Depth Shader Update

Runtime/Math/Geometry/Pose.cs

@@ -184,6 +184,7 @@ namespace Rokojori
       return p;
     }
 
+
     public Vector3 Apply( Vector3 p )
     {
       p = rotation * p;
@@ -192,6 +193,12 @@ namespace Rokojori
       return p;
     }
 
+    public void Set( Node3D node )
+    {
+      node.GlobalPosition = position;
+      node.SetGlobalQuaternion( rotation );
+    }
+
     public override string ToString()
     {
       return "Pose{" + RJLog.Stringify( position ) + RJLog.Stringify( rotation ) + "}";

Runtime/Procedural/Mesh/LODMultiMeshInstance3D.cs

@@ -12,10 +12,10 @@ namespace Rokojori
   public partial class LODMultiMeshInstance3D:MultiMeshInstance3D
   {
     [Export]
-    public float cullDistance = 200;
+    public float cullDistance = 5000;
 
     [Export]
-    public float cullRange = 100;
+    public float cullRange = 2000;
 
     [Export]
     public Curve cullCurve = MathX.Curve( 0, 1 );

Runtime/Sensors/SensorManager.cs

@@ -18,7 +18,7 @@ namespace Rokojori
     public SensorGroup[] sensorGroups = [];
 
     [Export]
-    public bool processSensors = false;
+    public bool processSensors = true;
 
     [Export]
     public Node[] autoScanForSensors = [];

Runtime/Shading/Library/Colors.gdshaderinc

@@ -36,6 +36,16 @@ vec3 HSLtoRGB( vec3 hsl )
   return ( rgb - 0.5 ) * C + hsl.z;
 }
 
+vec3 adjustHSL( vec3 color, vec3 hslAdjustment )
+{
+  vec3 hsl = RGBtoHSL( color );
+  hsl += hslAdjustment;
+  hsl.x = mod( hsl.x, 1.0 );
+  hsl = clamp( hsl, 0, 1 );
+
+  return HSLtoRGB( hsl );
+}
+
 vec3 toLinear( vec3 sRGB )
 {
   return mix( pow( (sRGB + vec3( 0.055 )) * ( 1.0 / ( 1.0 + 0.055 )),vec3( 2.4 )),sRGB * ( 1.0 / 12.92 ),lessThan( sRGB,vec3( 0.04045 )) );
@@ -92,6 +102,13 @@ vec3 shiftHSL( vec3 hsl, vec3 offset, float blendRadius )
   return hsl;
 }
 
+vec3 shiftRGBwithHSL( vec3 rgb, vec3 offset, float blendRadius )
+{
+  vec3 hsl = RGBtoHSL( rgb );
+  hsl = shiftHSL( hsl, offset, blendRadius );
+  return HSLtoRGB( hsl );
+}
+
 vec3 RGBtoHSV( vec3 c )
 {
   vec4 K = vec4( 0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0 );
@@ -161,3 +178,12 @@ vec4 blendMode_alpha( vec4 top, vec4 bottom )
   return vec4( color, alpha );
 }
  
+
+vec4 mixThreeColors( vec4 a, vec4 b, vec4 c, float t )
+{
+  float wa = mapClamped( t, 0.0, 0.5, 1.0, 0.0 );   
+  float wb = triangle( t ); 
+  float wc = mapClamped( t, 0.5, 1, 0.0, 1.0 ); 
+
+  return a * wa + b * wb + c * wc;
+}

