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Add rotating shine rays

master
Fabien Freling 2018-11-04 17:57:36 +01:00
parent 0f8b314cdf
commit 0294800e6b
1 changed files with 34 additions and 28 deletions
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62
scenes/Goal.tscn
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@ -11,6 +11,8 @@ extents = Vector3( 0.584547, 2.22627, 0.659734 )
code = "shader_type spatial; code = "shader_type spatial;
uniform float PI = 3.1415;
// BILLBOARD_FIXED_Y // BILLBOARD_FIXED_Y
// from: https://github.com/godotengine/godot/blob/master/scene/resources/material.cpp#L552 // from: https://github.com/godotengine/godot/blob/master/scene/resources/material.cpp#L552
void vertex() { void vertex() {
@ -18,46 +20,47 @@ void vertex() {
MODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz),0,0,0),vec4(0,1,0,0),vec4(0,0,length(WORLD_MATRIX[2].xyz),0),vec4(0,0,0,1)); MODELVIEW_MATRIX = MODELVIEW_MATRIX * mat4(vec4(length(WORLD_MATRIX[0].xyz),0,0,0),vec4(0,1,0,0),vec4(0,0,length(WORLD_MATRIX[2].xyz),0),vec4(0,0,0,1));
} }
//float atan2(vec2 coords) { float shine_ray(vec2 center_coords, float time, float offset, float speed) {
// float pi = 3.14; // atan() is in [-pi, pi[
// if (coords.x > 0.0) { float angle = atan(center_coords.x, center_coords.y) + offset;
// return atan(coords.x, coords.y); if (angle > PI) {
// } else if (coords.x < 0.0) { angle -= 2.0 * PI;
// if (coords.y >= 0.0) { }
// return atan(coords.x, coords.y) - pi; if (angle < -PI) {
// } else { angle += 2.0 * PI;
// return atan(coords.x, coords.y) + pi; }
// } float t = mod(-time * speed, 2.0 * PI) - PI; // [-pi, pi[
// } else if (coords.y > 0.0) { bool on_ray = abs(angle - t) < 0.05;
// return pi / 2.0;
// } else { if (!on_ray) {
// return - pi / 2.0; return 0.0;
// } }
//}
float max_dist = 0.5; // maximum orthogonal distance from center in a [0,1] rectangle
float center_dist = sqrt(pow(center_coords.x, 2) + pow(center_coords.y, 2)) / max_dist;
float intensity = 1.0;
return clamp((1.0 - center_dist) * intensity, 0.0, 1.0);
}
void fragment() { void fragment() {
ALBEDO = vec3(1.0, 1.0, 0); ALBEDO = vec3(1.0, 1.0, 0);
vec2 center_coords = vec2(UV.x - 0.5, UV.y - 0.5); vec2 center_coords = vec2(UV.x - 0.5, UV.y - 0.5);
float max_dist = 0.5; // maximum orthogonal distance from center in a [0,1] rectangle ALPHA = clamp(
// distance from the center, normalized on [0,1] shine_ray(center_coords, TIME, 0.0, 0.3) +
float center_dist = sqrt(pow(center_coords.x, 2) + pow(center_coords.y, 2)) / max_dist; shine_ray(center_coords, TIME, PI, 0.3) +
float angle = atan(center_coords.x, center_coords.y); shine_ray(center_coords, TIME, 0.0, 0.5) +
shine_ray(center_coords, TIME, PI, 0.4),
bool on_ray = abs(angle - (sin(TIME) * 3.14)) < 0.1;// * (1.0 - center_dist); 0.0, 1.0);
if (on_ray) {
ALPHA = 1.0;
} else {
ALPHA = max(1.0 - center_dist, 0.0);
}
} }
" "
_sections_unfolded = [ "Resource" ]
[sub_resource type="ShaderMaterial" id=3] [sub_resource type="ShaderMaterial" id=3]
render_priority = 0 render_priority = 0
shader = SubResource( 2 ) shader = SubResource( 2 )
shader_param/PI = null
[sub_resource type="Gradient" id=4] [sub_resource type="Gradient" id=4]
@ -158,5 +161,8 @@ frame = 0
region_enabled = false region_enabled = false
region_rect = Rect2( 0, 0, 0, 0 ) region_rect = Rect2( 0, 0, 0, 0 )
_sections_unfolded = [ "Animation", "Flags", "Geometry", "LOD", "Pause", "Region", "Transform", "Visibility" ] _sections_unfolded = [ "Animation", "Flags", "Geometry", "LOD", "Pause", "Region", "Transform", "Visibility" ]
__meta__ = {
"_edit_lock_": true
}