void FMD3Model::RenderTriangles(MD3Surface * surf, MD3Vertex * vert, Matrix3x4 *modeltoworld)
{
gl_ApplyShader();
gl.Begin(GL_TRIANGLES);
for(int i=0; i<surf->numTriangles;i++)
{
for(int j=0;j<3;j++)
{
int x = surf->tris[i].VertIndex[j];
gl.TexCoord2fv(&surf->texcoords[x].s);
if (modeltoworld == NULL)
{
gl.Vertex3f(vert[x].x, vert[x].z, vert[x].y);
}
else
{
Vector v = *modeltoworld * Vector(vert[x].x, vert[x].z, vert[x].y);
gl.Vertex3fv(&v[0]);
}
}
}
gl.End();
}
//==========================================================================
//
// 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);
}
static void RenderBox(FTextureID texno, FGLTexture * gltex, float x_offset, int CM_Index)
{
FSkyBox * sb = static_cast<FSkyBox*>(gltex->tex);
int faces;
FGLTexture * tex;
gl.Rotatef(-180.0f+x_offset, glset.skyrotatevector.X, glset.skyrotatevector.Z, glset.skyrotatevector.Y);
gl.Color3f(R, G ,B);
if (sb->faces[5])
{
faces=4;
// north
tex = FGLTexture::ValidateTexture(sb->faces[0]);
tex->BindPatch(CM_Index, 0);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(0, 0);
gl.Vertex3f(128.f, 128.f, -128.f);
gl.TexCoord2f(1, 0);
gl.Vertex3f(-128.f, 128.f, -128.f);
gl.TexCoord2f(1, 1);
gl.Vertex3f(-128.f, -128.f, -128.f);
gl.TexCoord2f(0, 1);
gl.Vertex3f(128.f, -128.f, -128.f);
gl.End();
// east
tex = FGLTexture::ValidateTexture(sb->faces[1]);
tex->BindPatch(CM_Index, 0);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(0, 0);
gl.Vertex3f(-128.f, 128.f, -128.f);
gl.TexCoord2f(1, 0);
gl.Vertex3f(-128.f, 128.f, 128.f);
gl.TexCoord2f(1, 1);
gl.Vertex3f(-128.f, -128.f, 128.f);
gl.TexCoord2f(0, 1);
gl.Vertex3f(-128.f, -128.f, -128.f);
gl.End();
// south
tex = FGLTexture::ValidateTexture(sb->faces[2]);
tex->BindPatch(CM_Index, 0);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(0, 0);
gl.Vertex3f(-128.f, 128.f, 128.f);
gl.TexCoord2f(1, 0);
gl.Vertex3f(128.f, 128.f, 128.f);
gl.TexCoord2f(1, 1);
gl.Vertex3f(128.f, -128.f, 128.f);
gl.TexCoord2f(0, 1);
gl.Vertex3f(-128.f, -128.f, 128.f);
gl.End();
// west
tex = FGLTexture::ValidateTexture(sb->faces[3]);
tex->BindPatch(CM_Index, 0);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(0, 0);
gl.Vertex3f(128.f, 128.f, 128.f);
gl.TexCoord2f(1, 0);
gl.Vertex3f(128.f, 128.f, -128.f);
gl.TexCoord2f(1, 1);
gl.Vertex3f(128.f, -128.f, -128.f);
gl.TexCoord2f(0, 1);
gl.Vertex3f(128.f, -128.f, 128.f);
gl.End();
}
else
{
faces=1;
// all 4 sides
tex = FGLTexture::ValidateTexture(sb->faces[0]);
tex->BindPatch(CM_Index, 0);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(0, 0);
gl.Vertex3f(128.f, 128.f, -128.f);
gl.TexCoord2f(.25f, 0);
gl.Vertex3f(-128.f, 128.f, -128.f);
gl.TexCoord2f(.25f, 1);
gl.Vertex3f(-128.f, -128.f, -128.f);
gl.TexCoord2f(0, 1);
gl.Vertex3f(128.f, -128.f, -128.f);
gl.End();
// east
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(.25f, 0);
gl.Vertex3f(-128.f, 128.f, -128.f);
gl.TexCoord2f(.5f, 0);
gl.Vertex3f(-128.f, 128.f, 128.f);
gl.TexCoord2f(.5f, 1);
gl.Vertex3f(-128.f, -128.f, 128.f);
gl.TexCoord2f(.25f, 1);
