//------------------------------------------------------------------------------
static void
display() {
Stopwatch s;
s.Start();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, g_width, g_height);
g_hud.FillBackground();
double aspect = g_width/(double)g_height;
identity(g_transformData.ModelViewMatrix);
translate(g_transformData.ModelViewMatrix, -g_pan[0], -g_pan[1], -g_dolly);
rotate(g_transformData.ModelViewMatrix, g_rotate[1], 1, 0, 0);
rotate(g_transformData.ModelViewMatrix, g_rotate[0], 0, 1, 0);
rotate(g_transformData.ModelViewMatrix, -90, 1, 0, 0);
translate(g_transformData.ModelViewMatrix,
-g_center[0], -g_center[1], -g_center[2]);
perspective(g_transformData.ProjectionMatrix,
45.0f, (float)aspect, 0.01f, 500.0f);
multMatrix(g_transformData.ModelViewProjectionMatrix,
g_transformData.ModelViewMatrix,
g_transformData.ProjectionMatrix);
glEnable(GL_DEPTH_TEST);
drawStencils();
// draw the control mesh
g_controlMeshDisplay.Draw(g_stencilOutput->BindSrcBuffer(), 3*sizeof(float),
g_transformData.ModelViewProjectionMatrix);
s.Stop();
float drawCpuTime = float(s.GetElapsed() * 1000.0f);
s.Start();
glFinish();
s.Stop();
float drawGpuTime = float(s.GetElapsed() * 1000.0f);
if (g_hud.IsVisible()) {
g_fpsTimer.Stop();
double fps = 1.0/g_fpsTimer.GetElapsed();
g_fpsTimer.Start();
g_hud.DrawString(10, -100, "# stencils : %d", g_nsamplesDrawn);
g_hud.DrawString(10, -80, "EvalStencils : %.3f ms", g_evalTime);
g_hud.DrawString(10, -60, "GPU Draw : %.3f ms", drawGpuTime);
g_hud.DrawString(10, -40, "CPU Draw : %.3f ms", drawCpuTime);
g_hud.DrawString(10, -20, "FPS : %3.1f", fps);
g_hud.Flush();
}
glFinish();
//checkGLErrors("display leave");
}
//------------------------------------------------------------------------------
void
updateGeom() {
int nverts = (int)g_orgPositions.size() / 3;
std::vector<float> vertex;
vertex.reserve(nverts*6);
const float *p = &g_orgPositions[0];
const float *n = &g_normals[0];
float r = sin(g_frame*0.001f) * g_moveScale;
for (int i = 0; i < nverts; ++i) {
float move = 0.05f*cosf(p[0]*20+g_frame*0.01f);
float ct = cos(p[2] * r);
float st = sin(p[2] * r);
g_positions[i*3+0] = p[0]*ct + p[1]*st;
g_positions[i*3+1] = -p[0]*st + p[1]*ct;
g_positions[i*3+2] = p[2];
p += 3;
}
p = &g_positions[0];
for (int i = 0; i < nverts; ++i) {
vertex.push_back(p[0]);
vertex.push_back(p[1]);
vertex.push_back(p[2]);
vertex.push_back(n[0]);
vertex.push_back(n[1]);
vertex.push_back(n[2]);
p += 3;
n += 3;
}
if (!g_vertexBuffer)
g_vertexBuffer = g_osdmesh->InitializeVertexBuffer(6);
g_vertexBuffer->UpdateData(&vertex[0], nverts);
Stopwatch s;
s.Start();
g_osdmesh->Subdivide(g_vertexBuffer, NULL);
s.Stop();
g_cpuTime = float(s.GetElapsed() * 1000.0f);
s.Start();
g_osdmesh->Synchronize();
s.Stop();
g_gpuTime = float(s.GetElapsed() * 1000.0f);
glBindBuffer(GL_ARRAY_BUFFER, g_vertexBuffer->GetGpuBuffer());
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
static void
updateGeom() {
int nverts = (int)g_orgPositions.size() / 3;
const float *p = &g_orgPositions[0];
float r = sin(g_frame*0.001f) * g_moveScale;
g_positions.resize(nverts*3);
for (int i = 0; i < nverts; ++i) {
//float move = 0.05f*cosf(p[0]*20+g_frame*0.01f);
float ct = cos(p[2] * r);
float st = sin(p[2] * r);
g_positions[i*3+0] = p[0]*ct + p[1]*st;
g_positions[i*3+1] = -p[0]*st + p[1]*ct;
g_positions[i*3+2] = p[2];
p+=3;
}
Stopwatch s;
s.Start();
// update control points
g_stencilOutput->UpdateData(&g_positions[0], 0, nverts);
// Update random points by applying point & tangent stencils
g_stencilOutput->EvalStencils();
s.Stop();
g_evalTime = float(s.GetElapsed() * 1000.0f);
}
double
