mirror of https://github.com/axmolengine/axmol.git
27 lines
619 B
GLSL
27 lines
619 B
GLSL
#version 310 es
|
|
precision highp float;
|
|
precision highp int;
|
|
|
|
layout(location = COLOR0) in vec4 v_color;
|
|
layout(location = TEXCOORD0) in vec2 v_texCoord;
|
|
|
|
layout(binding = 0) uniform sampler2D u_tex0;
|
|
|
|
layout(std140) uniform fs_ub {
|
|
vec4 u_textColor;
|
|
};
|
|
|
|
layout(location = SV_Target0) out vec4 FragColor;
|
|
|
|
void main()
|
|
{
|
|
float dist = texture(u_tex0, v_texCoord).x;
|
|
#ifdef GLES2
|
|
float width = 0.04;
|
|
#else
|
|
float width = fwidth(dist); // ESSL300, GLSL330 support fwidth
|
|
#endif
|
|
float alpha = smoothstep(0.5-width, 0.5+width, dist) * u_textColor.a;
|
|
FragColor = v_color * vec4(u_textColor.rgb,alpha);
|
|
}
|