//==========================================================================
//
//
//
//==========================================================================
void GLFlat::Draw(int pass, bool trans) // trans only has meaning for GLPASS_LIGHTSONLY
{
int rel = getExtraLight();
#ifdef _DEBUG
if (sector->sectornum == gl_breaksec)
{
int a = 0;
}
#endif
switch (pass)
{
case GLPASS_PLAIN: // Single-pass rendering
case GLPASS_ALL:
gl_SetColor(lightlevel, rel, Colormap,1.0f);
gl_SetFog(lightlevel, rel, &Colormap, false);
gl_RenderState.SetMaterial(gltexture, CLAMP_NONE, 0, -1, false);
gl_SetPlaneTextureRotation(&plane, gltexture);
DrawSubsectors(pass, (pass == GLPASS_ALL || dynlightindex > -1), false);
gl_RenderState.EnableTextureMatrix(false);
break;
case GLPASS_LIGHTSONLY:
if (!trans || gltexture)
{
ProcessLights(trans);
}
break;
case GLPASS_TRANSLUCENT:
if (renderstyle==STYLE_Add) gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE);
gl_SetColor(lightlevel, rel, Colormap, alpha);
gl_SetFog(lightlevel, rel, &Colormap, false);
gl_RenderState.AlphaFunc(GL_GEQUAL, gl_mask_threshold);
if (!gltexture)
{
gl_RenderState.EnableTexture(false);
DrawSubsectors(pass, false, true);
gl_RenderState.EnableTexture(true);
}
else
{
gl_RenderState.SetMaterial(gltexture, CLAMP_NONE, 0, -1, false);
gl_SetPlaneTextureRotation(&plane, gltexture);
DrawSubsectors(pass, true, true);
gl_RenderState.EnableTextureMatrix(false);
}
if (renderstyle==STYLE_Add) gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
}
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//
//
// Horizon Portal
//
// This simply draws the area in medium sized squares. Drawing it as a whole
// polygon creates visible inaccuracies.
//
// Originally I tried to minimize the amount of data to be drawn but there
// are 2 problems with it:
//
// 1. Setting this up completely negates any performance gains.
// 2. It doesn't work with a 360° field of view (as when you are looking up.)
//
//
// So the brute force mechanism is just as good.
//
//
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//
// GLHorizonPortal::DrawContents
//
//-----------------------------------------------------------------------------
void GLHorizonPortal::DrawContents()
{
PortalAll.Clock();
GLSectorPlane * sp=&origin->plane;
FMaterial * gltexture;
PalEntry color;
float z;
player_t * player=&players[consoleplayer];
gltexture=FMaterial::ValidateTexture(sp->texture, true);
if (!gltexture)
{
ClearScreen();
PortalAll.Unclock();
return;
}
z=FIXED2FLOAT(sp->texheight);
if (gltexture && gltexture->tex->isFullbright())
{
// glowing textures are always drawn full bright without color
gl_SetColor(255, 0, NULL, 1.f);
gl_SetFog(255, 0, &origin->colormap, false);
}
else
{
int rel = getExtraLight();
gl_SetColor(origin->lightlevel, rel, &origin->colormap, 1.0f);
gl_SetFog(origin->lightlevel, rel, &origin->colormap, false);
}
gltexture->Bind(origin->colormap.colormap);
gl_RenderState.EnableAlphaTest(false);
gl_RenderState.BlendFunc(GL_ONE,GL_ZERO);
gl_RenderState.Apply();
bool pushed = gl_SetPlaneTextureRotation(sp, gltexture);
float vx=FIXED2FLOAT(viewx);
float vy=FIXED2FLOAT(viewy);
