Add shadow_resolution_scale

@@ -131,0 +133,4 @@
+int shadow_directional_level(LightData light, vec3 lP)
+{
+  int clipmap_lod = int(ceil(shadow_directional_level_fractional(light, lP)));
+  return clamp(clipmap_lod, light.clipmap_lod_min, light.clipmap_lod_max);

@@ -131,0 +144,4 @@
+ */
+float shadow_punctual_footprint_ratio(LightData light,
+                                      vec3 P,
+                                      float perspective_division,

@@ -470,0 +478,4 @@
+    float dist_to_cam = distance(P, drw_view_position());
+    float perspective_division = 1.0;
+    if (drw_view_is_perspective()) {
+      perspective_division = distance(P, drw_view_position());

@@ -819,2 +819,3 @@
   float pcf_radius;
-  int _pad0;
+  /* Shadow Map resolution bias. */
+  float lod_bias;

@@ -1311,6 +1311,8 @@ void ShadowModule::set_view(View &view, GPUTexture *depth_tx)
 
   pixel_world_radius_ = screen_pixel_radius(view, int2(target_size));
   tilemap_projection_ratio_ = tilemap_pixel_radius() / pixel_world_radius_;
+  data_.tilemap_projection_ratio = tilemap_projection_ratio_;

@@ -464,3 +464,3 @@
   rand = sampling_rng_2D_get(SAMPLING_SHADOW_V);
 #endif
-  vec2 pcf_offset = interlieved_gradient_noise(UTIL_TEXEL, vec2(0.0), rand);
+  vec2 pcf_offset = interlieved_gradient_noise(UTIL_TEXEL, vec2(5, 7), rand);

@@ -470,0 +481,4 @@
+        light, P, is_perspective, dist_to_cam, uniform_buf.shadow.tilemap_projection_ratio);
+    float lod = -log2(footprint_ratio) + light.lod_bias;
+    lod = clamp(lod, 0.0, float(SHADOW_TILEMAP_LOD));
+    float pcf_scale = pow(2.0, lod);

@@ -307,0 +307,4 @@
+  prop = RNA_def_property(srna, "shadow_resolution_scale", PROP_FLOAT, PROP_FACTOR);
+  RNA_def_property_range(prop, 0.0f, 2.0f);
+  RNA_def_property_ui_range(prop, 0.0f, 2.0f, 0.25f, 2);
+  RNA_def_property_ui_text(prop, "Shadow Resolution Scale", "Bias the Shadow Map resolution");