void renderOctrees()
{
glClearColor (0.0,0.0,0.0,1.0);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
glDepthMask(GL_TRUE);
glDepthFunc(GL_LEQUAL);
glEnable(GL_COLOR_MATERIAL);
// glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
glEnable(GL_NORMALIZE);
glLoadIdentity();
//Add ambient light
//GLfloat ambientColor[] = {0.2f, 0.2f, 0.2f, 1.0f}; //Color (0.2, 0.2, 0.2)
//glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambientColor);
//Add positioned lights
GLfloat lightColor0[] = {0.5f, 0.5f, 0.5f, 1.0f}; //Color (0.5, 0.5, 0.5)
GLfloat lightPos0[] = {-1.0f, 1.0f, -1.0f, 1.0f};
glLightfv(GL_LIGHT0, GL_DIFFUSE, lightColor0);
glLightfv(GL_LIGHT0, GL_POSITION, lightPos0);
GLfloat lightColor1[] = {0.5f, 0.2f, 0.2f, 1.0f}; //Color (0.5, 0.2, 0.2)
GLfloat lightPos1[] = {-1.0f, 0.5f, 0.5f, 0.0f};
glLightfv(GL_LIGHT1, GL_SPECULAR, lightColor1);
glLightfv(GL_LIGHT1, GL_POSITION, lightPos1);
glOrtho(-2.0, 2.0, -2.0, 2.0, 0.1, 4);
gluLookAt(sin(_eyex)*2, 0, cos(_eyex)*2, 0, 0, 0, 0, -1, 0);
glColor3f(1.0, 1.0, 1.0);
glRotatef(_anglex,1.0,0.0,0.0);
glRotatef(_angley,0,1.0,0.0);
drawOctree(&octsphere, -0.75, 0.0, 0.0, 1.0);
glColor3f(1, 1, 1.0);
drawOctree(&octabs, 0.75, 0.0, 0.0, 1.0);
glFlush();
}
void COctree::drawOctree(OctreeNode* node, gxHWShader* shader)
{
if(!node) return;
#if defined (USE_ProgrammablePipeLine)
float r=(float)node->getLevel()/(float)m_nMaxLevel;
if(node->getLevel()<m_nMaxLevel)
{
shader->sendUniform4f("u_diffuse_v4", r, 0.0f, 0.0f, 1.0f);
node->getAABB().draw(shader);
}
else
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
shader->sendUniform4f("u_diffuse_v4", r, 0.0f, 0.0f, 0.8f);
node->getAABB().draw(shader);
glDisable(GL_BLEND);
}
#else
glDisable(GL_LIGHTING);
float r=(float)node->getLevel()/(float)m_nMaxLevel;
if(node->getLevel()<m_nMaxLevel)
{
glColor4f(r, 0.0f, 0.0f, 1.0f);
node->getAABB().draw();
}
else
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4f(r, 0.0f, 0.0f, 0.8f);
node->getAABB().draw(true);
glDisable(GL_BLEND);
}
#endif
for(int x=0;x<MAX_OCTREECHILD;x++)
drawOctree(node->getChild(x), shader);
}
