/*
==================
R_DrawElements
Optionally performs our own glDrawElements that looks for strip conditions
instead of using the single glDrawElements call that may be inefficient
without compiled vertex arrays.
==================
*/
static void R_DrawElements( int numIndexes, const glIndex_t *indexes ) {
int primitives;
primitives = r_primitives->integer;
// default is to use triangles if compiled vertex arrays are present
if ( primitives == 0 ) {
if ( qglLockArraysEXT ) {
primitives = 2;
} else {
primitives = 1;
}
}
if ( primitives == 2 ) {
qglDrawElements( GL_TRIANGLES,
numIndexes,
GL_INDEX_TYPE,
indexes );
return;
}
if ( primitives == 1 ) {
R_DrawStripElements( numIndexes, indexes, qglArrayElement );
return;
}
if ( primitives == 3 ) {
R_DrawStripElements( numIndexes, indexes, R_ArrayElementDiscrete );
return;
}
// anything else will cause no drawing
}
/*
==================
R_DrawElements
Optionally performs our own glDrawElements that looks for strip conditions
instead of using the single glDrawElements call that may be inefficient
without compiled vertex arrays.
==================
*/
static void R_DrawElements(int numIndexes, const glIndex_t *indexes)
{
switch (r_primitives->integer)
{
case 0:
// default is to use triangles if compiled vertex arrays are present
if (qglLockArraysEXT)
{
qglDrawElements(GL_TRIANGLES, numIndexes, GL_INDEX_TYPE, indexes);
}
else
{
R_DrawStripElements(numIndexes, indexes, R_ArrayElement);
}
return;
case 1:
R_DrawStripElements(numIndexes, indexes, R_ArrayElement);
return;
case 2:
qglDrawElements(GL_TRIANGLES, numIndexes, GL_INDEX_TYPE, indexes);
return;
case 3:
R_DrawStripElements(numIndexes, indexes, R_ArrayElementDiscrete);
return;
default: // anything else will cause no drawing
return;
}
}
static void R_DrawElements( int numIndexes, const glIndex_t *indexes ) {
#ifdef GL_VERSION_ES_CM_1_0
int i;
//Com_Printf("R_DrawElements(): r_primitives %d numIndexes %d\n", r_primitives->integer, numIndexes);
if ( r_primitives->integer != 2 && r_primitives->integer != 0 ) {
Com_Printf("Error: R_DrawElements() not implemented on GLES for r_primitives != 2 (r_primitives %d)\n", r_primitives->integer);
return;
}
// GLES does not support GL_UNSIGNED_INT for glDrawElements, so we'll convert values on the fly - this is SLOW, as you may imagine.
for (i = 0; i < numIndexes; i++)
indexes_short[i] = indexes[i];
qglDrawElements(GL_TRIANGLES, numIndexes, GL_UNSIGNED_SHORT, indexes_short);
#else
int primitives;
primitives = r_primitives->integer;
// default is to use triangles if compiled vertex arrays are present
if ( primitives == 0 ) {
if ( qglLockArraysEXT ) {
primitives = 2;
} else {
primitives = 1;
}
}
if ( primitives == 2 ) {
qglDrawElements( GL_TRIANGLES,
numIndexes,
GL_INDEX_TYPE,
indexes );
return;
}
if ( primitives == 1 ) {
R_DrawStripElements( numIndexes, indexes, qglArrayElement );
return;
}
if ( primitives == 3 ) {
R_DrawStripElements( numIndexes, indexes, R_ArrayElementDiscrete );
return;
}
#endif
// anything else will cause no drawing
}
//R_DRAWCEL
static void R_DrawCel( int numIndexes, const glIndex_t *indexes ) {
int primitives;
if(
//. ignore the 2d projection. do i smell the HUD?
(backEnd.projection2D == qtrue) ||
//. ignore general entitites that are sprites. SEE NOTE #3.
(backEnd.currentEntity->e.reType == RT_SPRITE) ||
//. ignore these liquids. why? ever see liquid with tris on the surface? exactly. SEE NOTE #4.
(tess.shader->contentFlags & (CONTENTS_WATER | CONTENTS_LAVA | CONTENTS_SLIME | CONTENTS_FOG)) ||
//. ignore things that are two sided, meaning mostly things that have transparency. SEE NOTE #1.
(tess.shader->cullType == CT_TWO_SIDED)
) {
return;
}
primitives = r_primitives->integer;
// default is to use triangles if compiled vertex arrays are present
if ( primitives == 0 ) {
if ( qglLockArraysEXT ) {
primitives = 2;
} else {
primitives = 1;
}
}
//. correction for mirrors. SEE NOTE #2.
if(backEnd.viewParms.isMirror == qtrue) { qglCullFace (GL_FRONT); }
else { qglCullFace (GL_BACK); }
qglEnable (GL_BLEND);
qglBlendFunc (GL_SRC_ALPHA ,GL_ONE_MINUS_SRC_ALPHA);
qglColor3f (0.0f,0.0f,0.0f);
qglLineWidth( (float) r_celoutline->integer );
if(primitives == 2) {
qglDrawElements( GL_TRIANGLES, numIndexes, GL_INDEX_TYPE, indexes );
} else if(primitives == 1) {
R_DrawStripElements( numIndexes, indexes, qglArrayElement );
} else if(primitives == 3) {
R_DrawStripElements( numIndexes, indexes, R_ArrayElementDiscrete );
}
//. correction for mirrors. SEE NOTE #2.
if(backEnd.viewParms.isMirror == qtrue) { qglCullFace (GL_BACK); }
else { qglCullFace (GL_FRONT); }
qglDisable (GL_BLEND);
return;
/* Notes
1. this is going to be a pain in the arse. it fixes things like light `beams` from being cel'd but it
also will ignore any other shader set with no culling. this usually is everything that is translucent.
but this is a good hack to clean up the screen untill something more selective comes along. or who knows
group desision might actually be that this is liked. if so i take back calling it a `hack`, lol.
= bob.
2. mirrors display correctly because the normals of the displayed are inverted of normal space. so to
continue to have them display correctly, we must invert them inversely from a normal inversion.
= bob.
3. this turns off a lot of space hogging sprite cel outlines. picture if you will five people in a small
room all shooting rockets. each smoke puff gets a big black square around it, each explosion gets a big
black square around it, and now nobody can see eachother because everyones screen is solid black.
= bob.
4. ignoring liquids means you will not get black tris lines all over the top of your liquid. i put this in
after seeing the lava on q3dm7 and water on q3ctf2 that had black lines all over the top, making the
liquids look solid instead of... liquid.
= bob.
*/
}
