1 files changed, 35 insertions, 0 deletions
diff --git a/shaders/sdf.frag b/shaders/sdf.frag
new file mode 100644
index 0000000..c341476
--- /dev/null
+++ b/shaders/sdf.frag
@@ -0,0 +1,35 @@
+#version 450
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+layout (binding = 1) uniform sampler2D samplerColor;
+
+layout (location = 0) in vec2 inUV;
+
+layout (location = 0) out vec4 outFragColor;
+
+const vec3 textColor = vec3(0.2,0.2,0.8);
+const vec3 outlineColor = vec3(0.9,0.9,0.9);
+const float outlineWidth = 0.0;
+
+void main()
+{
+	float dist = texture(samplerColor, inUV).a;
+	float smoothWidth = fwidth(dist);
+	float alpha = smoothstep(0.5 - smoothWidth, 0.5 + smoothWidth, dist);
+	if (alpha < 0.001)
+		discard;
+
+	vec3 rgb = vec3(alpha);
+
+	/*if (outlineWidth > 0.0)
+	{
+		float w = 1.0 - outlineWidth;
+		alpha = smoothstep(w - smoothWidth, w + smoothWidth, distance);
+		rgb += mix(vec3(alpha), outlineColor.rgb, alpha);
+	}*/
+
+	outFragColor = vec4(rgb, alpha);
+
+}