// Draw to some far away boundary
for(float x=-32768+vx; x<32768+vx; x+=4096)
{
for(float y=-32768+vy; y<32768+vy;y+=4096)
{
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(x/64, -y/64);
glVertex3f(x, z, y);
glTexCoord2f(x/64 + 64, -y/64);
glVertex3f(x + 4096, z, y);
glTexCoord2f(x/64 + 64, -y/64 - 64);
glVertex3f(x + 4096, z, y + 4096);
glTexCoord2f(x/64, -y/64 - 64);
glVertex3f(x, z, y + 4096);
glEnd();
}
}
float vz=FIXED2FLOAT(viewz);
float tz=(z-vz);///64.0f;
// fill the gap between the polygon and the true horizon
// Since I can't draw into infinity there can always be a
// small gap
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(512.f, 0);
glVertex3f(-32768+vx, z, -32768+vy);
glTexCoord2f(512.f, tz);
glVertex3f(-32768+vx, vz, -32768+vy);
glTexCoord2f(-512.f, 0);
glVertex3f(-32768+vx, z, 32768+vy);
glTexCoord2f(-512.f, tz);
glVertex3f(-32768+vx, vz, 32768+vy);
glTexCoord2f(512.f, 0);
glVertex3f( 32768+vx, z, 32768+vy);
glTexCoord2f(512.f, tz);
glVertex3f( 32768+vx, vz, 32768+vy);
glTexCoord2f(-512.f, 0);
glVertex3f( 32768+vx, z, -32768+vy);
glTexCoord2f(-512.f, tz);
glVertex3f( 32768+vx, vz, -32768+vy);
glTexCoord2f(512.f, 0);
glVertex3f(-32768+vx, z, -32768+vy);
glTexCoord2f(512.f, tz);
glVertex3f(-32768+vx, vz, -32768+vy);
glEnd();
if (pushed)
{
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
PortalAll.Unclock();
}
//==========================================================================
//
// Draw the plane segment into the gap
//
//==========================================================================
void FDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, bool ceiling)
{
GLSectorPlane plane;
int lightlevel;
FColormap Colormap;
FMaterial * gltexture;
plane.GetFromSector(sec, ceiling);
gltexture=FMaterial::ValidateTexture(plane.texture, true);
if (!gltexture) return;
if (gl_fixedcolormap)
{
Colormap.Clear();
lightlevel=255;
}
else
{
Colormap=sec->ColorMap;
if (gltexture->tex->isFullbright())
{
Colormap.LightColor.r = Colormap.LightColor.g = Colormap.LightColor.b = 0xff;
lightlevel=255;
}
else lightlevel=abs(ceiling? sec->GetCeilingLight() : sec->GetFloorLight());
}
int rel = getExtraLight();
gl_SetColor(lightlevel, rel, Colormap, 1.0f);
gl_SetFog(lightlevel, rel, &Colormap, false);
gltexture->Bind();
float fviewx = FIXED2FLOAT(viewx);
float fviewy = FIXED2FLOAT(viewy);
float fviewz = FIXED2FLOAT(viewz);
gl_SetPlaneTextureRotation(&plane, gltexture);
gl_RenderState.Apply();
float prj_fac1 = (planez-fviewz)/(ws->z1-fviewz);
float prj_fac2 = (planez-fviewz)/(ws->z2-fviewz);
float px1 = fviewx + prj_fac1 * (ws->x1-fviewx);
float py1 = fviewy + prj_fac1 * (ws->y1-fviewy);
float px2 = fviewx + prj_fac2 * (ws->x1-fviewx);
float py2 = fviewy + prj_fac2 * (ws->y1-fviewy);
float px3 = fviewx + prj_fac2 * (ws->x2-fviewx);
float py3 = fviewy + prj_fac2 * (ws->y2-fviewy);
float px4 = fviewx + prj_fac1 * (ws->x2-fviewx);
float py4 = fviewy + prj_fac1 * (ws->y2-fviewy);
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(px1, planez, py1, px1 / 64, -py1 / 64);
ptr++;
ptr->Set(px2, planez, py2, px2 / 64, -py2 / 64);
ptr++;
