Get ambient lighting block working

assets/materials/static.skm.yaml

@@ -16,6 +16,16 @@ materials:
       twoTone: true
     gSPGeometryMode:
       clear: [G_LIGHTING]
+    
+    gDPSetCycleType: G_CYC_2CYCLE
+    gDPSetCombineMode: 
+      - color: [PRIMITIVE, "ENVIRONMENT", TEXEL0, "ENVIRONMENT"]
+        alpha: ["0", "0", "0", "1"]
+      - color: ["COMBINED", "0", "SHADE", "0"]
+        alpha: ["0", "0", "0", "1"]
+    gDPSetRenderMode: 
+      - G_RM_PASS
+      - G_RM_ZB_OPA_SURF
 
     properties:
       tileSizeS: 1

skelatool64/lua/sk_math.lua

@@ -531,6 +531,10 @@ function Color4.__mul(a, b)
     return color4(a.r * b.r, a.g * b.g, a.b * b.b, a.a * b.a)
 end
 
+function Color4.__tostring(v)
+    return 'color4(' .. v.r .. ', ' .. v.g .. ', ' .. v.b .. ', ' .. v.a .. ')'
+end
+
 --- Linearly interpolates between two points
 --- @function lerp
 --- @tparam Color4 b

tools/level_scripts/static_export.lua

@@ -33,7 +33,7 @@ local function proccessStaticNodes(nodes)
 
             if chunkV.material.properties.staticLit == "true" then
                 for index, pos in pairs(chunkV.mesh.vertices) do
-                    -- chunkV.mesh.colors[index] = static_lighting.light_vertex(pos, chunkV.mesh.normals[index])
+                    chunkV.mesh.colors[1][index] = static_lighting.light_vertex(pos, chunkV.mesh.normals[index])
                 end
             end
 

tools/level_scripts/static_lighting.lua

@@ -46,7 +46,7 @@ local function build_ambient_block(ambient_mesh)
 end
 
 local function evaluate_ambient_block(block, pos, normal)
-    local lerp_values = block.bb:unlerp(pos)
+    local lerp_values = block.bb:unlerp(pos):min(sk_math.vector3(1, 1, 1)):max(sk_math.vector3(0, 0, 0))
 
     local x0 = block.colors[1]:lerp(block.colors[2], lerp_values.x)
     local x1 = block.colors[3]:lerp(block.colors[4], lerp_values.x)
@@ -98,6 +98,10 @@ local function find_nearest_ambient_boxes(pos, max_count)
         end
     end
 
+    if #distances == 1 then
+        return boxes, {1}
+    end
+
     local weights = {}
     local total_weight = 0