Files
loop/shader/circle.frag
T

20 lines
543 B
GLSL

#version 430 core
in vec4 gColor;
in vec2 cenPosT;
in float gRad;
out vec4 fColor;
out float gl_FragDepth;
uniform vec2 winSize;
void main()
{
vec2 pos = gl_FragCoord.xy;
// fColor = vec4( gColor.xyz , 0 );
// fColor = vec4( gColor.xyz , 1 - step(distance(pos,cenPos.xy),gRad) );
// fColor = vec4( gColor.xyz , distance(pos,cenPos.xy)/gRad );
fColor = vec4( gColor.rgb, gColor.a * (1-step(gRad/2,distance(pos,cenPosT))) );
gl_FragDepth = max(gl_FragCoord.z , step(gRad/2,distance(pos,cenPosT)));
//fColor = vec4( 0.5,0,0 , 1 );
}