void
BasicCompositorImpl::render(SceneContext& sc, SceneGraph* sg, const GraphicContextState& gc_state)
{
// Resize Lightmap, only needed in the editor, FIXME: move this into a 'set_size()' call
if (m_lightmap->get_width() != m_window.width /LIGHTMAP_DIV ||
m_lightmap->get_height() != m_window.height/LIGHTMAP_DIV)
{
m_lightmap = Surface::create(m_window.width / LIGHTMAP_DIV, m_window.height / LIGHTMAP_DIV);
}
if (sc.get_render_mask() & SceneContext::LIGHTMAPSCREEN)
{
// Render the lightmap to the framebuffers->lightmap
glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glScalef(1.0f / LIGHTMAP_DIV, 1.0f / LIGHTMAP_DIV, 1.0f);
sc.light().render();
glPopMatrix();
if (sg)
{
glPushMatrix();
glScalef(1.0f / LIGHTMAP_DIV, 1.0f / LIGHTMAP_DIV, 1.0f);
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::LIGHTMAP);
glPopMatrix();
}
{ // Copy lightmap to a texture
OpenGLState state;
state.bind_texture(m_lightmap->get_texture());
state.activate();
glCopyTexSubImage2D(GL_TEXTURE_2D,
0, // mipmap level
0, 0, // xoffset, yoffset
0, // x
m_window.height - static_cast<GLsizei>(m_lightmap->get_height()), // y (OpenGL is upside down)
static_cast<GLsizei>(m_lightmap->get_width()),
static_cast<GLsizei>(m_lightmap->get_height()));
}
}
if (sc.get_render_mask() & SceneContext::COLORMAP)
{
// Render the colormap to the framebuffers->screen
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
sc.color().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::COLORMAP);
glPopMatrix();
}
}
if (sc.get_render_mask() & SceneContext::LIGHTMAP)
{ // Renders the lightmap to the screen
OpenGLState state;
state.bind_texture(m_lightmap->get_texture());
state.enable(GL_BLEND);
state.set_blend_func(GL_DST_COLOR, GL_ZERO);
state.activate();
glBegin(GL_QUADS);
glTexCoord2f(m_lightmap->get_uv().left, m_lightmap->get_uv().bottom);
glVertex2i(0, 0);
glTexCoord2f(m_lightmap->get_uv().right, m_lightmap->get_uv().bottom);
glVertex2i(m_viewport.width, 0);
glTexCoord2f(m_lightmap->get_uv().right, m_lightmap->get_uv().top);
glVertex2i(m_viewport.width, m_viewport.height);
glTexCoord2f(m_lightmap->get_uv().left, m_lightmap->get_uv().top);
glVertex2i(0, m_viewport.height);
glEnd();
}
if (sc.get_render_mask() & SceneContext::HIGHLIGHTMAP)
{
sc.highlight().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::HIGHLIGHTMAP);
glPopMatrix();
}
}
if (sc.get_render_mask() & SceneContext::CONTROLMAP)
{
sc.control().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::CONTROLMAP);
glPopMatrix();
}
}
// Clear all DrawingContexts
sc.color().clear();
sc.light().clear();
sc.highlight().clear();
sc.control().clear();
}
void
FramebufferCompositorImpl::render(SceneContext& sc, SceneGraph* sg, const GraphicContextState& gc_state)
{
if (sc.get_render_mask() & SceneContext::LIGHTMAPSCREEN)
{
// Render the lightmap to framebuffers->lightmap
Display::push_framebuffer(m_lightmap);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(0.0f, static_cast<float>(m_viewport.height - (m_viewport.height / LIGHTMAP_DIV)), 0.0f);
glScalef(1.0f / LIGHTMAP_DIV, 1.0f / LIGHTMAP_DIV, 1.0f / LIGHTMAP_DIV);
sc.light().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::LIGHTMAP);
glPopMatrix();
}
glPopMatrix();
Display::pop_framebuffer();
}
{ // Render the main screen
Display::push_framebuffer(m_screen);
if (sc.get_render_mask() & SceneContext::COLORMAP)
{
// Render the colormap to framebuffers->screen
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
sc.color().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::COLORMAP);
glPopMatrix();
}
}
if (sc.get_render_mask() & SceneContext::LIGHTMAP)
{ // Renders the lightmap to the screen
render_lightmap(sc, sg);
}
if (sc.get_render_mask() & SceneContext::HIGHLIGHTMAP)
{
sc.highlight().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::HIGHLIGHTMAP);
glPopMatrix();
}
}
if (sc.get_render_mask() & SceneContext::CONTROLMAP)
{
sc.control().render();
if (sg)
{
glPushMatrix();
glMultMatrixf(gc_state.get_matrix().matrix);
sg->render(SceneContext::CONTROLMAP);
glPopMatrix();
}
}
Display::pop_framebuffer();
}
if (1)
{
// Render the screen framebuffer to the actual screen
OpenGLState state;
state.bind_texture(m_screen->get_texture(), 0);
state.activate();
glBegin(GL_QUADS);
{
glTexCoord2i(0, 1);
glVertex2i(0, 0);
glTexCoord2i(1, 1);
glVertex2i(m_viewport.width, 0);
glTexCoord2i(1, 0);
glVertex2i(m_viewport.width, m_viewport.height);
glTexCoord2i(0, 0);
glVertex2i(0.0f, m_viewport.height);
}
glEnd();
}
// Clear all DrawingContexts
sc.color().clear();
sc.light().clear();
sc.highlight().clear();
sc.control().clear();
}