scripts reorganize

scripts/hypr-shaders/crt.frag

@@ -0,0 +1,66 @@
+//modified version of [this shader](https://github.com/wessles/GLSL-CRT/blob/master/shader.frag)
+#version 300 es
+
+precision mediump float;
+in vec2 v_texcoord;
+uniform sampler2D tex;
+out vec4 FragColor;
+
+const vec3 VIB_RGB_BALANCE = vec3(1.0, 1.0, 1.0);
+const float VIB_VIBRANCE = 0.40;
+
+
+const vec3 VIB_coeffVibrance = VIB_RGB_BALANCE * -VIB_VIBRANCE;
+
+void main() {
+	vec2 tc = vec2(v_texcoord.x, v_texcoord.y);
+
+	// Distance from the center
+	float dx = abs(0.5-tc.x);
+	float dy = abs(0.5-tc.y);
+
+	// Square it to smooth the edges
+	dx *= dx;
+	dy *= dy;
+
+	tc.x -= 0.5;
+	tc.x *= 1.0 + (dy * 0.05);
+	tc.x += 0.5;
+
+	tc.y -= 0.5;
+	tc.y *= 1.0 + (dx * 0.18);
+	tc.y += 0.5;
+
+	// Get texel, and add in scanline if need be
+	vec4 cta = texture(tex, vec2(tc.x, tc.y));
+
+	cta.rgb += sin(tc.y * 1250.0) * 0.02;
+
+	// Cutoff
+	if(tc.y > 1.0 || tc.x < 0.0 || tc.x > 1.0 || tc.y < 0.0)
+		cta = vec4(0.0);
+
+
+    // RGB
+    vec3 color = vec3(cta[0], cta[1], cta[2]);
+
+
+    // vec3 VIB_coefLuma = vec3(0.333333, 0.333334, 0.333333); // was for `if VIB_LUMA == 1`
+    vec3 VIB_coefLuma = vec3(0.212656, 0.715158, 0.072186); // try both and see which one looks nicer.
+
+    float luma = dot(VIB_coefLuma, color);
+
+    float max_color = max(color[0], max(color[1], color[2]));
+    float min_color = min(color[0], min(color[1], color[2]));
+
+    float color_saturation = max_color - min_color;
+
+    vec3 p_col = vec3(vec3(vec3(vec3(sign(VIB_coeffVibrance) * color_saturation) - 1.0) * VIB_coeffVibrance) + 1.0);
+
+    cta[0] = mix(luma, color[0], p_col[0]);
+    cta[1] = mix(luma, color[1], p_col[1]);
+    cta[2] = mix(luma, color[2], p_col[2]);
+
+	// Apply
+	FragColor = cta;
+}