OsdMesh::Synchronize() {
Stopwatch s;
s.Start();
{
_dispatcher->Synchronize();
}
s.Stop();
return s.GetElapsed();
}
double
OsdMesh::Subdivide(OsdVertexBuffer *vertex, OsdVertexBuffer *varying) {
_dispatcher->BindVertexBuffer(vertex, varying);
Stopwatch s;
s.Start();
{
_dispatcher->OnKernelLaunch();
_farMesh->Subdivide(_level+1, _exact);
_dispatcher->OnKernelFinish();
}
s.Stop();
_dispatcher->UnbindVertexBuffer();
return s.GetElapsed();
}
//------------------------------------------------------------------------------
static void
display() {
// set effect
g_effect.displayStyle = g_displayStyle;
g_effect.screenSpaceTess = (g_screenSpaceTess != 0);
g_effect.displayPatchColor = (g_displayPatchColor != 0);
// prepare view matrix
float aspect = g_width/(float)g_height;
float modelview[16], projection[16];
identity(modelview);
translate(modelview, -g_pan[0], -g_pan[1], -g_dolly);
rotate(modelview, g_rotate[1], 1, 0, 0);
rotate(modelview, g_rotate[0], 0, 1, 0);
rotate(modelview, -90, 1, 0, 0);
translate(modelview, -g_center[0], -g_center[1], -g_center[2]);
perspective(projection, 45.0f, aspect, 0.01f, 500.0f);
g_effect.SetMatrix(modelview, projection);
g_effect.SetTessLevel((float)(1 << g_tessLevel));
g_effect.SetLighting();
// -----------------------------------------------------------------------
// prepare draw items
Stopwatch s;
s.Start();
OpenSubdiv::OsdUtilDrawItem<MyDrawDelegate::EffectHandle, MyDrawContext>::Collection items;
OpenSubdiv::OsdUtilDrawItem<MyDrawDelegate::EffectHandle, MyDrawContext>::Collection cachedDrawItems;
int numModels = g_modelCount*g_modelCount;
items.reserve(numModels);
for (int i = 0; i < numModels; ++i) {
// Here, client can pack arbitrary mesh and effect into drawItems.
items.push_back(OpenSubdiv::OsdUtilDrawItem<MyDrawDelegate::EffectHandle, MyDrawContext>(
g_batch, &g_effect, g_batch->GetPatchArrays(i)));
}
if (g_batching) {
// create cached draw items
OpenSubdiv::OsdUtil::OptimizeDrawItem(items, cachedDrawItems, &g_drawDelegate);
}
s.Stop();
float prepCpuTime = float(s.GetElapsed() * 1000.0f);
// -----------------------------------------------------------------------
// draw items
s.Start();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, g_width, g_height);
// primitive counting
glBeginQuery(GL_PRIMITIVES_GENERATED, g_queries[0]);
#if defined(GL_VERSION_3_3)
glBeginQuery(GL_TIME_ELAPSED, g_queries[1]);
#endif
g_drawDelegate.ResetNumDrawCalls();
if (g_displayStyle == kWire) glDisable(GL_CULL_FACE);
if (g_batching) {
OpenSubdiv::OsdUtil::DrawCollection(cachedDrawItems, &g_drawDelegate);
} else {
OpenSubdiv::OsdUtil::DrawCollection(items, &g_drawDelegate);
}
if (g_displayStyle == kWire) glEnable(GL_CULL_FACE);
glEndQuery(GL_PRIMITIVES_GENERATED);
#if defined(GL_VERSION_3_3)
glEndQuery(GL_TIME_ELAPSED);
#endif
s.Stop();
float drawCpuTime = float(s.GetElapsed() * 1000.0f);
// -----------------------------------------------------------------------
GLuint numPrimsGenerated = 0;
GLuint timeElapsed = 0;
glGetQueryObjectuiv(g_queries[0], GL_QUERY_RESULT, &numPrimsGenerated);
#if defined(GL_VERSION_3_3)
glGetQueryObjectuiv(g_queries[1], GL_QUERY_RESULT, &timeElapsed);
#endif
float drawGpuTime = timeElapsed / 1000.0f / 1000.0f;
if (g_hud.IsVisible()) {
g_fpsTimer.Stop();
g_totalTime += g_fpsTimer.GetElapsed();
double fps = 1.0/g_fpsTimer.GetElapsed();
g_fpsTimer.Start();
g_hud.DrawString(10, -200, "Draw Calls : %d", g_drawDelegate.GetNumDrawCalls());
g_hud.DrawString(10, -180, "Tess level : %d", g_tessLevel);
g_hud.DrawString(10, -160, "Primitives : %d", numPrimsGenerated);
g_hud.DrawString(10, -120, "GPU Kernel : %.3f ms", g_gpuTime);
