OrdinaryMagician/vkdoom_m
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Capped sky rendering

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This commit is contained in:
Magnus Norddahl 2016-12-03 06:58:06 +01:00
commit dbacb75617
6 changed files with 56 additions and 28 deletions
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27
src/r_poly_sky.cpp
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@ -66,20 +66,24 @@ void PolySkyDome::Render(const TriMatrix &worldToClip)
RenderCapColorRow(args, frontskytex, 0, false);
RenderCapColorRow(args, frontskytex, rc, true);
uint32_t topcapcolor = frontskytex->GetSkyCapColor(false);
uint32_t bottomcapcolor = frontskytex->GetSkyCapColor(true);
for (int i = 1; i <= mRows; i++)
{
RenderRow(args, i);
RenderRow(args, rc + i);
RenderRow(args, i, topcapcolor);
RenderRow(args, rc + i, bottomcapcolor);
}
}
void PolySkyDome::RenderRow(PolyDrawArgs &args, int row)
void PolySkyDome::RenderRow(PolyDrawArgs &args, int row, uint32_t capcolor)
{
args.vinput = &mVertices[mPrimStart[row]];
args.vcount = mPrimStart[row + 1] - mPrimStart[row];
args.mode = TriangleDrawMode::Strip;
args.ccw = false;
PolyTriangleDrawer::draw(args, TriDrawVariant::DrawNormal, TriBlendMode::Copy);
args.uniforms.color = capcolor;
PolyTriangleDrawer::draw(args, TriDrawVariant::DrawNormal, TriBlendMode::Skycap);
}
void PolySkyDome::RenderCapColorRow(PolyDrawArgs &args, FTexture *skytex, int row, bool bottomCap)
@ -129,18 +133,6 @@ void PolySkyDome::CreateSkyHemisphere(bool zflip)
}
}
TriVertex PolySkyDome::SetVertex(float xx, float yy, float zz, float uu, float vv)
{
TriVertex v;
v.x = xx;
v.y = yy;
v.z = zz;
v.w = 1.0f;
v.varying[0] = uu;
v.varying[1] = vv;
return v;
}
TriVertex PolySkyDome::SetVertexXYZ(float xx, float yy, float zz, float uu, float vv)
{
TriVertex v;
@ -166,7 +158,6 @@ void PolySkyDome::SkyVertex(int r, int c, bool zflip)
float z = (!zflip) ? scale * height : -scale * height;
float u, v;
//uint32_t color = r == 0 ? 0xffffff : 0xffffffff;
// And the texture coordinates.
if (!zflip) // Flipped Y is for the lower hemisphere.
@ -184,6 +175,6 @@ void PolySkyDome::SkyVertex(int r, int c, bool zflip)
// And finally the vertex.
TriVertex vert;
vert = SetVertexXYZ(-pos.X, z - 1.f, pos.Y, u * 4.0f, v * 1.2f + 0.5f/*, color*/);
vert = SetVertexXYZ(-pos.X, z - 1.f, pos.Y, u * 4.0f, v * 1.2f - 0.5f);
mVertices.Push(vert);
}