From 2e789cb9894ac5a9565013b134f1c1e51174f430 Mon Sep 17 00:00:00 2001 From: Stijn Buys Date: Sun, 13 Jul 2008 00:36:09 +0000 Subject: skyglobe --- src/model/vertexarray.cc | 42 +++++++++++++++++++++++++----------------- 1 file changed, 25 insertions(+), 17 deletions(-) (limited to 'src/model/vertexarray.cc') diff --git a/src/model/vertexarray.cc b/src/model/vertexarray.cc index da9c3d2..b0da6ab 100644 --- a/src/model/vertexarray.cc +++ b/src/model/vertexarray.cc @@ -75,34 +75,18 @@ void VertexArray::add_sphere() math::Vector3f v; math::Vector3f n; math::Vector3f tex; - int count; - //float h = (float) (SPHERESEGMENTS-1) / 2 -1; + // add sphere for (int j=0; j < (SPHERESEGMENTS-1) / 2; j++) { float r = sintable[j]; float r1 = sintable[j+1]; -/* v.assign(r, 0, costable[j]); - n = v; - n.normalize(); - tex.assign(1, (float)(SPHERESEGMENTS-1-j) / (float)(SPHERESEGMENTS-1), 0); - add_vertex(v, n, white, tex); - - v = math::Vector3f(r1, 0, costable[j+1]); - n = v; - n.normalize(); - tex.assign(1, (float) (SPHERESEGMENTS-2-j) / (float)(SPHERESEGMENTS-1), 0 ); - add_vertex(v, n, white, tex); - - count =2; -*/ for (int i = 0; i < SPHERESEGMENTS; i++) { v = math::Vector3f(r*costable[i], r*sintable[i], costable[j]); n = v; n.normalize(); - //tex.assign((float)i/(float)(SPHERESEGMENTS), (float) (j) / h, 0); tex.assign((float)i/(float)(SPHERESEGMENTS-1), -costable[j]/2 + 0.5f , 0); add_vertex(v, n, white, tex); @@ -116,6 +100,30 @@ void VertexArray::add_sphere() } + // add inside-out sphere + for (int j=0; j < (SPHERESEGMENTS-1) / 2; j++) { + + float r = sintable[j]; + float r1 = sintable[j+1]; + + + for (int i = SPHERESEGMENTS -1 ; i >= 0; i--) { + v = math::Vector3f(r*costable[i], r*sintable[i], costable[j]); + n = v; + n.normalize(); + tex.assign(1-(float)i/(float)(SPHERESEGMENTS-1), -costable[j]/2 + 0.5f , 0); + add_vertex(v, n, white, tex); + + v = math::Vector3f(r1*costable[i], r1*sintable[i], costable[j+1]); + n = v; + n.normalize(); + tex.assign(1-(float)i/(float)(SPHERESEGMENTS-1), -costable[j+1]/2 + 0.5f, 0); + add_vertex(v, n, white, tex); + count +=2; + } + + } + delete[] sintable; delete[] costable; } -- cgit v1.2.3