值处理，没有宽度就返回原始颜色
if (lightWidth <= 0.0) {
return textureColor;
}
// 计算当前 uv 到 光束 的距离
float angleInRadians = radians(lightAngle);
@ -222,7 +228,7 @@ CCProgram fs %{
gl_FragColor = o;
#if ENABLE_DIFFUSION
#if ENABLE_LIGHT
gl_FragColor = addLightColor(gl_FragColor, lightColor, lightCenterPoint, lightAngle, lightWidth);
#endif
}

4
assets/effects/sprite-flash-light.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 lightColor;\nuniform vec2 lightCenterPoint;\nuniform float lightAngle;\nuniform float lightWidth;\nuniform float enableGradient;\nuniform float cropAlpha;\nuniform float enableFog;\n/**\n * 添加光束颜色\n */\nvec4 addLightColor(vec4 textureColor, vec4 lightColor, vec2 lightCenterPoint, float lightAngle, float lightWidth) {\n\n float angleInRadians = radians(lightAngle);\n\n float dis = 0.0;\n if (mod(lightAngle, 180.0) != 0.0) {\n\n float lightOffsetX = lightCenterPoint.x - ((1.0 - lightCenterPoint.y) / tan(angleInRadians));\n\n float dx = lightOffsetX + (1.0 - v_uv0.y) / tan(angleInRadians);\n\n float offsetDis = abs(v_uv0.x - dx);\n\n dis = sin(angleInRadians) * offsetDis;\n } else {\n dis = abs(v_uv0.y - lightCenterPoint.y);\n }\n \n float a = 1.0 ;\n\n if (bool(cropAlpha)) {\n a *= step(0.01, textureColor.a);\n }\n\n if (!bool(enableFog)) {\n a *= step(dis, lightWidth * 0.5);\n }\n\n if (bool(enableGradient)) {\n a *= 1.0 - dis / (lightWidth * 0.5);\n }\n\n vec4 finalLightColor = lightColor * a;\n\n return textureColor * textureColor.a + finalLightColor;\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 = addLightColor(gl_FragColor, lightColor, lightCenterPoint, lightAngle, lightWidth);\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_LIGHT\nuniform vec4 lightColor;\nuniform vec2 lightCenterPoint;\nuniform float lightAngle;\nuniform float lightWidth;\nuniform float enableGradient;\nuniform float cropAlpha;\nuniform float enableFog;\n/**\n * 添加光束颜色\n */\nvec4 addLightColor(vec4 textureColor, vec4 lightColor, vec2 lightCenterPoint, float lightAngle, float lightWidth) {\n\n if (lightWidth <= 0.0) {\n return textureColor;\n }\n\n float angleInRadians = radians(lightAngle);\n\n float dis = 0.0;\n if (mod(lightAngle, 180.0) != 0.0) {\n\n float lightOffsetX = lightCenterPoint.x - ((1.0 - lightCenterPoint.y) / tan(angleInRadians));\n\n float dx = lightOffsetX + (1.0 - v_uv0.y) / tan(angleInRadians);\n\n float offsetDis = abs(v_uv0.x - dx);\n\n dis = sin(angleInRadians) * offsetDis;\n } else {\n dis = abs(v_uv0.y - lightCenterPoint.y);\n }\n \n float a = 1.0 ;\n\n if (bool(cropAlpha)) {\n a *= step(0.01, textureColor.a);\n }\n\n if (!bool(enableFog)) {\n a *= step(dis, lightWidth * 0.5);\n }\n\n if (bool(enableGradient)) {\n a *= 1.0 - dis / (lightWidth * 0.5);\n }\n\n vec4 finalLightColor = lightColor * a;\n\n return textureColor * textureColor.a + finalLightColor;\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_LIGHT\n gl_FragColor = addLightColor(gl_FragColor, lightColor, lightCenterPoint, lightAngle, lightWidth);\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 Light {\n\n vec4 lightColor;\n\n vec2 lightCenterPoint;\n\n float lightAngle;\n\n float lightWidth;\n\n float enableGradient;\n\n float cropAlpha;\n\n float enableFog;\n}\n\n/**\n * 添加光束颜色\n */\nvec4 addLightColor(vec4 textureColor, vec4 lightColor, vec2 lightCenterPoint, float lightAngle, float lightWidth) {\n\n float angleInRadians = radians(lightAngle);\n\n float dis = 0.0;\n if (mod(lightAngle, 180.0) != 0.0) {\n\n float lightOffsetX = lightCenterPoint.x - ((1.0 - lightCenterPoint.y) / tan(angleInRadians));\n\n float dx = lightOffsetX + (1.0 - v_uv0.y) / tan(angleInRadians);\n\n float offsetDis = abs(v_uv0.x - dx);\n\n dis = sin(angleInRadians) * offsetDis;\n } else {\n dis = abs(v_uv0.y - lightCenterPoint.y);\n }\n \n float a = 1.0 ;\n\n if (bool(cropAlpha)) {\n a *= step(0.01, textureColor.a);\n }\n\n if (!bool(enableFog)) {\n a *= step(dis, lightWidth * 0.5);\n }\n\n if (bool(enableGradient)) {\n a *= 1.0 - dis / (lightWidth * 0.5);\n }\n\n vec4 finalLightColor = lightColor * a;\n\n return textureColor * textureColor.a + finalLightColor;\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 = addLightColor(gl_FragColor, lightColor, lightCenterPoint, lightAngle, lightWidth);\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_LIGHT\nuniform Light {\n\n vec4 lightColor;\n\n vec2 lightCenterPoint;\n\n float lightAngle;\n\n float lightWidth;\n\n float enableGradient;\n\n float cropAlpha;\n\n float enableFog;\n}\n\n/**\n * 添加光束颜色\n */\nvec4 addLightColor(vec4 textureColor, vec4 lightColor, vec2 lightCenterPoint, float lightAngle, float lightWidth) {\n\n if (lightWidth <= 0.0) {\n return textureColor;\n }\n\n float angleInRadians = radians(lightAngle);\n\n float dis = 0.0;\n if (mod(lightAngle, 180.0) != 0.0) {\n\n float lightOffsetX = lightCenterPoint.x - ((1.0 - lightCenterPoint.y) / tan(angleInRadians));\n\n float dx = lightOffsetX + (1.0 - v_uv0.y) / tan(angleInRadians);\n\n float offsetDis = abs(v_uv0.x - dx);\n\n dis = sin(angleInRadians) * offsetDis;\n } else {\n dis = abs(v_uv0.y - lightCenterPoint.y);\n }\n \n float a = 1.0 ;\n\n if (bool(cropAlpha)) {\n a *= step(0.01, textureColor.a);\n }\n\n if (!bool(enableFog)) {\n a *= step(dis, lightWidth * 0.5);\n }\n\n if (bool(enableGradient)) {\n a *= 1.0 - dis / (lightWidth * 0.5);\n }\n\n vec4 finalLightColor = lightColor * a;\n\n return textureColor * textureColor.a + finalLightColor;\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_LIGHT\n gl_FragColor = addLightColor(gl_FragColor, lightColor, lightCenterPoint, lightAngle, lightWidth);\n #endif\n}\n"
}
}
],

2
assets/materials/sprite-flash-light.mtl
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@ -8,7 +8,7 @@
},
"_defines": {
"USE_TEXTURE": true,
"ENABLE_DIFFUSION": true
"ENABLE_LIGHT": true
},
"_props": {
"lightColor": {

2
assets/scenes/FlashLightEffectScene.fire
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@ -171,7 +171,7 @@
"array": [
0,
0,
418.2902700278839,
351.60631393648214,
0,
0,
0,