public void Apply()
{
//Console.WriteLine("rendererpass");
int i;
//Console.WriteLine("rendererpass.apply " + numstages + " stages");
for (i = numstages; i < maxtexels; i++)
{
g.ActiveTexture(i);
g.DisableTexture2d();
}
i = 0;
foreach (RendererTextureStage texturestage in texturestages)
{
g.ActiveTexture(i);
g.EnableTexture2d();
texturestage.Apply();
i++;
}
}
// what we need to do is to render the splatted texture in ortho mode with lighting off
// or normals off (to be tested)
// then to export the generated bitmap
// viewport should be set to heightmapwidth x heightmapheight
public void Export(string filepath)
{
Terrain terrain = Terrain.GetInstance();
int picturewidth = terrain.MapWidth * Terrain.SquareSize;
int pictureheight = terrain.MapHeight * Terrain.SquareSize;
LogFile.GetInstance().WriteLine("Export to " + filepath + " picturewidth " + picturewidth + " pictureheight: " + pictureheight);
//int windowwidth = RendererSdl.GetInstance().WindowWidth;
//int windowheight = RendererSdl.GetInstance().WindowHeight;
int windowwidth = 256;
int windowheight = 256;
Gl.glViewport(0, 0, windowwidth, windowheight);
byte[] buffer = new byte[windowwidth * windowheight * 4];
//System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap( picturewidth, pictureheight );
//byte[] imagedata = new byte[picturewidth * pictureheight * 4];
Image image = new Image(picturewidth, pictureheight);
List<RendererPass> rendererpasses = new List<RendererPass>();
bool multipass = true; // force multipass for now for simplicity
int maxtexels = RendererSdl.GetInstance().MaxTexelUnits;
if (multipass)
{
for (int i = 0; i < terrain.texturestages.Count; i++)
{
MapTextureStage maptexturestage = terrain.texturestages[i];
int numtexturestagesrequired = maptexturestage.NumTextureStagesRequired;
if (numtexturestagesrequired > 0) // exclude Nops
{
RendererPass rendererpass = new RendererPass(maxtexels);
for (int j = 0; j < maptexturestage.NumTextureStagesRequired; j++)
{
rendererpass.AddStage(new RendererTextureStage(maptexturestage, j, true, picturewidth, pictureheight));
}
rendererpasses.Add(rendererpass);
}
}
}
GraphicsHelperGl g = new GraphicsHelperGl();
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glOrtho(0, windowwidth, windowheight, 0, -1, 1);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glDisable(Gl.GL_CULL_FACE);
Gl.glDisable(Gl.GL_LIGHTING);
g.EnableBlendSrcAlpha();
Gl.glDepthFunc( Gl.GL_LEQUAL );
for (int chunkx = 0; chunkx < Math.Ceiling((double)picturewidth / windowwidth); chunkx++)
{
for (int chunky = 0; chunky < Math.Ceiling((double)pictureheight / windowheight); chunky++)
{
Console.WriteLine("chunkx " + chunkx + " chunky " + chunky);
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT); // Clear The Screen And Depth Buffer
foreach (RendererPass rendererpass in rendererpasses)
{
rendererpass.Apply();
Gl.glBegin(Gl.GL_QUADS);
double ul = (chunkx * windowwidth);
double ur = (chunkx * windowwidth + windowwidth);
double vt = (chunky * windowheight);
double vb = (chunky * windowheight + windowheight);
Gl.glTexCoord2d( ul,vt );
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB,ul, vt);
Gl.glVertex2i(0, 0);
Gl.glTexCoord2d( ul,vb );
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB,ul, vb);
Gl.glVertex2i(0, windowheight);
Gl.glTexCoord2d( ur,vb );
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB,ur, vb);
Gl.glVertex2i(windowwidth, windowheight);
Gl.glTexCoord2d( ur,vt );
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB,ur, vt);
Gl.glVertex2i(windowwidth, 0);
Gl.glEnd();
}
IntPtr ptr = Marshal.AllocHGlobal(windowwidth * windowheight * 4);