Runtime/Shading/Library/Depth.gdshaderinc

@@ -0,0 +1,164 @@
+#include "res://addons/rokojori_action_library/Runtime/Shading/Library/Transform.gdshaderinc"
+
+
+float getDepth( sampler2D _depthTexture, vec2 screenUV )
+{
+  return textureLod( _depthTexture, screenUV, 0.0 ).r;
+}
+
+vec3 getDepthViewPositiontAtScreen( sampler2D _depthTexture, vec2 screenUV, mat4 _INV_PROJECTION_MATRIX )
+{
+  float depthValue = getDepth( _depthTexture, screenUV );
+  return screenToView( screenUV, depthValue, _INV_PROJECTION_MATRIX ).xyz;
+}
+
+bool isVisibleAt( sampler2D _depthTexture, vec3 viewPosition, mat4 _PROJECTION_MATRIX, mat4 _INV_PROJECTION_MATRIX )
+{
+  vec2 screenPosition = viewToScreen( viewPosition, _PROJECTION_MATRIX );
+  
+  vec3 depthViewPosition = getDepthViewPositiontAtScreen( _depthTexture, screenPosition, _INV_PROJECTION_MATRIX );
+
+  float visible = viewPosition.z - depthViewPosition.z;
+  
+	return visible > 0.0;
+}
+
+
+bool isInFrontOf( sampler2D _depthTexture, vec3 viewPosition, vec2 screenPosition, mat4 _INV_PROJECTION_MATRIX )
+{  
+  vec3 depthViewPosition = getDepthViewPositiontAtScreen( _depthTexture, screenPosition, _INV_PROJECTION_MATRIX );
+
+  float visible = viewPosition.z - depthViewPosition.z;
+  
+	return visible > 0.0;
+}
+
+bool isInFrontOfDepth( sampler2D _depthTexture, float testDepth, vec2 screenPosition )
+{  
+  float screenDepth = getDepth( _depthTexture, screenPosition );
+  float visible = testDepth - screenDepth;  
+	return visible > 0.0;
+}
+
+float getQuickOcclusionAt( sampler2D _depthTexture, vec3 viewPosition, vec2 uvPixelSize, int maxSteps,  float stride, 
+                           mat4 _PROJECTION_MATRIX, mat4 _INV_PROJECTION_MATRIX )
+{
+  vec4 clipPosition = viewToClip( viewPosition, _PROJECTION_MATRIX );
+  vec2 screenPosition = clipToScreen( clipPosition );
+  float depth = clipPosition.z;
+
+  bool isOccludedAtCenter = ! isInFrontOfDepth( _depthTexture, depth, screenPosition );
+
+  if ( isOccludedAtCenter )
+  {
+    return 0.0;
+  }
+
+
+  float offsetPerLevel = 1.0 / ( float( maxSteps ) + 1.0 );
+  float h2 = pow( 2.0, 0.5 ) / 2.0; 
+
+  vec2[] offsets = 
+  {
+    // vec2( -h2,   -h2  ),
+    vec2(  0.0,  -1.0 ),
+    // vec2(  h2,   -h2 ),
+
+    vec2( -1.0,   0.0 ),
+
+    vec2(  1.0,   0.0 ),
+
+    // vec2( -h2,   h2 ),
+    vec2(  0.0,   1.0 )
+    // vec2(  h2,   h2 )
+  };
+
+  int angles = 4;
+
+  for ( int i = 0; i < maxSteps; i++ )
+  {
+    float occluded = 0.0; 
+    vec2 rayScale = ( 1.0 + float( i ) ) * uvPixelSize * stride;
+
+    for ( int j = 0; j < angles; j++ )
+    {
+      vec2 rayOffset = offsets[ j ] * rayScale;
+      vec2 uvTestPosition = screenPosition + rayOffset; 
+
+      bool stepVisible = isInFrontOfDepth( _depthTexture, depth, uvTestPosition );
+      occluded += stepVisible ? 0.0 : 1.0;
+    }
+
+    if ( occluded > 0.0 )
+    {
+      float occludedSteps = occluded / float( angles );
+      float levelOffset = ( float( i ) + 2.0 ) * offsetPerLevel;
+
+      return levelOffset - occludedSteps * offsetPerLevel;
+    }
+  }
+
+  return 1.0;
+}
+
+
+float getOcclusionAt( sampler2D _depthTexture, vec3 viewPosition, vec2 uvPixelSize, int maxSteps,  float stride, 
+                           mat4 _PROJECTION_MATRIX, mat4 _INV_PROJECTION_MATRIX )
+{
+  vec4 clipPosition = viewToClip( viewPosition, _PROJECTION_MATRIX );
+  vec2 screenPosition = clipToScreen( clipPosition );
+  float depth = clipPosition.z;
+
+
+  float maxOcclusion = 2.0 + float( maxSteps ) * 8.0;
+
+  float occlusion = 0.0;
+
+  bool centerVisible = isInFrontOfDepth( _depthTexture, depth, screenPosition );
+
+  if ( centerVisible )
+  {
+    occlusion += 2.0;
+  }
+
+
+  float h2 = pow( 2.0, 0.5 ) / 2.0; 
+
+  vec2[] offsets = 
+  {
+    vec2( -h2,   -h2  ),
+    vec2(  0.0,  -1.0 ),
+    vec2(  h2,   -h2 ),
+
+    vec2( -1.0,   0.0 ),
+
+    vec2(  1.0,   0.0 ),
+
+    vec2( -h2,   h2 ),
+    vec2(  0.0,   1.0 ),
+    vec2(  h2,   h2 )
+  };
+
+
+
+  for ( int i = 0; i < maxSteps; i++ )
+  {
+    vec2 rayScale = ( 1.0 + float( i ) ) * uvPixelSize * stride;
+
+    for ( int j = 0; j < 8; j++ )
+    {
+      vec2 rayOffset = offsets[ j ] * rayScale;
+      vec2 uvTestPosition = screenPosition + rayOffset; 
+
+      bool stepVisible = isInFrontOfDepth( _depthTexture, depth, uvTestPosition );
+      
+      if ( stepVisible )
+      {
+        occlusion += 1.0;
+      } 
+    }
+
+  }
+
+  return occlusion / maxOcclusion;
+}

