void clickFunc(int button, int state, int x, int y)
{
if (state == GLUT_UP) {
mouseMode = 0;
if (button == GLUT_LEFT_BUTTON && glutGetModifiers() == GLUT_ACTIVE_CTRL) {
Handle<Device::RTCamera> camera = createCamera(AffineSpace3f(g_camSpace.l,g_camSpace.p));
Vector3f p;
bool hit = g_device->rtPick(camera, x / float(g_width), y / float(g_height), g_render_scene, p.x, p.y, p.z);
if (hit) {
Vector3f delta = p - g_camLookAt;
Vector3f right = cross(normalize(g_camUp),normalize(g_camLookAt-g_camPos));
Vector3f offset = dot(delta,right)*right + dot(delta,g_camUp)*g_camUp;
g_camLookAt = p;
g_camPos += offset;
g_camSpace = AffineSpace3f::lookAtPoint(g_camPos, g_camLookAt, g_camUp);
g_resetAccumulation = true;
}
}
else if (button == GLUT_LEFT_BUTTON && glutGetModifiers() == (GLUT_ACTIVE_CTRL | GLUT_ACTIVE_SHIFT)) {
Handle<Device::RTCamera> camera = createCamera(AffineSpace3f(g_camSpace.l,g_camSpace.p));
Vector3f p;
bool hit = g_device->rtPick(camera, x / float(g_width), y / float(g_height), g_render_scene, p.x, p.y, p.z);
if (hit) {
Vector3f v = normalize(g_camLookAt - g_camPos);
Vector3f d = p - g_camPos;
g_camLookAt = g_camPos + v*dot(d,v);
g_camSpace = AffineSpace3f::lookAtPoint(g_camPos, g_camLookAt, g_camUp);
g_resetAccumulation = true;
}
}
}
else {
if (glutGetModifiers() == GLUT_ACTIVE_CTRL) return;
clickX = x; clickY = y;
if (button == GLUT_LEFT_BUTTON && glutGetModifiers() == GLUT_ACTIVE_ALT) mouseMode = 4;
else if (button == GLUT_LEFT_BUTTON) mouseMode = 1;
else if (button == GLUT_MIDDLE_BUTTON) mouseMode = 2;
else if (button == GLUT_RIGHT_BUTTON) mouseMode = 3;
}
}
Ref<Shape> TriangleMeshWithNormals::transform(const AffineSpace3f& xfm) const
{
/*! do nothing for identity matrix */
if (xfm == AffineSpace3f(one))
return (Shape*)this;
/*! create transformed mesh */
TriangleMeshWithNormals* mesh = new TriangleMeshWithNormals(ty);
mesh->vertices.resize(vertices.size());
for (size_t i=0; i<vertices.size(); i++) mesh->vertices[i].p = xfmPoint (xfm,*(Vector3f*)(void*)&vertices[i].p);
for (size_t i=0; i<vertices.size(); i++) mesh->vertices[i].n = xfmNormal(xfm,*(Vector3f*)(void*)&vertices[i].n);
mesh->triangles = triangles;
return mesh;
}
void Renderer::updateCamera() {
Vec3f p = toEmbree(cam->getPosition());
Vec3f t = toEmbree(cam->getTargetPos());
Vec3f u = toEmbree(cam->getUpDir());
AffineSpace3f camSpace = AffineSpace3f::lookAtPoint(p, t, u);
AffineSpace3f transform = AffineSpace3f(camSpace.l, camSpace.p);
device->rtSetTransform(camera, "local2world", copyToArray(transform));
device->rtSetFloat1(camera, "angle", cam->getFov());
device->rtSetFloat1(camera, "aspectRatio", float(width) / float(height));
device->rtSetFloat1(camera, "lensRadius", cam->getRadius());
device->rtSetFloat1(camera, "focalDistance", (cam->getTargetPos() - cam->getPosition()).length());
device->rtCommit(camera);
}
Ref<Shape> TriangleMeshFull::transform(const AffineSpace3f& xfm) const
{
/*! do nothing for identity matrix */
if (xfm == AffineSpace3f(one))
return (Shape*)this;
/*! create transformed */
TriangleMeshFull* mesh = new TriangleMeshFull(ty);
mesh->position.resize(position.size());
for (size_t i=0; i<position.size(); i++) mesh->position[i] = xfmPoint(xfm,position[i]);
mesh->motion.resize(motion.size());
for (size_t i=0; i<motion.size(); i++) mesh->motion[i] = xfmVector(xfm,motion[i]);
mesh->normal.resize(normal.size() );
for (size_t i=0; i<normal.size(); i++) mesh->normal[i] = xfmNormal(xfm,normal[i]);
mesh->tangent_x.resize(tangent_x.size() );
for (size_t i=0; i<tangent_x.size(); i++) mesh->tangent_x[i] = xfmVector(xfm,tangent_x[i]);
mesh->tangent_y.resize(tangent_y.size() );
for (size_t i=0; i<tangent_y.size(); i++) mesh->tangent_y[i] = xfmVector(xfm,tangent_y[i]);