Gl.glReadPixels(0, 0, windowwidth, windowheight, Gl.GL_RGBA, Gl.GL_UNSIGNED_BYTE, ptr);
Marshal.Copy(ptr, buffer, 0, windowwidth * windowheight * 4);
Marshal.FreeHGlobal(ptr);
for (int x = 0; x < windowwidth; x++)
{
for (int y = 0; y < windowheight; y++)
{
if ((chunky * windowheight + y < pictureheight) &&
(chunkx * windowwidth + x < picturewidth))
{
int pixeloffset = (windowheight - y - 1) * windowwidth * 4 + x * 4;
//bitmap.SetPixel(x + chunkx * windowwidth, y + chunky * windowheight, System.Drawing.Color.FromArgb(buffer[pixeloffset + 0],
//buffer[pixeloffset + 1], buffer[pixeloffset + 2]));
image.SetPixel(x + chunkx * windowwidth, y + chunky * windowheight,
buffer[pixeloffset + 0],
buffer[pixeloffset + 1],
buffer[pixeloffset + 2],
255
);
}
}
}
}
}
if (File.Exists(filepath))
{
File.Delete(filepath);
}
image.Save(filepath);
//DevIL.DevIL.SaveBitmap( filepath, bitmap);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glEnable(Gl.GL_LIGHTING);
g.ActiveTexture(1);
g.DisableTexture2d();
g.SetTextureScale(1);
g.ActiveTexture(0);
g.SetTextureScale(1);
Gl.glEnable(Gl.GL_CULL_FACE);
Gl.glEnable(Gl.GL_LIGHTING);
Gl.glDisable(Gl.GL_BLEND);
g.EnableModulate();
Gl.glViewport(0, 0, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
g.CheckError();
MainUI.GetInstance().uiwindow.InfoMessage("Exported blended terrain texture to " + filepath);
}
// renders to 0,0,0 ; size will be (mapwidth + 1) * xscale by (mapheight + 1) * yscale
public void Render(Vector3 camerapos)
{
//ExportAsSingleTexture.GetInstance().Export("");
Gl.glPushMatrix();
FrustrumCulling culling = FrustrumCulling.GetInstance();
//IGraphicsHelper g = GraphicsHelperFactory.GetInstance();
GraphicsHelperGl g = new GraphicsHelperGl();
int iSectorsDrawn = 0;
int iChunkDrawsSkippedNoTextureSection = 0;
int numxchunks = width / chunksize;
int numychunks = height / chunksize;
double chunkboundingradius = chunksize * xscale * 1.414 / 2;
//Console.WriteLine("chunkboundingradius: " + chunkboundingradius);
g.SetMaterialColor(new Color(1.0, 1.0, 1.0));
Gl.glDepthFunc(Gl.GL_LEQUAL);
g.EnableBlendSrcAlpha();
foreach (RendererPass rendererpass in rendererpasses)
{
rendererpass.Apply();
for (int chunkx = 0; chunkx < numxchunks - 1; chunkx++)
{
for (int chunky = 0; chunky < numychunks - 1; chunky++)
{
if (chunkusestexturestage[rendererpass.texturestages[0].maptexturestage][chunkx, chunky])
{
//if (iSectorsDrawn == 0)
//{
int chunkmapposx = chunkx * chunksize;
int chunkmapposy = chunky * chunksize;
int chunkdisplayposx = chunkmapposx * xscale;
int chunkdisplayposy = chunkmapposy * yscale;
Vector3 chunkmappos = new Vector3(chunkmapposx, chunkmapposy, heightmap[chunkmapposx, chunkmapposy]);
Vector3 chunkdisplaypos = new Vector3(chunkdisplayposx, chunkdisplayposy, heightmap[chunkmapposx, chunkmapposy]);
Vector3 chunkcentredisplaypos = chunkdisplaypos +
new Vector3(chunksize * xscale / 2, chunksize * yscale / 2, 0);
if (culling.IsInsideFrustum(chunkcentredisplaypos, chunkboundingradius))
{
iSectorsDrawn++;
// check how far away sector is
// if nearby we render it in detail
// otherwise just render a few points from it
double distancesquared = Vector3.DistanceSquared(chunkcentredisplaypos, camerapos);
//if ( distancesquared > detaildistance * detaildistance)
int stepsize = 16;
if (distancesquared < loddistances[0] * loddistances[0])
{
stepsize = 1;
}
else if (distancesquared < loddistances[1] * loddistances[2])
{
stepsize = 2;
}
else if (distancesquared < loddistances[3] * loddistances[3])
{
stepsize = 4;
}
else if (distancesquared < loddistances[4] * loddistances[4])
{
stepsize = 8;
}
else if (distancesquared < loddistances[5] * loddistances[5])
{
stepsize = 16;
