public float[][] verts; //[4][VERTEXSIZE]; // variable sized (xyz s1t1 s2t2)
public void Clear()
{
this.next = null;
this.chain = null;
this.numverts = 0;
this.flags = 0;
this.verts = null;
}
public float[][] verts; //[4][VERTEXSIZE]; // variable sized (xyz s1t1 s2t2)
public void Clear()
{
next = null;
chain = null;
numverts = 0;
flags = 0;
verts = null;
}
private static void DrawGLPoly(glpoly_t p)
{
GL.Begin(PrimitiveType.Polygon);
for (int i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
GL.TexCoord2(v[3], v[4]);
GL.Vertex3(v);
}
GL.End();
}
private static void DrawGLWaterPoly(glpoly_t p)
{
DisableMultitexture();
float[] nv = new float[3];
GL.Begin(PrimitiveType.TriangleFan);
for (int i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
GL.TexCoord2(v[3], v[4]);
nv[0] = (float)(v[0] + 8 * Math.Sin(v[1] * 0.05 + host.RealTime) * Math.Sin(v[2] * 0.05 + host.RealTime));
nv[1] = (float)(v[1] + 8 * Math.Sin(v[0] * 0.05 + host.RealTime) * Math.Sin(v[2] * 0.05 + host.RealTime));
nv[2] = v[2];
GL.Vertex3(nv);
}
GL.End();
}
/// <summary>
/// EmitSkyPolys
/// </summary>
static void EmitSkyPolys(msurface_t fa)
{
for (glpoly_t p = fa.polys; p != null; p = p.next)
{
GL.Begin(BeginMode.Polygon);
for (int i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
Vector3 dir = new Vector3(v[0] - Render.Origin.X, v[1] - Render.Origin.Y, v[2] - Render.Origin.Z);
dir.Z *= 3; // flatten the sphere
dir.Normalize();
dir *= 6 * 63;
float s = (_SpeedScale + dir.X) / 128.0f;
float t = (_SpeedScale + dir.Y) / 128.0f;
GL.TexCoord2(s, t);
GL.Vertex3(v);
}
GL.End();
}
}
/// <summary>
/// EmitWaterPolys
/// Does a water warp on the pre-fragmented glpoly_t chain
/// </summary>
static void EmitWaterPolys(msurface_t fa)
{
for (glpoly_t p = fa.polys; p != null; p = p.next)
{
GL.Begin(BeginMode.Polygon);
for (int i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
float os = v[3];
float ot = v[4];
float s = os + _TurbSin[(int)((ot * 0.125 + Host.RealTime) * TURBSCALE) & 255];
s *= (1.0f / 64);
float t = ot + _TurbSin[(int)((os * 0.125 + Host.RealTime) * TURBSCALE) & 255];
t *= (1.0f / 64);
GL.TexCoord2(s, t);
GL.Vertex3(v);
}
GL.End();
}
}
private static void DrawGLWaterPolyLightmap(glpoly_t p)
{
DisableMultitexture();
float[] nv = new float[3];
GL.Begin(BeginMode.TriangleFan);
for (int i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
GL.TexCoord2(v[5], v[6]);
nv[0] = (float)(v[0] + 8 * Math.Sin(v[1] * 0.05 + Host.RealTime) * Math.Sin(v[2] * 0.05 + Host.RealTime));
nv[1] = (float)(v[1] + 8 * Math.Sin(v[0] * 0.05 + Host.RealTime) * Math.Sin(v[2] * 0.05 + Host.RealTime));
nv[2] = v[2];
GL.Vertex3(nv);
}
GL.End();
}
private static void DrawGLPoly(glpoly_t p)
{
GL.Begin(BeginMode.Polygon);
for (int i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
GL.TexCoord2(v[3], v[4]);
GL.Vertex3(v);
}
GL.End();
}
/// <summary>
/// BuildSurfaceDisplayList
/// </summary>
static void BuildSurfaceDisplayList(msurface_t fa)
{
// reconstruct the polygon
medge_t[] pedges = _CurrentModel.edges;
