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- create vertex buffer data for horizon portals in the constructor instead of in the draw function.

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This was the last remaining place where the vertex buffer was accessed in the render pass.
This commit is contained in:
Christoph Oelckers 2016-08-26 18:18:50 +02:00
parent 597e10116f
commit c9578ae72d
3 changed files with 68 additions and 62 deletions
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2
src/gl/scene/gl_flats.cpp
View file

@ -200,7 +200,7 @@ void GLFlat::DrawSubsector(subsector_t * sub)
unsigned int vi[4];
vi[0] = 0;
for (unsigned int i = 1; i < sub->numlines; i += 2)
for (unsigned int i = 1; i < sub->numlines-1; i += 2)
{
if (i < sub->numlines - 3)
{

119
src/gl/scene/gl_portal.cpp
View file

@ -1070,6 +1070,66 @@ void GLLineToLinePortal::RenderAttached()
//
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
GLHorizonPortal::GLHorizonPortal(GLHorizonInfo * pt, bool local)
: GLPortal(local)
{
origin = pt;
// create the vertex data for this horizon portal.
GLSectorPlane * sp = &origin->plane;
const float vx = ViewPos.X;
const float vy = ViewPos.Y;
const float vz = ViewPos.Z;
const float z = sp->Texheight;
const float tz = (z - vz);
// Draw to some far away boundary
// This is not drawn as larger strips because it causes visual glitches.
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
for (float x = -32768 + vx; x<32768 + vx; x += 4096)
{
for (float y = -32768 + vy; y<32768 + vy; y += 4096)
{
ptr->Set(x, z, y, x / 64, -y / 64);
ptr++;
ptr->Set(x + 4096, z, y, x / 64 + 64, -y / 64);
ptr++;
ptr->Set(x, z, y + 4096, x / 64, -y / 64 - 64);
ptr++;
ptr->Set(x + 4096, z, y + 4096, x / 64 + 64, -y / 64 - 64);
ptr++;
}
}
// fill the gap between the polygon and the true horizon
// Since I can't draw into infinity there can always be a
// small gap
ptr->Set(-32768 + vx, z, -32768 + vy, 512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, -32768 + vy, 512.f, tz);
ptr++;
ptr->Set(-32768 + vx, z, 32768 + vy, -512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, 32768 + vy, -512.f, tz);
ptr++;
ptr->Set(32768 + vx, z, 32768 + vy, 512.f, 0);
ptr++;
ptr->Set(32768 + vx, vz, 32768 + vy, 512.f, tz);
ptr++;
ptr->Set(32768 + vx, z, -32768 + vy, -512.f, 0);
ptr++;
ptr->Set(32768 + vx, vz, -32768 + vy, -512.f, tz);
ptr++;
ptr->Set(-32768 + vx, z, -32768 + vy, 512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, -32768 + vy, 512.f, tz);
ptr++;
vcount = GLRenderer->mVBO->GetCount(ptr, &voffset) - 10;
}
//-----------------------------------------------------------------------------
//
// GLHorizonPortal::DrawContents
@ -1079,11 +1139,10 @@ void GLHorizonPortal::DrawContents()
{
PortalAll.Clock();
GLSectorPlane * sp=&origin->plane;
FMaterial * gltexture;
PalEntry color;
float z;
player_t * player=&players[consoleplayer];
GLSectorPlane * sp = &origin->plane;
gltexture=FMaterial::ValidateTexture(sp->texture, false, true);
if (!gltexture)
@ -1095,9 +1154,6 @@ void GLHorizonPortal::DrawContents()
gl_RenderState.SetCameraPos(ViewPos.X, ViewPos.Y, ViewPos.Z);
z=sp->Texheight;
if (gltexture && gltexture->tex->isFullbright())
{
// glowing textures are always drawn full bright without color
@ -1120,58 +1176,11 @@ void GLHorizonPortal::DrawContents()
gl_RenderState.Apply();
float vx= ViewPos.X;
float vy= ViewPos.Y;
// Draw to some far away boundary
// This is not drawn as larher strips because it causes visual glitches.
for(float x=-32768+vx; x<32768+vx; x+=4096)
for (unsigned i = 0; i < vcount; i += 4)
{
for(float y=-32768+vy; y<32768+vy;y+=4096)
{
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(x, z, y, x / 64, -y / 64);
ptr++;
ptr->Set(x + 4096, z, y, x / 64 + 64, -y / 64);
ptr++;
ptr->Set(x, z, y + 4096, x / 64, -y / 64 - 64);
ptr++;
ptr->Set(x + 4096, z, y + 4096, x / 64 + 64, -y / 64 - 64);
ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
glDrawArrays(GL_TRIANGLE_STRIP, voffset + i, 4);
}
}
float vz= ViewPos.Z;
float tz=(z-vz);///64.0f;
// fill the gap between the polygon and the true horizon
// Since I can't draw into infinity there can always be a
// small gap
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(-32768 + vx, z, -32768 + vy, 512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, -32768 + vy, 512.f, tz);
ptr++;
ptr->Set(-32768 + vx, z, 32768 + vy, -512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, 32768 + vy, -512.f, tz);
ptr++;
ptr->Set(32768 + vx, z, 32768 + vy, 512.f, 0);
ptr++;
ptr->Set(32768 + vx, vz, 32768 + vy, 512.f, tz);
ptr++;
ptr->Set(32768 + vx, z, -32768 + vy, -512.f, 0);
ptr++;
ptr->Set(32768 + vx, vz, -32768 + vy, -512.f, tz);
ptr++;
ptr->Set(-32768 + vx, z, -32768 + vy, 512.f, 0);
ptr++;
ptr->Set(-32768 + vx, vz, -32768 + vy, 512.f, tz);
ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
glDrawArrays(GL_TRIANGLE_STRIP, voffset + vcount, 10);
gl_RenderState.EnableTextureMatrix(false);
PortalAll.Unclock();

9
src/gl/scene/gl_portal.h
View file

@ -365,6 +365,8 @@ public:
struct GLHorizonPortal : public GLPortal
{
GLHorizonInfo * origin;
unsigned int voffset;
unsigned int vcount;
friend struct GLEEHorizonPortal;
protected:
@ -376,12 +378,7 @@ protected:
public:
GLHorizonPortal(GLHorizonInfo * pt, bool local = false)
: GLPortal(local)
{
origin=pt;
}
GLHorizonPortal(GLHorizonInfo * pt, bool local = false);
};
struct GLEEHorizonPortal : public GLPortal