void RenderableWater_WriteNextFrameEvent(Vector3 camerapos)
{
double xmultiplier = scale.x / numsectors;
double ymultiplier = scale.y / numsectors;
GraphicsHelperGl g = new GraphicsHelperGl();
g.SetMaterialColor(new double[] { 0, 0.2, 0.8, 0.6 });
g.EnableBlendSrcAlpha();
g.EnableModulate();
g.DisableTexture2d(); // note to self: could add texture??? (or vertex fragment)
Gl.glDisable(Gl.GL_CULL_FACE); // water has two sides?
g.Normal(new Vector3(0, 0, 1));
for (int x = 0; x < numsectors; x++)
{
Gl.glBegin(Gl.GL_TRIANGLE_STRIP);
for (int y = 0; y <= numsectors; y++)
{
Vector3 posoffset = new Vector3(x * xmultiplier, y * ymultiplier, 0);
Vector3 vertexpos = pos + posoffset;
//Console.WriteLine(vertexpos);
g.Vertex(vertexpos);
vertexpos.x += xmultiplier;
//Console.WriteLine(vertexpos);
g.Vertex(vertexpos);
}
Gl.glEnd();
}
Gl.glEnable(Gl.GL_CULL_FACE);
Gl.glDisable(Gl.GL_BLEND);
g.SetMaterialColor(new double[] { 1, 1, 1, 1 });
}
void RenderableWater_WriteNextFrameEvent(Vector3 camerapos)
{
double xmultiplier = scale.x / numsectors;
double ymultiplier = scale.y / numsectors;
GraphicsHelperGl g = new GraphicsHelperGl();
g.SetMaterialColor(new double[] { 0, 0.2, 0.8, 0.6 });
g.EnableBlendSrcAlpha();
g.EnableModulate();
g.DisableTexture2d(); // note to self: could add texture??? (or vertex fragment)
Gl.glDisable( Gl.GL_CULL_FACE ); // water has two sides?
g.Normal(new Vector3(0, 0, 1));
for (int x = 0; x < numsectors; x++)
{
Gl.glBegin(Gl.GL_TRIANGLE_STRIP);
for (int y = 0; y <= numsectors; y++)
{
Vector3 posoffset = new Vector3( x * xmultiplier, y * ymultiplier, 0 );
Vector3 vertexpos = pos + posoffset;
//Console.WriteLine(vertexpos);
g.Vertex(vertexpos);
vertexpos.x += xmultiplier;
//Console.WriteLine(vertexpos);
g.Vertex(vertexpos);
}
Gl.glEnd();
}
Gl.glEnable( Gl.GL_CULL_FACE );
Gl.glDisable( Gl.GL_BLEND );
g.SetMaterialColor(new double[] { 1, 1, 1, 1 });
}
// note to self: move this to subscriber?
void DrawFrustrum(Vector3 camerapos)
{
FrustrumCulling frustrum = FrustrumCulling.GetInstance();
Vector2 cameraposonmap = new Vector2(camerapos.x * minimapwidth / mapwidth,
camerapos.y * minimapheight / mapheight); // ignore z
Vector2 direction = new Vector2(frustrum.viewray.x, frustrum.viewray.y); // ignore z
Gl.glDisable(Gl.GL_LIGHTING);
Gl.glDisable(Gl.GL_CULL_FACE);
GraphicsHelperGl g = new GraphicsHelperGl();
g.DisableTexture2d();
//g.SetColor(0, 0, 1);
//g.SetMaterialColor(new Color(0, 0, 1));
Gl.glColor3ub(0, 255, 0);
Gl.glDepthFunc(Gl.GL_ALWAYS);
Gl.glBegin(Gl.GL_LINES);
Gl.glVertex2d(minimapx + cameraposonmap.x, minimapy + cameraposonmap.y);
Gl.glVertex2d(minimapx + cameraposonmap.x + direction.x * viewdirectionlinelength, minimapy + cameraposonmap.y + direction.y * viewdirectionlinelength);
Gl.glEnd();
Gl.glEnable(Gl.GL_LIGHTING);
Gl.glDepthFunc(Gl.GL_LEQUAL);
Gl.glColor3ub(255, 255, 255);
}
public void ApplyCamera()
{
UpdateCamera();
// rotate so z axis is up, and x axis is forward
PlayerMovement playermovement = PlayerMovement.GetInstance();
GraphicsHelperGl g = new GraphicsHelperGl();
g.Rotate(90, 0, 0, 1);
g.Rotate(90, 0, 1, 0);
Rot inversecamerarot = camerarot.Inverse();
//inversecamerarot.Inverse();
g.Rotate(inversecamerarot);
//g.Rotate(camerarot);
g.Translate(-camerapos);
}
void RenderableMinimap_WriteNextFrameEvent(Vector3 camerapos)
{
//Console.WriteLine( "RenderableMinimap_WriteNextFrameEvent" );
GetDimensions();
GraphicsHelperGl g = new GraphicsHelperGl();
g.CheckError();
//LogFile.WriteLine( windowwidth + " " + windowheight + " " + RendererSdl.GetInstance().OuterWindowWidth + " " + RendererSdl.GetInstance().OuterWindowHeight );
g.ApplyOrtho(windowwidth, windowheight, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight);
g.CheckError();
DrawMinimap();
g.CheckError();
DrawFrustrum(camerapos);
g.CheckError();
if (Render != null)
{
Render(minimapx, minimapy, minimapwidth, minimapheight);
}
g.CheckError();
g.RemoveOrtho();
g.CheckError();
}
// note to self: move this to subscriber?