ptr->Set(px3, planez, py3, px3 / 64, -py3 / 64);
ptr++;
ptr->Set(px4, planez, py4, px4 / 64, -py4 / 64);
ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_FAN);
gl_RenderState.EnableTextureMatrix(false);
}
//==========================================================================
//
// Draw the plane segment into the gap
//
//==========================================================================
void FDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, bool ceiling)
{
GLSectorPlane plane;
int lightlevel;
FColormap Colormap;
FMaterial * gltexture;
plane.GetFromSector(sec, ceiling);
gltexture=FMaterial::ValidateTexture(plane.texture, true);
if (!gltexture) return;
if (gl_fixedcolormap)
{
Colormap.GetFixedColormap();
lightlevel=255;
}
else
{
Colormap=sec->ColorMap;
if (gltexture->tex->isFullbright())
{
Colormap.LightColor.r = Colormap.LightColor.g = Colormap.LightColor.b = 0xff;
lightlevel=255;
}
else lightlevel=abs(ceiling? sec->GetCeilingLight() : sec->GetFloorLight());
}
int rel = getExtraLight();
gl_SetColor(lightlevel, rel, &Colormap, 1.0f);
gl_SetFog(lightlevel, rel, &Colormap, false);
gltexture->Bind(Colormap.colormap);
float fviewx = FIXED2FLOAT(viewx);
float fviewy = FIXED2FLOAT(viewy);
float fviewz = FIXED2FLOAT(viewz);
gl_RenderState.Apply();
bool pushed = gl_SetPlaneTextureRotation(&plane, gltexture);
glBegin(GL_TRIANGLE_FAN);
float prj_fac1 = (planez-fviewz)/(ws->z1-fviewz);
float prj_fac2 = (planez-fviewz)/(ws->z2-fviewz);
float px1 = fviewx + prj_fac1 * (ws->x1-fviewx);
float py1 = fviewy + prj_fac1 * (ws->y1-fviewy);
float px2 = fviewx + prj_fac2 * (ws->x1-fviewx);
float py2 = fviewy + prj_fac2 * (ws->y1-fviewy);
float px3 = fviewx + prj_fac2 * (ws->x2-fviewx);
float py3 = fviewy + prj_fac2 * (ws->y2-fviewy);
float px4 = fviewx + prj_fac1 * (ws->x2-fviewx);
float py4 = fviewy + prj_fac1 * (ws->y2-fviewy);
glTexCoord2f(px1 / 64, -py1 / 64);
glVertex3f(px1, planez, py1);
glTexCoord2f(px2 / 64, -py2 / 64);
glVertex3f(px2, planez, py2);
glTexCoord2f(px3 / 64, -py3 / 64);
glVertex3f(px3, planez, py3);
glTexCoord2f(px4 / 64, -py4 / 64);
glVertex3f(px4, planez, py4);
glEnd();
if (pushed)
{
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
}
//==========================================================================
//
// Draw the plane segment into the gap
//
//==========================================================================
void FDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, bool ceiling)
{
GLSectorPlane plane;
int lightlevel;
FColormap Colormap;
FMaterial * gltexture;
plane.GetFromSector(sec, ceiling);
gltexture=FMaterial::ValidateTexture(plane.texture, false, true);
if (!gltexture) return;
if (gl_fixedcolormap)
{
Colormap.Clear();
lightlevel=255;
}
else
{
Colormap=sec->ColorMap;
if (gltexture->tex->isFullbright())
{
Colormap.LightColor.r = Colormap.LightColor.g = Colormap.LightColor.b = 0xff;
lightlevel=255;
}
else lightlevel=abs(ceiling? sec->GetCeilingLight() : sec->GetFloorLight());
}
int rel = getExtraLight();
gl_SetColor(lightlevel, rel, Colormap, 1.0f);
gl_SetFog(lightlevel, rel, &Colormap, false);
gl_RenderState.SetMaterial(gltexture, CLAMP_NONE, 0, -1, false);