g_hud.DrawString(10, -100, "CPU Kernel : %.3f ms", g_cpuTime);
g_hud.DrawString(10, -80, "GPU Draw : %.3f ms", drawGpuTime);
g_hud.DrawString(10, -60, "CPU Draw : %.3f ms", drawCpuTime);
g_hud.DrawString(10, -40, "CPU Prep : %.3f ms", prepCpuTime);
g_hud.DrawString(10, -20, "FPS : %3.1f", fps);
g_hud.Flush();
}
checkGLErrors("display leave");
glFinish();
}
static void
updateGeom(bool forceAll) {
float r = (float)sin(g_totalTime);
for (int j = 0; j < g_modelCount * g_modelCount; ++j) {
if (forceAll == false && j >= g_moveModels) break;
int nverts = (int)g_positions[j].size()/3;
std::vector<float> vertex, varying;
vertex.reserve(nverts * 3);
if (g_displayStyle == kVaryingColor)
varying.reserve(nverts * 3);
const float *p = &g_positions[j][0];
for (int i = 0; i < nverts; ++i) {
float ct = cos(p[2] * r);
float st = sin(p[2] * r);
float v[4];
v[0] = p[0]*ct + p[1]*st;
v[1] = -p[0]*st + p[1]*ct;
v[2] = p[2];
v[3] = 1;
apply(v, g_transforms[j].value);
vertex.push_back(v[0]);
vertex.push_back(v[1]);
vertex.push_back(v[2]);
if (g_displayStyle == kVaryingColor) {
varying.push_back(p[2]);
varying.push_back(p[1]);
varying.push_back(p[0]);
}
p += 3;
}
g_batch->UpdateCoarseVertices(j, &vertex[0], nverts);
if (g_displayStyle == kVaryingColor) {
g_batch->UpdateCoarseVaryings(j, &varying[0], nverts);
}
}
Stopwatch s;
s.Start();
g_batch->FinalizeUpdate();
s.Stop();
g_cpuTime = float(s.GetElapsed() * 1000.0f);
s.Start();
if (g_kernel == kCPU) Controller<OpenSubdiv::OsdCpuComputeController>::GetInstance()->Synchronize();
#ifdef OPENSUBDIV_HAS_OPENMP
else if (g_kernel == kOPENMP) Controller<OpenSubdiv::OsdOmpComputeController>::GetInstance()->Synchronize();
#endif
#ifdef OPENSUBDIV_HAS_OPENCL
else if (g_kernel == kCL) Controller<OpenSubdiv::OsdCLComputeController>::GetInstance()->Synchronize();
#endif
#ifdef OPENSUBDIV_HAS_CUDA
else if (g_kernel == kCUDA) Controller<OpenSubdiv::OsdCudaComputeController>::GetInstance()->Synchronize();
#endif
#ifdef OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK
else if (g_kernel == kGLSL) Controller<OpenSubdiv::OsdGLSLTransformFeedbackComputeController>::GetInstance()->Synchronize();
#endif
s.Stop();
g_gpuTime = float(s.GetElapsed() * 1000.0f);
}
//------------------------------------------------------------------------------
static void
display() {
g_hud.GetFrameBuffer()->Bind();
Stopwatch s;
s.Start();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, g_width, g_height);
// prepare view matrix
double aspect = g_width/(double)g_height;
identity(g_transformData.ModelViewMatrix);
translate(g_transformData.ModelViewMatrix, -g_pan[0], -g_pan[1], -g_dolly);
rotate(g_transformData.ModelViewMatrix, g_rotate[1], 1, 0, 0);
rotate(g_transformData.ModelViewMatrix, g_rotate[0], 0, 1, 0);
rotate(g_transformData.ModelViewMatrix, -90, 1, 0, 0);
translate(g_transformData.ModelViewMatrix,
-g_center[0], -g_center[1], -g_center[2]);
perspective(g_transformData.ProjectionMatrix,
45.0f, (float)aspect, 0.1f, 500.0f);
multMatrix(g_transformData.ModelViewProjectionMatrix,
g_transformData.ModelViewMatrix,
g_transformData.ProjectionMatrix);
glEnable(GL_DEPTH_TEST);
s.Stop();
float drawCpuTime = float(s.GetElapsed() * 1000.0f);
glBindVertexArray(0);
glUseProgram(0);
// primitive counting
glBeginQuery(GL_PRIMITIVES_GENERATED, g_queries[0]);
#if defined(GL_VERSION_3_3)
glBeginQuery(GL_TIME_ELAPSED, g_queries[1]);
#endif
// Update and bind transform state ---------------------
if (! g_transformUB) {
glGenBuffers(1, &g_transformUB);
glBindBuffer(GL_UNIFORM_BUFFER, g_transformUB);
glBufferData(GL_UNIFORM_BUFFER, sizeof(g_transformData), NULL, GL_STATIC_DRAW);
