add ImViewzmo, add floating window for QWER(select, translate, rotate, scale) , and add new debug button to floating (Experimental)

Editor/assets/shaders/InfiniteGrid.glsl

@@ -12,9 +12,8 @@ uniform mat4 u_Projection;
 uniform vec3 u_CameraPosition;
 
 out CameraData{
-    mat4 View;
-    mat4 Projection;
-    vec3 CameraPosition;
+    mat4 ViewProjection;
+    vec3 Position;
 }CameraOutput;
 
 out vec3 v_NearPoint;
@@ -31,9 +30,8 @@ void main() {
     v_NearPoint = unprojectPoint(a_Position.x, a_Position.y, 0.0);
     v_FarPoint = unprojectPoint(a_Position.x, a_Position.y, 1.0);
 
-    CameraOutput.View = u_View;
-    CameraOutput.Projection = u_Projection;
-    CameraOutput.CameraPosition = u_CameraPosition;
+    CameraOutput.ViewProjection = u_Projection * u_View;
+    CameraOutput.Position = u_CameraPosition;
 
     gl_Position = vec4(a_Position, 1.0);
 }
@@ -47,22 +45,21 @@ in vec3 v_NearPoint;
 in vec3 v_FarPoint;
 
 in CameraData{
-    mat4 View;
-    mat4 Projection;
-    vec3 CameraPosition;
+    mat4 ViewProjection;
+    vec3 Position;
 }CameraInput;
 
 // Grid plane: 0 = XZ (Y up), 1 = XY (Z forward), 2 = YZ (X right)
-uniform int u_GridPlane = 0;
-uniform float u_GridScale = 1.0;
-uniform vec4 u_GridColorThin = vec4(0.5, 0.5, 0.5, 0.4);
-uniform vec4 u_GridColorThick = vec4(0.5, 0.5, 0.5, 0.6);
-uniform vec4 u_AxisColorX = vec4(0.9, 0.2, 0.2, 1.0);
-uniform vec4 u_AxisColorZ = vec4(0.2, 0.2, 0.9, 1.0);
-uniform float u_FadeDistance = 500.0;
+uniform int u_GridPlane;
+uniform float u_GridScale;
+uniform vec4 u_GridColorThin;
+uniform vec4 u_GridColorThick;
+uniform vec4 u_AxisColorX;
+uniform vec4 u_AxisColorZ;
+uniform float u_FadeDistance;
 
 float computeDepth(vec3 pos) {
-    vec4 clipSpacePos = CameraInput.Projection * CameraInput.View * vec4(pos, 1.0);
+    vec4 clipSpacePos = CameraInput.ViewProjection * vec4(pos, 1.0);
     return clipSpacePos.z / clipSpacePos.w;
 }
 
@@ -155,11 +152,11 @@ void main() {
     // === Fading ===
 
     // Radial fade
-    float dist = length(fragPos3D - CameraInput.CameraPosition);
+    float dist = length(fragPos3D - CameraInput.Position);
     float radialFade = 1.0 - smoothstep(u_FadeDistance * 0.3, u_FadeDistance, dist);
 
     // Normal fade (view angle)
-    vec3 viewDir = normalize(fragPos3D - CameraInput.CameraPosition);
+    vec3 viewDir = normalize(fragPos3D - CameraInput.Position);
     float viewAngle = getViewAngleComponent(viewDir);
     float normalFade = smoothstep(0.0, 0.15, viewAngle);
 
@@ -179,7 +176,8 @@ void main() {
 
     // LOD blend
     vec2 deriv1 = fwidth(gridCoord1);
-    float lodFactor = smoothstep(0.3, 0.6, max(deriv1.x, deriv1.y));
+    float lodFactor = smoothstep(20.0, 200.0, dist);
+//    float lodFactor = smoothstep(0.2, 0.5, max(deriv1.x, deriv1.y));
 
     // Combine grids
     float gridIntensity = mix(max(grid1, grid10 * 0.7), grid10, lodFactor);