cocos-awesome/assets/Scene/Photo_gallery/pic_transform.effect
ifengzp ca81a027d3 feat: 🎸 渐变过渡的相册
一个借助shader渐变的相册demo
2020-06-06 23:54:55 +08:00

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// Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
CCEffect %{
techniques:
- passes:
- vert: vs
frag: fs
blendState:
targets:
- blend: true
rasterizerState:
cullMode: none
properties:
texture: { value: white }
u_time: { value: 1.0 }
u_fade_radius: { value: 0.2 }
}%
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;
in vec4 v_color;
#if USE_TEXTURE
in vec2 v_uv0;
uniform sampler2D texture;
#endif
uniform ARGS {
float u_time;
float u_fade_radius;
};
void main () {
vec4 color = vec4(1, 1, 1, 1);
color *= texture(texture, v_uv0);
color *= v_color;
#if USE_TRAMSFORM
color.a = smoothstep(0.0, u_fade_radius, u_fade_radius + v_uv0.x - u_time);
#endif
gl_FragColor = color;
}
}%