no message

data/shaders/crt-geom.frag

@@ -0,0 +1,23 @@
+#define distortion 0.08
+
+in vec2 texCoord;
+out vec4 fragColor;
+
+uniform sampler2D tex;
+
+vec2 radialDistortion(vec2 coord) {
+  vec2 cc = coord - vec2(0.5);
+  float dist = dot(cc, cc) * distortion;
+  return coord + cc * (1.0 - dist) * dist;
+}
+
+void main(void) {
+	vec4 rgba = texture2D(tex, radialDistortion(texCoord));
+
+	vec4 intensity = fract(gl_FragCoord.y * (0.5 * 4.0 / 3.0)) > 0.5 
+		? vec4(0) 
+		: smoothstep(0.2, 0.8, rgba) + normalize(rgba);
+	
+	fragColor = intensity * -0.25 + rgba * 1.1;
+
+}

data/shaders/crt-simple.frag

@@ -1,4 +1,3 @@
-in vec4 color;
 in vec2 texCoord;
 out vec4 fragColor;
 

src/system.c

@@ -1114,7 +1114,7 @@ static s32 start(s32 argc, char **argv, const char* folder)
 	GPU_Image* texture = GPU_CreateImage(TIC80_FULLWIDTH, TIC80_FULLHEIGHT, GPU_FORMAT_BGRA);
 
 	u32 crt_shader = 0;
-	GPU_ShaderBlock crt_block = load_shader_program(&crt_shader, "data/shaders/common.vert", "data/shaders/crt-simple.frag");
+	GPU_ShaderBlock crt_block = load_shader_program(&crt_shader, "data/shaders/common.vert", "data/shaders/crt-geom.frag");
 	GPU_ActivateShaderProgram(crt_shader, &crt_block);
 
 	{