};
glBindBuffer(GL_UNIFORM_BUFFER, g_transformUB);
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(g_transformData), &g_transformData);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
// Update and bind lighting state ----------------------
struct Lighting {
struct Light {
float position[4];
float ambient[4];
float diffuse[4];
float specular[4];
} lightSource[2];
} lightingData = {
{{ { 0.5, 0.2f, 1.0f, 0.0f },
{ 0.1f, 0.1f, 0.1f, 1.0f },
{ 0.7f, 0.7f, 0.7f, 1.0f },
{ 0.8f, 0.8f, 0.8f, 1.0f } },
{ { -0.8f, 0.4f, -1.0f, 0.0f },
{ 0.0f, 0.0f, 0.0f, 1.0f },
{ 0.5f, 0.5f, 0.5f, 1.0f },
{ 0.8f, 0.8f, 0.8f, 1.0f } }}
};
if (! g_lightingUB) {
glGenBuffers(1, &g_lightingUB);
glBindBuffer(GL_UNIFORM_BUFFER, g_lightingUB);
glBufferData(GL_UNIFORM_BUFFER, sizeof(lightingData), NULL, GL_STATIC_DRAW);
};
glBindBuffer(GL_UNIFORM_BUFFER, g_lightingUB);
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(lightingData), &lightingData);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
// Draw stuff ------------------------------------------
// control cage edges & verts
if (g_drawCageVertices) {
g_base_glmesh.Draw(GLMesh::COMP_VERT, g_transformUB, g_lightingUB);
}
if (g_drawCageEdges) {
g_base_glmesh.Draw(GLMesh::COMP_EDGE, g_transformUB, g_lightingUB);
}
// Hbr mesh
if (g_HbrDrawMode!=kDRAW_NONE) {
GLMesh::Component comp=GLMesh::COMP_VERT;
switch (g_HbrDrawMode) {
case kDRAW_VERTICES : comp=GLMesh::COMP_VERT; break;
case kDRAW_WIREFRAME : comp=GLMesh::COMP_EDGE; break;
case kDRAW_FACES : comp=GLMesh::COMP_FACE; break;
default:
assert(0);
}
g_hbr_glmesh.Draw(comp, g_transformUB, g_lightingUB);
}
// Vtr mesh
if (g_VtrDrawMode!=kDRAW_NONE) {
GLMesh::Component comp=GLMesh::COMP_VERT;
switch (g_VtrDrawMode) {
case kDRAW_VERTICES : comp=GLMesh::COMP_VERT; break;
case kDRAW_WIREFRAME : comp=GLMesh::COMP_EDGE; break;
case kDRAW_FACES : comp=GLMesh::COMP_FACE; break;
default:
assert(0);
}
g_vtr_glmesh.Draw(comp, g_transformUB, g_lightingUB);
}
assert(g_font);
g_font->Draw(g_transformUB);
// -----------------------------------------------------
g_hud.GetFrameBuffer()->ApplyImageShader();
GLuint numPrimsGenerated = 0;
GLuint timeElapsed = 0;
glGetQueryObjectuiv(g_queries[0], GL_QUERY_RESULT, &numPrimsGenerated);
#if defined(GL_VERSION_3_3)
glGetQueryObjectuiv(g_queries[1], GL_QUERY_RESULT, &timeElapsed);
#endif
float drawGpuTime = timeElapsed / 1000.0f / 1000.0f;
if (g_hud.IsVisible()) {
g_fpsTimer.Stop();
double fps = 1.0/g_fpsTimer.GetElapsed();
g_fpsTimer.Start();
{ // display selectde patch info
static char const * patchTypes[11] = { "undefined", "points", "lines",
"quads", "tris", "loop", "regular", "boundary", "corner",
"gregory", "gregory-boundary" };
if (g_Adaptive and g_currentPatch) {
g_hud.DrawString(g_width/2-100, 100, "Current Patch : %d/%d (%s - %d CVs)",
g_currentPatch-1, g_numPatches,
patchTypes[g_currentPatchDesc.GetType()],
g_currentPatchDesc.GetNumControlVertices());
}
}
static char const * schemeNames[3] = { "BILINEAR", "CATMARK", "LOOP" };
g_hud.DrawString(10, -140, "Primitives : %d", numPrimsGenerated);
g_hud.DrawString(10, -120, "Scheme : %s", schemeNames[ g_shapes[g_currentShape].scheme ]);
g_hud.DrawString(10, -100, "GPU Kernel : %.3f ms", g_gpuTime);
g_hud.DrawString(10, -80, "CPU Kernel : %.3f ms", g_cpuTime);
g_hud.DrawString(10, -60, "GPU Draw : %.3f ms", drawGpuTime);
g_hud.DrawString(10, -40, "CPU Draw : %.3f ms", drawCpuTime);
g_hud.DrawString(10, -20, "FPS : %3.1f", fps);
g_hud.Flush();
}
glFinish();
//checkGLErrors("display leave");
}
//------------------------------------------------------------------------------
