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basic cubemap rendering

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This commit is contained in:
Miloslav Číž 2017-11-07 15:02:01 +01:00
parent 7feba7e498
commit ce55d7c2f5
2 changed files with 36 additions and 4 deletions
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38
apps/openmw/mwrender/renderingmanager.cpp
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@ -16,6 +16,8 @@
#include <osgUtil/LineSegmentIntersector> #include <osgUtil/LineSegmentIntersector>
#include <osgUtil/IncrementalCompileOperation> #include <osgUtil/IncrementalCompileOperation>
#include <osg/ImageUtils>
#include <osgViewer/Viewer> #include <osgViewer/Viewer>
#include <components/resource/resourcesystem.hpp> #include <components/resource/resourcesystem.hpp>
@ -622,10 +624,37 @@ namespace MWRender
void RenderingManager::screenshot360(osg::Image* image, int w) void RenderingManager::screenshot360(osg::Image* image, int w)
{ {
screenshot(image,w,w); osg::Vec3 directions[6] = {
osg::Vec3(0,0,-1),
osg::Vec3(-1,0,0),
osg::Vec3(0,0,1),
osg::Vec3(1,0,0),
osg::Vec3(0,1,0),
osg::Vec3(0,-1,0),
};
double fovBackup = mFieldOfView;
mFieldOfView = 90.0; // each side sees 90 degrees
for (int i = 0; i < 6; i++) // for each cube side
{
osg::ref_ptr<osg::Image> sideImage (new osg::Image);
screenshot(sideImage.get(),w,w,directions[i]);
if (i == 0)
{
image->allocateImage(w * 6,w,sideImage->r(),sideImage->getPixelFormat(),sideImage->getDataType());
std::cout << image->s() << " " << image->t() << std::endl;
} }
void RenderingManager::screenshot(osg::Image *image, int w, int h) osg::copyImage(sideImage.get(),0,0,0,sideImage->s(),sideImage->t(),sideImage->r(),
image,w * i,0,0);
}
mFieldOfView = fovBackup;
}
void RenderingManager::screenshot(osg::Image *image, int w, int h, osg::Vec3 direction)
{ {
osg::ref_ptr<osg::Camera> rttCamera (new osg::Camera); osg::ref_ptr<osg::Camera> rttCamera (new osg::Camera);
rttCamera->setNodeMask(Mask_RenderToTexture); rttCamera->setNodeMask(Mask_RenderToTexture);
@ -634,7 +663,10 @@ namespace MWRender
rttCamera->setReferenceFrame(osg::Camera::ABSOLUTE_RF); rttCamera->setReferenceFrame(osg::Camera::ABSOLUTE_RF);
rttCamera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT, osg::Camera::PIXEL_BUFFER_RTT); rttCamera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT, osg::Camera::PIXEL_BUFFER_RTT);
rttCamera->setProjectionMatrixAsPerspective(mFieldOfView, w/float(h), mNearClip, mViewDistance); rttCamera->setProjectionMatrixAsPerspective(mFieldOfView, w/float(h), mNearClip, mViewDistance);
rttCamera->setViewMatrix(mViewer->getCamera()->getViewMatrix()); rttCamera->setViewMatrix(
mViewer->getCamera()->getViewMatrix() * osg::Matrixd::rotate(osg::Vec3(0,0,-1),direction)
);
rttCamera->setViewport(0, 0, w, h); rttCamera->setViewport(0, 0, w, h);
osg::ref_ptr<osg::Texture2D> texture (new osg::Texture2D); osg::ref_ptr<osg::Texture2D> texture (new osg::Texture2D);

2
apps/openmw/mwrender/renderingmanager.hpp
View file

@ -125,7 +125,7 @@ namespace MWRender
void setWaterHeight(float level); void setWaterHeight(float level);
/// Take a screenshot of w*h onto the given image, not including the GUI. /// Take a screenshot of w*h onto the given image, not including the GUI.
void screenshot(osg::Image* image, int w, int h); void screenshot(osg::Image* image, int w, int h, osg::Vec3 direction=osg::Vec3(0,0,-1));
void screenshot360(osg::Image* image, int w); void screenshot360(osg::Image* image, int w);
struct RayResult struct RayResult