int lnumverts = fa.numedges;
//
// draw texture
//
glpoly_t poly = new glpoly_t();
poly.AllocVerts(lnumverts);
poly.next = fa.polys;
poly.flags = fa.flags;
fa.polys = poly;
ushort[] r_pedge_v;
Vector3 vec;
for (int i = 0; i < lnumverts; i++)
{
int lindex = _CurrentModel.surfedges[fa.firstedge + i];
if (lindex > 0)
{
r_pedge_v = pedges[lindex].v;
vec = _CurrentVertBase[r_pedge_v[0]].position;
}
else
{
r_pedge_v = pedges[-lindex].v;
vec = _CurrentVertBase[r_pedge_v[1]].position;
}
float s = Mathlib.DotProduct(ref vec, ref fa.texinfo.vecs[0]) + fa.texinfo.vecs[0].W;
s /= fa.texinfo.texture.width;
float t = Mathlib.DotProduct(ref vec, ref fa.texinfo.vecs[1]) + fa.texinfo.vecs[1].W;
t /= fa.texinfo.texture.height;
poly.verts[i][0] = vec.X;
poly.verts[i][1] = vec.Y;
poly.verts[i][2] = vec.Z;
poly.verts[i][3] = s;
poly.verts[i][4] = t;
//
// lightmap texture coordinates
//
s = Mathlib.DotProduct(ref vec, ref fa.texinfo.vecs[0]) + fa.texinfo.vecs[0].W;
s -= fa.texturemins[0];
s += fa.light_s * 16;
s += 8;
s /= BLOCK_WIDTH * 16;
t = Mathlib.DotProduct(ref vec, ref fa.texinfo.vecs[1]) + fa.texinfo.vecs[1].W;
t -= fa.texturemins[1];
t += fa.light_t * 16;
t += 8;
t /= BLOCK_HEIGHT * 16;
poly.verts[i][5] = s;
poly.verts[i][6] = t;
}
//
// remove co-linear points - Ed
//
if (_glKeepTJunctions.Value == 0 && (fa.flags & Surf.SURF_UNDERWATER) == 0)
{
for (int i = 0; i < lnumverts; ++i)
{
if (IsCollinear(poly.verts[(i + lnumverts - 1) % lnumverts],
poly.verts[i],
poly.verts[(i + 1) % lnumverts]))
{
int j;
for (j = i + 1; j < lnumverts; ++j)
{
//int k;
for (int k = 0; k < Mod.VERTEXSIZE; ++k)
poly.verts[j - 1][k] = poly.verts[j][k];
}
--lnumverts;
++_ColinElim;
// retry next vertex next time, which is now current vertex
--i;
}
}
}
poly.numverts = lnumverts;
}
/// <summary>
/// R_BlendLightmaps
/// </summary>
private static void BlendLightmaps()
{
if (_FullBright.Value != 0)
{
return;
}
if (_glTexSort.Value == 0)
{
return;
}
GL.DepthMask(false); // don't bother writing Z
if (Drawer.LightMapFormat == PixelFormat.Luminance)
{
GL.BlendFunc(BlendingFactor.Zero, BlendingFactor.OneMinusSrcColor);
}
//else if (gl_lightmap_format == GL_INTENSITY)
//{
// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
// glColor4f(0, 0, 0, 1);
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//}
if (_LightMap.Value == 0)
{
GL.Enable(EnableCap.Blend);
}
for (int i = 0; i < MAX_LIGHTMAPS; i++)
{
glpoly_t p = _LightMapPolys[i];
if (p == null)
{
continue;
}
Drawer.Bind(_LightMapTextures + i);
if (_LightMapModified[i])
{
CommitLightmap(i);
}
for ( ; p != null; p = p.chain)
{
if ((p.flags & Surf.SURF_UNDERWATER) != 0)
{
DrawGLWaterPolyLightmap(p);
}
else
{
GL.Begin(PrimitiveType.Polygon);
for (int j = 0; j < p.numverts; j++)
{
float[] v = p.verts[j];
GL.TexCoord2(v[5], v[6]);
GL.Vertex3(v);
}
GL.End();
}
}
}
GL.Disable(EnableCap.Blend);
if (Drawer.LightMapFormat == PixelFormat.Luminance)
{
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
}
//else if (gl_lightmap_format == GL_INTENSITY)
//{
// glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
// glColor4f(1, 1, 1, 1);
//}
GL.DepthMask(true); // back to normal Z buffering
}
/// <summary>
/// BuildSurfaceDisplayList
/// </summary>
private static void BuildSurfaceDisplayList(msurface_t fa)
{
// reconstruct the polygon
medge_t[] pedges = _CurrentModel.edges;
int lnumverts = fa.numedges;
//
// draw texture
//
glpoly_t poly = new glpoly_t();
poly.AllocVerts(lnumverts);
poly.next = fa.polys;
poly.flags = fa.flags;
fa.polys = poly;
ushort[] r_pedge_v;
Vector3 vec;
for (int i = 0; i < lnumverts; i++)
{
int lindex = _CurrentModel.surfedges[fa.firstedge + i];
if (lindex > 0)
{
r_pedge_v = pedges[lindex].v;
vec = _CurrentVertBase[r_pedge_v[0]].position;
}
else
{
r_pedge_v = pedges[-lindex].v;
vec = _CurrentVertBase[r_pedge_v[1]].position;
}
float s = mathlib.DotProduct(ref vec, ref fa.texinfo.vecs[0]) + fa.texinfo.vecs[0].W;
s /= fa.texinfo.texture.width;
float t = mathlib.DotProduct(ref vec, ref fa.texinfo.vecs[1]) + fa.texinfo.vecs[1].W;
t /= fa.texinfo.texture.height;
poly.verts[i][0] = vec.X;
poly.verts[i][1] = vec.Y;
poly.verts[i][2] = vec.Z;
poly.verts[i][3] = s;
poly.verts[i][4] = t;
//
// lightmap texture coordinates
//
s = mathlib.DotProduct(ref vec, ref fa.texinfo.vecs[0]) + fa.texinfo.vecs[0].W;
s -= fa.texturemins[0];
s += fa.light_s * 16;
s += 8;
s /= BLOCK_WIDTH * 16;
t = mathlib.DotProduct(ref vec, ref fa.texinfo.vecs[1]) + fa.texinfo.vecs[1].W;
t -= fa.texturemins[1];
t += fa.light_t * 16;
t += 8;
t /= BLOCK_HEIGHT * 16;
poly.verts[i][5] = s;
poly.verts[i][6] = t;
}
//
// remove co-linear points - Ed
//
if (_glKeepTJunctions.Value == 0 && (fa.flags & Surf.SURF_UNDERWATER) == 0)
{
for (int i = 0; i < lnumverts; ++i)
{
if (IsCollinear(poly.verts[(i + lnumverts - 1) % lnumverts],
poly.verts[i],
poly.verts[(i + 1) % lnumverts]))
{
int j;
for (j = i + 1; j < lnumverts; ++j)
{
//int k;
for (int k = 0; k < Mod.VERTEXSIZE; ++k)
{
poly.verts[j - 1][k] = poly.verts[j][k];
}
}
--lnumverts;
++_ColinElim;
// retry next vertex next time, which is now current vertex
--i;
}
}
}
poly.numverts = lnumverts;
}
/// <summary>
/// R_DrawSequentialPoly
/// Systems that have fast state and texture changes can
/// just do everything as it passes with no need to sort
/// </summary>
private static void DrawSequentialPoly(msurface_t s)
{
//
// normal lightmaped poly
//
if ((s.flags & (Surf.SURF_DRAWSKY | Surf.SURF_DRAWTURB | Surf.SURF_UNDERWATER)) == 0)
{
RenderDynamicLightmaps(s);
glpoly_t p = s.polys;
texture_t t = TextureAnimation(s.texinfo.texture);
if (vid.glMTexable)
{
// Binds world to texture env 0
Drawer.SelectTexture(MTexTarget.TEXTURE0_SGIS);
Drawer.Bind(t.gl_texturenum);
GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)TextureEnvMode.Replace);
// Binds lightmap to texenv 1
EnableMultitexture(); // Same as SelectTexture (TEXTURE1)
Drawer.Bind(_LightMapTextures + s.lightmaptexturenum);
int i = s.lightmaptexturenum;
if (_LightMapModified[i])
{
CommitLightmap(i);
}
GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)TextureEnvMode.Blend);
