Feature: vibrant dancers

party-cathedral/src/shaders/vibrant-billboard-shader.js

@@ -0,0 +1,22 @@
+import * as THREE from 'three';
+
+export function applyVibrancyToMaterial(material, texture) {
+    // Inject custom shader code to boost vibrancy
+    material.onBeforeCompile = (shader) => {
+        // Pass the texture map to the fragment shader
+        shader.uniforms.vibrancyMap = { value: texture };
+
+        shader.fragmentShader = 'uniform sampler2D vibrancyMap;\n' + shader.fragmentShader;
+        shader.fragmentShader = shader.fragmentShader.replace(
+            '#include <dithering_fragment>',
+            `
+            #include <dithering_fragment>
+            // Get the pure texture color
+            vec4 texColor = texture2D(vibrancyMap, vMapUv);
+            // Mix the final lit color with the pure texture color to keep it vibrant
+            float vibrancy = 0.3; // 0.0 = full lighting, 1.0 = full texture color
+            gl_FragColor.rgb = mix(gl_FragColor.rgb, texColor.rgb, vibrancy) + texColor.rgb * 0.2;
+            `
+        );
+    };
+}