temp: more shaders

.gitignore

@@ -29,3 +29,4 @@ mono_crash.*.json
 *.import
 *.blend*
 .ansible_vault_password
+addons/discord-rpc-gd/bin/windows/~discord_game_sdk_binding_debug.dll

src/models/icosahedron/Icosahedron.tscn

@@ -1,11 +1,10 @@
-[gd_scene load_steps=20 format=3 uid="uid://c28nbcejwepp8"]
+[gd_scene load_steps=19 format=3 uid="uid://c28nbcejwepp8"]
 
 [ext_resource type="ArrayMesh" uid="uid://dh3qpoqqgdct5" path="res://src/models/icosahedron/assets/icosahedron_Solid.res" id="1_kd7xu"]
 [ext_resource type="Script" path="res://src/models/icosahedron/components/Icosahedron.gd" id="1_w7qn7"]
-[ext_resource type="Shader" path="res://src/models/icosahedron/shaders/cut_plane_shader.gdshader" id="2_u8yhs"]
+[ext_resource type="Shader" path="res://src/models/icosahedron/shaders/cutplane_effect_v4.gdshader" id="2_3wk2e"]
 [ext_resource type="Script" path="res://src/models/icosahedron/components/CutPlane.gd" id="2_yg3qy"]
 [ext_resource type="Shader" path="res://src/models/icosahedron/shaders/edge_highlight_v1.gdshader" id="5_al5e2"]
-[ext_resource type="Shader" path="res://src/models/icosahedron/shaders/cutplane_effect_v2.gdshader" id="5_cipg0"]
 [ext_resource type="Script" path="res://src/models/icosahedron/components/MeshIcosahedron.gd" id="5_q8b2e"]
 [ext_resource type="Shader" path="res://src/models/icosahedron/shaders/icosahedron_shader_v1.gdshader" id="5_s1usq"]
 [ext_resource type="Shader" path="res://src/models/icosahedron/shaders/outline_v1.gdshader" id="5_ucsrc1"]
@@ -15,7 +14,15 @@
 
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_rdyh1"]
 render_priority = 0
-shader = ExtResource("2_u8yhs")
+shader = ExtResource("2_3wk2e")
+shader_parameter/cutplane = Vector4(-0.577, -0.577, 0.577, 0.794)
+shader_parameter/color = Color(0, 1, 0, 1)
+shader_parameter/enable = true
+shader_parameter/outline_thickness = 0.025
+shader_parameter/_center = Vector2(0.5, 0.5)
+shader_parameter/_zoom = 1.0
+shader_parameter/_repeat = 1.0
+shader_parameter/_speed = 1.0
 
 [sub_resource type="PlaneMesh" id="PlaneMesh_8mu0u"]
 
@@ -36,25 +43,24 @@ render_priority = 2
 next_pass = SubResource("ShaderMaterial_4yeiy")
 shader = ExtResource("5_ucsrc1")
 shader_parameter/enable = false
-shader_parameter/outline_thickness = 0.11
-shader_parameter/color = Color(0, 1, 0, 1)
+shader_parameter/outline_thickness = 0.05
+shader_parameter/color = Color(0.358796, 0.73469, 0.907072, 1)
+shader_parameter/pulse_speed = 12.0
+shader_parameter/pulse_amplitude = 2.0
 
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_c0lt3"]
 render_priority = 1
 next_pass = SubResource("ShaderMaterial_i83je")
-shader = ExtResource("5_cipg0")
+shader = ExtResource("2_3wk2e")
 shader_parameter/cutplane = Vector4(-0.577, -0.577, 0.577, 0.794)
 shader_parameter/color = Color(0, 1, 0, 1)
 shader_parameter/enable = true
-shader_parameter/outline_thickness = 0.0
-shader_parameter/uv_offset_x = 0.17
-shader_parameter/uv_offset_y = 2.71
-shader_parameter/ratio = 0.075
-shader_parameter/power = 2.775
-shader_parameter/time_speed = 3.61
-shader_parameter/max_speed = 90.0
-shader_parameter/uv_rot = Vector2(0.11, 0.375)
-shader_parameter/cutlane_tex = ExtResource("8_h5ail")
+shader_parameter/outline_thickness = 0.04
+shader_parameter/_center = Vector2(0.11, 0.39)
+shader_parameter/_zoom = 2.85
+shader_parameter/_repeat = 6.0
+shader_parameter/_speed = 0.35
+shader_parameter/TEXTURE = ExtResource("8_h5ail")
 