gl.Vertex3f(-128.f, -128.f, -128.f);
gl.End();
// south
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(.5f, 0);
gl.Vertex3f(-128.f, 128.f, 128.f);
gl.TexCoord2f(.75f, 0);
gl.Vertex3f(128.f, 128.f, 128.f);
gl.TexCoord2f(.75f, 1);
gl.Vertex3f(128.f, -128.f, 128.f);
gl.TexCoord2f(.5f, 1);
gl.Vertex3f(-128.f, -128.f, 128.f);
gl.End();
// west
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(.75f, 0);
gl.Vertex3f(128.f, 128.f, 128.f);
gl.TexCoord2f(1, 0);
gl.Vertex3f(128.f, 128.f, -128.f);
gl.TexCoord2f(1, 1);
gl.Vertex3f(128.f, -128.f, -128.f);
gl.TexCoord2f(.75f, 1);
gl.Vertex3f(128.f, -128.f, 128.f);
gl.End();
}
// top
tex = FGLTexture::ValidateTexture(sb->faces[faces]);
tex->BindPatch(CM_Index, 0);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
if (!sb->fliptop)
{
gl.TexCoord2f(0, 0);
gl.Vertex3f(128.f, 128.f, -128.f);
gl.TexCoord2f(1, 0);
gl.Vertex3f(-128.f, 128.f, -128.f);
gl.TexCoord2f(1, 1);
gl.Vertex3f(-128.f, 128.f, 128.f);
gl.TexCoord2f(0, 1);
gl.Vertex3f(128.f, 128.f, 128.f);
}
else
{
gl.TexCoord2f(0, 0);
gl.Vertex3f(128.f, 128.f, 128.f);
gl.TexCoord2f(1, 0);
gl.Vertex3f(-128.f, 128.f, 128.f);
gl.TexCoord2f(1, 1);
gl.Vertex3f(-128.f, 128.f, -128.f);
gl.TexCoord2f(0, 1);
gl.Vertex3f(128.f, 128.f, -128.f);
}
gl.End();
// bottom
tex = FGLTexture::ValidateTexture(sb->faces[faces+1]);
tex->BindPatch(CM_Index, 0);
gl_ApplyShader();
gl.Begin(GL_TRIANGLE_FAN);
gl.TexCoord2f(0, 0);
gl.Vertex3f(128.f, -128.f, -128.f);
gl.TexCoord2f(1, 0);
gl.Vertex3f(-128.f, -128.f, -128.f);
gl.TexCoord2f(1, 1);
gl.Vertex3f(-128.f, -128.f, 128.f);
gl.TexCoord2f(0, 1);
gl.Vertex3f(128.f, -128.f, 128.f);
gl.End();
}
static void RenderSkyHemisphere(int hemi)
{
int r, c;
if (hemi & SKYHEMI_LOWER)
{
yflip = true;
}
else
{
yflip = false;
}
// The top row (row 0) is the one that's faded out.
// There must be at least 4 columns. The preferable number
// is 4n, where n is 1, 2, 3... There should be at least
// two rows because the first one is always faded.
rows = 4;
if (hemi & SKYHEMI_JUST_CAP)
{
return;
}
gl_DisableShader();
// Draw the cap as one solid color polygon
if (!foglayer)
{
columns = 4 * (gl_sky_detail > 0 ? gl_sky_detail : 1);
foglayer=true;
gl_EnableTexture(false);
if (!secondlayer)
{
gl.Color3f(R, G ,B);
gl.Begin(GL_TRIANGLE_FAN);
for(c = 0; c < columns; c++)
{
SkyVertex(1, c);
}
gl.End();
}
gl_EnableTexture(true);
foglayer=false;
gl_ApplyShader();
}
else
{
columns=4; // no need to do more!
gl.Begin(GL_TRIANGLE_FAN);
for(c = 0; c < columns; c++)
{
SkyVertex(0, c);
}
gl.End();
}
// The total number of triangles per hemisphere can be calculated
// as follows: rows * columns * 2 + 2 (for the top cap).
for(r = 0; r < rows; r++)
{
if (yflip)
{
gl.Begin(GL_TRIANGLE_STRIP);
SkyVertex(r + 1, 0);
SkyVertex(r, 0);
for(c = 1; c <= columns; c++)
{
SkyVertex(r + 1, c);
SkyVertex(r, c);
}
gl.End();
}
else
{
gl.Begin(GL_TRIANGLE_STRIP);
SkyVertex(r, 0);
SkyVertex(r + 1, 0);
for(c = 1; c <= columns; c++)
{
SkyVertex(r, c);
SkyVertex(r + 1, c);
}
gl.End();
}
}
}