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- re-added software translucency splitting for old hardware.

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This commit is contained in:
Christoph Oelckers 2016-04-26 21:49:30 +02:00
parent b06c86db38
commit 3faf5afa3a
1 changed files with 41 additions and 2 deletions
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43
src/gl/scene/gl_drawinfo.cpp
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@ -319,8 +319,29 @@ void GLDrawList::SortWallIntoPlane(SortNode * head,SortNode * sort)
// Bad things will happen if the memory must be reallocated!
GLWall w = *ws;
AddWall(&w);
// Splitting is done in the shader with clip planes, if available
if (gl.glslversion < 1.3f)
{
GLWall * ws1;
ws1=&walls[walls.Size()-1];
ws=&walls[drawitems[sort->itemindex].index]; // may have been reallocated!
float newtexv = ws->uplft.v + ((ws->lolft.v - ws->uplft.v) / (ws->zbottom[0] - ws->ztop[0])) * (fh->z - ws->ztop[0]);
// Splitting is done in the shader with clip planes.
// I make the very big assumption here that translucent walls in sloped sectors
// and 3D-floors never coexist in the same level. If that were the case this
// code would become extremely more complicated.
if (!ceiling)
{
ws->ztop[1] = ws1->zbottom[1] = ws->ztop[0] = ws1->zbottom[0] = fh->z;
ws->uprgt.v = ws1->lorgt.v = ws->uplft.v = ws1->lolft.v = newtexv;
}
else
{
ws1->ztop[1] = ws->zbottom[1] = ws1->ztop[0] = ws->zbottom[0] = fh->z;
ws1->uplft.v = ws->lolft.v = ws1->uprgt.v = ws->lorgt.v=newtexv;
}
}
SortNode * sort2 = SortNodes.GetNew();
memset(sort2, 0, sizeof(SortNode));
@ -357,8 +378,26 @@ void GLDrawList::SortSpriteIntoPlane(SortNode * head,SortNode * sort)
// We have to split this sprite
GLSprite s=*ss;
AddSprite(&s); // add a copy to avoid reallocation issues.
// Splitting is done in the shader with clip planes, if available
if (gl.glslversion < 1.3f)
{
GLSprite * ss1;
ss1=&sprites[sprites.Size()-1];
ss=&sprites[drawitems[sort->itemindex].index]; // may have been reallocated!
float newtexv=ss->vt + ((ss->vb-ss->vt)/(ss->z2-ss->z1))*(fh->z-ss->z1);
// Splitting is done in the shader with clip planes.
if (!ceiling)
{
ss->z1=ss1->z2=fh->z;
ss->vt=ss1->vb=newtexv;
}
else
{
ss1->z1=ss->z2=fh->z;
ss1->vt=ss->vb=newtexv;
}
}
SortNode * sort2=SortNodes.GetNew();
memset(sort2,0,sizeof(SortNode));