void BoundsVisualiser::Draw(const Eegeo::v3& minExtents, const Eegeo::v3& maxExtents)
{
Build(minExtents, maxExtents);
Eegeo_GL(glUseProgram(m_pShader->m_programHandle));
Eegeo::m44 mvp;
Eegeo::m44 w;
w.Identity();
Eegeo::m44::Mul(mvp, renderContext.GetViewProjectionMatrix(), w);
Eegeo_GL(glUniformMatrix4fv(m_pShader->m_mvpUniform, 1, 0, (const GLfloat*)&mvp));
Eegeo_GL(glEnableVertexAttribArray(m_pShader->m_positionSlot));
Eegeo_GL(glBindBuffer(GL_ARRAY_BUFFER, m_glVertexBuffer));
Eegeo_GL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_glIndexBuffer));
Eegeo_GL(glVertexAttribPointer(m_pShader->m_positionSlot, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), 0));
for(u32 j = 0; j < NumIndices; j+=3)
{
Eegeo_GL(glDrawElements(GL_LINE_LOOP, 3, GL_UNSIGNED_SHORT, (void*)(j * 2)));
}
Eegeo_GL(glBindBuffer (GL_ARRAY_BUFFER, 0));
Eegeo_GL(glBindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0));
DestroyGeometry();
}
//
// Builds (or rebuilds) the geometry for a route.
//
void vtRoute::BuildGeometry(vtHeightField3d *pHeightField)
{
if (!m_bDirty)
return;
if (m_bBuilt)
DestroyGeometry();
// create surface and shape
_AddRouteMeshes(pHeightField);
m_bBuilt = true;
m_bDirty = false;
}
/**
* Build (or rebuild) the geometry for a fence.
*/
bool vtFence3d::CreateNode(vtTerrain *pTerr)
{
bool bHighlighted = (m_pHighlightMesh != NULL);
if (m_bBuilt)
{
// was build before; destroy meshes in order to re-build
DestroyGeometry();
}
else
{
m_pFenceGeom = new vtGeode;
m_pFenceGeom->setName("Fence");
m_pFenceGeom->SetMaterials(GetSharedMaterialArray());
}
// create surface and shape
AddFenceMeshes(pTerr->GetHeightField());
if (bHighlighted)
ShowBounds(true);
m_bBuilt = true;
return true;
}
void vtFence3d::DeleteNode()
{
DestroyGeometry();
m_pFenceGeom = NULL;
}
