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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef PROJECTILE_DRAWER_HDR
#define PROJECTILE_DRAWER_HDR
#include <array>
#include "Rendering/GL/myGL.h"
#include "Rendering/GL/VAO.h"
#include "Rendering/GL/FBO.h"
#include "Rendering/GL/RenderDataBufferFwd.hpp"
#include "Rendering/Models/3DModel.h"
#include "Rendering/Models/ModelRenderContainer.h"
#include "Sim/Projectiles/ProjectileFunctors.h"
#include "System/EventClient.h"
#include "System/UnorderedSet.hpp"
class CSolidObject;
class CTextureAtlas;
struct AtlasedTexture;
class CGroundFlash;
struct FlyingPiece;
class LuaTable;
namespace Shader {
struct IProgramObject;
};
class CProjectileDrawer: public CEventClient {
public:
CProjectileDrawer(): CEventClient("[CProjectileDrawer]", 123456, false), perlinNoiseFBO(true) {}
static void InitStatic();
static void KillStatic(bool reload);
void Init();
void Kill();
void Draw(bool drawReflection, bool drawRefraction = false);
void DrawProjectilesMiniMap();
void DrawGroundFlashes();
void DrawShadowPass();
void LoadWeaponTextures();
void UpdateTextures();
bool WantsEvent(const std::string& eventName) override {
return (eventName == "RenderProjectileCreated" || eventName == "RenderProjectileDestroyed");
}
bool GetFullRead() const override { return true; }
int GetReadAllyTeam() const override { return AllAccessTeam; }
void RenderProjectileCreated(const CProjectile* projectile) override;
void RenderProjectileDestroyed(const CProjectile* projectile) override;
unsigned int NumSmokeTextures() const { return (smokeTextures.size()); }
void IncPerlinTexObjectCount() { perlinData.texObjects++; }
void DecPerlinTexObjectCount() { perlinData.texObjects--; }
bool EnableSorting(bool b) { return (drawSorted = b); }
bool ToggleSorting( ) { return (drawSorted = !drawSorted); }
const AtlasedTexture* GetSmokeTexture(unsigned int i) const { return smokeTextures[i]; }
GL::RenderDataBufferTC* fxBuffer = nullptr;
GL::RenderDataBufferTC* gfBuffer = nullptr;
Shader::IProgramObject* fxShader = nullptr;
Shader::IProgramObject* gfShader = nullptr;
CTextureAtlas* textureAtlas = nullptr; ///< texture atlas for projectiles
CTextureAtlas* groundFXAtlas = nullptr; ///< texture atlas for ground fx
// texture-coordinates for projectiles
AtlasedTexture* flaretex = nullptr;
AtlasedTexture* dguntex = nullptr; ///< dgun texture
AtlasedTexture* flareprojectiletex = nullptr; ///< texture used by flares that trick missiles
AtlasedTexture* sbtrailtex = nullptr; ///< default first section of starburst missile trail texture
AtlasedTexture* missiletrailtex = nullptr; ///< default first section of missile trail texture
AtlasedTexture* muzzleflametex = nullptr; ///< default muzzle flame texture
AtlasedTexture* repulsetex = nullptr; ///< texture of impact on repulsor
AtlasedTexture* sbflaretex = nullptr; ///< default starburst missile flare texture
AtlasedTexture* missileflaretex = nullptr; ///< default missile flare texture
AtlasedTexture* beamlaserflaretex = nullptr; ///< default beam laser flare texture
AtlasedTexture* explotex = nullptr;
AtlasedTexture* explofadetex = nullptr;
AtlasedTexture* heatcloudtex = nullptr;
AtlasedTexture* circularthingytex = nullptr;
AtlasedTexture* bubbletex = nullptr; ///< torpedo trail texture
AtlasedTexture* geosquaretex = nullptr; ///< unknown use
AtlasedTexture* gfxtex = nullptr; ///< nanospray texture
AtlasedTexture* projectiletex = nullptr; ///< appears to be unused
AtlasedTexture* repulsegfxtex = nullptr; ///< used by repulsor
AtlasedTexture* sphereparttex = nullptr; ///< sphere explosion texture
AtlasedTexture* torpedotex = nullptr; ///< appears in-game as a 1 texel texture
AtlasedTexture* wrecktex = nullptr; ///< smoking explosion part texture
AtlasedTexture* plasmatex = nullptr; ///< default plasma texture
AtlasedTexture* laserendtex = nullptr;
AtlasedTexture* laserfallofftex = nullptr;
AtlasedTexture* randdotstex = nullptr;
AtlasedTexture* smoketrailtex = nullptr;
AtlasedTexture* waketex = nullptr;
AtlasedTexture* perlintex = nullptr;
AtlasedTexture* flametex = nullptr;
AtlasedTexture* groundflashtex = nullptr;
AtlasedTexture* groundringtex = nullptr;
AtlasedTexture* seismictex = nullptr;
private:
static void ParseAtlasTextures(const bool, const LuaTable&, spring::unordered_set<std::string>&, CTextureAtlas*);
void DrawProjectilePass(Shader::IProgramObject*, bool, bool);
void DrawParticlePass(Shader::IProgramObject*, bool, bool);
void DrawProjectileShadowPass(Shader::IProgramObject*);
void DrawParticleShadowPass(Shader::IProgramObject*);
void DrawProjectiles(int modelType, bool drawReflection, bool drawRefraction);
void DrawProjectilesShadow(int modelType);
void DrawFlyingPieces(int modelType);
void DrawProjectilesSet(const std::vector<CProjectile*>& projectiles, bool drawReflection, bool drawRefraction);
void DrawProjectilesSetShadow(const std::vector<CProjectile*>& projectiles);
static bool CanDrawProjectile(const CProjectile* pro, const CSolidObject* owner);
void DrawProjectileNow(CProjectile* projectile, bool drawReflection, bool drawRefraction);
void DrawProjectileShadow(const CProjectile* projectile);
static bool DrawProjectileModel(const CProjectile* projectile);
void UpdatePerlin();
static void GenerateNoiseTex(unsigned int tex);
private:
struct PerlinData {
static constexpr int blendTexSize = 16;
static constexpr int noiseTexSize = 128;
GLuint blendTextures[8];
float blendWeights[4];
int texObjects = 0;
bool fboComplete = false;
};
PerlinData perlinData;
FBO perlinNoiseFBO;
VAO flyingPieceVAO;
ProjectileDistanceComparator zSortCmp;
std::vector<const AtlasedTexture*> smokeTextures;
/// projectiles without a model, e.g. nano-particles
std::vector<CProjectile*> renderProjectiles;
/// projectiles with a model
std::array<ModelRenderContainer<CProjectile>, MODELTYPE_OTHER> modelRenderers;
/// {[0] := unsorted, [1] := distance-sorted} projectiles;
/// used to render particle effects in back-to-front order
std::vector<CProjectile*> sortedProjectiles[2];
bool drawSorted = true;
};
extern CProjectileDrawer* projectileDrawer;
#endif // PROJECTILE_DRAWER_HDR
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