void
RLight::pickingRender(const magnet::GL::Camera& cam,
const uint32_t offset)
{
if (!_visible) return;
using namespace magnet::GL;
magnet::math::Vector loc = getEyeLocationObjSpace();
GLfloat pos[3] = {loc[0], loc[1], loc[2]};
std::vector<GLfloat> position(pos, pos + 3);
_glposition.init(position);
_context->cleanupAttributeArrays();
//Set the normals to zero so it is fully illuminated
_context->setAttribute(Context::instanceScaleAttrIndex, 0.05, 0.05, 0.05, 1);
_context->setAttribute(Context::vertexColorAttrIndex,
(offset % 256) / 255.0,
((offset / 256) % 256) / 255.0,
(((offset / 256) / 256) % 256) / 255.0,
((((offset / 256) / 256) / 256) % 256) / 255.0);
_sphereShader.attach();
_sphereShader["ProjectionMatrix"] = cam.getProjectionMatrix();
_sphereShader["ViewMatrix"] = cam.getViewMatrix();
_sphereShader["global_scale"] = GLfloat(1.0);
_glposition.drawArray(magnet::GL::element_type::POINTS, 3);
_sphereShader.detach();
}
inline virtual void invoke(GLint colorTextureUnit, size_t width, size_t height,
const magnet::GL::Camera& vp)
{
_filter.attach();
_filter["u_Texture0"] = colorTextureUnit;
_filter["u_Texture1"] = 0;
_filter["u_Texture2"] = 2;
_filter["nearDist"] = vp.getZNear();
_filter["farDist"] = vp.getZFar();
_filter["focalDistance"] = _focalLength;
_filter["focalRange"] = _focalWidth;
_filter.invoke();
_filter.detach();
}
/*! \brief Returns a projected light position.
*/
magnet::math::Vector getEyespacePosition(const magnet::GL::Camera& camera) const
{
magnet::math::Vector vec = getPosition();
std::tr1::array<GLfloat, 4> lightPos = {{GLfloat(vec[0]), GLfloat(vec[1]), GLfloat(vec[2]), 1.0f}};
std::tr1::array<GLfloat, 4> lightPos_eyespace
= camera.getViewMatrix() * lightPos;
return magnet::math::Vector(lightPos_eyespace[0], lightPos_eyespace[1],
lightPos_eyespace[2]);
}
void
RLight::glRender(const magnet::GL::Camera& cam,
RenderMode mode)
{
if (!_visible) return;
using namespace magnet::GL;
if (mode & RenderObj::COLOR)
{
magnet::math::Vector loc = getEyeLocationObjSpace();
GLfloat pos[3] = {loc[0], loc[1], loc[2]};
std::vector<GLfloat> position(pos, pos + 3);
_glposition.init(position);
_context->cleanupAttributeArrays();
//Set the normals to zero so it is fully illuminated
_context->setAttribute(Context::instanceScaleAttrIndex, 0.05, 0.05, 0.05, 1);
_context->setAttribute(Context::vertexColorAttrIndex, 1, 1, 1, 1);
if (_context->testExtension("GL_ARB_sample_shading"))
{
#ifndef GL_SAMPLE_SHADING
# define GL_SAMPLE_SHADING GL_SAMPLE_SHADING_ARB
#endif
glEnable(GL_SAMPLE_SHADING);
glMinSampleShadingARB(1.0);
}
_sphereShader.attach();
_sphereShader["ProjectionMatrix"] = cam.getProjectionMatrix();
_sphereShader["ViewMatrix"] = cam.getViewMatrix();
_sphereShader["global_scale"] = GLfloat(1.0);
_glposition.drawArray(magnet::GL::element_type::POINTS, 3);
_sphereShader.detach();
if (_context->testExtension("GL_ARB_sample_shading"))
glDisable(GL_SAMPLE_SHADING);
}
}
void SSAOWrapper::invoke(GLint colorTextureUnit,
size_t width, size_t height,
const magnet::GL::Camera& vp)
{
glActiveTextureARB(GL_TEXTURE7);
glBindTexture(GL_TEXTURE_2D, _randomTexture);
_filter.attach();
_filter["radius"] = _radius;
_filter["totStrength"] = _totStrength;
_filter["depthDropoff"] = _dropoff;
_filter["offset"] = GLfloat(std::max(width, height)) / _randomTextureSize;
_filter["NormalsTex"] = 1;
_filter["EyePosTex"] = 2;
_filter["rnm"] = 7;
_filter["ProjectionMatrix"] = vp.getProjectionMatrix();
_filter["ViewMatrix"] = vp.getViewMatrix();
_filter.invoke();
_filter.detach();
}
void
RTSpheres::sortTick(const magnet::GL::Camera& camera)
{
cl_float4 campos = getclVec(camera.getEyeLocation());
cl_float4 camdir = getclVec(camera.getCameraDirection());
cl_float4 camup = getclVec(camera.getCameraUp());
//Generate the sort data
_sortDataKernelFunc(_spherePositions, _sortKeys, _sortData,
campos, camdir, camup,
(cl_float)camera.getAspectRatio(),
(cl_float)camera.getZNear(),
(cl_float)camera.getFOVY(),
_N);
if ((_renderDetailLevels.size() > 2)
|| (_renderDetailLevels.front()._nSpheres != _N))
sortFunctor(_sortKeys, _sortData);
recolor();
}
void
Console::interfaceRender(const magnet::GL::Camera& camera)
{
//Only draw if the console has something in it or if it's visible
if (_consoleEntries.empty() || !_visible) return;
//Disable anything that might affect the rastering
glDisable(GL_DEPTH_TEST);
