update

shader/heatmap.frag

@@ -0,0 +1,27 @@
+#version 330 core
+in vec2 vUV;
+in vec3 vWorldPos;
+out vec4 FragColor;
+
+uniform sampler2D uHeightTex;
+uniform float uMinV;
+uniform float uMaxV;
+uniform float uHeightScale;
+uniform vec2 uTexelSize;
+uniform vec2 uPlaneSize;
+uniform vec3 uCameraPos;
+uniform vec3 uLightDir;
+uniform vec3 uColorZero;
+uniform vec3 uColorLow;
+uniform vec3 uColorMid;
+uniform vec3 uColorHigh;
+
+float saturate(float x) {
+    return clamp(x, 0.0, 1.0);
+}
+
+float value01(float v) {
+    return saturate((v - uMinV) / max(uMaxV - uMinV, 1e-6));
+}
+
+float maxNeighborValue(vec2 uv)

shader/heatmap.vert

@@ -0,0 +1,28 @@
+#version 330 core
+layout(location = 0) in vec3 aPos;
+layout(location = 1) in vec2 aUV;
+
+out vec2 vUV;
+out vec3 vWorldPos;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+uniform sampler2D uHeightTex;
+uniform float uMinV;
+uniform float uMaxV;
+uniform float uHeightScale;
+uniform float uBaseZ;
+
+float value01(float v) {
+    return clamp((v - uMinV) / max(uMaxV - uMinV, 1e-6), 0.0, 1.0);
+}
+
+void main() {
+    vUV = aUV;
+    float v = texture(uHeightTex, aUV).r;
+    float h = value01(v) * uHeightScale;
+    vec3 world = aPos + vec3(0.0, 0.0, uBaseZ + h);
+    vWorldPos = world;
+    gl_Position = projection * view * model * vec4(world, 1.0);
+}

shader/panel.frag

@@ -0,0 +1,29 @@
+#version 330 core
+
+in vec3 vWorldPos;
+in vec3 vWorldNormal;
+
+out vec4 FragColor;
+uniform bool uLightMode;
+
+void main() {
+    vec3 N = normalize(vWorldNormal);
+    float isTop = step(0.75, N.y);
+
+    vec3 topBase;
+    vec3 sideBase;
+
+    if (uLightMode) {
+        // 浅色主题 偏亮的工业灰
+        topBase = vec3(0.78, 0.80, 0.84);
+        sideBase = vec3(0.68, 0.70, 0.74);
+    }
+    else {
+        // 深色主题 偏暗的工业灰
+        topBase = vec3(0.30, 0.31, 0.32);
+        sideBase = vec3(0.27, 0.28, 0.29);
+    }
+
+    vec3 baseColor = mix(sideBase, topBase, isTop);
+    FragColor = vec4(clamp(baseColor, 0.0, 1.0), 1.0);
+}

shader/panel.vert

@@ -0,0 +1,19 @@
+#version 330 core
+
+layout(location = 0) in vec3 aPos;
+layout(location = 1) in vec3 aN;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+
+out vec3 vWorldPos;
+out vec3 vWorldNormal;
+
+void main() {
+    vec4 worldPos = model * vec4(aPos, 1.0);
+    mat3 normalMat = transpose(inverse(mat3(model)));
+    vWorldPos = worldPos.xyz;
+    vWorldNormal = normalize(normalMat * aN);
+    gl_Position = projection * view * worldPos;
+}