Clamp texture sampling of grass to avoid filtering artifacts with MSAA

CHANGELOG.md

@@ -15,6 +15,7 @@ For a more detailed list of past and incoming changes, see the commit history.
 - Added support for importing and exporting 32-bit raw files
 - Allow to set brush size and opacity size with spinboxes (thanks to Vercix)
 - Exposed specular parameter in ground shaders
+- Save terrain data immediately when assigning a new `data_directory` (attempt to workaround random saving issue #232)
 - Fixed brush cursor looked off-center at close range when using tiny brush sizes
 - Fixed error when trying to change `TextureSet` mode while it has textures in it
 - Fixed shader parameters not displaying the right value in the inspector until they are set by the user at least once
@@ -23,6 +24,7 @@ For a more detailed list of past and incoming changes, see the commit history.
 - Fixed detail layers were rendering repeating instances outside the terrain when `map_scale` is not 1.0
 - Fixed detail layers were not rendering correctly when terrain is in centered mode
 - Fixed texture import dialog was opening a very tall window (issue #423)
+- Fixed detail layers "lines" showing on top of grass quads when MSAA is enabled
 
 
 1.7.2

addons/zylann.hterrain/shaders/detail.gdshader

@@ -10,7 +10,10 @@ uniform sampler2D u_terrain_globalmap : source_color;
 uniform mat4 u_terrain_inverse_transform;
 uniform mat3 u_terrain_normal_basis;
 
-uniform sampler2D u_albedo_alpha : source_color;
+// We need to disable repetition, otherwise it can cause "lines" to appear on top of grass quads
+// due to filtering, especially when MSAA is enabled
+uniform sampler2D u_albedo_alpha : source_color, repeat_disable;
+
 uniform float u_view_distance = 100.0;
 uniform float u_globalmap_tint_bottom : hint_range(0.0, 1.0);
 uniform float u_globalmap_tint_top : hint_range(0.0, 1.0);