calculated Z in View

Transparent Render

cocos/3d/CCBillBoard.cpp

@@ -23,10 +23,12 @@
  ****************************************************************************/
 
 #include "3d/CCBillBoard.h"
+#include "3d/CCMeshVertexIndexData.h"
 #include "2d/CCSpriteFrameCache.h"
 #include "base/CCDirector.h"
 #include "base/CCCamera.h"
 #include "renderer/CCRenderer.h"
+#include "renderer/CCGLProgramCache.h"
 
 NS_CC_BEGIN
 
@@ -37,7 +39,6 @@ BillBorad::BillBorad()
 
 BillBorad::~BillBorad()
 {
-
 }
 
 BillBorad* BillBorad::createWithTexture(Texture2D *texture)
@@ -91,27 +92,30 @@ BillBorad* BillBorad::create()
 
 void BillBorad::draw(Renderer *renderer, const Mat4 &transform, uint32_t flags)
 {
-    calculateBillBoradMatrix(_BillBoradMat);
+    auto camera = Camera::getVisitingCamera();
+    Mat4 viewInverseMat =  camera->getViewMatrix().getInversed();
+    viewInverseMat.m[12] = viewInverseMat.m[13] = viewInverseMat.m[14] = 0;
+
     Mat4 transMat = transform;
-    transMat *= _BillBoradMat;
+    transMat *= viewInverseMat;
     // Don't do calculate the culling if the transform was not updated
     _insideBounds = (flags & FLAGS_TRANSFORM_DIRTY) ? renderer->checkVisibility(transMat, _contentSize) : _insideBounds;
 
     if(_insideBounds)
+    {
+        if (_displayedOpacity < 255)
+        {
+            Mat4 modelViewMat = camera->getViewMatrix() * transMat;
+            _quadCommand.init(-modelViewMat.m[14], _texture->getName(), getGLProgramState(), _blendFunc, &_quad, 1, transMat);
+            renderer->addTransparentCommand(&_quadCommand);
+        }
+        else
         {
             _quadCommand.init(_globalZOrder, _texture->getName(), getGLProgramState(), _blendFunc, &_quad, 1, transMat);
             renderer->addCommand(&_quadCommand);
         }
+
     }
-
-void BillBorad::calculateBillBoradMatrix(Mat4 &dst)
-{
-    auto camera = Camera::getVisitingCamera();
-    dst =  camera->getViewMatrix().getInversed();
-
-    dst.m[12]=0;
-    dst.m[13]=0;
-    dst.m[14]=0;
 }
 
 NS_CC_END

cocos/3d/CCBillBoard.h

@@ -26,9 +26,11 @@
 #define __CCBILLBOARD_H__
 
 #include "2d/CCSprite.h"
+#include "renderer/CCMeshCommand.h"
 
 NS_CC_BEGIN
 
+class MeshIndexData;
 /**
  * Inherit from Sprite, achieve BillBorad.
  */
@@ -84,11 +86,6 @@ CC_CONSTRUCTOR_ACCESS:
     BillBorad();
     virtual ~BillBorad();
 
-protected:
-    Mat4      _BillBoradMat;
-
-    void calculateBillBoradMatrix(Mat4 &dst);
-
 private:
     CC_DISALLOW_COPY_AND_ASSIGN(BillBorad);
 

cocos/renderer/CCRenderer.cpp

@@ -396,6 +396,7 @@ void Renderer::visitTransparentRenderQueue(const TransparentRenderQueue& queue)
             auto cmd = static_cast<QuadCommand*>(command);
             
             _batchedQuadCommands.push_back(cmd);
+            _numQuads = cmd->getQuadCount();
             memcpy(_quads, cmd->getQuads(), sizeof(V3F_C4B_T2F_Quad) * cmd->getQuadCount());
             convertToWorldCoordinates(_quads, cmd->getQuadCount(), cmd->getModelView());
             drawBatchedQuads();
@@ -459,7 +460,9 @@ void Renderer::render()
         if (_transparentRenderGroups.size())
         {
             _transparentRenderGroups.sort();
+            glEnable(GL_DEPTH_TEST);
             visitTransparentRenderQueue(_transparentRenderGroups);
+            glDisable(GL_DEPTH_TEST);
         }
     }
     clean();

tests/cpp-tests/Classes/Sprite3DTest/Sprite3DTest.cpp

@@ -1549,9 +1549,9 @@ BillBoardTest::BillBoardTest()
         _layerBillBorad->addChild(_camera);
     }
     
-    addNewBillBoradWithCoords(Vec3(20,0,0));
+    addNewBillBoradWithCoords(Vec3(20,5,0));
     addNewAniBillBoradWithCoords(Vec3(-20,0,0));
-    _camera->setPosition3D(Vec3(0, 130, 130));
+    _camera->setPosition3D(Vec3(0, 0, 130));
     _camera->lookAt(Vec3(0,0,0), Vec3(0,1,0));
 
     for( int j =-20; j<=20 ;j++)
@@ -1566,7 +1566,7 @@ BillBoardTest::BillBoardTest()
     //draw y
     //line->drawLine(Vec3(0, -50, 0),Vec3(0,0,0),Color4F(0,0.5,0,1));
     //line->drawLine(Vec3(0, 0, 0),Vec3(0,50,0),Color4F(0,1,0,1));
-    _layerBillBorad->addChild(line,1);
+    _layerBillBorad->addChild(line);
 
     TTFConfig ttfConfig("fonts/arial.ttf", 20);
     auto label1 = Label::createWithTTF(ttfConfig,"rotate+");
@@ -1601,26 +1601,36 @@ void BillBoardTest::addNewBillBoradWithCoords(Vec3 p)
     _billborad->setScale(0.5f);
     _layerBillBorad->addChild(_billborad,10);
     _billborad->setPosition(Vec2( p.x,p.y ));
+    _billborad->setBlendFunc(cocos2d::BlendFunc::ALPHA_PREMULTIPLIED);
+    _billborad->setOpacity(200);
 
     auto billborad1 = BillBorad::create("Images/Icon.png");
     billborad1->setScale(0.5f);
     _layerBillBorad->addChild(billborad1,10);
     billborad1->setPosition3D(Vec3(p.x,p.y,p.z - 130));
+    billborad1->setBlendFunc(cocos2d::BlendFunc::ALPHA_PREMULTIPLIED);
+    billborad1->setOpacity(200);
 
     auto billborad2 = BillBorad::create("Images/Icon.png");
     billborad2->setScale(0.5f);
     _layerBillBorad->addChild(billborad2,10);
     billborad2->setPosition3D(Vec3(p.x,p.y,p.z + 50));
+    billborad2->setBlendFunc(cocos2d::BlendFunc::ALPHA_PREMULTIPLIED);
+    billborad2->setOpacity(200);
 
     auto billborad3 = BillBorad::create("Images/Icon.png");
     billborad3->setScale(0.5f);
     _layerBillBorad->addChild(billborad3,10);
     billborad3->setPosition3D(Vec3(p.x,p.y,p.z + 90));
+    billborad3->setBlendFunc(cocos2d::BlendFunc::ALPHA_PREMULTIPLIED);
+    billborad3->setOpacity(200);
 
     auto billborad4 = BillBorad::create("Images/Icon.png");
     billborad4->setScale(0.5f);
     _layerBillBorad->addChild(billborad4,10);
     billborad4->setPosition3D(Vec3(p.x,p.y,p.z - 60));
+    billborad4->setBlendFunc(cocos2d::BlendFunc::ALPHA_PREMULTIPLIED);
+    billborad4->setOpacity(200);
 
 
 }