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2022-09-19 18:05:01 +08:00
commit 57051fc44b
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precision mediump float;
varying vec2 vTextureCoord; //接收从顶点着色器过来的参数
uniform sampler2D sTexture;//纹理内容数据
uniform int uisButtonDown;//按钮是否按下,如果按下,改变其不透明度
void main()
{
//给此片元从纹理中采样出颜色值
vec4 finalColor = texture2D(sTexture, vTextureCoord);
if(uisButtonDown==1)//当前按钮按下
{
gl_FragColor=finalColor*0.5;
}
else
{
gl_FragColor=finalColor;
}
}