116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
#ifndef ENGINE_RENDERLIGHTS_HH
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#define ENGINE_RENDERLIGHTS_HH
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#include <shared/gl.hh>
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#include <shared/tools.hh>
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#include <shared/geom.hh>
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#include "aa.hh"
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#define LIGHTTILE_MAXW 16
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#define LIGHTTILE_MAXH 16
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enum { L_NOSHADOW = 1<<0, L_NODYNSHADOW = 1<<1, L_VOLUMETRIC = 1<<2, L_NOSPEC = 1<<3, L_SMALPHA = 1<<4 };
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/* only for the inlines below */
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extern int lighttilealignw, lighttilealignh, lighttilevieww, lighttileviewh, lighttilew, lighttileh;
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extern int vieww, viewh; /* rendergl */
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template<class T>
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static inline void calctilebounds(float sx1, float sy1, float sx2, float sy2, T &bx1, T &by1, T &bx2, T &by2)
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{
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int tx1 = max(int(floor(((sx1 + 1)*0.5f*vieww)/lighttilealignw)), 0),
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ty1 = max(int(floor(((sy1 + 1)*0.5f*viewh)/lighttilealignh)), 0),
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tx2 = min(int(ceil(((sx2 + 1)*0.5f*vieww)/lighttilealignw)), lighttilevieww),
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ty2 = min(int(ceil(((sy2 + 1)*0.5f*viewh)/lighttilealignh)), lighttileviewh);
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bx1 = T((tx1 * lighttilew) / lighttilevieww);
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by1 = T((ty1 * lighttileh) / lighttileviewh);
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bx2 = T((tx2 * lighttilew + lighttilevieww - 1) / lighttilevieww);
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by2 = T((ty2 * lighttileh + lighttileviewh - 1) / lighttileviewh);
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}
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static inline void masktiles(uint *tiles, float sx1, float sy1, float sx2, float sy2)
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{
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int tx1, ty1, tx2, ty2;
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calctilebounds(sx1, sy1, sx2, sy2, tx1, ty1, tx2, ty2);
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for(int ty = ty1; ty < ty2; ty++) tiles[ty] |= ((1<<(tx2-tx1))-1)<<tx1;
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}
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enum { SM_NONE = 0, SM_REFLECT, SM_CUBEMAP, SM_CASCADE, SM_SPOT };
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extern int shadowmapping;
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extern matrix4 shadowmatrix;
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void loaddeferredlightshaders();
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void cleardeferredlightshaders();
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void clearshadowcache();
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void rendervolumetric();
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void cleanupvolumetric();
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static inline bool sphereinsidespot(const vec &dir, int spot, const vec ¢er, float radius)
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{
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const vec2 &sc = sincos360[spot];
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float cdist = dir.dot(center), cradius = radius + sc.y*cdist;
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return sc.x*sc.x*(center.dot(center) - cdist*cdist) <= cradius*cradius;
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}
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static inline bool bbinsidespot(const vec &origin, const vec &dir, int spot, const ivec &bbmin, const ivec &bbmax)
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{
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vec radius = vec(ivec(bbmax).sub(bbmin)).mul(0.5f), center = vec(bbmin).add(radius);
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return sphereinsidespot(dir, spot, center.sub(origin), radius.magnitude());
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}
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extern matrix4 worldmatrix, screenmatrix;
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struct extentity; // FIXME
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extern int transparentlayer;
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extern int gw, gh, ghasstencil;
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extern GLuint gdepthtex, gcolortex, gnormaltex, gglowtex;
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extern GLuint msdepthtex, mscolortex, msnormaltex, msglowtex;
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extern int msaasamples, msaalight;
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extern vector<vec2> msaapositions;
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int calcshadowinfo(const extentity &e, vec &origin, float &radius, vec &spotloc, int &spotangle, float &bias);
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void rendershadowatlas();
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bool useradiancehints();
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void renderradiancehints();
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void clearradiancehintscache();
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void cleanuplights();
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void workinoq();
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int calcbbcsmsplits(const ivec &bbmin, const ivec &bbmax);
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int calcspherecsmsplits(const vec ¢er, float radius);
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int calcbbrsmsplits(const ivec &bbmin, const ivec &bbmax);
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int calcspherersmsplits(const vec ¢er, float radius);
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void cleanupgbuffer();
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void initgbuffer();
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bool usepacknorm();
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void maskgbuffer(const char *mask);
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void bindgdepth();
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void preparegbuffer(bool depthclear = true);
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void rendergbuffer(bool depthclear = true);
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void shadesky();
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void shadegbuffer();
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void shademinimap(const vec &color = vec(-1, -1, -1));
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void shademodelpreview(int x, int y, int w, int h, bool background = true, bool scissor = false);
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void rendertransparent();
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void renderao();
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void loadhdrshaders(int aa = AA_UNUSED);
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void processhdr(GLuint outfbo = 0, int aa = AA_UNUSED);
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void copyhdr(int sw, int sh, GLuint fbo, int dw = 0, int dh = 0, bool flipx = false, bool flipy = false, bool swapxy = false);
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void setuplights();
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void setupgbuffer();
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GLuint shouldscale();
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void doscale(GLuint outfbo = 0);
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bool debuglights();
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extern int avatarmask;
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bool useavatarmask();
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void enableavatarmask();
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void disableavatarmask();
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#endif
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