// Display handles all drawing per frame. We first call the setupForDisplay
// helper method to setup some uninteresting GL state and then bind the mesh
// using the buffers provided by our OSD objects
//
void
display()
{
setupForDisplay(g_width, g_height, g_size, g_center);
//
// Bind the GL vertex and index buffers
//
glBindBuffer(GL_ARRAY_BUFFER, g_vertexBuffer->BindVBO());
OpenSubdiv::OsdDrawContext::PatchArrayVector const & patches = g_drawContext->patchArrays;
for (int i=0; i<(int)patches.size(); ++i) {
OpenSubdiv::OsdDrawContext::PatchArray const & patch = patches[i];
//
// Bind the solid shaded program and draw elements based on the buffer contents
//
bindProgram(g_quadFillProgram);
glDrawElements(GL_LINES_ADJACENCY, patch.GetNumIndices(),
GL_UNSIGNED_INT, NULL);
//
// Draw the wire frame over the solid shaded mesh
//
bindProgram(g_quadLineProgram);
glUniform4f(glGetUniformLocation(g_quadLineProgram, "fragColor"),
0, 0, 0.5, 1);
glDrawElements(GL_LINES_ADJACENCY, patch.GetNumIndices(),
GL_UNSIGNED_INT, NULL);
}
//
// This isn't strictly necessary, but unbind the GL state
//
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
//glDisableClientState(GL_VERTEX_ARRAY);
//
// Draw the HUD/status text
//
//glColor3f(1, 1, 1);
drawString(10, 10, "LEVEL = %d", g_level);
drawString(10, 30, "# of Vertices = %d", g_farmesh->GetNumVertices());
drawString(10, 50, "KERNEL = CPU");
drawString(10, 70, "SUBDIVISION = %s", "CATMARK");
//
// Finish the current frame
//
glFinish();
}
// Display handles all drawing per frame. We first call the setupForDisplay
// helper method to setup some uninteresting GL state and then bind the mesh
// using the buffers provided by our OSD objects
//
void
display()
{
setupForDisplay(g_width, g_height, g_size, g_center);
//
// Bind the GL vertex and index buffers
//
glBindBuffer(GL_ARRAY_BUFFER, g_vertexBuffer->GetGpuBuffer());
//
// Bind the solid shaded program and draw elements based on the buffer contents
//
bindProgram(g_quadFillProgram);
glDrawElements(GL_LINES_ADJACENCY, g_elementArrayBuffer->GetNumIndices(),
GL_UNSIGNED_INT, NULL);
//
// Draw the wire frame over the solid shaded mesh
//
bindProgram(g_quadLineProgram);
glUniform4f(glGetUniformLocation(g_quadLineProgram, "fragColor"),
0, 0, 0.5, 1);
glDrawElements(GL_LINES_ADJACENCY, g_elementArrayBuffer->GetNumIndices(),
GL_UNSIGNED_INT, NULL);
//
// This isn't strictly necessary, but unbind the GL state
//
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
//glDisableClientState(GL_VERTEX_ARRAY);
//
// Draw the HUD/status text
//
//glColor3f(1, 1, 1);
drawString(10, 10, "LEVEL = %d", g_level);
drawString(10, 30, "# of Vertices = %d", g_osdmesh->GetFarMesh()->GetNumVertices());
drawString(10, 50, "KERNEL = CPU");
drawString(10, 70, "SUBDIVISION = %s", "CATMARK");
//
// Finish the current frame
//
glFinish();
}
