stuff

modules/wallpaper-engine/shaders/shadowcaster.frag

@@ -0,0 +1,16 @@
+#if ALPHATOCOVERAGE
+uniform sampler2D g_Texture0; // {"material":"albedo"}
+
+varying vec2 v_TexCoord;
+#endif
+
+void main() {
+#if ALPHATOCOVERAGE
+	vec4 albedo = texSample2D(g_Texture0, v_TexCoord.xy);
+	albedo.a = (albedo.a - 0.5) / max(fwidth(albedo.a), 0.0001) + 0.5;
+	gl_FragColor = albedo;
+#if GLSL
+	if (gl_FragColor.a < 0.5) discard;
+#endif
+#endif
+}