varying highp vec2 sampleCoord; | |
varying highp vec2 shiftedSampleCoord; | |
uniform mediump sampler2D _qt_texture; | |
uniform lowp vec4 color; | |
uniform lowp vec4 styleColor; | |
uniform mediump float alphaMin; | |
uniform mediump float alphaMax; | |
void main() | |
{ | |
highp float a = smoothstep(alphaMin, alphaMax, texture2D(_qt_texture, sampleCoord).a); | |
highp vec4 shifted = styleColor * smoothstep(alphaMin, | |
alphaMax, | |
texture2D(_qt_texture, shiftedSampleCoord).a); | |
gl_FragColor = mix(shifted, color, a); | |
} |