Lothario
/
axmol
mirror of https://github.com/axmolengine/axmol.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Added getInverseViewMatrix

This commit is contained in:
songchengjiang 2014-08-29 10:42:02 +08:00
parent f5ea9a2219
commit 96e6595e95
3 changed files with 22 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
cocos/3d/CCBillBoard.cpp
View File

@ -93,28 +93,19 @@ BillBorad* BillBorad::create()
void BillBorad::draw(Renderer *renderer, const Mat4 &transform, uint32_t flags)
{
auto camera = Camera::getVisitingCamera();
Mat4 viewInverseMat = camera->getViewMatrix().getInversed();
Mat4 viewInverseMat = camera->getInverseViewMatrix();
viewInverseMat.m[12] = viewInverseMat.m[13] = viewInverseMat.m[14] = 0;
Mat4 transMat = transform;
transMat *= viewInverseMat;
// Don't do calculate the culling if the transform was not updated
_insideBounds = (flags & FLAGS_TRANSFORM_DIRTY) ? renderer->checkVisibility(transMat, _contentSize) : _insideBounds;
//// 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(_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->addTransparentCommand(&_quadCommand);
}
}
}

12
cocos/base/CCCamera.cpp
View File

@ -102,6 +102,18 @@ const Mat4& Camera::getViewMatrix() const
}
return _view;
}
const Mat4& Camera::getInverseViewMatrix() const
{
Mat4 viewInv(getNodeToWorldTransform());
static int count = sizeof(float) * 16;
if (memcmp(viewInv.m, _viewInv.m, count) != 0)
{
_viewProjectionDirty = true;
_viewInv = viewInv;
_view = viewInv.getInversed();
}
return _viewInv;
}
void Camera::lookAt(const Vec3& lookAtPos, const Vec3& up)
{
Vec3 upv = up;

6
cocos/base/CCCamera.h
View File

@ -120,6 +120,12 @@ public:
* @return The camera view matrix.
*/
const Mat4& getViewMatrix() const;
/**
* Gets the camera's inverse view matrix.
*
* @return The camera inverse view matrix.
*/
const Mat4& getInverseViewMatrix() const;
/**get view projection matrix*/
const Mat4& getViewProjectionMatrix() const;