Runtime/Shading/Library/Depth.gdshaderinc.uid

@@ -0,0 +1 @@
+uid://dlc8lsj6n22li

Runtime/Shading/Library/Light.gdshaderinc

@@ -1,11 +1,11 @@
-float fresnel( vec3 _NORMAL, vec3 _VIEW, float amount )
+float fresnel( vec3 normal, vec3 view, float amount )
 {
-  return pow( ( 1.0 - clamp( dot( normalize( _NORMAL ), normalize( _VIEW ) ), 0.0, 1.0 ) ), amount );
+  return pow( ( 1.0 - clamp( dot( normalize( normal ), normalize( view ) ), 0.0, 1.0 ) ), amount );
 }
 
-float fresnelNormalized( vec3 _NORMAL, vec3 _VIEW, float amount )
+float fresnelNormalized( vec3 normal, vec3 view, float amount )
 {
-  return pow( ( 1.0 - clamp( dot( _NORMAL, _VIEW ), 0.0, 1.0 ) ), amount);
+  return pow( ( 1.0 - clamp( dot( normal, view ), 0.0, 1.0 ) ), amount);
 }
 
 

Runtime/Shading/Library/Transform.gdshaderinc

@@ -4,7 +4,7 @@ vec3 applyMatrix( vec3 v, mat4 m )
   return ( m * vec4( v, 1.0 ) ).xyz;
 }
 
-vec3 applyMatrixWithTranslation( vec3 v, mat4 m )
+vec3 applyMatrixWithoutTranslation( vec3 v, mat4 m )
 {
   mat4 mw = m;
   mw[ 3 ][ 0 ] = 0.0;
@@ -71,7 +71,7 @@ vec3 worldToViewDirection( vec3 direction, mat4 _VIEW_MATRIX )
 
 vec3 viewToWorld( vec3 view, mat4 _INV_VIEW_MATRIX )
 {
-  return ( _INV_VIEW_MATRIX * vec4( view, 1.0 ) ).xyz;
+  return applyMatrix( view, _INV_VIEW_MATRIX );
 }
 
 vec3 viewToWorldDirection( vec3 view, mat4 _INV_VIEW_MATRIX )
@@ -83,7 +83,7 @@ vec3 viewToWorldDirection( vec3 view, mat4 _INV_VIEW_MATRIX )
   mw[ 3 ][ 3 ] = 1.0;
 