void
display() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, g_width, g_height);
double aspect = g_width/(double)g_height;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0, aspect, g_size*0.001f, g_size+g_dolly);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(-g_pan[0], -g_pan[1], -g_dolly);
glRotatef(g_rotate[1], 1, 0, 0);
glRotatef(g_rotate[0], 0, 1, 0);
glTranslatef(-g_center[0], -g_center[1], -g_center[2]);
glUseProgram(g_program);
{
// shader uniform setting
GLint position = glGetUniformLocation(g_program, "lightSource[0].position");
GLint ambient = glGetUniformLocation(g_program, "lightSource[0].ambient");
GLint diffuse = glGetUniformLocation(g_program, "lightSource[0].diffuse");
GLint specular = glGetUniformLocation(g_program, "lightSource[0].specular");
glProgramUniform4f(g_program, position, 0, 0.2f, 1, 0);
glProgramUniform4f(g_program, ambient, 0.4f, 0.4f, 0.4f, 1.0f);
glProgramUniform4f(g_program, diffuse, 0.3f, 0.3f, 0.3f, 1.0f);
glProgramUniform4f(g_program, specular, 0.2f, 0.2f, 0.2f, 1.0f);
GLint otcMatrix = glGetUniformLocation(g_program, "objectToClipMatrix");
GLint oteMatrix = glGetUniformLocation(g_program, "objectToEyeMatrix");
GLfloat modelView[16], proj[16], mvp[16];
glGetFloatv(GL_MODELVIEW_MATRIX, modelView);
glGetFloatv(GL_PROJECTION_MATRIX, proj);
multMatrix(mvp, modelView, proj);
glProgramUniformMatrix4fv(g_program, otcMatrix, 1, false, mvp);
glProgramUniformMatrix4fv(g_program, oteMatrix, 1, false, modelView);
}
GLuint bVertex = g_vertexBuffer->GetGpuBuffer();
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glBindBuffer(GL_ARRAY_BUFFER, bVertex);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof (GLfloat) * 6, 0);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof (GLfloat) * 6, (float*)12);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_elementArrayBuffer->GetGlBuffer());
glPolygonMode(GL_FRONT_AND_BACK, g_wire==0 ? GL_LINE : GL_FILL);
// glPatchParameteri(GL_PATCH_VERTICES, 4);
// glDrawElements(GL_PATCHES, g_numIndices, GL_UNSIGNED_INT, 0);
glDrawElements(GL_LINES_ADJACENCY, g_elementArrayBuffer->GetNumIndices(), GL_UNSIGNED_INT, 0);
glUseProgram(0);
if (g_drawNormals)
drawNormals();
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
if (g_ptexDebug)
drawPtexLayout(g_ptexDebug-1);
glColor3f(1, 1, 1);
drawFmtString(10, 10, "LEVEL = %d", g_level);
drawFmtString(10, 30, "# of Vertices = %d", g_osdmesh->GetFarMesh()->GetNumVertices());
drawFmtString(10, 50, "KERNEL = %s", getKernelName(g_kernel));
drawFmtString(10, 70, "CPU TIME = %.3f ms", g_cpuTime);
drawFmtString(10, 90, "GPU TIME = %.3f ms", g_gpuTime);
g_fpsTimer.Stop();
drawFmtString(10, 110, "FPS = %3.1f", 1.0/g_fpsTimer.GetElapsed());
g_fpsTimer.Start();
drawFmtString(10, 130, "SUBDIVISION = %s", g_scheme==0 ? "CATMARK" : "BILINEAR");
drawString(10, g_height-10, "a: ambient occlusion on/off");
drawString(10, g_height-30, "c: color on/off");
drawString(10, g_height-50, "d: displacement on/off");
drawString(10, g_height-70, "e: show normal vector");
drawString(10, g_height-90, "f: fit frame");
drawString(10, g_height-110, "w: toggle wireframe");
drawString(10, g_height-130, "m: toggle vertex moving");
drawString(10, g_height-150, "s: bilinear / catmark");
drawString(10, g_height-170, "1-7: subdivision level");
glFinish();
glutSwapBuffers();
}
static void
updateGeom() {
int nverts = (int)g_orgPositions.size() / 3;
const float *p = &g_orgPositions[0];
float r = sin(g_frame*0.001f) * g_moveScale;
float * positions = g_controlValues->BindCpuBuffer();
for (int i = 0; i < nverts; ++i) {
//float move = 0.05f*cosf(p[0]*20+g_frame*0.01f);