}
RenderChunk(chunkx, chunky, stepsize);
}
}
else
{
iChunkDrawsSkippedNoTextureSection++;
}
// System.Environment.Exit(1);
}
}
//Gl.glTranslated(0, 0, 500);
}
//System.Environment.Exit(0);
//Console.WriteLine("chunk renders: " + iSectorsDrawn + " maptextureculls: " + iChunkDrawsSkippedNoTextureSection);
for (int i = maxtexels - 1; i >= 0; i--)
{
g.ActiveTexture(i);
g.SetTextureScale(1);
g.DisableTexture2d();
}
Gl.glDepthFunc(Gl.GL_LESS);
Gl.glDisable(Gl.GL_BLEND);
g.EnableModulate();
Gl.glPopMatrix();
}
// what we need to do is to render the splatted texture in ortho mode with lighting off
// or normals off (to be tested)
// then to export the generated bitmap
// viewport should be set to heightmapwidth x heightmapheight
public void Export(string filepath)
{
Terrain terrain = Terrain.GetInstance();
int picturewidth = terrain.MapWidth * Terrain.SquareSize;
int pictureheight = terrain.MapHeight * Terrain.SquareSize;
LogFile.GetInstance().WriteLine("Export to " + filepath + " picturewidth " + picturewidth + " pictureheight: " + pictureheight);
//int windowwidth = RendererSdl.GetInstance().WindowWidth;
//int windowheight = RendererSdl.GetInstance().WindowHeight;
int windowwidth = 256;
int windowheight = 256;
Gl.glViewport(0, 0, windowwidth, windowheight);
byte[] buffer = new byte[windowwidth * windowheight * 4];
//System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap( picturewidth, pictureheight );
//byte[] imagedata = new byte[picturewidth * pictureheight * 4];
Image image = new Image(picturewidth, pictureheight);
List <RendererPass> rendererpasses = new List <RendererPass>();
bool multipass = true; // force multipass for now for simplicity
int maxtexels = RendererSdl.GetInstance().MaxTexelUnits;
if (multipass)
{
for (int i = 0; i < terrain.texturestages.Count; i++)
{
MapTextureStage maptexturestage = terrain.texturestages[i];
int numtexturestagesrequired = maptexturestage.NumTextureStagesRequired;
if (numtexturestagesrequired > 0) // exclude Nops
{
RendererPass rendererpass = new RendererPass(maxtexels);
for (int j = 0; j < maptexturestage.NumTextureStagesRequired; j++)
{
rendererpass.AddStage(new RendererTextureStage(maptexturestage, j, true, picturewidth, pictureheight));
}
rendererpasses.Add(rendererpass);
}
}
}
GraphicsHelperGl g = new GraphicsHelperGl();
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glOrtho(0, windowwidth, windowheight, 0, -1, 1);
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glPushMatrix();
Gl.glLoadIdentity();
Gl.glDisable(Gl.GL_CULL_FACE);
Gl.glDisable(Gl.GL_LIGHTING);
g.EnableBlendSrcAlpha();
Gl.glDepthFunc(Gl.GL_LEQUAL);
for (int chunkx = 0; chunkx < Math.Ceiling((double)picturewidth / windowwidth); chunkx++)
{
for (int chunky = 0; chunky < Math.Ceiling((double)pictureheight / windowheight); chunky++)
{
Console.WriteLine("chunkx " + chunkx + " chunky " + chunky);
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT); // Clear The Screen And Depth Buffer
foreach (RendererPass rendererpass in rendererpasses)
{
rendererpass.Apply();
Gl.glBegin(Gl.GL_QUADS);
double ul = (chunkx * windowwidth);
double ur = (chunkx * windowwidth + windowwidth);
double vt = (chunky * windowheight);
double vb = (chunky * windowheight + windowheight);
Gl.glTexCoord2d(ul, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vt);
Gl.glVertex2i(0, 0);
Gl.glTexCoord2d(ul, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vb);
Gl.glVertex2i(0, windowheight);
Gl.glTexCoord2d(ur, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vb);
Gl.glVertex2i(windowwidth, windowheight);
Gl.glTexCoord2d(ur, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vt);
