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Fix the sides of the textures of layers drawn on the canvas being repeated when using the Move tool

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This commit is contained in:
Emmanouil Papadeas 2023-11-02 16:06:52 +02:00
parent f62d7d4f6a
commit 8a87f721b8
1 changed files with 11 additions and 1 deletions
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12
src/Shaders/BlendLayers.gdshader
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@ -135,12 +135,22 @@ vec4 blend(int blend_type, vec4 current_color, vec4 prev_color, float opacity) {
}
// Zeroes the alpha values of textures when UV < 0 and UV > 1
float border_trim(vec4 color, vec2 uv) {
return min(step(uv.x, 1.0) * step(0.0, uv.x) * step(uv.y, 1.0) * step(0.0, uv.y), color.a);
}
void fragment() {
vec4 col = texture(layers, vec3(UV - origins[0], 0.0));
col.a = border_trim(col, UV - origins[0]);
col.a *= opacities[0];
for(int i = 1; i < textureSize(layers, 0).z; i++) // Loops through every layer
{
col = blend(blend_modes[i], texture(layers, vec3(UV - origins[i], float(i))), col, opacities[i]);
vec2 uv = UV - origins[i];
vec4 texture_color = texture(layers, vec3(uv, float(i)));
texture_color.a = border_trim(texture_color, uv);
col = blend(blend_modes[i], texture_color, col, opacities[i]);
}
COLOR = col;
}