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)
g.Normal(new Vector3(0, 0, 1));
for (int x = 0; x < numsectors; x++)
{
Gl.glBegin(Gl.GL_TRIANGLE_STRIP);
for (int y = numsectors; y >= 0; 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.glDisable(Gl.GL_BLEND);
g.SetMaterialColor(new double[] { 1, 1, 1, 1 });
}
// 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();
}