[笔记]Godot Shader合集

缓慢更新，伴随着缓慢的神秘制作……

2D Shader

闪烁（flash）

shader_type canvas_item;uniform vec3 flash_color : source_color = vec3(1.0);
uniform float flash_ratio : hint_range(0.0, 1.0) = 0.0;void fragment() {vec4 original_color = texture(TEXTURE, UV);COLOR = vec4(mix(original_color.rgb, flash_color, flash_ratio), original_color.a);
}

灰度（grayscale）

shader_type canvas_item;void fragment() {vec4 I = texture(TEXTURE, UV);float ave = (I.r + I.g + I.b) / 3.0;COLOR = vec4(ave, ave, ave, I.a);
}

纹理覆盖（gradient）

shader_type canvas_item;uniform sampler2D gradient;void fragment() {vec4 I = texture(TEXTURE, UV);float ave = (I.r + I.g + I.b) / 3.0;COLOR = vec4(ave * texture(gradient, UV).rgb, I.a);
}

获取当前屏幕纹理（screen_reading）

shader_type canvas_item;uniform sampler2D screen : hint_screen_texture, filter_nearest;void fragment() {COLOR = texture(screen, SCREEN_UV);
}

溶解(dissolve)

shader_type canvas_item;uniform sampler2D noise;
uniform float ratio : hint_range(0.0, 1.0) = 0.0;void fragment() {if(texture(noise, UV).r < ratio){COLOR.a = 0.0;}else{COLOR = texture(TEXTURE, UV);}
}