using namespace magnet::GL;
Context& context = _axis.getContext();
//Draw the console in orthograpic projection
context.cleanupAttributeArrays();
// if (_showConsole->get_active())
// {
// float lineHeight = _consoleFont->FaceSize() / (0.5f * _viewPort->getHeight());
// float consoleHeight = 1.0f - lineHeight;
//
// //Calculate how long since the last redraw
// int tdelta = glutGet(GLUT_ELAPSED_TIME) - _glutLastTime;
// _glutLastTime = glutGet(GLUT_ELAPSED_TIME);
//
// glColor3f(_consoleTextColor[0], _consoleTextColor[1],
// _consoleTextColor[2]);
//
// glRasterPos3f(-1.0, consoleHeight, 0);
// _consoleLayout->Render(_consoleEntries.front().second.c_str());
// consoleHeight -= lineHeight;
//
// for (std::list<consoleEntry>::iterator iPtr = ++_consoleEntries.begin();
// iPtr != _consoleEntries.end();)
// {
// //Fade the color based on it's time in the queue
// glColor4f(_consoleTextColor[0], _consoleTextColor[1],
// _consoleTextColor[2], 1.0f - iPtr->first / 1000.0f);
// glRasterPos3f(-1, consoleHeight, 0);
// _consoleLayout->Render(iPtr->second.c_str());
// iPtr->first += tdelta;
// consoleHeight -= lineHeight;
//
// std::list<consoleEntry>::iterator prev = iPtr++;
// //If this element is invisible, erase it
// if (prev->first > 1000) _consoleEntries.erase(prev);
// }
// }
if (_showAxis->get_active())
{
/////////////////RENDER THE AXIS//////////////////////////////////////////////
const GLdouble nearPlane = 0.1,
axisScale = 0.09;
//The axis is in a little 100x100 pixel area in the lower left
std::tr1::array<GLint, 4> oldviewport = context.getViewport();
context.setViewport(0,0,100,100);
std::tr1::array<GLfloat, 16> oldproj
= context.getAttachedShader()["ProjectionMatrix"].as<std::tr1::array<GLfloat, 16> >();
std::tr1::array<GLfloat, 16> oldview
= context.getAttachedShader()["ViewMatrix"].as<std::tr1::array<GLfloat, 16> >();
GLMatrix viewMatrix
= GLMatrix::translate(0, 0, -(nearPlane + axisScale))
* GLMatrix::rotate(camera.getTilt(), Vector(1, 0, 0))
* GLMatrix::rotate(camera.getPan(), Vector(0, 1, 0))
* GLMatrix::scale(axisScale, axisScale, axisScale);
GLMatrix projectionMatrix
= GLMatrix::perspective(45, 1, nearPlane, 1000);
context.getAttachedShader()["ViewMatrix"] = viewMatrix;
context.getAttachedShader()["ProjectionMatrix"] = projectionMatrix;
context.color(0.5f,0.5f,0.5f,0.8f);
_axis.glRender();
_cairoOverlay.glRender(projectionMatrix * viewMatrix);
context.setViewport(oldviewport);
context.getAttachedShader()["ProjectionMatrix"] = oldproj;
context.getAttachedShader()["ViewMatrix"] = oldview;
}
//Restore GL state
glEnable(GL_DEPTH_TEST);
}
void Console::glRender(magnet::GL::FBO&, const magnet::GL::Camera& camera, RenderMode mode)
{
if (_showGrid->get_active())
{
using namespace magnet::GL;
Context& context = _axis.getContext();
GLMatrix old_model_view
= context.getAttachedShader()["ViewMatrix"].as<std::tr1::array<GLfloat, 16> >();
context.getAttachedShader()["ViewMatrix"]
= old_model_view
* GLMatrix::translate(camera.getViewPlanePosition())
* GLMatrix::rotate(-camera.getPan(), Vector(0, 1, 0))
* GLMatrix::rotate(-camera.getTilt(), Vector(1, 0, 0));
context.color(1,1,1,1);
//Back face
context.setAttribute(Context::instanceOriginAttrIndex, 0, 0, -camera.getScreenPlaneWidth(), 0);
context.setAttribute(Context::instanceScaleAttrIndex,
camera.getScreenPlaneWidth(),
camera.getScreenPlaneHeight(), 1);
_grid.glRender();
//Sides
context.setAttribute(Context::instanceOriginAttrIndex,
0.5 * camera.getScreenPlaneWidth(), 0,
-0.5 * camera.getScreenPlaneWidth(), 0);
context.rotation(M_PI / 2, Vector(0, 1, 0));
_grid.glRender(); //Right side
context.setAttribute(Context::instanceOriginAttrIndex,
-0.5 * camera.getScreenPlaneWidth(), 0,
-0.5 * camera.getScreenPlaneWidth(), 0);
_grid.glRender(); //Left side
//Top and bottom
context.rotation(M_PI / 2, Vector(1, 0, 0));
context.setAttribute(Context::instanceScaleAttrIndex,
camera.getScreenPlaneWidth(),
camera.getScreenPlaneWidth(), 1);
context.setAttribute(Context::instanceOriginAttrIndex, 0,
-0.5 * camera.getScreenPlaneHeight(),
-0.5 * camera.getScreenPlaneWidth(), 0);
_grid.glRender();//bottom
context.setAttribute(Context::instanceOriginAttrIndex, 0,
0.5 * camera.getScreenPlaneHeight(),
-0.5 * camera.getScreenPlaneWidth(), 0);
_grid.glRender();//top
context.getAttachedShader()["ViewMatrix"] = old_model_view;
}
}
