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#pragma once
#include "Renderable.h"
class RenderTexture;
class Texture;
class Vector2f;
class GfxDevice;
namespace Unity { class Material; }
// Image filters functionality. Only used internally by the camera (and other minor places).
class ImageFilters
{
public:
ImageFilters() : m_FirstTargetTexture(NULL), m_SecondTargetTexture(NULL), m_FinalTargetTexture(NULL) { }
void AddImageFilter (const ImageFilter& filter);
void RemoveImageFilter (const ImageFilter& filter);
bool HasImageFilter() const { return !(m_AfterOpaque.empty() && m_AfterEverything.empty()); }
bool HasAfterOpaqueFilters() const { return !m_AfterOpaque.empty(); }
void DoRender (RenderTexture* finalRT, bool forceIntoRT, bool afterOpaque, bool usingScreenToComposite, bool hdr = false);
void Prepare (bool forceIntoRT, bool hdr = false, int antiAliasing = 1);
RenderTexture* GetTargetBeforeOpaque ();
RenderTexture* GetTargetAfterOpaque (bool forceIntoRT, bool usingScreenToComposite);
RenderTexture* GetTargetFinal ();
RenderTexture* SwitchTargetToLDR (RenderTexture* oldRt, bool requestLinear);
void ReleaseTargetForLDR (RenderTexture** oldRt);
static void Blit (Texture* source, RenderTexture* dest);
static void Blit (Texture* source, RenderTexture* dest, Unity::Material* mat, int pass, bool setRT);
static void BlitMultiTap (Texture* source, RenderTexture* dest, Unity::Material* mat, int count, const Vector2f* offsets);
static void DrawQuadNoGPUTimestamp (GfxDevice& device, bool invertY, float uvX, float uvY);
static void DrawQuad (GfxDevice& device, bool invertY, float uvX, float uvY);
private:
static void SetCurrentRenderTarget (RenderTexture* dest, UInt32 flags);
private:
typedef std::vector<ImageFilter> Filters;
Filters m_AfterOpaque;
Filters m_AfterEverything;
RenderTexture* m_FirstTargetTexture; // has color & depth
RenderTexture* m_SecondTargetTexture; // has color only, reuses depth from first
RenderTexture* m_FinalTargetTexture;
};
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