Weiter an den Dialogen gearbeitet

blight-assets/src/main/resources/Shaders/Tree.vert

@@ -1,11 +1,11 @@
 #import "Common/ShaderLib/GLSLCompat.glsllib"
 
-
-uniform mat4 g_WorldViewProjectionMatrix;
-uniform mat4 g_WorldMatrix;
+uniform mat4  g_WorldViewProjectionMatrix;
+uniform mat4  g_WorldMatrix;
 uniform float g_Time;
 uniform float m_WindStrength;
 uniform float m_WindSpeed;
+uniform vec2  m_WindDir;
 
 in vec3 inPosition;
 in vec3 inNormal;
@@ -16,18 +16,27 @@ out vec2 texCoord;
 out vec3 worldNormal;
 
 void main() {
-float windW = inColor.r;
-float t = g_Time * m_WindSpeed;
+    float windW = inColor.r;
+    float t = g_Time * m_WindSpeed;
 
-// Welt-Position für orts-abhängige Phase (verhindert synchrones Schwingen)
-vec4 worldPos = g_WorldMatrix * vec4(inPosition, 1.0);
-float phase = worldPos.x * 0.08 + worldPos.z * 0.06;
-float swayX = sin(t + phase) * windW * m_WindStrength;
-float swayZ = cos(t * 0.73 + phase) * windW * m_WindStrength * 0.55;
+    vec4 worldPos = g_WorldMatrix * vec4(inPosition, 1.0);
+    vec2 worldXZ  = worldPos.xz;
 
-vec3 animPos = inPosition + vec3(swayX, 0.0, swayZ);
+    vec2  windN    = (dot(m_WindDir, m_WindDir) > 0.001) ? normalize(m_WindDir) : vec2(0.0, 1.0);
+    vec2  perpN    = vec2(-windN.y, windN.x);
+    float wavePhase = dot(worldXZ, windN);
+    float randPhase = fract(sin(dot(worldXZ, vec2(127.1, 311.7))) * 43758.5453) * 6.2832;
 
-gl_Position = g_WorldViewProjectionMatrix * vec4(animPos, 1.0);
-texCoord = inTexCoord;
-worldNormal = normalize((g_WorldMatrix * vec4(inNormal, 0.0)).xyz);
-} 
+    float mainSway  = sin(t + wavePhase * 0.08 + randPhase) * windW * m_WindStrength;
+    float crossSway = cos(t * 0.73 + wavePhase * 0.06 + randPhase) * windW * m_WindStrength * 0.25;
+
+    vec3 animPos = inPosition + vec3(
+        windN.x * mainSway + perpN.x * crossSway,
+        0.0,
+        windN.y * mainSway + perpN.y * crossSway
+    );
+
+    gl_Position = g_WorldViewProjectionMatrix * vec4(animPos, 1.0);
+    texCoord    = inTexCoord;
+    worldNormal = normalize((g_WorldMatrix * vec4(inNormal, 0.0)).xyz);
+}