Radial Blur Shader
A radial blur shader.
Shader code
/*
放射状ブラーエフェクト by あるる（きのもと 結衣） @arlez80
Radial Blur Effect by Yui Kinomoto
MIT License
*/
shader_type canvas_item;
// 発射中央部
uniform vec2 blur_center = vec2( 0.5, 0.5 );
// ブラー強度
uniform float blur_power : hint_range( 0.0, 1.0 ) = 0.01;
// サンプリング回数
uniform int sampling_count : hint_range( 1, 64 ) = 6;
void fragment( )
{
vec2 direction = SCREEN_UV - blur_center;
vec3 c = vec3( 0.0, 0.0, 0.0 );
float f = 1.0 / float( sampling_count );
for( int i=0; i < sampling_count; i++ ) {
c += texture( SCREEN_TEXTURE, SCREEN_UV - blur_power * direction * float(i) ).rgb * f;
}
COLOR.rgb = c;
}
Well made, thanks for sharing!
Updated for Godot 4.3
/*
Radial Blur Effect by Yui Kinomoto
MIT License
*/
shader_type canvas_item;
uniform vec2 blur_center = vec2( 0.5, 0.5 );
uniform float blur_power : hint_range( 0.0, 1.0 ) = 0.01;
uniform int sampling_count : hint_range( 1, 64 ) = 6;
uniform sampler2D texturescreen : hint_screen_texture;
void fragment( )
{
vec2 direction = SCREEN_UV – blur_center;
vec3 c = vec3( 0.0, 0.0, 0.0 );
float f = 1.0 / float( sampling_count );
for( int i=0; i < sampling_count; i++ ) {
c += texture( texturescreen, SCREEN_UV – blur_power * direction * float(i) ).rgb * f;
}
COLOR.rgb = c;
}