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Improve the appearance of simple parallax in StandardMaterial3D

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This uses offset limiting to avoid distortion in the distance,
and makes simple (non-deep) parallax more usable overall.
This commit is contained in:
Hugo Locurcio
2021-07-12 00:44:24 +02:00
parent 90870fd48f
commit e47d0e021a
1 changed files with 3 additions and 1 deletions
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4
scene/resources/material.cpp
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@@ -957,7 +957,9 @@ void BaseMaterial3D::_update_shader() {
} else { } else {
code += " float depth = 1.0 - texture(texture_heightmap, base_uv).r;\n"; code += " float depth = 1.0 - texture(texture_heightmap, base_uv).r;\n";
} }
code += " vec2 ofs = base_uv - view_dir.xy / view_dir.z * (depth * heightmap_scale);\n"; // Use offset limiting to improve the appearance of non-deep parallax.
// This reduces the impression of depth, but avoids visible warping in the distance.
code += " vec2 ofs = base_uv - view_dir.xy * depth * heightmap_scale;\n";
} }
code += " base_uv=ofs;\n"; code += " base_uv=ofs;\n";