Gl.glVertex2i(windowwidth, 0);
Gl.glEnd();
}
IntPtr ptr = Marshal.AllocHGlobal(windowwidth * windowheight * 4);
Gl.glReadPixels(0, 0, windowwidth, windowheight, Gl.GL_RGBA, Gl.GL_UNSIGNED_BYTE, ptr);
Marshal.Copy(ptr, buffer, 0, windowwidth * windowheight * 4);
Marshal.FreeHGlobal(ptr);
for (int x = 0; x < windowwidth; x++)
{
for (int y = 0; y < windowheight; y++)
{
if ((chunky * windowheight + y < pictureheight) &&
(chunkx * windowwidth + x < picturewidth))
{
int pixeloffset = (windowheight - y - 1) * windowwidth * 4 + x * 4;
//bitmap.SetPixel(x + chunkx * windowwidth, y + chunky * windowheight, System.Drawing.Color.FromArgb(buffer[pixeloffset + 0],
//buffer[pixeloffset + 1], buffer[pixeloffset + 2]));
image.SetPixel(x + chunkx * windowwidth, y + chunky * windowheight,
buffer[pixeloffset + 0],
buffer[pixeloffset + 1],
buffer[pixeloffset + 2],
255
);
}
}
}
}
}
if (File.Exists(filepath))
{
File.Delete(filepath);
}
image.Save(filepath);
//DevIL.DevIL.SaveBitmap( filepath, bitmap);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_MODELVIEW);
Gl.glEnable(Gl.GL_LIGHTING);
g.ActiveTexture(1);
g.DisableTexture2d();
g.SetTextureScale(1);
g.ActiveTexture(0);
g.SetTextureScale(1);
Gl.glEnable(Gl.GL_CULL_FACE);
Gl.glEnable(Gl.GL_LIGHTING);
Gl.glDisable(Gl.GL_BLEND);
g.EnableModulate();
Gl.glViewport(0, 0, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
g.CheckError();
MainUI.GetInstance().uiwindow.InfoMessage("Exported blended terrain texture to " + filepath);
}
// note to self: move this to subscriber?
void DrawMinimap()
{
Terrain terrain = Terrain.GetInstance();
if (DateTime.Now.Subtract(LastMinimapUpdate).TotalMilliseconds > 1000)
//if( true )
{
List <RendererPass> rendererpasses = new List <RendererPass>();
bool multipass = true; // force multipass for now for simplicity
int maxtexels = RendererSdl.GetInstance().MaxTexelUnits;
if (multipass)
{
for (int i = 0; i < terrain.texturestages.Count; i++)
{
MapTextureStage maptexturestage = terrain.texturestages[i];
int numtexturestagesrequired = maptexturestage.NumTextureStagesRequired;
if (numtexturestagesrequired > 0) // exclude Nops
{
RendererPass rendererpass = new RendererPass(maxtexels);
for (int j = 0; j < maptexturestage.NumTextureStagesRequired; j++)
{
rendererpass.AddStage(new RendererTextureStage(maptexturestage, j, true, mapwidth * Terrain.SquareSize, mapheight * Terrain.SquareSize));
}
rendererpasses.Add(rendererpass);
}
}
}
GraphicsHelperGl g = new GraphicsHelperGl();
//g.ApplyOrtho(windowwidth, windowheight, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
g.EnableBlendSrcAlpha();
Gl.glDepthFunc(Gl.GL_LEQUAL);
int chunkwidth = minimapwidth / numchunks;
int chunkheight = minimapheight / numchunks;
float[] ambientLight = new float[] { 0.4f, 0.4f, 0.4f, 1.0f };
float[] diffuseLight = new float[] { 0.6f, 0.6f, 0.6f, 1.0f };
float[] specularLight = new float[] { 0.2f, 0.2f, 0.2f, 1.0f };
float[] position = new float[] { -1.0f, 0.2f, -0.4f, 1.0f };
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_AMBIENT, ambientLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_DIFFUSE, diffuseLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_SPECULAR, specularLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_POSITION, position);
foreach (RendererPass rendererpass in rendererpasses)
{
rendererpass.Apply();
for (int x = 0; x + chunkwidth < minimapwidth; x += chunkwidth)
{
for (int y = 0; y + chunkheight < minimapheight; y += chunkheight)
{
Gl.glBegin(Gl.GL_QUADS);
//double ul = 0;
//double ur = mapwidth * Terrain.SquareSize;
//double vt = 0;
//double vb = mapheight * Terrain.SquareSize;