void DrawFrustrum(Vector3 camerapos)
{
FrustrumCulling frustrum = FrustrumCulling.GetInstance();
Vector2 cameraposonmap = new Vector2(camerapos.x * minimapwidth / mapwidth,
camerapos.y * minimapheight / mapheight ); // ignore z
Vector2 direction = new Vector2(frustrum.viewray.x, frustrum.viewray.y); // ignore z
Gl.glDisable(Gl.GL_LIGHTING);
Gl.glDisable(Gl.GL_CULL_FACE);
GraphicsHelperGl g = new GraphicsHelperGl();
g.DisableTexture2d();
//g.SetColor(0, 0, 1);
//g.SetMaterialColor(new Color(0, 0, 1));
Gl.glColor3ub(0, 255, 0);
Gl.glDepthFunc(Gl.GL_ALWAYS);
Gl.glBegin(Gl.GL_LINES);
Gl.glVertex2d(minimapx + cameraposonmap.x, minimapy + cameraposonmap.y);
Gl.glVertex2d(minimapx + cameraposonmap.x + direction.x * viewdirectionlinelength, minimapy + cameraposonmap.y + direction.y * viewdirectionlinelength);
Gl.glEnd();
Gl.glEnable(Gl.GL_LIGHTING);
Gl.glDepthFunc(Gl.GL_LEQUAL);
Gl.glColor3ub(255, 255, 255);
}
public TerrainView( TerrainModel terrainmodel )
{
LogFile.WriteLine( "TerrainView( " + terrainmodel + ")" );
this.terrainmodel = terrainmodel;
terrainmodel.TerrainModified += new TerrainModel.TerrainModifiedHandler( terrainmodel_TerrainModified );
GraphicsHelperGl g = new GraphicsHelperGl();
g.CheckError();
foreach (MapTextureStageModel maptexturestagemodel in terrainmodel.texturestages)
{
LogFile.WriteLine( "create maptexturestageview for " + maptexturestagemodel );
mapviewbymapmodel.Add( maptexturestagemodel, new MapTextureStageView( maptexturestagemodel ) );
}
g.CheckError();
renderableheightmap = new RenderableHeightMap( this, terrainmodel, 1, 1 );
//renderableallfeatures = new RenderableAllFeatures(this);
// water must be last, otherwise you cant see through it ;-)
renderablewater = new RenderableWater(new Vector3(), new Vector2(terrainmodel.HeightMapWidth , terrainmodel.HeightMapHeight ));
// minimap last, covers everything else
//renderableminimap = new RenderableMinimap(this, renderableheightmap);
}
// dependencies:
// - RendererFactory.GetInstance()
// - Tao.OpenGl
public HitTarget GetClickedHitTarget(IRenderable renderable, int MouseX, int MouseY)
{
GraphicsHelperGl g = new GraphicsHelperGl();
g.CheckError();
IRenderer renderer = RendererFactory.GetInstance();
ArrayList results = new ArrayList();
int[] viewport = new int[4];
Gl.glGetIntegerv(Gl.GL_VIEWPORT, viewport);
g.CheckError();
CreateSelectBuffer();
g.CheckError();
// This Creates A Matrix That Will Zoom Up To A Small Portion Of The Screen, Where The Mouse Is.
