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- clip sprites to linked sector portal planes.

Browse source 
This is the first part of properly handling those transitions.
This commit is contained in:
Christoph Oelckers 2016-04-18 16:27:04 +02:00
parent 990f5a79b4
commit 741f054601
2 changed files with 36 additions and 28 deletions
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37
src/gl/scene/gl_sprite.cpp
View file

@ -107,6 +107,8 @@ void gl_SetRenderStyle(FRenderStyle style, bool drawopaque, bool allowcolorblend
CVAR(Bool, gl_nolayer, false, 0)
static const float LARGE_VALUE = 1e19f;
//==========================================================================
//
//
@ -218,30 +220,25 @@ void GLSprite::Draw(int pass)
//gl_SetColor(lightlevel, rel, Colormap, trans);
unsigned int iter;
if (lightlist)
unsigned int iter = lightlist? lightlist->Size() : 1;
bool clipping = false;
if (lightlist || topclip != LARGE_VALUE || bottomclip != -LARGE_VALUE)
{
iter = lightlist->Size();
clipping = true;
gl_RenderState.EnableSplit(true);
glEnable(GL_CLIP_DISTANCE3);
glEnable(GL_CLIP_DISTANCE4);
}
else
{
iter = 1;
}
secplane_t bottomp = { { 0, 0, -1. }, bottomclip };
secplane_t topp = { { 0, 0, -1. }, topclip };
for (unsigned i = 0; i < iter; i++)
{
if (lightlist)
{
// set up the light slice
static secplane_t bottommost = { {0, 0, 1.}, FLT_MAX };
static secplane_t topmost = { { 0, 0, 1. }, -FLT_MAX };
secplane_t *topplane = i == 0 ? &topmost : &(*lightlist)[i].plane;
secplane_t *lowplane = i == (*lightlist).Size() - 1 ? &bottommost : &(*lightlist)[i + 1].plane;
secplane_t *topplane = i == 0 ? &topp : &(*lightlist)[i].plane;
secplane_t *lowplane = i == (*lightlist).Size() - 1 ? &bottomp : &(*lightlist)[i + 1].plane;
int thisll = (*lightlist)[i].caster != NULL ? gl_ClampLight(*(*lightlist)[i].p_lightlevel) : lightlevel;
FColormap thiscm;
@ -255,6 +252,10 @@ void GLSprite::Draw(int pass)
gl_SetColor(thisll, rel, thiscm, trans);
gl_RenderState.SetSplitPlanes(*topplane, *lowplane);
}
else if (clipping)
{
gl_RenderState.SetSplitPlanes(topp, bottomp);
}
if (!modelframe)
{
@ -330,7 +331,7 @@ void GLSprite::Draw(int pass)
}
}
if (lightlist)
if (clipping)
{
glDisable(GL_CLIP_DISTANCE3);
glDisable(GL_CLIP_DISTANCE4);
@ -476,7 +477,7 @@ void GLSprite::PerformSpriteClipAdjustment(AActor *thing, const DVector2 &thingp
//
//==========================================================================
void GLSprite::Process(AActor* thing,sector_t * sector)
void GLSprite::Process(AActor* thing, sector_t * sector, bool thruportal)
{
sector_t rs;
sector_t * rendersector;
@ -544,7 +545,7 @@ void GLSprite::Process(AActor* thing,sector_t * sector)
player_t *player = &players[consoleplayer];
FloatRect r;
if (sector->sectornum!=thing->Sector->sectornum)
if (sector->sectornum != thing->Sector->sectornum && !thruportal)
{
rendersector = gl_FakeFlat(thing->Sector, &rs, false);
}
@ -552,6 +553,8 @@ void GLSprite::Process(AActor* thing,sector_t * sector)
{
rendersector = sector;
}
topclip = rendersector->PortalBlocksMovement(sector_t::ceiling) ? LARGE_VALUE : rendersector->SkyBoxes[sector_t::ceiling]->specialf1;
bottomclip = rendersector->PortalBlocksMovement(sector_t::floor) ? -LARGE_VALUE : rendersector->SkyBoxes[sector_t::floor]->specialf1;
x = thingpos.X;
@ -892,6 +895,8 @@ void GLSprite::ProcessParticle (particle_t *particle, sector_t *sector)//, int s
modelframe=NULL;
gltexture=NULL;
topclip = LARGE_VALUE;
bottomclip = -LARGE_VALUE;
// [BB] Load the texture for round or smooth particles
if (gl_particles_style)

5
src/gl/scene/gl_wall.h
View file

@ -334,6 +334,9 @@ public:
int index;
int depth;
float topclip;
float bottomclip;
float x,y,z; // needed for sorting!
float ul,ur;
@ -354,7 +357,7 @@ public:
void Draw(int pass);
void PutSprite(bool translucent);
void Process(AActor* thing,sector_t * sector);
void Process(AActor* thing,sector_t * sector, bool thruportal = false);
void ProcessParticle (particle_t *particle, sector_t *sector);//, int shade, int fakeside)
void SetThingColor(PalEntry);