Soft shadow behind frame handles to make them more visible in contrast.

CMakeLists.txt

@@ -318,6 +318,7 @@ set(VMIX_RSC_FILES
     ./rsc/images/glow.dds
     ./rsc/images/checker.dds
     ./rsc/images/shadow_perspective.dds
+    ./rsc/images/soft_shadow.dds
     ./rsc/mesh/disk.ply
     ./rsc/mesh/circle.ply
     ./rsc/mesh/shadow.ply
@@ -333,6 +334,7 @@ set(VMIX_RSC_FILES
     ./rsc/mesh/border_handles_overlay_filled.ply
     ./rsc/mesh/border_handles_sharp.ply
     ./rsc/mesh/border_handles_menu.ply
+    ./rsc/mesh/border_handles_shadow.ply
     ./rsc/mesh/border_large_sharp.ply
     ./rsc/mesh/border_vertical_overlay.ply
     ./rsc/mesh/perspective_layer.ply

Decorations.cpp

@@ -8,6 +8,7 @@
 #include "BoundingBoxVisitor.h"
 #include "ImageShader.h"
 #include "GlmToolkit.h"
+#include "Resource.h"
 #include "Log.h"
 
 
@@ -159,6 +160,7 @@ Handles::Handles(Type type) : Node(), type_(type)
     static Mesh *handle_corner   = new Mesh("mesh/border_handles_overlay.ply");
     static Mesh *handle_scale    = new Mesh("mesh/border_handles_scale.ply");
     static Mesh *handle_restore  = new Mesh("mesh/border_handles_menu.ply");
+    static Mesh *handle_shadow   = new Mesh("mesh/border_handles_shadow.ply", "images/soft_shadow.dds");
 
     color   = glm::vec4( 1.f, 1.f, 0.f, 1.f);
     if ( type_ == Handles::ROTATE ) {
@@ -175,6 +177,8 @@ Handles::Handles(Type type) : Node(), type_(type)
     }
 
     corner_ = glm::vec2(0.f, 0.f);
+
+    shadow_ = handle_shadow;
 }
 
 Handles::~Handles()
@@ -194,6 +198,8 @@ void Handles::draw(glm::mat4 modelview, glm::mat4 projection)
     if ( !initialized() ) {
         if(handle_ && !handle_->initialized())
             handle_->init();
+        if(shadow_ && !shadow_->initialized())
+            shadow_->init();
         init();
     }
 
@@ -279,6 +285,7 @@ void Handles::draw(glm::mat4 modelview, glm::mat4 projection)
             vec = ( modelview * glm::vec4(1.f, 1.f, 0.f, 1.f) ) + pos;
             ctm = GlmToolkit::transform(vec, rot, glm::vec3(1.f));
             // 3. draw
+            shadow_->draw( ctm, projection );
             handle_->draw( ctm, projection );
         }
         else if ( type_ == Handles::SCALE ){
@@ -290,6 +297,7 @@ void Handles::draw(glm::mat4 modelview, glm::mat4 projection)
             vec = ( modelview * glm::vec4(1.f, -1.f, 0.f, 1.f) ) + pos;
             ctm = GlmToolkit::transform(vec, rot, glm::vec3(mirror.x, mirror.y, 1.f));
             // 3. draw
+            shadow_->draw( ctm, projection );
             handle_->draw( ctm, projection );
         }
         else if ( type_ == Handles::MENU ){
@@ -301,6 +309,7 @@ void Handles::draw(glm::mat4 modelview, glm::mat4 projection)
             vec = ( modelview * glm::vec4(-1.f, 1.f, 0.f, 1.f) ) + pos;
             ctm = GlmToolkit::transform(vec, rot, glm::vec3(1.f));
             // 3. draw
+            shadow_->draw( ctm, projection );
             handle_->draw( ctm, projection );
         }
     }

Decorations.h

@@ -52,6 +52,7 @@ public:
 
 protected:
     Primitive *handle_;
+    Primitive *shadow_;
     glm::vec2 corner_;
     Type type_;
 

rsc/mesh/border_handles_shadow.ply

@@ -0,0 +1,22 @@
+ply
+format ascii 1.0
+comment Created by Blender 2.90.1 - www.blender.org
+element vertex 4
+property float x
+property float y
+property float z
+property float s
+property float t
+property uchar red
+property uchar green
+property uchar blue
+property uchar alpha
+element face 2
+property list uchar uint vertex_indices
+end_header
+0.1500000 -0.1500000 0.000000 1.000000 0.000000 255 255 255 45
+-0.1500000 0.1500000 0.000000 0.000000 1.000000 255 255 255 45
+-0.1500000 -0.1500000 0.000000 0.000000 0.000000 255 255 255 45
+0.1500000 0.1500000 0.000000 1.000000 1.000000 255 255 255 45
+3 0 1 2
+3 0 3 1