GL.Begin(PrimitiveType.Polygon);
for (i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
GL.MultiTexCoord2(TextureUnit.Texture0, v[3], v[4]);
GL.MultiTexCoord2(TextureUnit.Texture1, v[5], v[6]);
GL.Vertex3(v);
}
GL.End();
return;
}
else
{
Drawer.Bind(t.gl_texturenum);
GL.Begin(PrimitiveType.Polygon);
for (int i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
GL.TexCoord2(v[3], v[4]);
GL.Vertex3(v);
}
GL.End();
Drawer.Bind(_LightMapTextures + s.lightmaptexturenum);
GL.Enable(EnableCap.Blend);
GL.Begin(PrimitiveType.Polygon);
for (int i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
GL.TexCoord2(v[5], v[6]);
GL.Vertex3(v);
}
GL.End();
GL.Disable(EnableCap.Blend);
}
return;
}
//
// subdivided water surface warp
//
if ((s.flags & Surf.SURF_DRAWTURB) != 0)
{
DisableMultitexture();
Drawer.Bind(s.texinfo.texture.gl_texturenum);
EmitWaterPolys(s);
return;
}
//
// subdivided sky warp
//
if ((s.flags & Surf.SURF_DRAWSKY) != 0)
{
DisableMultitexture();
Drawer.Bind(_SolidSkyTexture);
_SpeedScale = (float)host.RealTime * 8;
_SpeedScale -= (int)_SpeedScale & ~127;
EmitSkyPolys(s);
GL.Enable(EnableCap.Blend);
Drawer.Bind(_AlphaSkyTexture);
_SpeedScale = (float)host.RealTime * 16;
_SpeedScale -= (int)_SpeedScale & ~127;
EmitSkyPolys(s);
GL.Disable(EnableCap.Blend);
return;
}
//
// underwater warped with lightmap
//
RenderDynamicLightmaps(s);
if (vid.glMTexable)
{
texture_t t = TextureAnimation(s.texinfo.texture);
Drawer.SelectTexture(MTexTarget.TEXTURE0_SGIS);
Drawer.Bind(t.gl_texturenum);
GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)TextureEnvMode.Replace);
EnableMultitexture();
Drawer.Bind(_LightMapTextures + s.lightmaptexturenum);
int i = s.lightmaptexturenum;
if (_LightMapModified[i])
{
CommitLightmap(i);
}
GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)TextureEnvMode.Blend);
GL.Begin(PrimitiveType.TriangleFan);
glpoly_t p = s.polys;
float[] nv = new float[3];
for (i = 0; i < p.numverts; i++)
{
float[] v = p.verts[i];
GL.MultiTexCoord2(TextureUnit.Texture0, v[3], v[4]);
GL.MultiTexCoord2(TextureUnit.Texture1, v[5], v[6]);
nv[0] = (float)(v[0] + 8 * Math.Sin(v[1] * 0.05 + host.RealTime) * Math.Sin(v[2] * 0.05 + host.RealTime));
nv[1] = (float)(v[1] + 8 * Math.Sin(v[0] * 0.05 + host.RealTime) * Math.Sin(v[2] * 0.05 + host.RealTime));
nv[2] = v[2];
GL.Vertex3(nv);
}
GL.End();
}
else
{
glpoly_t p = s.polys;
texture_t t = TextureAnimation(s.texinfo.texture);
Drawer.Bind(t.gl_texturenum);
DrawGLWaterPoly(p);
Drawer.Bind(_LightMapTextures + s.lightmaptexturenum);
GL.Enable(EnableCap.Blend);
DrawGLWaterPolyLightmap(p);
GL.Disable(EnableCap.Blend);
}
}
public void Clear()
{
this.next = null;
this.chain = null;
this.numverts = 0;
this.flags = 0;
this.verts = null;
}
/// <summary>
/// SubdividePolygon
/// </summary>
static void SubdividePolygon(int numverts, Vector3[] verts)
{
if (numverts > 60)
Sys.Error("numverts = {0}", numverts);
Vector3 mins, maxs;
BoundPoly(numverts, verts, out mins, out maxs);
float[] dist = new float[64];
for (int i = 0; i < 3; i++)
