/**
* Generates a shadow map into the specified framebuffer.
* @param rstate RenderState with rendering parameters
* @param camera camera with light viewpoint
* @param framebufferId ID of framebuffer to render shadow map into
* @param scene_objects temporary storage for culling
* @see Light::makeShadowMap Renderer::makeShadowMaps
*/
void GLRenderer::renderShadowMap(RenderState& rstate, Camera* camera, GLuint framebufferId, std::vector<SceneObject*>& scene_objects) {
cullFromCamera(rstate.scene, camera, rstate.shader_manager, scene_objects);
GLint drawFbo = 0, readFbo = 0;
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &drawFbo);
glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &readFbo);
const GLenum attachments[] = {GL_COLOR_ATTACHMENT0, GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT};
GL(glBindFramebuffer(GL_FRAMEBUFFER, framebufferId));
GL(glInvalidateFramebuffer(GL_FRAMEBUFFER, 3, attachments));
GL(glViewport(rstate.viewportX, rstate.viewportY, rstate.viewportWidth, rstate.viewportHeight));
glClearColor(0,0,0,1);
GL(glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT));
rstate.shadow_map = true;
for (auto it = render_data_vector.begin();
it != render_data_vector.end(); ++it) {
RenderData* rdata = *it;
if (rdata->cast_shadows()) {
GL(renderRenderData(rstate, rdata));
}
}
rstate.shadow_map = false;
GL(glInvalidateFramebuffer(GL_FRAMEBUFFER, 2, &attachments[1]));
glBindFramebuffer(GL_READ_FRAMEBUFFER, readFbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, drawFbo);
}
/**
* Generates a shadow map into the specified framebuffer.
* @param rstate RenderState with rendering parameters
* @param camera camera with light viewpoint
* @param framebufferId ID of framebuffer to render shadow map into
* @param scene_objects temporary storage for culling
* @see Light::makeShadowMap Renderer::makeShadowMaps
*/
void Renderer::renderShadowMap(RenderState& rstate, Camera* camera, GLuint framebufferId, std::vector<SceneObject*>& scene_objects) {
cullFromCamera(rstate.scene, camera, rstate.shader_manager, scene_objects);
GL(glBindFramebuffer(GL_FRAMEBUFFER, framebufferId));
GL(glViewport(rstate.viewportX, rstate.viewportY, rstate.viewportWidth, rstate.viewportHeight));
glClearColor(0,0,0,1);
GL(glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT));
for (auto it = render_data_vector.begin();
it != render_data_vector.end(); ++it) {
GL(renderRenderData(rstate, *it));
}
}
void Renderer::cull(Scene *scene, Camera *camera,
ShaderManager* shader_manager) {
if (camera->owner_object() == 0
|| camera->owner_object()->transform() == nullptr) {
return;
}
cullFromCamera(scene, camera, shader_manager);
// Note: this needs to be scaled to sort on N states
state_sort();
if(do_batching && !gRenderer->isVulkanInstace()){
batch_manager->batchSetup(render_data_vector);
}
}
void Renderer::cull(Scene *scene, Camera *camera,
ShaderManager* shader_manager) {
if (camera->owner_object() == 0
|| camera->owner_object()->transform() == nullptr) {
return;
}
std::vector<SceneObject*> scene_objects;
scene_objects.reserve(1024);
// makeShadowMaps(scene, shader_manager);
cullFromCamera(scene, camera, shader_manager, scene_objects);
// Note: this needs to be scaled to sort on N states
state_sort();
}