double ul = (double)x / minimapwidth * mapwidth * Terrain.SquareSize;
double ur = (double)(x + chunkwidth) / minimapwidth * mapwidth * Terrain.SquareSize;
double vt = (double)y / minimapheight * mapheight * Terrain.SquareSize;
double vb = (double)(y + chunkheight) / minimapheight * mapheight * Terrain.SquareSize;
double xl = minimapx + x;
double xr = minimapx + x + minimapwidth / (double)numchunks;
double yt = minimapy + y;
double yb = minimapy + y + minimapheight / (double)numchunks;
Gl.glTexCoord2d(ul, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vt);
g.Normal(renderableheightmap.GetNormal(x * mapwidth / minimapwidth, y * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[, ]);
Gl.glVertex2d(xl, yt);
Gl.glTexCoord2d(ul, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vb);
g.Normal(renderableheightmap.GetNormal(x * mapwidth / minimapwidth, (y + chunkheight) * mapheight / minimapheight));
//g.Normal( renderableheightmap.normalsperquad[x * mapwidth / minimapwidth, (y + 1) * mapheight / minimapheight ] );
Gl.glVertex2d(xl, yb);
Gl.glTexCoord2d(ur, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vb);
g.Normal(renderableheightmap.GetNormal((x + chunkwidth) * mapwidth / minimapwidth, (y + chunkheight) * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[(x + 1) * mapwidth / minimapwidth, (y + 1) * mapheight / minimapheight]);
Gl.glVertex2d(xr, yb);
Gl.glTexCoord2d(ur, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vt);
g.Normal(renderableheightmap.GetNormal((x + chunkwidth) * mapwidth / minimapwidth, y * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[(x + 1) * mapwidth / minimapwidth, y * mapheight / minimapheight]);
Gl.glVertex2d(xr, yt);
Gl.glEnd();
}
}
}
g.ActiveTexture(0);
Gl.glBindTexture(Gl.GL_TEXTURE_2D, minimaptexture);
Gl.glCopyTexImage2D(Gl.GL_TEXTURE_2D, 0, Gl.GL_RGBA8, minimapx,
RendererSdl.GetInstance().InnerWindowHeight - minimapy - minimapsize,
minimapsize, minimapsize, 0);
Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MIN_FILTER, Gl.GL_NEAREST);
LastMinimapUpdate = DateTime.Now;
// g.RemoveOrtho();
g.ActiveTexture(1);
g.DisableTexture2d();
g.SetTextureScale(1);
g.ActiveTexture(0);
g.SetTextureScale(1);
g.EnableModulate();
Gl.glDisable(Gl.GL_BLEND);
}
else
{
GraphicsHelperGl g = new GraphicsHelperGl();
//Gl.glMatrixMode(Gl.GL_PROJECTION);
//Gl.glPushMatrix();
//Gl.glLoadIdentity();
//Gl.glOrtho(0, windowwidth, windowheight - RendererSdl.GetInstance().OuterWindowHeight, 0, -1, 1); // we'll just draw the minimap directly onto our display
//Gl.glOrtho(0, windowwidth, windowheight, windowheight - RendererSdl.GetInstance().OuterWindowHeight, -1, 1); // we'll just draw the minimap directly onto our display
//Gl.glMatrixMode(Gl.GL_MODELVIEW);
//Gl.glPushMatrix();
//Gl.glLoadIdentity();
g.ActiveTexture(0);
g.EnableTexture2d();
Gl.glBindTexture(Gl.GL_TEXTURE_2D, minimaptexture);
//Gl.glBindTexture(Gl.GL_TEXTURE_2D, (terrain.texturestages[0].texture as GlTexture).GlReference);
Gl.glDisable(Gl.GL_LIGHTING);
Gl.glBegin(Gl.GL_QUADS);
Gl.glTexCoord2d(0, 1);
Gl.glVertex2i(minimapx, minimapy);
Gl.glTexCoord2d(0, 1 - minimapwidth / (double)minimapsize);
Gl.glVertex2i(minimapx, minimapy + minimapheight);
Gl.glTexCoord2d(minimapwidth / (double)minimapsize, 1 - minimapheight / (double)minimapsize);
Gl.glVertex2i(minimapx + minimapwidth, minimapy + minimapheight);
Gl.glTexCoord2d(minimapwidth / (double)minimapsize, 1);
Gl.glVertex2i(minimapx + minimapwidth, minimapy);
Gl.glEnd();
Gl.glEnable(Gl.GL_LIGHTING);
//Gl.glMatrixMode(Gl.GL_PROJECTION);
//Gl.glPopMatrix();
//Gl.glMatrixMode(Gl.GL_MODELVIEW);
//Gl.glPopMatrix();
}
}
// note to self: move this to subscriber?
