kai/assaultcube-
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

backported polygon offset replacement from sauer

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@2673 e016b1c5-ed68-44aa-a2f7-31cac88cffde
This commit is contained in:
Lee Salzman
2008-09-18 01:43:44 +00:00
parent 76ab90d17f
commit a0c6318eea
2 changed files with 44 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
source/src/rendergl.cpp
+42 -3
View File
@@ -114,7 +114,6 @@ void gl_init(int w, int h, int bpp, int depth, int fsaa)
glEnable(GL_LINE_SMOOTH);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glPolygonOffset(-3.0, -3.0);
glCullFace(GL_FRONT);
glEnable(GL_CULL_FACE);
@@ -126,6 +125,44 @@ void gl_init(int w, int h, int bpp, int depth, int fsaa)
camera1 = player1;
}
FVAR(polygonoffsetfactor, -3.0f);
FVAR(polygonoffsetunits, -3.0f);
FVAR(depthoffset, 0.005f);
void enablepolygonoffset(GLenum type)
{
if(!depthoffset)
{
glPolygonOffset(polygonoffsetfactor, polygonoffsetunits);
glEnable(type);
return;
}
GLdouble offsetmatrix[16];
memcpy(offsetmatrix, projmatrix, 16*sizeof(GLdouble));
offsetmatrix[14] += depthoffset * projmatrix[10];
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(offsetmatrix);
glMatrixMode(GL_MODELVIEW);
}
void disablepolygonoffset(GLenum type, bool restore)
{
if(!depthoffset)
{
glDisable(type);
return;
}
if(restore)
{
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(projmatrix);
glMatrixMode(GL_MODELVIEW);
}
}
void line(int x1, int y1, float z1, int x2, int y2, float z2)
{
glBegin(GL_POLYGON);
@@ -948,11 +985,13 @@ void gl_drawframe(int w, int h, float changelod, float curfps)
if(editmode)
{
if(cursordepth==1.0f) worldpos = camera1->o;
glEnable(GL_POLYGON_OFFSET_LINE);
enablepolygonoffset(GL_POLYGON_OFFSET_LINE);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glDepthMask(GL_FALSE);
cursorupdate();
glDepthMask(GL_TRUE);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glDisable(GL_POLYGON_OFFSET_LINE);
disablepolygonoffset(GL_POLYGON_OFFSET_LINE, false);
}
extern vector<vertex> verts;