mesh->texcoord = texcoord;
mesh->triangles = triangles;
return mesh;
}
void displayFunc(void)
{
/* create random geometry for regression test */
if (g_regression)
g_render_scene = createRandomScene(g_device,1,random<int>()%1000,random<int>()%1000);
/* set accumulation mode */
int accumulate = g_resetAccumulation ? 0 : g_refine;
g_resetAccumulation = false;
/* render image */
Handle<Device::RTCamera> camera = createCamera(AffineSpace3f(g_camSpace.l,g_camSpace.p));
/* render into framebuffer */
double t0 = getSeconds();
g_device->rtRenderFrame(g_renderer,camera,g_render_scene,g_tonemapper,g_frameBuffer,accumulate);
g_device->rtSwapBuffers(g_frameBuffer);
/* draw image in OpenGL */
void* ptr = g_device->rtMapFrameBuffer(g_frameBuffer);
glRasterPos2i(-1, 1);
glPixelZoom(1.0f, -1.0f);
glDrawPixels((GLsizei)g_width,(GLsizei)g_height,GL_RGBA,GL_FLOAT,ptr);
g_device->rtUnmapFrameBuffer(g_frameBuffer);
glutSwapBuffers();
double dt = getSeconds()-t0;
/* measure rendering time */
std::ostringstream stream;
stream.setf(std::ios::fixed, std::ios::floatfield);
stream.precision(2);
stream << 1.0f/dt << " fps, ";
stream.precision(0);
stream << dt*1000.0f << " ms";
std::cout << "display " << stream.str() << std::endl;
glutSetWindowTitle((std::string("Embree: ") + stream.str()).c_str());
}
void displayFunc(void)
{
if (g_pause)
return;
if (g_demo)
{
double restart_time = 15.0f;
double dt = getSeconds()-g_demo_t0;
if (dt > restart_time) {
dt -= restart_time;
g_demo_t0 = getSeconds() - dt;
}
float theta = dt * 90.0f / 180.0f * float(pi);
float phi = 0.0f;
if (theta >= 2.0f*float(pi)) theta = 2.0f*float(pi);
const Vector3f viewVec = normalize(g_initial_camLookAt - g_initial_camPos);
const float dist = length(g_initial_camLookAt - g_initial_camPos);
//const Vector3f dX = normalize(cross(viewVec,g_initial_camUp));
//const Vector3f dY = normalize(cross(viewVec,dX));
const Vector3f dY = normalize(g_initial_camUp);
AffineSpace3f space = g_demo_camSpace;
//space = AffineSpace3f::rotate(g_initial_camLookAt,dX,phi ) * space;
space = AffineSpace3f::rotate(g_initial_camLookAt,dY,theta) * space;
//g_camPos = g_camLookAt-dist*xfmVector(g_camSpace,Vector3f(0,0,1));
g_camSpace = space;
static int extra_resets = 0;
if (theta < 2.0f*float(pi)) {
g_resetAccumulation = true;
extra_resets = 0;
} else if (extra_resets < 2) {
g_resetAccumulation = true;
extra_resets++;
}
}
/* create random geometry for regression test */
if (g_regression)
g_render_scene = createRandomScene(g_device,1,random<int>()%100,random<int>()%1000);
/* set accumulation mode */
int accumulate = g_resetAccumulation ? 0 : g_refine;
g_resetAccumulation = false;
/* render image */
Handle<Device::RTCamera> camera = createCamera(AffineSpace3f(g_camSpace.l,g_camSpace.p));
/* render into framebuffer */
g_device->rtRenderFrame(g_renderer,camera,g_render_scene,g_tonemapper,g_frameBuffer,accumulate);
g_device->rtSwapBuffers(g_frameBuffer);
/* draw image in OpenGL */
void* ptr = g_device->rtMapFrameBuffer(g_frameBuffer);
glRasterPos2i(-1, 1);
glPixelZoom(1.0f, -1.0f);
if (g_format == "RGB_FLOAT32")
glDrawPixels((GLsizei)g_width,(GLsizei)g_height,GL_RGB,GL_FLOAT,ptr);
else if (g_format == "RGBA8")
glDrawPixels((GLsizei)g_width,(GLsizei)g_height,GL_RGBA,GL_UNSIGNED_BYTE,ptr);
else if (g_format == "RGB8")
glDrawPixels((GLsizei)g_width,(GLsizei)g_height,GL_RGB,GL_UNSIGNED_BYTE,ptr);
else
throw std::runtime_error("unknown framebuffer format: "+g_format);
glFlush();
glutSwapBuffers();
g_device->rtUnmapFrameBuffer(g_frameBuffer);
/* calculate rendering time */
double t1 = getSeconds();
g_dt[frameID % avgFrames] = t1-g_t0; g_t0 = t1;
frameID++;
