1 files changed, 114 insertions, 0 deletions
diff --git a/Source/Graphics/flares.h b/Source/Graphics/flares.h
new file mode 100644
index 00000000..f547bc0c
--- /dev/null
+++ b/Source/Graphics/flares.h
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+//-----------------------------------------------------------------------------
+//           Name: flares.h
+//      Developer: Wolfire Games LLC
+//    Description: 
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#pragma once
+
+#include <Graphics/glstate.h>
+#include <Graphics/textureref.h>
+#include <Graphics/vbocontainer.h>
+
+#include <Math/vec3.h>
+
+#include <Asset/Asset/texture.h>
+
+#include <opengl.h>
+
+#include <vector>
+#include <map>
+
+//-----------------------------------------------------------------------------
+// Class Definition
+//-----------------------------------------------------------------------------
+
+const float _sharp_glare_threshold = 1.5f;
+const float _soft_glare_threshold = 2.5f;
+const float _no_glare_threshold = 4.0f;
+
+struct OccQuery{
+    bool started;
+    bool created;
+    GLuint id;
+
+    OccQuery();
+};
+
+struct Flare {
+    std::vector<OccQuery> query;
+    vec3 position;
+    vec3 old_position;
+    float brightness;
+    float diffuse;
+    bool distant;
+    float visible;
+    float slow_visible;
+    vec3 color;
+    float tex_opac[3];
+    float size_mult;
+    float visible_mult;
+};
+
+class SceneGraph;
+
+class Flares{
+public:
+    Flares();
+    ~Flares();
+
+    enum FlareType {
+        kDiffuse,
+        kSharp
+    };
+
+    SceneGraph *scenegraph;
+        
+    Flare* MakeFlare(vec3 _position, float _brightness, bool _distant);
+    void CleanupFlares();
+    void Draw(FlareType flare_type);
+    void Update(float timestep);
+    void DeleteFlare(Flare* flare);
+    std::vector<Flare*> flares;
+
+    void GetShaderNames(std::map<std::string, int>& preload_shaders);
+
+private:
+    VBOContainer vert_vbo;
+    VBOContainer index_vbo;
+    float animation;
+    float old_angle;
+    float new_angle;
+    GLState gl_state;
+    int shader_id;
+    const char* shader;
+    TextureAssetRef flare_texture_matte;
+    TextureAssetRef flare_texture_streaks;
+    TextureAssetRef flare_texture_blur1;
+    TextureAssetRef flare_texture_blur2;
+    TextureAssetRef flare_texture_color;
+    void DrawFlare(int which);
+    void OcclusionQuery(int which);
+    void DrawOcclusion(int which);
+public:
+
+
+};
+