13 lines
347 B
GLSL
13 lines
347 B
GLSL
shader_type canvas_item;
|
|
render_mode blend_disabled;
|
|
|
|
uniform sampler2D u_brush_texture;
|
|
uniform float u_factor = 1.0;
|
|
uniform float u_value = 1.0;
|
|
|
|
void fragment() {
|
|
float brush_value = texture(u_brush_texture, SCREEN_UV).r;
|
|
|
|
vec4 src = texture(TEXTURE, UV);
|
|
COLOR = vec4(src.rgb, mix(src.a, u_value, u_factor * brush_value));
|
|
}
|