void DrawMinimap()
{
Terrain terrain = Terrain.GetInstance();
if (DateTime.Now.Subtract(LastMinimapUpdate).TotalMilliseconds > 1000)
//if( true )
{
List<RendererPass> rendererpasses = new List<RendererPass>();
bool multipass = true; // force multipass for now for simplicity
int maxtexels = RendererSdl.GetInstance().MaxTexelUnits;
if (multipass)
{
for (int i = 0; i < terrain.texturestages.Count; i++)
{
MapTextureStage maptexturestage = terrain.texturestages[i];
int numtexturestagesrequired = maptexturestage.NumTextureStagesRequired;
if (numtexturestagesrequired > 0) // exclude Nops
{
RendererPass rendererpass = new RendererPass(maxtexels);
for (int j = 0; j < maptexturestage.NumTextureStagesRequired; j++)
{
rendererpass.AddStage(new RendererTextureStage(maptexturestage, j, true, mapwidth * Terrain.SquareSize, mapheight * Terrain.SquareSize));
}
rendererpasses.Add(rendererpass);
}
}
}
GraphicsHelperGl g = new GraphicsHelperGl();
//g.ApplyOrtho(windowwidth, windowheight, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
g.EnableBlendSrcAlpha();
Gl.glDepthFunc(Gl.GL_LEQUAL);
int chunkwidth = minimapwidth / numchunks;
int chunkheight = minimapheight / numchunks;
float[] ambientLight = new float[] { 0.4f, 0.4f, 0.4f, 1.0f };
float[] diffuseLight = new float[] { 0.6f, 0.6f, 0.6f, 1.0f };
float[] specularLight = new float[] { 0.2f, 0.2f, 0.2f, 1.0f };
float[] position = new float[] { -1.0f, 0.2f, -0.4f, 1.0f };
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_AMBIENT, ambientLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_DIFFUSE, diffuseLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_SPECULAR, specularLight);
Gl.glLightfv(Gl.GL_LIGHT0, Gl.GL_POSITION, position);
foreach (RendererPass rendererpass in rendererpasses)
{
rendererpass.Apply();
for (int x = 0; x + chunkwidth < minimapwidth; x += chunkwidth)
{
for (int y = 0; y + chunkheight < minimapheight; y += chunkheight)
{
Gl.glBegin(Gl.GL_QUADS);
//double ul = 0;
//double ur = mapwidth * Terrain.SquareSize;
//double vt = 0;
//double vb = mapheight * Terrain.SquareSize;
double ul = (double)x / minimapwidth * mapwidth * Terrain.SquareSize;
double ur = (double)(x + chunkwidth) / minimapwidth * mapwidth * Terrain.SquareSize;
double vt = (double)y / minimapheight * mapheight * Terrain.SquareSize;
double vb = (double)(y + chunkheight) / minimapheight * mapheight * Terrain.SquareSize;
double xl = minimapx + x;
double xr = minimapx + x + minimapwidth / (double)numchunks;
double yt = minimapy + y;
double yb = minimapy + y + minimapheight / (double)numchunks;
Gl.glTexCoord2d(ul, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vt);
g.Normal(renderableheightmap.GetNormal(x * mapwidth / minimapwidth, y * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[, ]);
Gl.glVertex2d(xl, yt);
Gl.glTexCoord2d(ul, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ul, vb);