/* print average render time of previous frames */
size_t num = 0;
double dt = 0.0f;
for (size_t i=0; i<avgFrames; i++) {
if (g_dt[i] != 0.0f) {
dt += g_dt[i]; num++;
}
}
dt /= num;
std::ostringstream stream;
stream.setf(std::ios::fixed, std::ios::floatfield);
stream.precision(2);
stream << 1.0f/dt << " fps, ";
stream.precision(2);
stream << dt*1000.0f << " ms";
stream << ", " << g_width << "x" << g_height;
if (log_display)
std::cout << "display " << stream.str() << std::endl;
glutSetWindowTitle((std::string("Embree: ") + stream.str()).c_str());
}
Handle<Device::RTScene> createRandomScene(Device *device, size_t numLights, size_t numObjects, size_t numTriangles)
{
std::vector<Device::RTPrimitive> prims;
//for (size_t i=0; i < numLights; i++)
prims.push_back(device->rtNewLightPrimitive(createRandomLight(device), NULL, copyToArray(AffineSpace3f(one))));
for (size_t i=0; i < numObjects; i++) {
size_t s = numTriangles ? random<int>() % numTriangles : 0;
prims.push_back(device->rtNewShapePrimitive(createRandomShape(device, s), createRandomMaterial(device), copyToArray(AffineSpace3f(one))));
}
Handle<Device::RTScene> scene = device->rtNewScene("default");
g_device->rtSetString(scene,"accel",g_accel.c_str());
g_device->rtSetString(scene,"builder",g_builder.c_str());
g_device->rtSetString(scene,"traverser",g_traverser.c_str());
for (size_t i=0; i<prims.size(); i++) g_device->rtSetPrimitive(scene,i,prims[i]);
g_device->rtCommit(scene);
for (size_t i=0; i<prims.size(); i++)
device->rtDecRef(prims[i]);
return scene;
}
void displayFunc(void)
{
if (g_pause)
return;
/* create random geometry for regression test */
if (g_regression)
g_render_scene = createRandomScene(g_device,1,random<int>()%100,random<int>()%1000);
/* set accumulation mode */
int accumulate = g_resetAccumulation ? 0 : g_refine;
g_resetAccumulation = false;
/* render image */
Handle<Device::RTCamera> camera = createCamera(AffineSpace3f(g_camSpace.l,g_camSpace.p));
/* render into framebuffer */
g_device->rtRenderFrame(g_renderer,camera,g_render_scene,g_tonemapper,g_frameBuffer,accumulate);
g_device->rtSwapBuffers(g_frameBuffer);
/* draw image in OpenGL */
void* ptr = g_device->rtMapFrameBuffer(g_frameBuffer);
// extern double upload_time;
// upload_time = getSeconds() - upload_time;
// std::cout << "upload " << upload_time << std::endl;
// exit(0);
glRasterPos2i(-1, 1);
glPixelZoom(1.0f, -1.0f);
if (g_format == "RGB_FLOAT32")
glDrawPixels((GLsizei)g_width,(GLsizei)g_height,GL_RGB,GL_FLOAT,ptr);
else if (g_format == "RGBA8")
glDrawPixels((GLsizei)g_width,(GLsizei)g_height,GL_RGBA,GL_UNSIGNED_BYTE,ptr);
else if (g_format == "RGB8")
glDrawPixels((GLsizei)g_width,(GLsizei)g_height,GL_RGB,GL_UNSIGNED_BYTE,ptr);
else
throw std::runtime_error("unknown framebuffer format: "+g_format);
glFlush();
glutSwapBuffers();
g_device->rtUnmapFrameBuffer(g_frameBuffer);
/* calculate rendering time */
double t1 = getSeconds();
g_dt[frameID % avgFrames] = t1-g_t0; g_t0 = t1;
frameID++;
/* print average render time of previous frames */
size_t num = 0;
double dt = 0.0f;
for (size_t i=0; i<avgFrames; i++) {
if (g_dt[i] != 0.0f) {
dt += g_dt[i]; num++;
}
}
dt /= num;
std::ostringstream stream;
stream.setf(std::ios::fixed, std::ios::floatfield);
stream.precision(2);
stream << 1.0f/dt << " fps, ";
stream.precision(2);
stream << dt*1000.0f << " ms";
stream << ", " << g_width << "x" << g_height;
if (log_display)
std::cout << "display " << stream.str() << std::endl;
glutSetWindowTitle((std::string("Embree: ") + stream.str()).c_str());
}
Handle <Device::RTShape> Renderer::addShape(Device::RTMaterial material, Device::RTShape shape) {
return addShape(material, shape, AffineSpace3f(one));
}