void WorldRenderer::CreateShadowMap(const corgi::CameraInterface& camera,
fplbase::Renderer& renderer, World* world) {
float shadow_map_resolution = static_cast<float>(
world->config->rendering_config()->shadow_map_resolution());
float shadow_map_zoom = world->config->rendering_config()->shadow_map_zoom();
float shadow_map_offset =
world->config->rendering_config()->shadow_map_offset();
vec3 light_position =
LoadVec3(world->config->rendering_config()->light_position());
SetLightPosition(light_position);
light_camera_.set_viewport_angle(kShadowMapViewportAngle / shadow_map_zoom);
light_camera_.set_viewport_resolution(
vec2(shadow_map_resolution, shadow_map_resolution));
vec3 light_camera_focus =
camera.position() + camera.facing() * shadow_map_offset;
light_camera_focus.z() = 0;
vec3 light_facing = light_camera_focus - light_camera_.position();
light_camera_.set_facing(light_facing.Normalized());
// Shadow map needs to be cleared to near-white, since that's
// the maximum (furthest) depth.
shadow_map_.SetAsRenderTarget();
renderer.ClearFrameBuffer(kShadowMapClearColor);
renderer.SetCulling(fplbase::Renderer::kCullBack);
depth_shader_->Set(renderer);
// Generate the shadow map:
// TODO - modify this so that shadowcast is its own render pass
for (int pass = 0; pass < corgi::RenderPass_Count; pass++) {
world->render_mesh_component.RenderPass(pass, light_camera_,
renderer, depth_shader_);
}
}
void WorldRenderer::CreateShadowMap(const corgi::CameraInterface &camera,
fplbase::Renderer &renderer, World *world) {
PushDebugMarker("CreateShadowMap");
PushDebugMarker("Setup");
float shadow_map_resolution = static_cast<float>(
world->config->rendering_config()->shadow_map_resolution());
float shadow_map_zoom = world->config->rendering_config()->shadow_map_zoom();
float shadow_map_offset =
world->config->rendering_config()->shadow_map_offset();
LightComponent *light_component =
world->entity_manager.GetComponent<LightComponent>();
const EntityRef &main_light_entity = light_component->begin()->entity;
const TransformData *light_transform =
world->entity_manager.GetComponentData<TransformData>(main_light_entity);
vec3 light_position = light_transform->position;
SetLightPosition(light_position);
float viewport_angle =
world->config->rendering_config()->shadow_map_viewport_angle() *
kDegreesToRadians;
light_camera_.set_viewport_angle(viewport_angle / shadow_map_zoom);
light_camera_.set_viewport_resolution(
vec2(shadow_map_resolution, shadow_map_resolution));
vec3 light_camera_focus =
camera.position() + camera.facing() * shadow_map_offset;
light_camera_focus.z = 0;
vec3 light_facing = light_camera_focus - light_camera_.position();
light_camera_.set_facing(light_facing.Normalized());
// Shadow map needs to be cleared to near-white, since that's
// the maximum (furthest) depth.
shadow_map_.SetAsRenderTarget();
renderer.ClearFrameBuffer(kShadowMapClearColor);
renderer.SetCulling(fplbase::kCullingModeBack);
depth_shader_->Set(renderer);
depth_skinned_shader_->Set(renderer);
// Generate the shadow map:
// TODO - modify this so that shadowcast is its own render pass
PopDebugMarker(); // Setup
for (int pass = 0; pass < corgi::RenderPass_Count; pass++) {
PushDebugMarker("RenderPass");
world->render_mesh_component.RenderPass(pass, light_camera_, renderer,
ShaderIndex_Depth);
PopDebugMarker();
}
fplbase::RenderTarget::ScreenRenderTarget(renderer).SetAsRenderTarget();
PopDebugMarker(); // CreateShadowMap
}
void RenderWorld(fplbase::Renderer& renderer, World* world, Camera& camera,
Camera* cardboard_camera, fplbase::InputSystem* input_system) {
vec2 window_size = vec2(renderer.window_size());
world->river_component.UpdateRiverMeshes();
if (world->rendering_mode() == kRenderingStereoscopic) {
window_size.x = window_size.x / 2;
cardboard_camera->set_viewport_resolution(window_size);
}
camera.set_viewport_resolution(window_size);
if (world->rendering_mode() == kRenderingStereoscopic) {
// This takes care of setting/clearing the framebuffer for us.
RenderStereoscopic(renderer, world, camera, cardboard_camera, input_system);
} else {
// Always clear the framebuffer, even though we overwrite it with the
// skybox, since it's a speedup on tile-based architectures, see .e.g.:
// http://www.seas.upenn.edu/~pcozzi/OpenGLInsights/OpenGLInsights-TileBasedArchitectures.pdf
renderer.ClearFrameBuffer(mathfu::kZeros4f);
if (world->RenderingOptionEnabled(kShadowEffect)) {
world->world_renderer->RenderShadowMap(camera, renderer, world);
}
world->world_renderer->RenderWorld(camera, renderer, world);
}
}