float ct = cos(p[2] * r);
float st = sin(p[2] * r);
positions[i*3+0] = p[0]*ct + p[1]*st;
positions[i*3+1] = -p[0]*st + p[1]*ct;
positions[i*3+2] = p[2];
p+=3;
}
Stopwatch s;
s.Start();
float * ptr = g_stencilValues->BindCpuBuffer();
memset(ptr, 0, g_controlStencils->GetNumStencils() * 18 * sizeof(float));
// Uppdate random points by applying point & tangent stencils
switch (g_kernel) {
case kCPU: {
g_evalCpuCtrl.UpdateValues<Osd::CpuVertexBuffer,Osd::CpuGLVertexBuffer>(
g_evalCtx,
g_controlDesc, g_controlValues,
g_outputDataDesc, g_stencilValues );
g_evalCpuCtrl.UpdateDerivs<Osd::CpuVertexBuffer,Osd::CpuGLVertexBuffer>(
g_evalCtx,
g_controlDesc, g_controlValues,
g_outputDuDesc, g_stencilValues,
g_outputDvDesc, g_stencilValues );
} break;
#if defined(OPENSUBDIV_HAS_OPENMP)
case kOPENMP: {
g_evalOmpCtrl.UpdateValues<Osd::CpuVertexBuffer,Osd::CpuGLVertexBuffer>(
g_evalCtx,
g_controlDesc, g_controlValues,
g_outputDataDesc, g_stencilValues );
g_evalOmpCtrl.UpdateDerivs<Osd::CpuVertexBuffer,Osd::CpuGLVertexBuffer>(
g_evalCtx,
g_controlDesc, g_controlValues,
g_outputDuDesc, g_stencilValues,
g_outputDvDesc, g_stencilValues );
} break;
#endif
#if defined(OPENSUBDIV_HAS_TBB)
case kTBB: {
g_evalTbbCtrl.UpdateValues<Osd::CpuVertexBuffer,Osd::CpuGLVertexBuffer>(
g_evalCtx,
g_controlDesc, g_controlValues,
g_outputDataDesc, g_stencilValues );
g_evalTbbCtrl.UpdateDerivs<Osd::CpuVertexBuffer,Osd::CpuGLVertexBuffer>(
g_evalCtx,
g_controlDesc, g_controlValues,
g_outputDuDesc, g_stencilValues,
g_outputDvDesc, g_stencilValues );
} break;
#endif
default:
return;
}
s.Stop();
g_evalTime = float(s.GetElapsed() * 1000.0f);
assert(g_controlStencils);
for (int i=0; i < g_controlStencils->GetNumStencils(); ++i, ptr+=18) {
float * p = ptr,
* utan = ptr + 3,
* vtan = ptr + 9,
* normal = ptr + 15;
// copy P as starting point for each line
memcpy( ptr + 6, p, 3*sizeof(float) );
memcpy( ptr + 12, p, 3*sizeof(float) );
normalize( utan );
normalize( vtan );
cross( normal, utan, vtan );
normalize(normal);
// compute end point for each line (P + vec * scale)
for (int j=0; j<3; ++j) {
utan[j]= p[j] + utan[j]*SCALE_TAN;
vtan[j]= p[j] + vtan[j]*SCALE_TAN;
normal[j]= p[j] + normal[j]*SCALE_NORM;
}
}
}
//------------------------------------------------------------------------------
static void
display() {
Stopwatch s;
s.Start();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, g_width, g_height);
double aspect = g_width/(double)g_height;
identity(g_transformData.ModelViewMatrix);
translate(g_transformData.ModelViewMatrix, -g_pan[0], -g_pan[1], -g_dolly);
rotate(g_transformData.ModelViewMatrix, g_rotate[1], 1, 0, 0);
rotate(g_transformData.ModelViewMatrix, g_rotate[0], 0, 1, 0);
rotate(g_transformData.ModelViewMatrix, -90, 1, 0, 0);
translate(g_transformData.ModelViewMatrix,
-g_center[0], -g_center[1], -g_center[2]);
perspective(g_transformData.ProjectionMatrix,
45.0f, (float)aspect, 0.01f, 500.0f);
multMatrix(g_transformData.ModelViewProjectionMatrix,
g_transformData.ModelViewMatrix,
g_transformData.ProjectionMatrix);
s.Stop();
float drawCpuTime = float(s.GetElapsed() * 1000.0f);
s.Start();
glFinish();
s.Stop();
float drawGpuTime = float(s.GetElapsed() * 1000.0f);
drawSamples();
if (g_drawCageEdges)
drawCageEdges();
if (g_drawCageVertices)
drawCageVertices();
if (g_hud.IsVisible()) {
g_fpsTimer.Stop();
double fps = 1.0/g_fpsTimer.GetElapsed();
g_fpsTimer.Start();
g_hud.DrawString(10, -120, "# Samples : (%d/%d)", g_nsamplesFound, g_Q->GetNumVertices());
g_hud.DrawString(10, -100, "Compute : %.3f ms", g_computeTime);
g_hud.DrawString(10, -80, "Eval : %.3f ms", g_evalTime);
