Initial commit

extracted/assets/soupapi/shaders/hand/chroma.fsh

@@ -0,0 +1,67 @@
+#version 330 core
+
+in vec2 uv;
+out vec4 outColor;
+
+uniform sampler2D ColorTexture;
+uniform sampler2D DepthTexture;
+uniform float time;
+uniform float chromaSpeed;
+uniform float chromaSaturation;
+uniform float chromaBrightness;
+
+// HSV to RGB conversion
+vec3 hsv2rgb(vec3 c) {
+    vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
+    vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
+    return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
+}
+
+// Create rainbow effect
+vec3 createChromaEffect(vec2 coord, float t) {
+    // Combine vertical and horizontal gradients for more dynamic effect
+    float hue = fract(coord.y * 0.5 + coord.x * 0.3 + t * chromaSpeed);
+
+    // Add wave pattern for more visual interest
+    float wave = sin(coord.y * 10.0 + t * 3.0) * 0.05;
+    hue += wave;
+
+    // Convert HSV to RGB
+    vec3 chromaColor = hsv2rgb(vec3(hue, chromaSaturation, chromaBrightness));
+
+    return chromaColor;
+}
+
+void main() {
+    vec4 originalColor = texture(ColorTexture, uv);
+    vec2 texelSize = 1.0 / textureSize(DepthTexture, 0);
+
+    // Optimized depth-based masking - cross pattern
+    float centerDepth = texture(DepthTexture, uv).r;
+    float minDepth = centerDepth;
+
+    minDepth = min(minDepth, texture(DepthTexture, uv + vec2(-texelSize.x, 0.0)).r);
+    minDepth = min(minDepth, texture(DepthTexture, uv + vec2(texelSize.x, 0.0)).r);
+    minDepth = min(minDepth, texture(DepthTexture, uv + vec2(0.0, -texelSize.y)).r);
+    minDepth = min(minDepth, texture(DepthTexture, uv + vec2(0.0, texelSize.y)).r);
+
+    float mask = smoothstep(0.99, 0.98, minDepth);
+
+    if (mask < 0.01) {
+        discard;
+    }
+
+    // Create chroma effect
+    vec3 chromaColor = createChromaEffect(uv, time);
+
+    // Add slight pulsing to make it more alive
+    float pulse = 0.9 + sin(time * 4.0) * 0.1;
+    chromaColor *= pulse;
+
+    vec4 effectColor = vec4(chromaColor, 1.0);
+
+    // Mix original color with chroma effect
+    vec4 finalHandColor = mix(originalColor, effectColor, 0.85);
+
+    outColor = vec4(finalHandColor.rgb, mask);
+}