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- fixed: The model matrix must be disabled right after rendering the sky dome, so that it won't get used for the skyfog layer.

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This commit is contained in:
Christoph Oelckers 2016-08-14 20:11:46 +02:00
parent 4e8a96aa0e
commit e03696a6c9
1 changed files with 22 additions and 22 deletions
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44
src/gl/scene/gl_skydome.cpp
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@ -119,7 +119,7 @@ void FSkyVertexBuffer::SkyVertex(int r, int c, bool zflip)
static const FAngle maxSideAngle = 60.f;
static const float scale = 10000.;
FAngle topAngle= (c / (float)mColumns * 360.f);
FAngle topAngle = (c / (float)mColumns * 360.f);
FAngle sideAngle = maxSideAngle * (mRows - r) / mRows;
float height = sideAngle.Sin();
float realRadius = scale * sideAngle.Cos();
@ -127,13 +127,13 @@ void FSkyVertexBuffer::SkyVertex(int r, int c, bool zflip)
float z = (!zflip) ? scale * height : -scale * height;
FSkyVertex vert;
vert.color = r == 0 ? 0xffffff : 0xffffffff;
// And the texture coordinates.
if(!zflip) // Flipped Y is for the lower hemisphere.
if (!zflip) // Flipped Y is for the lower hemisphere.
{
vert.u = (-c / (float)mColumns) ;
vert.u = (-c / (float)mColumns);
vert.v = (r / (float)mRows);
}
else
@ -142,7 +142,7 @@ void FSkyVertexBuffer::SkyVertex(int r, int c, bool zflip)
vert.v = 1.0f + ((mRows - r) / (float)mRows);
}
if (r != 4) z+=300;
if (r != 4) z += 300;
// And finally the vertex.
vert.x = -pos.X; // Doom mirrors the sky vertically!
vert.y = z - 1.f;
@ -194,21 +194,21 @@ void FSkyVertexBuffer::CreateDome()
// the first thing we put into the buffer is the fog layer object which is just 4 triangles around the viewpoint.
mVertices.Reserve(12);
mVertices[0].Set( 1.0f, 1.0f, -1.0f);
mVertices[1].Set( 1.0f, -1.0f, -1.0f);
mVertices[2].Set(-1.0f, 0.0f, -1.0f);
mVertices[0].Set(1.0f, 1.0f, -1.0f);
mVertices[1].Set(1.0f, -1.0f, -1.0f);
mVertices[2].Set(-1.0f, 0.0f, -1.0f);
mVertices[3].Set( 1.0f, 1.0f, -1.0f);
mVertices[4].Set( 1.0f, -1.0f, -1.0f);
mVertices[5].Set( 0.0f, 0.0f, 1.0f);
mVertices[3].Set(1.0f, 1.0f, -1.0f);
mVertices[4].Set(1.0f, -1.0f, -1.0f);
mVertices[5].Set(0.0f, 0.0f, 1.0f);
mVertices[6].Set(-1.0f, 0.0f, -1.0f);
mVertices[7].Set( 1.0f, 1.0f, -1.0f);
mVertices[8].Set( 0.0f, 0.0f, 1.0f);
mVertices[7].Set(1.0f, 1.0f, -1.0f);
mVertices[8].Set(0.0f, 0.0f, 1.0f);
mVertices[9].Set(1.0f, -1.0f, -1.0f);
mVertices[10].Set(-1.0f, 0.0f, -1.0f);
mVertices[11].Set( 0.0f, 0.0f, 1.0f);
mVertices[11].Set(0.0f, 0.0f, 1.0f);
mColumns = 128;
mRows = 4;
@ -358,7 +358,7 @@ void RenderDome(FMaterial * tex, float x_offset, float y_offset, bool mirror, in
gl_RenderState.EnableModelMatrix(true);
gl_RenderState.mModelMatrix.loadIdentity();
gl_RenderState.mModelMatrix.rotate(-180.0f+x_offset, 0.f, 1.f, 0.f);
gl_RenderState.mModelMatrix.rotate(-180.0f + x_offset, 0.f, 1.f, 0.f);
float xscale = texw < 1024.f ? floor(1024.f / float(texw)) : 1.f;
float yscale = 1.f;
@ -366,18 +366,18 @@ void RenderDome(FMaterial * tex, float x_offset, float y_offset, bool mirror, in
{
// smaller sky textures must be tiled. We restrict it to 128 sky pixels, though
gl_RenderState.mModelMatrix.translate(0.f, -1250.f, 0.f);
gl_RenderState.mModelMatrix.scale(1.f, 128/230.f, 1.f);
gl_RenderState.mModelMatrix.scale(1.f, 128 / 230.f, 1.f);
yscale = 128 / texh; // intentionally left as integer.
}
else if (texh < 200)
{
gl_RenderState.mModelMatrix.translate(0.f, -1250.f, 0.f);
gl_RenderState.mModelMatrix.scale(1.f, texh/230.f, 1.f);
gl_RenderState.mModelMatrix.scale(1.f, texh / 230.f, 1.f);
}
else if (texh <= 240)
{
gl_RenderState.mModelMatrix.translate(0.f, (200 - texh + tex->tex->SkyOffset + skyoffset)*skyoffsetfactor, 0.f);
gl_RenderState.mModelMatrix.scale(1.f, 1.f + ((texh-200.f)/200.f) * 1.17f, 1.f);
gl_RenderState.mModelMatrix.scale(1.f, 1.f + ((texh - 200.f) / 200.f) * 1.17f, 1.f);
}
else
{
@ -387,12 +387,13 @@ void RenderDome(FMaterial * tex, float x_offset, float y_offset, bool mirror, in
}
gl_RenderState.EnableTextureMatrix(true);
gl_RenderState.mTextureMatrix.loadIdentity();
gl_RenderState.mTextureMatrix.scale(mirror? -xscale : xscale, yscale, 1.f);
gl_RenderState.mTextureMatrix.scale(mirror ? -xscale : xscale, yscale, 1.f);
gl_RenderState.mTextureMatrix.translate(1.f, y_offset / texh, 1.f);
}
GLRenderer->mSkyVBO->RenderDome(tex, mode);
gl_RenderState.EnableTextureMatrix(false);
gl_RenderState.EnableModelMatrix(false);
}
@ -493,7 +494,7 @@ void GLSkyPortal::DrawContents()
bool oldClamp = gl_RenderState.SetDepthClamp(true);
gl_MatrixStack.Push(gl_RenderState.mViewMatrix);
GLRenderer->SetupView(0, 0, 0, ViewAngle, !!(MirrorFlag&1), !!(PlaneMirrorFlag&1));
GLRenderer->SetupView(0, 0, 0, ViewAngle, !!(MirrorFlag & 1), !!(PlaneMirrorFlag & 1));
gl_RenderState.SetVertexBuffer(GLRenderer->mSkyVBO);
if (origin->texture[0] && origin->texture[0]->tex->gl_info.bSkybox)
@ -536,6 +537,5 @@ void GLSkyPortal::DrawContents()
gl_RenderState.ApplyMatrices();
glset.lightmode = oldlightmode;
gl_RenderState.SetDepthClamp(oldClamp);
gl_RenderState.EnableModelMatrix(false);
}