float fviewx = ViewPos.X;
float fviewy = ViewPos.Y;
float fviewz = ViewPos.Z;
gl_SetPlaneTextureRotation(&plane, gltexture);
gl_RenderState.Apply();
float prj_fac1 = (planez-fviewz)/(ws->z1-fviewz);
float prj_fac2 = (planez-fviewz)/(ws->z2-fviewz);
float px1 = fviewx + prj_fac1 * (ws->x1-fviewx);
float py1 = fviewy + prj_fac1 * (ws->y1-fviewy);
float px2 = fviewx + prj_fac2 * (ws->x1-fviewx);
float py2 = fviewy + prj_fac2 * (ws->y1-fviewy);
float px3 = fviewx + prj_fac2 * (ws->x2-fviewx);
float py3 = fviewy + prj_fac2 * (ws->y2-fviewy);
float px4 = fviewx + prj_fac1 * (ws->x2-fviewx);
float py4 = fviewy + prj_fac1 * (ws->y2-fviewy);
FQuadDrawer qd;
qd.Set(0, px1, planez, py1, px1 / 64, -py1 / 64);
qd.Set(1, px2, planez, py2, px2 / 64, -py2 / 64);
qd.Set(2, px3, planez, py3, px3 / 64, -py3 / 64);
qd.Set(3, px4, planez, py4, px4 / 64, -py4 / 64);
qd.Render(GL_TRIANGLE_FAN);
gl_RenderState.EnableTextureMatrix(false);
}
//==========================================================================
//
// Draw the plane segment into the gap
//
//==========================================================================
void GLDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, bool ceiling)
{
GLSectorPlane plane;
int lightlevel;
FColormap Colormap;
FGLTexture * gltexture;
plane.GetFromSector(sec, ceiling);
gltexture=FGLTexture::ValidateTexture(plane.texture);
if (!gltexture) return;
if (gl_fixedcolormap)
{
Colormap.GetFixedColormap();
lightlevel=255;
}
else
{
Colormap=sec->ColorMap;
if (gltexture->tex->isFullbright())
{
Colormap.LightColor.r = Colormap.LightColor.g = Colormap.LightColor.b = 0xff;
lightlevel=255;
}
else lightlevel=abs(ceiling? GetCeilingLight(sec) : GetFloorLight(sec));
}
int rel = extralight * gl_weaponlight;
gl_SetColor(lightlevel, rel, &Colormap, 1.0f);
gl_SetFog(lightlevel, rel, &Colormap, false);
gltexture->Bind(Colormap.LightColor.a);
gl_SetPlaneTextureRotation(&plane, gltexture);
float fviewx = TO_GL(viewx);
float fviewy = TO_GL(viewy);
float fviewz = TO_GL(viewz);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
float prj_fac1 = (planez-fviewz)/(ws->z1-fviewz);
float prj_fac2 = (planez-fviewz)/(ws->z2-fviewz);
float px1 = fviewx + prj_fac1 * (ws->x1-fviewx);
float py1 = fviewy + prj_fac1 * (ws->y1-fviewy);
float px2 = fviewx + prj_fac2 * (ws->x1-fviewx);
float py2 = fviewy + prj_fac2 * (ws->y1-fviewy);
float px3 = fviewx + prj_fac2 * (ws->x2-fviewx);
float py3 = fviewy + prj_fac2 * (ws->y2-fviewy);
float px4 = fviewx + prj_fac1 * (ws->x2-fviewx);
float py4 = fviewy + prj_fac1 * (ws->y2-fviewy);
gl.TexCoord2f(px1 / 64, -py1 / 64);
gl.Vertex3f(px1, planez, py1);
gl.TexCoord2f(px2 / 64, -py2 / 64);
gl.Vertex3f(px2, planez, py2);
gl.TexCoord2f(px3 / 64, -py3 / 64);
gl.Vertex3f(px3, planez, py3);
gl.TexCoord2f(px4 / 64, -py4 / 64);
gl.Vertex3f(px4, planez, py4);
gl.End();
gl.MatrixMode(GL_TEXTURE);
gl.PopMatrix();
gl.MatrixMode(GL_MODELVIEW);
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//
//
// Horizon Portal
//
// This simply draws the area in medium sized squares. Drawing it as a whole
// polygon creates visible inaccuracies.
