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Add drop shadows to the Monochrome LCD shader

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Lior Halphon 2020-03-06 17:37:47 +02:00
parent 4963ec4cc4
commit fe7667a00c
1 changed files with 13 additions and 1 deletions
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14
Shaders/MonoLCD.fsh
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@ -34,5 +34,17 @@ STATIC vec4 scale(sampler2D image, vec2 position, vec2 input_resolution, vec2 ou
multiplier *= (1.0 - sub_pos.x) * SCANLINE_DEPTH + (1 - SCANLINE_DEPTH); multiplier *= (1.0 - sub_pos.x) * SCANLINE_DEPTH + (1 - SCANLINE_DEPTH);
} }
return mix(texture(image, position) * multiplier, mix(r1, r2, s.y), BLOOM); vec4 pre_shadow = mix(texture(image, position) * multiplier, mix(r1, r2, s.y), BLOOM);
pixel += vec2(-0.6, -0.8);
q11 = texture(image, (floor(pixel) + 0.5) / input_resolution);
q12 = texture(image, (vec2(floor(pixel.x), ceil(pixel.y)) + 0.5) / input_resolution);
q21 = texture(image, (vec2(ceil(pixel.x), floor(pixel.y)) + 0.5) / input_resolution);
q22 = texture(image, (ceil(pixel) + 0.5) / input_resolution);
r1 = mix(q11, q21, fract(pixel.x));
r2 = mix(q12, q22, fract(pixel.x));
vec4 shadow = mix(r1, r2, fract(pixel.y));
return mix(min(shadow, pre_shadow), pre_shadow, 0.75);
} }