init

shaders/effect_anim.gdshader

@@ -0,0 +1,24 @@
+shader_type canvas_item;
+render_mode blend_premul_alpha;
+
+uniform float frame_index : hint_range(0.0, 1024.0) = 0.0;
+uniform float frame_count : hint_range(1.0, 1024.0) = 5.0;
+
+void fragment() {
+	float frame_width = 1.0 / frame_count;
+	float frame_u = frame_index * frame_width;
+	vec2 uv = UV;
+	uv.x = uv.x * frame_width + frame_u;
+
+	vec4 color = texture(TEXTURE, uv) * COLOR;
+
+	float luma = dot(color.rgb, vec3(0.299, 0.587, 0.114));
+	color.a *= luma;
+
+#ifdef ALPHA_CLIP
+	if (color.a < 0.001)
+		discard;
+#endif
+
+	COLOR = color;
+}