//
// Originally I tried to minimize the amount of data to be drawn but there
// are 2 problems with it:
//
// 1. Setting this up completely negates any performance gains.
// 2. It doesn't work with a 360° field of view (as when you are looking up.)
//
//
// So the brute force mechanism is just as good.
//
//
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//
// GLHorizonPortal::DrawContents
//
//-----------------------------------------------------------------------------
void GLHorizonPortal::DrawContents()
{
PortalAll.Clock();
GLSectorPlane * sp=&origin->plane;
FMaterial * gltexture;
PalEntry color;
float z;
player_t * player=&players[consoleplayer];
gltexture=FMaterial::ValidateTexture(sp->texture, false, true);
if (!gltexture)
{
ClearScreen();
PortalAll.Unclock();
return;
}
gl_RenderState.SetCameraPos(ViewPos.X, ViewPos.Y, ViewPos.Z);
z=sp->Texheight;
if (gltexture && gltexture->tex->isFullbright())
{
// glowing textures are always drawn full bright without color
gl_SetColor(255, 0, origin->colormap, 1.f);
gl_SetFog(255, 0, &origin->colormap, false);
}
else
{
int rel = getExtraLight();
gl_SetColor(origin->lightlevel, rel, origin->colormap, 1.0f);
gl_SetFog(origin->lightlevel, rel, &origin->colormap, false);
}
gl_RenderState.SetMaterial(gltexture, CLAMP_NONE, 0, -1, false);
gl_SetPlaneTextureRotation(sp, gltexture);
gl_RenderState.AlphaFunc(GL_GEQUAL, 0.f);
gl_RenderState.BlendFunc(GL_ONE,GL_ZERO);
gl_RenderState.Apply();
float vx= ViewPos.X;
float vy= ViewPos.Y;
// Draw to some far away boundary
// This is not drawn as larher strips because it causes visual glitches.
for(float x=-32768+vx; x<32768+vx; x+=4096)
{
for(float y=-32768+vy; y<32768+vy;y+=4096)
{
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(x, z, y, x / 64, -y / 64);
ptr++;
ptr->Set(x + 4096, z, y, x / 64 + 64, -y / 64);
ptr++;
ptr->Set(x, z, y + 4096, x / 64, -y / 64 - 64);
ptr++;
ptr->Set(x + 4096, z, y + 4096, x / 64 + 64, -y / 64 - 64);
ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
}
}
float vz= ViewPos.Z;
float tz=(z-vz);///64.0f;
// fill the gap between the polygon and the true horizon
// Since I can't draw into infinity there can always be a
// small gap
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(-32768 + vx, z, -32768 + vy, 512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, -32768 + vy, 512.f, tz);
ptr++;
ptr->Set(-32768 + vx, z, 32768 + vy, -512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, 32768 + vy, -512.f, tz);
ptr++;
ptr->Set(32768 + vx, z, 32768 + vy, 512.f, 0);
ptr++;
ptr->Set(32768 + vx, vz, 32768 + vy, 512.f, tz);
ptr++;
ptr->Set(32768 + vx, z, -32768 + vy, -512.f, 0);
ptr++;
ptr->Set(32768 + vx, vz, -32768 + vy, -512.f, tz);
ptr++;
ptr->Set(-32768 + vx, z, -32768 + vy, 512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, -32768 + vy, 512.f, tz);
ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
gl_RenderState.EnableTextureMatrix(false);
PortalAll.Unclock();
}
