2023-08-13 23:56:58 +08:00
|
|
|
#version 310 es
|
|
|
|
precision highp float;
|
|
|
|
precision highp int;
|
2019-11-23 20:27:39 +08:00
|
|
|
|
2023-08-13 23:56:58 +08:00
|
|
|
layout(location = COLOR0) in vec4 v_color;
|
|
|
|
layout(location = TEXCOORD0) in vec2 v_texCoord;
|
2019-11-23 20:27:39 +08:00
|
|
|
|
2023-08-13 23:56:58 +08:00
|
|
|
layout(binding = 0) uniform sampler2D u_tex0;
|
2019-11-23 20:27:39 +08:00
|
|
|
|
2023-08-13 23:56:58 +08:00
|
|
|
layout(std140) uniform fs_ub {
|
|
|
|
vec4 u_textColor;
|
|
|
|
};
|
2019-11-23 20:27:39 +08:00
|
|
|
|
2023-08-13 23:56:58 +08:00
|
|
|
layout(location = SV_Target0) out vec4 FragColor;
|
2019-11-23 20:27:39 +08:00
|
|
|
|
|
|
|
void main()
|
|
|
|
{
|
2023-08-13 23:56:58 +08:00
|
|
|
float dist = texture(u_tex0, v_texCoord).x;
|
|
|
|
#ifdef GLES2
|
2023-08-17 20:22:24 +08:00
|
|
|
float smoothing = 0.04;
|
2023-08-13 23:56:58 +08:00
|
|
|
#else
|
2023-08-17 20:22:24 +08:00
|
|
|
float smoothing = fwidth(dist); // ESSL300, GLSL330 support fwidth
|
2023-08-13 23:56:58 +08:00
|
|
|
#endif
|
2023-08-17 20:22:24 +08:00
|
|
|
float alpha = smoothstep(0.5 - smoothing, 0.5 + smoothing, dist) * u_textColor.a;
|
2023-08-13 23:56:58 +08:00
|
|
|
FragColor = v_color * vec4(u_textColor.rgb,alpha);
|
2019-11-23 20:27:39 +08:00
|
|
|
}
|