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_bjqtf"]
 render_priority = 0

src/models/icosahedron/shaders/cutplane_effect_v2.gdshader

@@ -1,5 +1,5 @@
 shader_type spatial;
-render_mode cull_front, depth_test_disabled;
+render_mode cull_disabled, depth_test_disabled;
 
 #include "cutplane.gdshaderinc"
 #include "res://src/shaders/shader_utils.gdshaderinc"
@@ -33,7 +33,7 @@ vec2 rotate(vec2 uv, vec2 pivot, float angle) {
     // clang-format off
     mat2 rotation = mat2(
         vec2(sin(angle), -cos(angle)),
-        vec2(cos(angle), sin(angle)),
+        vec2(cos(angle), sin(angle))
     );
     // clang-format on
 
@@ -43,6 +43,25 @@ vec2 rotate(vec2 uv, vec2 pivot, float angle) {
     return uv;
 }
 
+uniform vec2 center;
+uniform float strength : hint_range(-10, 10);
+uniform float speed : hint_range(-10, 10);
+
+vec2 vortex(vec2 uv, vec2 _center, float _strength, float _speed) {
+    float t = sin(TIME);
+    vec2 dir = uv - _center;
+    float dist = length(dir);
+    //float angle = atan(dir.y * (1. - abs(sin(TIME))), dir.x * abs(sin(TIME)));
+    float angle = atan(dir.y, dir.x) * 0.4;
+    //if (angle)
+    float radius = dist * _strength;
+    float new_angle = angle + TIME * _speed;
+
+    vec2 new_uv = _center + vec2(cos(new_angle), sin(new_angle)) * radius;
+
+    return new_uv;
+}
+
 void vertex() {
     if (enable) {
         // VERTEX += NORMAL * outline_thickness; // apply the outlines thickness
@@ -52,17 +71,21 @@ void vertex() {
 
 void fragment() {
     vec2 uv = UV;
-
-    uv *= 2.0;
-    uv -= vec2(1.0);
-
-    float len = length(uv);
-
-    vec2 modified_uv = rotate(UV, uv_rot, TIME * time_speed);
-    float t = sin(TIME);
-    modified_uv.x += uv_offset_x;
-    modified_uv.y += uv_offset_y;
-    vec4 aaa = texture(cutlane_tex, modified_uv * 5.);
+    vec2 new_uv = vortex(uv, center, strength, speed);
+
+    vec4 tex = texture(cutlane_tex, new_uv);
+
+//
+    //uv *= 2.0;
+    //uv -= vec2(1.0);
+//
+    //float len = length(uv);
+//
+    //vec2 modified_uv = rotate(UV, uv_rot, TIME * time_speed);
+    //float t = sin(TIME);
+    //modified_uv.x += uv_offset_x;
+    //modified_uv.y += uv_offset_y;
+    //vec4 aaa = texture(cutlane_tex, modified_uv * 5.);
     if (enable) {
         float dist = cutplane_dist(cutplane, ver);
         bool a = dist > 0.;
@@ -76,8 +99,9 @@ void fragment() {
         // vec3(0.);
         // vec2 rotated_uv = rotate(UV, vec2(0.5), TIME);
         // ALBEDO = vec3(rotated_uv.g);
-        ALBEDO = color * (1. - vec3(aaa.a));
-        ALPHA = a ? 0.7 : 0.;
+        ALBEDO = color * (1. - vec3(tex.a));
+        //ALBEDO = vec3(tex.a);
+        //ALPHA = a ? 0.7 : 0.;
 
