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maximise lod transition smoothness

This commit is contained in:
Xtarsia 2025-11-05 23:17:06 +00:00
parent 4e1f8c5a02
commit 0e2fed4ccf
3 changed files with 6 additions and 3 deletions
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3
project/addons/terrain_3d/extras/shaders/lightweight.gdshader
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@ -180,7 +180,8 @@ void vertex() {
// Geomorph vertex, set end and start for linear height interpolate
float scale = MODEL_MATRIX[0][0];
float inv_scale = 1.0 / scale;
float vertex_lerp = smoothstep(0.55, 0.95, (v_vertex_xz_dist * inv_scale - _mesh_size - 4.0) / (_mesh_size - 2.0));
float vertex_distance = max(abs(v_vertex.x - _target_pos.x), abs(v_vertex.z - _target_pos.z));
float vertex_lerp = smoothstep(0.0, 1.0, (vertex_distance * inv_scale - _mesh_size - 4.0) / (_mesh_size - 4.0));
vec2 v_fract = fract(VERTEX.xz * 0.5) * 2.0;
// For LOD0 morph from a regular grid to an alternating grid to align with LOD1+
vec2 shift = (scale < _vertex_spacing / _subdiv + 1e-6) ? // LOD0 or not

3
project/addons/terrain_3d/extras/shaders/minimum.gdshader
View File

@ -107,7 +107,8 @@ void vertex() {
// Geomorph vertex, set end and start for linear height interpolate
float scale = MODEL_MATRIX[0][0];
float inv_scale = 1.0 / scale;
float vertex_lerp = smoothstep(0.55, 0.95, (v_vertex_xz_dist * inv_scale - _mesh_size - 4.0) / (_mesh_size - 2.0));
float vertex_distance = max(abs(v_vertex.x - _target_pos.x), abs(v_vertex.z - _target_pos.z));
float vertex_lerp = smoothstep(0.0, 1.0, (vertex_distance * inv_scale - _mesh_size - 4.0) / (_mesh_size - 4.0));
vec2 v_fract = fract(VERTEX.xz * 0.5) * 2.0;
// For LOD0 morph from a regular grid to an alternating grid to align with LOD1+
vec2 shift = (scale < _vertex_spacing / _subdiv + 1e-6) ? // LOD0 or not

3
src/shaders/main.glsl
View File

@ -192,7 +192,8 @@ void vertex() {
// Geomorph vertex, set end and start for linear height interpolate
float scale = MODEL_MATRIX[0][0];
float inv_scale = 1.0 / scale;
float vertex_lerp = smoothstep(0.55, 0.95, (v_vertex_xz_dist * inv_scale - _mesh_size - 4.0) / (_mesh_size - 2.0));
float vertex_distance = max(abs(v_vertex.x - _target_pos.x), abs(v_vertex.z - _target_pos.z));
float vertex_lerp = smoothstep(0.0, 1.0, (vertex_distance * inv_scale - _mesh_size - 4.0) / (_mesh_size - 4.0));
vec2 v_fract = fract(VERTEX.xz * 0.5) * 2.0;
// For LOD0 morph from a regular grid to an alternating grid to align with LOD1+
vec2 shift = (scale < _vertex_spacing / _subdiv + 1e-6) ? // LOD0 or not