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openmw-tes3mp/apps/openmw/mwrender/bulletdebugdraw.hpp
fredzio 5215ffd964 The debug drawer rely on Bullet to determines the vertices of collision
shapes. It doesn't work in the case of spheres (used by projectiles):
resulting shape is malformed. It can also leads to this error which
makes the debug drawer non-working till game restart:
CullVisitor::apply(Geode&) detected NaN,
    depth=nan, center=(nan nan nan),
    matrix={
       -0.265814 -0.0639702 0.9619 0
       0.964024 -0.0176387 0.265228 0
       -4.29769e-09 0.997796 0.0663574 0
       18178.6 -3550.91 42154.4 1
}

Avoid this issue by using osg::Sphere

While here, remove an unused function. We don't use Bullet's solver so
we never have any contact points (in Bullet parlance).
2021-01-01 17:47:12 +01:00

81 lines
2 KiB
C++

#ifndef OPENMW_MWRENDER_BULLETDEBUGDRAW_H
#define OPENMW_MWRENDER_BULLETDEBUGDRAW_H
#include <chrono>
#include <vector>
#include <osg/ref_ptr>
#include <osg/Array>
#include <osg/PrimitiveSet>
#include <LinearMath/btIDebugDraw.h>
class btCollisionWorld;
namespace osg
{
class Group;
class Geometry;
}
namespace MWRender
{
class DebugDrawer : public btIDebugDraw
{
private:
struct CollisionView
{
btVector3 mOrig;
btVector3 mEnd;
std::chrono::time_point<std::chrono::steady_clock> mCreated;
CollisionView(btVector3 orig, btVector3 normal) : mOrig(orig), mEnd(orig + normal * 20), mCreated(std::chrono::steady_clock::now()) {};
};
std::vector<CollisionView> mCollisionViews;
osg::ref_ptr<osg::Group> mShapesRoot;
protected:
osg::ref_ptr<osg::Group> mParentNode;
btCollisionWorld *mWorld;
osg::ref_ptr<osg::Geometry> mGeometry;
osg::ref_ptr<osg::Vec3Array> mVertices;
osg::ref_ptr<osg::Vec4Array> mColors;
osg::ref_ptr<osg::DrawArrays> mDrawArrays;
bool mDebugOn;
void createGeometry();
void destroyGeometry();
public:
DebugDrawer(osg::ref_ptr<osg::Group> parentNode, btCollisionWorld *world, int debugMode = 1);
~DebugDrawer();
void step();
void drawLine(const btVector3& from,const btVector3& to,const btVector3& color) override;
void addCollision(const btVector3& orig, const btVector3& normal);
void showCollisions();
void drawContactPoint(const btVector3& PointOnB,const btVector3& normalOnB,btScalar distance,int lifeTime,const btVector3& color) override {};
void drawSphere(btScalar radius, const btTransform& transform, const btVector3& color) override;
void reportErrorWarning(const char* warningString) override;
void draw3dText(const btVector3& location,const char* textString) override {}
//0 for off, anything else for on.
void setDebugMode(int isOn) override;
//0 for off, anything else for on.
int getDebugMode() const override;
};
}
#endif