| // Copyright 2017 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef GARNET_LIB_UI_GFX_RESOURCES_LIGHTS_DIRECTIONAL_LIGHT_H_ |
| #define GARNET_LIB_UI_GFX_RESOURCES_LIGHTS_DIRECTIONAL_LIGHT_H_ |
| |
| #include "garnet/lib/ui/gfx/resources/lights/light.h" |
| |
| namespace scenic_impl { |
| namespace gfx { |
| |
| class DirectionalLight final : public Light { |
| public: |
| static const ResourceTypeInfo kTypeInfo; |
| |
| DirectionalLight(Session* session, ResourceId id); |
| |
| // The direction will be normalized before storing. Returns false if the |
| // length of |direction| is nearly zero. |
| bool SetDirection(const glm::vec3& direction); |
| |
| // The normalized direction of the light source. |
| const glm::vec3& direction() const { return direction_; } |
| |
| // |Resource|. |
| void Accept(class ResourceVisitor* visitor) override; |
| |
| private: |
| glm::vec3 direction_ = {0.f, 0.f, -1.f}; |
| }; |
| |
| } // namespace gfx |
| } // namespace scenic_impl |
| |
| #endif // GARNET_LIB_UI_GFX_RESOURCES_LIGHTS_DIRECTIONAL_LIGHT_H_ |