{
double m = (Mathlib.Comp(ref mins, i) + Mathlib.Comp(ref maxs, i)) * 0.5;
m = Mod.SubdivideSize * Math.Floor(m / Mod.SubdivideSize + 0.5);
if (Mathlib.Comp(ref maxs, i) - m < 8)
continue;
if (m - Mathlib.Comp(ref mins, i) < 8)
continue;
for (int j = 0; j < numverts; j++)
dist[j] = (float)(Mathlib.Comp(ref verts[j], i) - m);
Vector3[] front = new Vector3[64];
Vector3[] back = new Vector3[64];
// cut it
// wrap cases
dist[numverts] = dist[0];
verts[numverts] = verts[0]; // Uze: source array must be at least numverts + 1 elements long
int f = 0, b = 0;
for (int j = 0; j < numverts; j++)
{
if (dist[j] >= 0)
{
front[f] = verts[j];
f++;
}
if (dist[j] <= 0)
{
back[b] = verts[j];
b++;
}
if (dist[j] == 0 || dist[j + 1] == 0)
continue;
if ((dist[j] > 0) != (dist[j + 1] > 0))
{
// clip point
float frac = dist[j] / (dist[j] - dist[j + 1]);
front[f] = back[b] = verts[j] + (verts[j + 1] - verts[j]) * frac;
f++;
b++;
}
}
SubdividePolygon(f, front);
SubdividePolygon(b, back);
return;
}
glpoly_t poly = new glpoly_t();
poly.next = _WarpFace.polys;
_WarpFace.polys = poly;
poly.AllocVerts(numverts);
for (int i = 0; i < numverts; i++)
{
Common.Copy(ref verts[i], poly.verts[i]);
float s = Vector3.Dot(verts[i], _WarpFace.texinfo.vecs[0].Xyz);
float t = Vector3.Dot(verts[i], _WarpFace.texinfo.vecs[1].Xyz);
poly.verts[i][3] = s;
poly.verts[i][4] = t;
}
}
/// <summary>
/// SubdividePolygon
/// </summary>
static void SubdividePolygon(int numverts, Vector3[] verts)
{
if (numverts > 60)
{
Sys.Error("numverts = {0}", numverts);
}
Vector3 mins, maxs;
BoundPoly(numverts, verts, out mins, out maxs);
float[] dist = new float[64];
for (int i = 0; i < 3; i++)
{
double m = (Mathlib.Comp(ref mins, i) + Mathlib.Comp(ref maxs, i)) * 0.5;
m = Mod.SubdivideSize * Math.Floor(m / Mod.SubdivideSize + 0.5);
if (Mathlib.Comp(ref maxs, i) - m < 8)
{
continue;
}
if (m - Mathlib.Comp(ref mins, i) < 8)
{
continue;
}
for (int j = 0; j < numverts; j++)
{
dist[j] = (float)(Mathlib.Comp(ref verts[j], i) - m);
}
Vector3[] front = new Vector3[64];
Vector3[] back = new Vector3[64];
// cut it
// wrap cases
dist[numverts] = dist[0];
verts[numverts] = verts[0]; // Uze: source array must be at least numverts + 1 elements long
int f = 0, b = 0;
for (int j = 0; j < numverts; j++)
{
if (dist[j] >= 0)
{
front[f] = verts[j];
f++;
}
if (dist[j] <= 0)
{
back[b] = verts[j];
b++;
}
if (dist[j] == 0 || dist[j + 1] == 0)
{
continue;
}
if ((dist[j] > 0) != (dist[j + 1] > 0))
{
// clip point
float frac = dist[j] / (dist[j] - dist[j + 1]);
front[f] = back[b] = verts[j] + (verts[j + 1] - verts[j]) * frac;
f++;
b++;
}
}
SubdividePolygon(f, front);
SubdividePolygon(b, back);
return;
}
glpoly_t poly = new glpoly_t();
poly.next = _WarpFace.polys;
_WarpFace.polys = poly;
poly.AllocVerts(numverts);
for (int i = 0; i < numverts; i++)
{
Common.Copy(ref verts[i], poly.verts[i]);
float s = Vector3.Dot(verts[i], _WarpFace.texinfo.vecs[0].Xyz);
float t = Vector3.Dot(verts[i], _WarpFace.texinfo.vecs[1].Xyz);
poly.verts[i][3] = s;
poly.verts[i][4] = t;
}
}