g_hud.DrawString(10, -60, "GPU Draw : %.3f ms", drawGpuTime);
g_hud.DrawString(10, -40, "CPU Draw : %.3f ms", drawCpuTime);
g_hud.DrawString(10, -20, "FPS : %3.1f", fps);
if (g_drawMode==kFACEVARYING and g_evalCtx->GetFVarData().empty()) {
static char msg[21] = "No Face-Varying Data";
g_hud.DrawString(g_width/2-20/2*8, g_height/2, msg);
}
g_hud.Flush();
}
glFinish();
checkGLErrors("display leave");
}
//------------------------------------------------------------------------------
static void
updateGeom() {
int nverts = (int)g_orgPositions.size() / 3;
const float *p = &g_orgPositions[0];
float r = sin(g_frame*0.001f) * g_moveScale;
for (int i = 0; i < nverts; ++i) {
//float move = 0.05f*cosf(p[0]*20+g_frame*0.01f);
float ct = cos(p[2] * r);
float st = sin(p[2] * r);
g_positions[i*3+0] = p[0]*ct + p[1]*st;
g_positions[i*3+1] = -p[0]*st + p[1]*ct;
g_positions[i*3+2] = p[2];
p+=3;
}
// Run Compute pass to pose the control vertices ---------------------------
Stopwatch s;
s.Start();
g_vertexData->UpdateData( &g_positions[0], 0, nverts);
g_computeCtrl.Refine( g_computeCtx, g_fmesh->GetKernelBatches(), g_vertexData, g_varyingData );
s.Stop();
g_computeTime = float(s.GetElapsed() * 1000.0f);
// Run Eval pass to get the samples locations ------------------------------
s.Start();
// Reset the output buffer
g_nsamplesFound=0;
// Bind/Unbind of the vertex buffers to the context needs to happen
// outside of the parallel loop
g_evalCtx->GetVertexData().Bind( g_idesc, g_vertexData, g_odesc, g_Q, g_dQu, g_dQv );
// The varying data ends-up interleaved in the same g_Q output buffer because
// g_Q has a stride of 6 and g_vdesc sets the offset to 3, while g_odesc sets
// the offset to 0
switch (g_drawMode) {
case kVARYING : g_evalCtx->GetVaryingData().Bind( g_idesc, g_varyingData, g_vdesc, g_Q ); break;
case kFACEVARYING : g_evalCtx->GetFaceVaryingData().Bind( g_fvidesc, g_fvodesc, g_Q );
case kUV :
default : g_evalCtx->GetVaryingData().Unbind(); break;
}
#define USE_OPENMP
#if defined(OPENSUBDIV_HAS_OPENMP) and defined(USE_OPENMP)
#pragma omp parallel for
#endif
for (int i=0; i<(int)g_coords.size(); ++i) {
int n = g_evalCtrl.EvalLimitSample<OsdCpuVertexBuffer,OsdCpuGLVertexBuffer>( g_coords[i], g_evalCtx, i );
if (n) {
// point colors
switch (g_drawMode) {
case kUV : { float * color = g_Q->BindCpuBuffer() + i*g_Q->GetNumElements() + 3;
color[0] = g_coords[i].u;
color[1] = 0.0f;
color[2] = g_coords[i].v; } break;
case kVARYING : break;
case kFACEVARYING : break;
default : break;
}
#if defined(OPENSUBDIV_HAS_OPENMP) and defined(USE_OPENMP)
#pragma omp atomic
#endif
g_nsamplesFound += n;
} else {
// "hide" unfound samples (hole tags...) as a black dot at the origin
float * sample = g_Q->BindCpuBuffer() + i*g_Q->GetNumElements();
memset(sample, 0, g_Q->GetNumElements() * sizeof(float));
}
}
g_evalCtx->GetVertexData().Unbind();
switch (g_drawMode) {
case kVARYING : g_evalCtx->GetVaryingData().Unbind(); break;
case kFACEVARYING : g_evalCtx->GetFaceVaryingData().Unbind(); break;
default : break;
}
g_Q->BindVBO();
s.Stop();
g_evalTime = float(s.GetElapsed() * 1000.0f);
}
//------------------------------------------------------------------------------
static void
display() {
Stopwatch s;
s.Start();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, g_width, g_height);
g_hud.FillBackground();
double aspect = g_width/(double)g_height;
identity(g_transformData.ModelViewMatrix);
translate(g_transformData.ModelViewMatrix, -g_pan[0], -g_pan[1], -g_dolly);
rotate(g_transformData.ModelViewMatrix, g_rotate[1], 1, 0, 0);
rotate(g_transformData.ModelViewMatrix, g_rotate[0], 0, 1, 0);
