noise, but noghint working

shaders/agent_shader.gdshader

@@ -1,17 +0,0 @@
-shader_type canvas_item;
-
-// Snippets of code drawn from https://gist.github.com/Bleuje/1e497df4505ca24c39ab3930a95700b3
-
-uniform sampler2D sim_texture;
-
-float gn(in vec2 coordinate, in float seed){
-    return fract(tan(distance(coordinate*(seed+0.118446744073709551614), vec2(0.118446744073709551614, 0.314159265358979323846264)))*0.141421356237309504880169);
-}
-
-void fragment() {
-	vec3 orig = texture(sim_texture, UV).rgb;
-	float agent = orig.r;
-	float trail = orig.g;
-	
-	COLOR = vec4(agent, trail, orig.b, 1.0);
-}

shaders/dissolve.gdshader

@@ -1,20 +1,21 @@
 shader_type canvas_item;
 
-uniform sampler2D sim_texture;
+uniform sampler2D trail_texture;
 
 uniform float decay_factor;
 
 void fragment() {
-	vec3 orig = texture(sim_texture, UV).rgb;
-	float trail = texture(sim_texture, UV).g;
+	vec3 orig = texture(trail_texture, UV).rgb;
+	float trail = orig.r;
 
 	float sum = 0.0;
-	for(int i=-1;i<=1;i++) {
-		for(int j=-1;j<=1;j++) {
-			sum += texture(sim_texture, UV).g;
+	for(float i=-1.0;i<=1.5;i++) {
+		for(float j=-1.0;j<=1.5;j++) {
+			vec2 offset = vec2(i,j);
+			sum += texture(trail_texture, UV + vec2(i,j)).g;
 		}
 	}
 	trail = sum / 9.0;
 	trail = trail * decay_factor;
-	COLOR = vec4(orig.r, trail, orig.b, 1.0);
+	COLOR = vec4(trail, orig.g, orig.b, 1.0);
 }

shaders/point_shader.gdshader

@@ -0,0 +1,38 @@
+shader_type canvas_item;
+
+uniform sampler2D point_texture;
+uniform sampler2D trail_texture;
+
+uniform ivec2 point_texture_size;
+uniform ivec2 canvas_size;
+uniform float point_speed;
+
+// Snippets of code drawn from https://gist.github.com/Bleuje/1e497df4505ca24c39ab3930a95700b3
+float gn(in vec2 coordinate, in float seed){
+    return fract(tan(distance(coordinate*(seed+0.118446744073709551614), vec2(0.118446744073709551614, 0.314159265358979323846264)))*0.141421356237309504880169);
+}
+
+float trail_at_pos(vec2 uv) {
+	return texture(trail_texture, uv).r;
+}
+
+void vertex() {
+	int id = VERTEX_ID;
+	int x = id % point_texture_size.x;
+	int y = id / point_texture_size.x;
+	// This feels dumb
+	vec2 uv = vec2(float(x), float(y));
+	vec4 point_data = texture(point_texture, uv);
+	
+	vec2 pos = point_data.xy;
+	pos += vec2(5000.0, 5000.0);
+	float angle = point_data.z;
+
+	
+	VERTEX = pos/vec2(canvas_size);
+	//COLOR = vec4(pos, angle, point_data.z)
+	COLOR=vec4(1, 1, 1, 1);
+}
+
+void fragment() {
+}

shaders/view_simulation.gdshader

@@ -1,6 +1,6 @@
 shader_type canvas_item;
 
-uniform sampler2D sim_texture;
+uniform sampler2D view_texture;
 
 void fragment() {
 	vec3 v = texture(view_texture, UV).rgb;