Improve shadows and add antialiasing

src/graphics/rendering/settings/default-startup-settings.ts

@@ -0,0 +1,7 @@
+import { StartupSettings } from './startup-settings';
+
+export const defaultStartupSettings: StartupSettings = {
+  shadowTraceCount: 16,
+  paletteSize: 256,
+  ignoreWebGL2: false,
+};

src/graphics/rendering/settings/runtime-settings.ts

@@ -1,11 +1,11 @@
-import { vec3 } from 'gl-matrix';
+import { vec3, vec4 } from 'gl-matrix';
 
 export interface RuntimeSettings {
   enableHighDpiRendering: boolean;
   tileMultiplier: number;
   isWorldInverted: boolean;
-  shadowLength: number;
   lightCutoffDistance: number;
-  colorPalette: Array<vec3>;
+  backgroundColor: vec3 | vec4;
+  colorPalette: Array<vec3 | vec4>;
   ambientLight: vec3;
 }

src/graphics/rendering/settings/startup-settings.ts

@@ -1,4 +1,5 @@
 export interface StartupSettings {
   shadowTraceCount: number;
   paletteSize: number;
+  ignoreWebGL2: boolean;
 }