rotate(g_transformData.ModelViewMatrix, -90, 1, 0, 0);
translate(g_transformData.ModelViewMatrix,
-g_center[0], -g_center[1], -g_center[2]);
perspective(g_transformData.ProjectionMatrix,
45.0f, (float)aspect, 0.01f, 500.0f);
multMatrix(g_transformData.ModelViewProjectionMatrix,
g_transformData.ModelViewMatrix,
g_transformData.ProjectionMatrix);
glEnable(GL_DEPTH_TEST);
s.Stop();
float drawCpuTime = float(s.GetElapsed() * 1000.0f);
s.Start();
glFinish();
s.Stop();
float drawGpuTime = float(s.GetElapsed() * 1000.0f);
drawSamples();
// draw the control mesh
g_controlMeshDisplay.Draw(
g_evalOutput->BindSourceData(), 3*sizeof(float),
g_transformData.ModelViewProjectionMatrix);
if (g_hud.IsVisible()) {
g_fpsTimer.Stop();
double elapsed = g_fpsTimer.GetElapsed();
g_fpsTimer.Start();
double fps = 1.0/elapsed;
if (g_animParticles) g_currentTime += (float)elapsed;
int nPatchCoords = (int)g_particles->GetPatchCoords().size();
g_hud.DrawString(10, -150, "Particle Speed ([) (]): %.1f", g_particles->GetSpeed());
g_hud.DrawString(10, -120, "# Samples : (%d / %d)", nPatchCoords, g_nParticles);
g_hud.DrawString(10, -100, "Compute : %.3f ms", g_computeTime);
g_hud.DrawString(10, -80, "Eval : %.3f ms", g_evalTime * 1000.f);
g_hud.DrawString(10, -60, "GPU Draw : %.3f ms", drawGpuTime);
g_hud.DrawString(10, -40, "CPU Draw : %.3f ms", drawCpuTime);
g_hud.DrawString(10, -20, "FPS : %3.1f", fps);
if (g_drawMode==kFACEVARYING) {
static char msg[] =
"ERROR: Face-varying interpolation hasn't been supported yet.";
g_hud.DrawString(g_width/4, g_height/4, 1, 0, 0, msg);
}
if (g_endCap != kEndCapBSplineBasis &&
(g_kernel != kCPU && g_kernel != kOPENMP && g_kernel != kTBB)) {
static char msg[] =
"ERROR: This kernel only supports BSpline basis patches.";
g_hud.DrawString(g_width/4, g_height/4+20, 1, 0, 0, msg);
}
g_hud.Flush();
}
glFinish();
GLUtils::CheckGLErrors("display leave");
}
//------------------------------------------------------------------------------
static void
updateGeom() {
int nverts = (int)g_orgPositions.size() / 3;
const float *p = &g_orgPositions[0];
float r = sin(g_frame*0.1f) * g_moveScale;
for (int i = 0; i < nverts; ++i) {
//float move = 0.05f*cosf(p[0]*20+g_frame*0.01f);
float ct = cos(p[2] * r);
float st = sin(p[2] * r);
g_positions[i*3+0] = p[0]*ct + p[1]*st;
g_positions[i*3+1] = -p[0]*st + p[1]*ct;
g_positions[i*3+2] = p[2];
p+=3;
}
// Run Compute pass to pose the control vertices ---------------------------
Stopwatch s;
s.Start();
// update coarse vertices
g_evalOutput->UpdateData(&g_positions[0], 0, nverts);
// update coarse varying
if (g_drawMode == kVARYING) {
g_evalOutput->UpdateVaryingData(&g_varyingColors[0], 0, nverts);
}
// Refine
g_evalOutput->Refine();
s.Stop();
g_computeTime = float(s.GetElapsed() * 1000.0f);
// Run Eval pass to get the samples locations ------------------------------
s.Start();
// Apply 'dynamics' update
assert(g_particles);
float elapsed = g_currentTime - g_prevTime;
g_particles->Update(elapsed);
g_prevTime = g_currentTime;
std::vector<OpenSubdiv::Osd::PatchCoord> const &patchCoords
= g_particles->GetPatchCoords();
// update patchcoord to be evaluated
g_evalOutput->UpdatePatchCoords(patchCoords);
// Evaluate the positions of the samples on the limit surface
if (g_drawMode == kNORMAL || g_drawMode == kSHADE) {
// evaluate positions and derivatives
g_evalOutput->EvalPatchesWithDerivatives();
} else {
// evaluate positions
g_evalOutput->EvalPatches();
}
// color
if (g_drawMode == kVARYING) {
// XXX: is this really varying?
g_evalOutput->EvalPatchesVarying();
}
s.Stop();
g_evalTime = float(s.GetElapsed());
}