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Fix Y offsets on scaled textures in OpenGL

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spherallic 2023-06-28 21:04:34 +02:00
parent 5bee4e1cd8
commit 4c4584f9d1
1 changed files with 6 additions and 4 deletions
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10
src/hardware/hw_main.c
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@ -1146,18 +1146,20 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
// check TOP TEXTURE
if ((worldhighslope < worldtopslope || worldhigh < worldtop) && gl_toptexture)
{
fixed_t texheight = FixedDiv(textureheight[gl_toptexture], gl_sidedef->scaley_top);
// PEGGING
if (gl_linedef->flags & ML_DONTPEGTOP)
texturevpeg = 0;
else if (gl_linedef->flags & ML_SKEWTD)
texturevpeg = worldhigh + textureheight[gl_toptexture] - worldtop;
texturevpeg = worldhigh + texheight - worldtop;
else
texturevpeg = gl_backsector->ceilingheight + textureheight[gl_toptexture] - gl_frontsector->ceilingheight;
texturevpeg = gl_backsector->ceilingheight + texheight - gl_frontsector->ceilingheight;
texturevpeg += gl_sidedef->rowoffset + gl_sidedef->offsety_top;
// This is so that it doesn't overflow and screw up the wall, it doesn't need to go higher than the texture's height anyway
texturevpeg %= textureheight[gl_toptexture];
texturevpeg %= texheight;
grTex = HWR_GetTexture(gl_toptexture);
xscale = FIXED_TO_FLOAT(gl_sidedef->scalex_top) * grTex->scaleX;
@ -1219,7 +1221,7 @@ static void HWR_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
texturevpeg += gl_sidedef->rowoffset + gl_sidedef->offsety_bot;
// This is so that it doesn't overflow and screw up the wall, it doesn't need to go higher than the texture's height anyway
texturevpeg %= textureheight[gl_bottomtexture];
texturevpeg %= FixedDiv(textureheight[gl_bottomtexture], gl_sidedef->scaley_bot);
grTex = HWR_GetTexture(gl_bottomtexture);
xscale = FIXED_TO_FLOAT(gl_sidedef->scalex_bot) * grTex->scaleX;