added radius multiplier to gfx.CPK rendering

modules/gfx/pymod/export_render_options.cc

@@ -91,6 +91,7 @@ void export_RenderOptions()
     .def("GetCPKMode", &CPKRenderOptions::GetSphereMode)
     .add_property("cpk_mode", &CPKRenderOptions::GetSphereMode, 
                   &CPKRenderOptions::SetSphereMode)
+    .add_property("radius_mult",&CPKRenderOptions::GetRadiusMult,&CPKRenderOptions::SetRadiusMult)
   ;
 
   class_<CustomRenderOptions, boost::shared_ptr<CustomRenderOptions>, bases<RenderOptions>, boost::noncopyable>("CustomRenderOptions")

modules/gfx/src/impl/cpk_renderer.cc

@@ -49,21 +49,26 @@ void CPKRenderer::PrepareRendering()
   }
 }
 
-void CPKRenderer::PrepareRendering(GfxView& view, IndexedVertexArray& va, bool is_sel){
+void CPKRenderer::PrepareRendering(GfxView& view, IndexedVertexArray& va, bool is_sel)
+{
   const Color& sel_clr=this->GetSelectionColor();
   float factor=is_sel ? 1.2 : 1.0;
   if(options_!=NULL){
-    va.SetLighting(true);
-    va.SetCullFace(true);
-    va.SetColorMaterial(true);
-    va.SetMode(0x4);
-
-    // draw all spheres
-    for(AtomEntryMap::const_iterator it=view.atom_map.begin();it!=view.atom_map.end();++it) {
-      va.AddSphere(SpherePrim(it->second.atom.GetPos(),
-                              it->second.vdwr*factor,
-                              is_sel? sel_clr : it->second.color),
-                              options_->GetSphereDetail());
+    factor *= options_->GetRadiusMult();
+    if(factor>0.0) {
+      va.SetLighting(true);
+      va.SetCullFace(true);
+      va.SetColorMaterial(true);
+      va.SetMode(0x4);
+      
+      // draw all spheres
+      uint det=options_->GetSphereDetail();
+      for(AtomEntryMap::const_iterator it=view.atom_map.begin();it!=view.atom_map.end();++it) {
+        va.AddSphere(SpherePrim(it->second.atom.GetPos(),
+                                it->second.vdwr*factor,
+                                is_sel? sel_clr : it->second.color),
+                     det);
+      }
     }
   }
   sel_state_=0;
@@ -114,11 +119,12 @@ RenderOptionsPtr CPKRenderer::GetOptions(){
 namespace {
 
 void Render3DSpritesInnerLoop(const AtomEntry* ae, const geom::Vec3& cx, 
-			      const geom::Vec3& cy, const geom::Vec3& cz, 
-			      GLdouble* gl_mmat, GLdouble* gl_pmat, GLint* gl_vp)
+                              const geom::Vec3& cy, const geom::Vec3& cz, 
+                              GLdouble* gl_mmat, GLdouble* gl_pmat, GLint* gl_vp,
+                              float rmul)
 {
   geom::Vec3 pos = ae->atom.GetPos();
-  float rad = ae->vdwr;
+  float rad = rmul*ae->vdwr;
   GLdouble r1[3],r2[3];
   gluProject(pos[0],pos[1],pos[2],
              gl_mmat,gl_pmat,gl_vp,
@@ -144,6 +150,9 @@ void CPKRenderer::Render3DSprites()
 {
 #if OST_SHADER_SUPPORT_ENABLED
   if(options_!=NULL){
+    float rmul= options_->GetRadiusMult();
+    if(rmul==0.0) return;
+
     geom::Mat3 irot=geom::Transpose(Scene::Instance().GetTransform().GetRot());
     geom::Vec3 cx=irot*geom::Vec3(1.0,0.0,0.0);
     geom::Vec3 cy=irot*geom::Vec3(0.0,1.0,0.0);
@@ -168,12 +177,12 @@ void CPKRenderer::Render3DSprites()
     GLint gl_vp[]={0,0,1,1};
 
     glBegin(GL_QUADS);
-
+    
     for(AtomEntryMap::const_iterator it=view_.atom_map.begin();it!=view_.atom_map.end();++it) {
-      Render3DSpritesInnerLoop(&it->second,cx,cy,cz,gl_mmat,gl_pmat,gl_vp);
+      Render3DSpritesInnerLoop(&it->second,cx,cy,cz,gl_mmat,gl_pmat,gl_vp,rmul);
     }
-
     glEnd();
+
     glPopAttrib();
 
     Shader::Instance().PopProgram();

modules/gfx/src/render_options/cpk_render_options.cc

@@ -24,7 +24,7 @@
 
 namespace ost { namespace gfx {
 
-CPKRenderOptions::CPKRenderOptions(): sphere_detail_(4) {
+  CPKRenderOptions::CPKRenderOptions(): sphere_detail_(4),cpk_mode_(0),rad_mult_(1.0) {
 #if OST_SHADER_SUPPORT_ENABLED
   cpk_mode_=1;
 #else
@@ -70,4 +70,15 @@ uint CPKRenderOptions::GetSphereMode(){
   return cpk_mode_;
 }
 
+void CPKRenderOptions::SetRadiusMult(float m)
+{
+  rad_mult_=std::max(0.0f,m);
+  this->NotifyStateChange();
+}
+
+float CPKRenderOptions::GetRadiusMult() const
+{
+  return rad_mult_;
+}
+
 }} // ns

modules/gfx/src/render_options/cpk_render_options.hh

@@ -42,14 +42,21 @@ public:
   virtual void ApplyRenderOptions(RenderOptionsPtr render_options);
 
   // own interface
+  /// number of arc subdivisions per pi/2
   void SetSphereDetail(uint detail);
   uint GetSphereDetail();
+  /// 0 = triangulated spheres, 1 = fast 3D sprites (default)
   void SetSphereMode(uint mode);
   uint GetSphereMode();
+  /// Radius multiplier, default=1.0
+  void SetRadiusMult(float m);
+  float GetRadiusMult() const;
+
 
 private:
   uint sphere_detail_;
   uint cpk_mode_;
+  float rad_mult_;
 };
 
 typedef boost::shared_ptr<CPKRenderOptions> CPKRenderOptionsPtr;