Gl.glMatrixMode(Gl.GL_PROJECTION);
g.CheckError();
Gl.glPushMatrix(); // save old matrix, we restore it at end
g.CheckError();
Gl.glLoadIdentity();
g.CheckError();
Glu.gluPickMatrix((float)MouseX, (float)(renderer.WindowHeight - MouseY), 1.0f, 1.0f, viewport);
g.CheckError();
Glu.gluPerspective(renderer.FieldOfView, (float)renderer.WindowWidth / (float)renderer.WindowHeight, renderer.NearClip, renderer.FarClip);
g.CheckError();
Gl.glMatrixMode(Gl.GL_MODELVIEW);
g.CheckError();
Gl.glRenderMode(Gl.GL_SELECT);
g.CheckError();
Gl.glInitNames();
g.CheckError();
Gl.glPushName(0); // Push one entry onto the stack; we will use LoadName to change this value throughout the rendering
g.CheckError();
bAddingNames = true;
hittargets = new ArrayList();
renderable.Render();
bAddingNames = false;
// return projection matrix to normal
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glPopMatrix();
Gl.glMatrixMode(Gl.GL_MODELVIEW);
int iNumHits = Gl.glRenderMode(Gl.GL_RENDER);
int hitname = GetNearestBufferName(iNumHits);
LogFile.WriteLine("hitname: " + hitname.ToString());
if (hitname == -1 || hitname == 0)
{
LogFile.WriteLine("not in buffer");
return(null);
}
FreeSelectBuffer();
new GraphicsHelperGl().CheckError();
if (hittargets.Count == 0)
{
return(null);
}
if (iNumHits == 0)
{
//LogFile.WriteLine("no hits");
return(null);
}
//LogFile.WriteLine(hittargets[hitname - 1]);
return((HitTarget)hittargets[hitname - 1]);
}
public RendererPass(int maxtexels)
{
g = new GraphicsHelperGl();
//texturestages = new TextureStage[maxtexels];
this.maxtexels = maxtexels;
}
// 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.maptexturestagemodel][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))
//if (true)
{
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();
}
// applies texture stage setup to gl. texturestagenum will be 0 except for blend
// where it will be either 0 or 1
// texture coordinates are handled independently (?)
// either we're using multipass or we're using multitexture. multipass still uses 2 multitexture units, but not 4, 6, 8, ...
public void Apply(int texturestagenum, bool UsingMultipass, int mapwidth, int mapheight)
{
//Console.WriteLine( "MapTextureStageView for " + maptexturestagemodel + " " + ((GlTexture)splattexture).GlReference + " Apply" );
GlTextureCombine texturecombine;
GraphicsHelperGl g = new GraphicsHelperGl();
switch (maptexturestagemodel.Operation)
{
case MapTextureStageModel.OperationType.NoTexture:
g.DisableTexture2d();
g.EnableModulate();
break;
case MapTextureStageModel.OperationType.Add:
splattexture.Apply();
SetTextureScale(1 / (double)maptexturestagemodel.Tilesize);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Add;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Previous);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Apply();
break;
case MapTextureStageModel.OperationType.Blend:
if (UsingMultipass)
{
if (texturestagenum == 0)
{
blendtexture.Apply();
SetTextureScale(1 / (double)mapwidth);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Replace;
texturecombine.Args[0].SetAlphaSource(GlCombineArg.Source.Texture, GlCombineArg.Operand.Alpha);
texturecombine.Apply();
}
else
{
splattexture.Apply();
SetTextureScale(1 / (double)maptexturestagemodel.Tilesize);
new GraphicsHelperGl().EnableModulate();
}
}
else
{
if (texturestagenum == 0)
{
blendtexture.Apply();
SetTextureScale(1 / (double)mapwidth);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Replace;
texturecombine.Args[0].SetRgbSource(GlCombineArg.Source.Previous, GlCombineArg.Operand.Rgb);
texturecombine.Args[0].SetAlphaSource(GlCombineArg.Source.Texture, GlCombineArg.Operand.Alpha);
texturecombine.Apply();
}
else
{
splattexture.Apply();
SetTextureScale(1 / (double)maptexturestagemodel.Tilesize);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Interpolate;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Previous);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Args[2].SetRgbSource(GlCombineArg.Source.Previous, GlCombineArg.Operand.Alpha);
texturecombine.Args[2].SetAlphaSource(GlCombineArg.Source.Previous, GlCombineArg.Operand.Alpha);
texturecombine.Apply();