 
-  return ( mw * vec4( view, 1.0 ) ).xyz;
+  return applyMatrix( view, mw );
 }
 
 vec3 viewToLocal( vec3 view, mat4 _INV_VIEW_MATRIX, mat4 _MODEL_MATRIX )
@@ -98,6 +98,63 @@ vec3 viewToLocalDirection( vec3 view, mat4 _INV_VIEW_MATRIX, mat4 _MODEL_MATRIX
   return worldToLocalDirection( world, _MODEL_MATRIX );
 }
 
+vec4 viewToClip( vec3 view, mat4 _PROJECTION_MATRIX )
+{
+  vec4 clip = _PROJECTION_MATRIX * vec4( view, 1.0 ); 
+  clip /= clip.w;
+  return clip;
+}
+
+vec2 clipToScreen( vec4 clip )
+{
+  return ( clip.xy / clip.w ) * 0.5 + vec2( 0.5 );
+}
+
+vec4 screenToClip( vec2 screen, float z )
+{
+  return vec4( screen * 2.0 - 1.0, z, 1.0 );
+}
+
+vec4 clipToView( vec4 clip, mat4 _INV_PROJECTION_MATRIX )
+{
+  vec4 view = _INV_PROJECTION_MATRIX * clip;
+  view /= view.w;
+  return view;
+}
+
+vec4 screenToView( vec2 screen, float z, mat4 _INV_PROJECTION_MATRIX )
+{
+  vec4 clip = screenToClip( screen, z );
+  vec4 view = clipToView( clip, _INV_PROJECTION_MATRIX );
+
+  return view;
+}
+
+vec3 screenToWorld( vec2 screen, float z, mat4 _INV_PROJECTION_MATRIX, mat4 _INV_VIEW_MATRIX  )
+{
+  vec4 view = screenToView( screen, z, _INV_PROJECTION_MATRIX );
+
+  return viewToWorld( view.xyz, _INV_VIEW_MATRIX );
+}
+
+vec2 viewToScreen( vec3 view, mat4 _PROJECTION_MATRIX )
+{
+  vec4 clip = viewToClip( view, _PROJECTION_MATRIX );
+
+  return clipToScreen( clip );
+}
+
+
+vec2 worldToScreen( vec3 world, mat4 _VIEW_MATRIX, mat4 _PROJECTION_MATRIX )
+{
+  vec3 view   = worldToView( world, _VIEW_MATRIX );
+  vec4 clip   = viewToClip( view, _PROJECTION_MATRIX );
+  vec2 screen = clipToScreen( clip );
+
+  return screen;
+}
+
+
 vec3 extractScale( mat3 _MODEL_NORMAL_MATRIX )
 {
   mat3 m = _MODEL_NORMAL_MATRIX;
@@ -142,6 +199,23 @@ vec3 billboardWorldOffset( vec2 _UV, mat4 _INV_VIEW_MATRIX, mat4 _MODEL_MATRIX
   return worldOffset;
 }
 
+vec3 billboardWorldOffsetWithSize( vec2 size, vec2 _UV, mat4 _INV_VIEW_MATRIX, mat4 _MODEL_MATRIX  )
+{
+  vec2 mappedUV = mix( vec2(-1,1), vec2( 1, -1 ), _UV );
+  vec4 offset = vec4( mappedUV.x * size.x, mappedUV.y * size.y, 0, 0 );
+
+  offset = _INV_VIEW_MATRIX * offset;
+  mat4 mw = _MODEL_MATRIX;
+  mw[ 3 ][ 0 ] = 0.0;
+  mw[ 3 ][ 1 ] = 0.0;
+  mw[ 3 ][ 2 ] = 0.0;
+
+  vec3 worldOffset = worldToLocal( offset.xyz, mw );
+  // worldOffset = normalize( worldOffset );
+
+  return worldOffset;
+}
+
 vec2 rotate_v2( vec2 uv, float angle )
 {
   float s = sin( angle );