g.Normal(renderableheightmap.GetNormal(x * mapwidth / minimapwidth, (y + chunkheight) * mapheight / minimapheight));
//g.Normal( renderableheightmap.normalsperquad[x * mapwidth / minimapwidth, (y + 1) * mapheight / minimapheight ] );
Gl.glVertex2d(xl, yb);
Gl.glTexCoord2d(ur, vb);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vb);
g.Normal(renderableheightmap.GetNormal((x + chunkwidth) * mapwidth / minimapwidth, (y + chunkheight) * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[(x + 1) * mapwidth / minimapwidth, (y + 1) * mapheight / minimapheight]);
Gl.glVertex2d(xr, yb);
Gl.glTexCoord2d(ur, vt);
Gl.glMultiTexCoord2dARB(Gl.GL_TEXTURE1_ARB, ur, vt);
g.Normal(renderableheightmap.GetNormal((x + chunkwidth) * mapwidth / minimapwidth, y * mapheight / minimapheight));
//g.Normal(renderableheightmap.normalsperquad[(x + 1) * mapwidth / minimapwidth, y * mapheight / minimapheight]);
Gl.glVertex2d(xr, yt);
Gl.glEnd();
}
}
}
g.ActiveTexture(0);
Gl.glBindTexture(Gl.GL_TEXTURE_2D, minimaptexture);
Gl.glCopyTexImage2D(Gl.GL_TEXTURE_2D, 0, Gl.GL_RGBA8, minimapx,
RendererSdl.GetInstance().InnerWindowHeight - minimapy - minimapsize,
minimapsize, minimapsize, 0);
Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MIN_FILTER, Gl.GL_NEAREST);
LastMinimapUpdate = DateTime.Now;
// g.RemoveOrtho();
g.ActiveTexture(1);
g.DisableTexture2d();
g.SetTextureScale(1);
g.ActiveTexture(0);
g.SetTextureScale(1);
g.EnableModulate();
Gl.glDisable(Gl.GL_BLEND);
}
else
{
GraphicsHelperGl g = new GraphicsHelperGl();
//Gl.glMatrixMode(Gl.GL_PROJECTION);
//Gl.glPushMatrix();
//Gl.glLoadIdentity();
//Gl.glOrtho(0, windowwidth, windowheight - RendererSdl.GetInstance().OuterWindowHeight, 0, -1, 1); // we'll just draw the minimap directly onto our display
//Gl.glOrtho(0, windowwidth, windowheight, windowheight - RendererSdl.GetInstance().OuterWindowHeight, -1, 1); // we'll just draw the minimap directly onto our display
//Gl.glMatrixMode(Gl.GL_MODELVIEW);
//Gl.glPushMatrix();
//Gl.glLoadIdentity();
g.ActiveTexture(0);
g.EnableTexture2d();
Gl.glBindTexture(Gl.GL_TEXTURE_2D, minimaptexture);
//Gl.glBindTexture(Gl.GL_TEXTURE_2D, (terrain.texturestages[0].texture as GlTexture).GlReference);
Gl.glDisable(Gl.GL_LIGHTING);
Gl.glBegin(Gl.GL_QUADS);
Gl.glTexCoord2d(0, 1);
Gl.glVertex2i(minimapx, minimapy);
Gl.glTexCoord2d(0, 1 - minimapwidth / (double)minimapsize);
Gl.glVertex2i(minimapx, minimapy + minimapheight);
Gl.glTexCoord2d(minimapwidth / (double)minimapsize, 1 - minimapheight / (double)minimapsize);
Gl.glVertex2i(minimapx + minimapwidth, minimapy + minimapheight);
Gl.glTexCoord2d(minimapwidth / (double)minimapsize, 1);
Gl.glVertex2i(minimapx + minimapwidth, minimapy);
Gl.glEnd();
Gl.glEnable(Gl.GL_LIGHTING);
//Gl.glMatrixMode(Gl.GL_PROJECTION);
//Gl.glPopMatrix();
//Gl.glMatrixMode(Gl.GL_MODELVIEW);
//Gl.glPopMatrix();
}
}