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#pragma once
#include "render/View.h"
#include "render/CameraView.h"
#include "registry/registry.h"
#include "selection/SelectionVolume.h"
namespace test
{
namespace algorithm
{
constexpr std::size_t DeviceWidth = 640;
constexpr std::size_t DeviceHeight = 640;
constexpr const char* const RKEY_SELECT_EPSILON = "user/ui/selectionEpsilon";
inline void constructCenteredOrthoview(render::View& view, const Vector3& origin)
{
// Move the orthoview exactly to the center of this object
double scale = 1.0;
Matrix4 projection;
projection[0] = 1.0 / static_cast<double>(DeviceWidth / 2);
projection[5] = 1.0 / static_cast<double>(DeviceHeight / 2);
projection[10] = 1.0 / (32768 * scale);
projection[12] = 0.0;
projection[13] = 0.0;
projection[14] = -1.0;
projection[1] = projection[2] = projection[3] =
projection[4] = projection[6] = projection[7] =
projection[8] = projection[9] = projection[11] = 0.0;
projection[15] = 1.0f;
// Modelview
Matrix4 modelView;
// Translate the view to the center of the brush
modelView[12] = -origin.x() * scale;
modelView[13] = -origin.y() * scale;
modelView[14] = 32768 * scale;
// axis base
modelView[0] = scale;
modelView[1] = 0;
modelView[2] = 0;
modelView[4] = 0;
modelView[5] = scale;
modelView[6] = 0;
modelView[8] = 0;
modelView[9] = 0;
modelView[10] = -scale;
modelView[3] = modelView[7] = modelView[11] = 0;
modelView[15] = 1;
view.construct(projection, modelView, DeviceWidth, DeviceHeight);
}
inline SelectionVolume constructOrthoviewSelectionTest(const render::View& orthoView)
{
render::View scissored(orthoView);
auto epsilon = registry::getValue<float>(RKEY_SELECT_EPSILON);
Vector2 deviceEpsilon(epsilon / DeviceWidth, epsilon / DeviceHeight);
ConstructSelectionTest(scissored, selection::Rectangle::ConstructFromPoint(Vector2(0, 0), deviceEpsilon));
return SelectionVolume(scissored);
}
// Constructs the given view with a camera projection
// - with the view origin being located at three times the bounding box size away (following the view direction)
// - with the given view angles (pitch, yaw, roll)
inline void constructCameraView(render::View& view, const AABB& objectAABB, const Vector3& viewDirection, const Vector3& angles)
{
// Position the camera top-down, similar to what an XY view is seeing
auto objectHeight = std::max(objectAABB.getExtents().getLength(), 20.0); // use a minimum height
Vector3 origin = objectAABB.getOrigin() - (viewDirection * objectHeight * 3);
auto farClip = 32768.0f;
Matrix4 projection = camera::calculateProjectionMatrix(farClip / 4096.0f, farClip, 75.0f, algorithm::DeviceWidth, algorithm::DeviceHeight);
Matrix4 modelview = camera::calculateModelViewMatrix(origin, angles);
view.construct(projection, modelview, algorithm::DeviceWidth, algorithm::DeviceHeight);
}
}
}
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