diff options
| -rw-r--r-- | scene/resources/material.cpp | 35 |
1 files changed, 9 insertions, 26 deletions
diff --git a/scene/resources/material.cpp b/scene/resources/material.cpp index 176af9a1b6..55356c2058 100644 --- a/scene/resources/material.cpp +++ b/scene/resources/material.cpp @@ -1278,38 +1278,21 @@ void BaseMaterial3D::_update_shader() { if ((distance_fade == DISTANCE_FADE_OBJECT_DITHER || distance_fade == DISTANCE_FADE_PIXEL_DITHER)) { if (!RenderingServer::get_singleton()->is_low_end()) { code += " {\n"; + if (distance_fade == DISTANCE_FADE_OBJECT_DITHER) { code += " float fade_distance = abs((VIEW_MATRIX * MODEL_MATRIX[3]).z);\n"; } else { - code += " float fade_distance=-VERTEX.z;\n"; + code += " float fade_distance = -VERTEX.z;\n"; } + // Use interleaved gradient noise, which is fast but still looks good. + code += " const vec3 magic = vec3(0.06711056f, 0.00583715f, 52.9829189f);"; + code += " float fade = clamp(smoothstep(distance_fade_min, distance_fade_max, fade_distance), 0.0, 1.0);\n"; + // Use a hard cap to prevent a few stray pixels from remaining when past the fade-out distance. + code += " if (fade < 0.001 || fade < fract(magic.z * fract(dot(FRAGCOORD.xy, magic.xy)))) {\n"; + code += " discard;\n"; + code += " }\n"; - code += " float fade=clamp(smoothstep(distance_fade_min,distance_fade_max,fade_distance),0.0,1.0);\n"; - code += " int x = int(FRAGCOORD.x) % 4;\n"; - code += " int y = int(FRAGCOORD.y) % 4;\n"; - code += " int index = x + y * 4;\n"; - code += " float limit = 0.0;\n\n"; - code += " if (x < 8) {\n"; - code += " if (index == 0) limit = 0.0625;\n"; - code += " if (index == 1) limit = 0.5625;\n"; - code += " if (index == 2) limit = 0.1875;\n"; - code += " if (index == 3) limit = 0.6875;\n"; - code += " if (index == 4) limit = 0.8125;\n"; - code += " if (index == 5) limit = 0.3125;\n"; - code += " if (index == 6) limit = 0.9375;\n"; - code += " if (index == 7) limit = 0.4375;\n"; - code += " if (index == 8) limit = 0.25;\n"; - code += " if (index == 9) limit = 0.75;\n"; - code += " if (index == 10) limit = 0.125;\n"; - code += " if (index == 11) limit = 0.625;\n"; - code += " if (index == 12) limit = 1.0;\n"; - code += " if (index == 13) limit = 0.5;\n"; - code += " if (index == 14) limit = 0.875;\n"; - code += " if (index == 15) limit = 0.375;\n"; - code += " }\n\n"; - code += " if (fade < limit)\n"; - code += " discard;\n"; code += " }\n\n"; } |