Class Shade

extensions/olcPGEX_Shaders.h:271–381

	};

	class Shade : public olc::PGEX
	{
		friend class olc::Effect;

	public:
		Shade();

	public:
		olc::Effect MakeEffect(const olc::EffectConfig& premade);

	public:
		int32_t SetSourceDecal(olc::Decal* pDecal, const uint32_t nSlot = 0, const olc::vf2d& vSourcePos = { 0.0f, 0.0f }, const olc::vf2d& vSourceSize = { 1.0f, 1.0f });
		int32_t SetTargetDecal(olc::Decal* pDecal, const uint32_t nSlot = 0);
		int32_t Start(olc::Effect* pEffect);
		int32_t End();

	public: // Simplified Interface
		void Clear(const olc::Pixel& p = olc::BLANK);
		void DrawDecal(const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& scale = { 1.0f, 1.0f }, const olc::Pixel& tint = olc::WHITE);
		void DrawPartialDecal(const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::vf2d& scale = { 1.0f,1.0f }, const olc::Pixel& tint = olc::WHITE);
		void DrawPartialDecal(const olc::vf2d& pos, const olc::vf2d& size, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
		void DrawPolygonDecal(olc::Decal* decal, const std::vector<olc::vf2d>& pos, const std::vector<olc::vf2d>& uv, const std::vector<olc::Pixel>& colours);



	public: // Advanced Interface
		int32_t DrawQuad(const olc::vf2d& vPos, const olc::vf2d& vSize);

	private:

		struct sResourceSlot
		{
			bool bInUse = false;
			int nTargetResID = 0;
			olc::vf2d vPos = { 0.0f, 0.0f };
			olc::vf2d vSize = { 1.0f, 1.0f };
			olc::vf2d vInvSize = { 1.0f, 1.0f };
		};

		std::array<sResourceSlot, 8> slotTarget;
		std::array<sResourceSlot, 8> slotSource;


		struct sOmniVertex
		{
			float pos[3];
			olc::Pixel col;
			olc::vf2d tex[8];
		};

		uint32_t m_nVB = 0;
		uint32_t m_nVA = 0;

		sOmniVertex pVertexMem[olc::OLC_MAX_VERTS];

		uint32_t m_nFBO = 0;
		uint32_t m_nEffectID = 0;