     } else {
         ALPHA = .0;

src/models/icosahedron/shaders/cutplane_effect_v4.gdshader

@@ -0,0 +1,68 @@
+shader_type spatial;
+render_mode cull_front, depth_test_disabled, unshaded;
+
+#include "cutplane.gdshaderinc"
+#include "res://src/shaders/shader_utils.gdshaderinc"
+
+// to get vac coord a= sin^2(angle), b = sin(angle)*cos(angle)
+uniform vec4 cutplane = vec4(-0.577, -0.577, 0.577, 0.794);
+uniform vec3 color : source_color = vec3(0.0, 1., 0.);
+
+uniform bool enable = true;
+// outline costumization
+uniform float outline_thickness = 0.0; // how thick is the outline?
+
+uniform vec2 _center = vec2(0.5);
+uniform float _zoom = 1.;
+uniform float _repeat = 1.;
+uniform float _speed = 1.;
+
+varying vec3 ver;
+
+uniform sampler2D screen_texture : hint_screen_texture, repeat_disable, filter_nearest;
+
+uniform sampler2D TEXTURE;
+
+vec2 polar_coordinates(vec2 uv, vec2 center, float zoom, float repeat)
+{
+    vec2 dir = uv - center;
+    float radius = length(dir) * 2.0;
+    float angle = atan(dir.y, dir.x) * 1.0/(3.1416 * 2.0);
+    return mod(vec2(radius * zoom, angle * repeat), 1.0);
+}
+
+void vertex() {
+    if (enable) {
+         //VERTEX += BINORMAL * outline_thickness; // apply the outlines thickness
+         //VERTEX += TANGENT * outline_thickness; // apply the outlines thickness
+        ver = VERTEX;
+    }
+}
+
+void fragment() {
+    vec3 albedo_out;
+    vec2 uv = UV;
+    //uv.x += fract(TIME / TAU);
+    vec2 polar_uv = polar_coordinates(uv, _center, _zoom, _repeat);
+    polar_uv.x += fract(TIME * _speed);
+    polar_uv.y += sin(TIME /2.);
+    vec4 my_tex = texture(TEXTURE, polar_uv);
+    vec4 currentColor = textureLod(screen_texture, SCREEN_UV, 0.0);
+    if (enable) {
+        float dist = cutplane_dist(cutplane, ver);
+        bool a = dist > 0.;
+        float c = length(ver);
+        float b = my_tex.a;
+        //albedo_out = vec3(b);
+        //albedo_out = vec3(fract(uv*10.), 0.);
+        //albedo_out = min(currentColor.rgb + vec3(0, b, 0.));
+        albedo_out = currentColor.rgb + vec3(b, 0., 0.);
+        ALBEDO = a ? albedo_out : currentColor.rgb;
+        ALPHA = currentColor.a;
+        //ALPHA = a ? 1. : 0.01;
+
+    } else {
+        ALBEDO = currentColor.rgb;
+        //ALPHA = currentColor.a;
+    }
+}

src/models/icosahedron/shaders/outline_v1.gdshader

@@ -1,5 +1,5 @@
 shader_type spatial;
-render_mode cull_front, unshaded;
+render_mode unshaded, cull_front;
 
 uniform bool enable = false;
 
@@ -8,18 +8,15 @@ uniform sampler2D screen_texture : hint_screen_texture,
                                    filter_nearest;
 
 // outline costumization
-uniform float outline_thickness = 0.11;
-uniform vec4 color : source_color = vec4(0., 1., 0., 1.);
+uniform float outline_thickness = 0.05;
+uniform vec4 color : source_color = vec4(0.0);
 
 // pulse customization
 uniform float pulse_speed = 12.;
 uniform float pulse_amplitude = 2.;
 
 varying vec3 ver;
 
-uniform sampler2D screen_texture : hint_screen_texture, repeat_disable, filter_nearest;
-uniform sampler2D outline_tex;
-
 void vertex() {
     if (enable) {
         float t = sin(TIME * pulse_speed) / pulse_amplitude + 1.;