}
}
break;
case MapTextureStageModel.OperationType.Multiply:
splattexture.Apply();
SetTextureScale(1 / (double)maptexturestagemodel.Tilesize);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Modulate;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Previous);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Apply();
break;
case MapTextureStageModel.OperationType.Subtract:
splattexture.Apply();
SetTextureScale(1 / (double)maptexturestagemodel.Tilesize);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Subtract;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Previous);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Apply();
break;
case MapTextureStageModel.OperationType.Replace:
splattexture.Apply();
SetTextureScale(1 / (double)maptexturestagemodel.Tilesize);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Modulate;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Fragment);
texturecombine.Apply();
break;
}
}
public void ApplyCamera()
{
UpdateCamera();
// rotate so z axis is up, and x axis is forward
PlayerMovement playermovement = PlayerMovement.GetInstance();
GraphicsHelperGl g = new GraphicsHelperGl();
g.Rotate(90, 0, 0, 1);
g.Rotate(90, 0, 1, 0);
Rot inversecamerarot = camerarot.Inverse();
//inversecamerarot.Inverse();
g.Rotate(inversecamerarot);
//g.Rotate(camerarot);
g.Translate(-camerapos);
}
// dependencies:
// - RendererFactory.GetInstance()
// - Tao.OpenGl
public HitTarget GetClickedHitTarget( IRenderable renderable, int MouseX, int MouseY )
{
GraphicsHelperGl g = new GraphicsHelperGl();
g.CheckError();
IRenderer renderer = RendererFactory.GetInstance();
ArrayList results = new ArrayList();
int[] viewport = new int[ 4 ];
Gl.glGetIntegerv( Gl.GL_VIEWPORT, viewport );
g.CheckError();
CreateSelectBuffer();
g.CheckError();
// This Creates A Matrix That Will Zoom Up To A Small Portion Of The Screen, Where The Mouse Is.
Gl.glMatrixMode( Gl.GL_PROJECTION );
g.CheckError();
Gl.glPushMatrix(); // save old matrix, we restore it at end
g.CheckError();
Gl.glLoadIdentity();
g.CheckError();
Glu.gluPickMatrix( (float)MouseX, (float)(renderer.WindowHeight - MouseY), 1.0f, 1.0f, viewport );
g.CheckError();
Glu.gluPerspective( renderer.FieldOfView, (float)renderer.WindowWidth / (float)renderer.WindowHeight, renderer.NearClip, renderer.FarClip );
g.CheckError();
Gl.glMatrixMode(Gl.GL_MODELVIEW);
g.CheckError();
Gl.glRenderMode( Gl.GL_SELECT );
g.CheckError();
Gl.glInitNames();
g.CheckError();
Gl.glPushName( 0 ); // Push one entry onto the stack; we will use LoadName to change this value throughout the rendering
g.CheckError();
bAddingNames = true;
hittargets = new ArrayList();
renderable.Render();
bAddingNames = false;
// return projection matrix to normal
Gl.glMatrixMode( Gl.GL_PROJECTION );
Gl.glPopMatrix();
Gl.glMatrixMode( Gl.GL_MODELVIEW );
int iNumHits = Gl.glRenderMode( Gl.GL_RENDER );
int hitname = GetNearestBufferName( iNumHits );
LogFile.WriteLine( "hitname: " + hitname.ToString() );
if( hitname == -1 || hitname == 0 )
{
LogFile.WriteLine("not in buffer");
return null;
}
FreeSelectBuffer();
new GraphicsHelperGl().CheckError();
if (hittargets.Count == 0)
{
return null;
}
if (iNumHits == 0)
{
//LogFile.WriteLine("no hits");
return null;
}
//LogFile.WriteLine(hittargets[hitname - 1]);
return (HitTarget)hittargets[ hitname - 1 ];
}
// note to self: move this to subscriber?
void DrawMinimap()
{
TerrainModel terrain = MetaverseClient.GetInstance().worldstorage.terrainmodel;
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++)
{
MapTextureStageModel 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, mapheight));
}
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;
double ur = (double)(x + chunkwidth) / minimapwidth * mapwidth;
double vt = (double)y / minimapheight * mapheight;
double vb = (double)(y + chunkheight) / minimapheight * mapheight;
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().WindowHeight - 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();
}
}
// applies texture stage setup to gl. texturestagenum will be 0 except for blend
// where it will be either 0 or 1
// texture coordinates are handled independently (?)
// either we're using multipass or we're using multitexture. multipass still uses 2 multitexture units, but not 4, 6, 8, ...
public void Apply(int texturestagenum, bool UsingMultipass, int mapwidth, int mapheight)
{
//Console.WriteLine( "MapTextureStageView for " + maptexturestagemodel + " " + ((GlTexture)splattexture).GlReference + " Apply" );
GlTextureCombine texturecombine;
GraphicsHelperGl g = new GraphicsHelperGl();
switch (maptexturestagemodel.Operation)
{
case MapTextureStageModel.OperationType.NoTexture:
g.DisableTexture2d();
g.EnableModulate();
break;
case MapTextureStageModel.OperationType.Add:
splattexture.Apply();
SetTextureScale(1 / (double)maptexturestagemodel.Tilesize);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Add;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Previous);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Apply();
break;
case MapTextureStageModel.OperationType.Blend:
if (UsingMultipass)
{
if (texturestagenum == 0)
{
blendtexture.Apply();
SetTextureScale(1 / (double)mapwidth);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Replace;
texturecombine.Args[0].SetAlphaSource(GlCombineArg.Source.Texture, GlCombineArg.Operand.Alpha);
texturecombine.Apply();
}
else
{
splattexture.Apply();
SetTextureScale( 1 / (double)maptexturestagemodel.Tilesize );
new GraphicsHelperGl().EnableModulate();
}
}
else
{
if (texturestagenum == 0)
{
blendtexture.Apply();
SetTextureScale(1 / (double)mapwidth);
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Replace;
texturecombine.Args[0].SetRgbSource(GlCombineArg.Source.Previous, GlCombineArg.Operand.Rgb);
texturecombine.Args[0].SetAlphaSource(GlCombineArg.Source.Texture, GlCombineArg.Operand.Alpha);
texturecombine.Apply();
}
else
{
splattexture.Apply();
SetTextureScale( 1 / (double)maptexturestagemodel.Tilesize );
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Interpolate;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Previous);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Args[2].SetRgbSource(GlCombineArg.Source.Previous, GlCombineArg.Operand.Alpha);
texturecombine.Args[2].SetAlphaSource(GlCombineArg.Source.Previous, GlCombineArg.Operand.Alpha);
texturecombine.Apply();
}
}
break;
case MapTextureStageModel.OperationType.Multiply:
splattexture.Apply();
SetTextureScale( 1 / (double)maptexturestagemodel.Tilesize );
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Modulate;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Previous);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Apply();
break;
case MapTextureStageModel.OperationType.Subtract:
splattexture.Apply();
SetTextureScale( 1 / (double)maptexturestagemodel.Tilesize );
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Subtract;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Previous);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Apply();
break;
case MapTextureStageModel.OperationType.Replace:
splattexture.Apply();
SetTextureScale( 1 / (double)maptexturestagemodel.Tilesize );
texturecombine = new GlTextureCombine();
texturecombine.Operation = GlTextureCombine.OperationType.Modulate;
texturecombine.Args[0].SetRgbaSource(GlCombineArg.Source.Texture);
texturecombine.Args[1].SetRgbaSource(GlCombineArg.Source.Fragment);
texturecombine.Apply();
break;
}
}
void RenderableMinimap_WriteNextFrameEvent(Vector3 camerapos)
{
//Console.WriteLine( "RenderableMinimap_WriteNextFrameEvent" );
GetDimensions();
GraphicsHelperGl g = new GraphicsHelperGl();
g.CheckError();
//LogFile.WriteLine( windowwidth + " " + windowheight + " " + RendererSdl.GetInstance().OuterWindowWidth + " " + RendererSdl.GetInstance().OuterWindowHeight );
g.ApplyOrtho( windowwidth, windowheight, RendererSdl.GetInstance().OuterWindowWidth, RendererSdl.GetInstance().OuterWindowHeight );
g.CheckError();
DrawMinimap();
g.CheckError();
DrawFrustrum(camerapos);
g.CheckError();
if (Render != null)
{
Render(minimapx, minimapy, minimapwidth, minimapheight);
}
g.CheckError();
g.RemoveOrtho();
g.CheckError();
}
// 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.maptexturestagemodel][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))
//if (true)
{
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();
}
public RendererPass(int maxtexels)
{
g = new GraphicsHelperGl();
//texturestages = new TextureStage[maxtexels];
this.maxtexels = maxtexels;
}
// note to self: move this to subscriber?
void DrawMinimap()
{
TerrainModel terrain = MetaverseClient.GetInstance().worldstorage.terrainmodel;
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++)
{
MapTextureStageModel 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, mapheight));
}
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;
double ur = (double)(x + chunkwidth) / minimapwidth * mapwidth;
double vt = (double)y / minimapheight * mapheight;
double vb = (double)(y + chunkheight) / minimapheight * mapheight;
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().WindowHeight - 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();
}
}
