void FMD3Model::RenderFrame(FTexture * skin, int frameno, int cm, int translation)
{
if (frameno>=numFrames) return;
MD3Frame * frame = &frames[frameno];
// I can't confirm correctness of this because no model I have tested uses this information
// glMatrixMode(GL_MODELVIEW);
// glTranslatef(frame->origin[0], frame->origin[1], frame->origin[2]);
for(int i=0;i<numSurfaces;i++)
{
MD3Surface * surf = &surfaces[i];
// [BB] In case no skin is specified via MODELDEF, check if the MD3 has a skin for the current surface.
// Note: Each surface may have a different skin.
FTexture *surfaceSkin = skin;
if (!surfaceSkin)
{
if (surf->numSkins==0) return;
surfaceSkin = surf->skins[0];
if (!surfaceSkin) return;
}
FMaterial * tex = FMaterial::ValidateTexture(surfaceSkin);
tex->Bind(cm, 0, translation);
RenderTriangles(surf, surf->vertices + frameno * surf->numVertices);
}
}
void FMD3Model::RenderFrame(FTexture * skin, int frameno, int cm, Matrix3x4 *modeltoworld, int translation)
{
if (frameno>=numFrames) return;
MD3Frame * frame = &frames[frameno];
// I can't confirm correctness of this because no model I have tested uses this information
// gl.MatrixMode(GL_MODELVIEW);
// gl.Translatef(frame->origin[0], frame->origin[1], frame->origin[2]);
for(int i=0;i<numSurfaces;i++)
{
MD3Surface * surf = &surfaces[i];
if (!skin)
{
if (surf->numSkins==0) return;
skin = surf->skins[0];
if (!skin) return;
}
FMaterial * tex = FMaterial::ValidateTexture(skin);
tex->Bind(cm, 0, translation);
RenderTriangles(surf, surf->vertices + frameno * surf->numVertices, modeltoworld);
}
}
FVelocityDrawingPolicy::FVelocityDrawingPolicy(
const FVertexFactory* InVertexFactory,
const FMaterialRenderProxy* InMaterialRenderProxy,
const FMaterial& InMaterialResource,
ERHIFeatureLevel::Type InFeatureLevel
)
: FMeshDrawingPolicy(InVertexFactory,InMaterialRenderProxy,InMaterialResource)
{
const FMaterialShaderMap* MaterialShaderIndex = InMaterialResource.GetRenderingThreadShaderMap();
const FMeshMaterialShaderMap* MeshShaderIndex = MaterialShaderIndex->GetMeshShaderMap(InVertexFactory->GetType());
HullShader = NULL;
DomainShader = NULL;
const EMaterialTessellationMode MaterialTessellationMode = InMaterialResource.GetTessellationMode();
if (RHISupportsTessellation(GShaderPlatformForFeatureLevel[InFeatureLevel])
&& InVertexFactory->GetType()->SupportsTessellationShaders()
&& MaterialTessellationMode != MTM_NoTessellation)
{
bool HasHullShader = MeshShaderIndex->HasShader(&FVelocityHS::StaticType);
bool HasDomainShader = MeshShaderIndex->HasShader(&FVelocityDS::StaticType);
HullShader = HasHullShader ? MeshShaderIndex->GetShader<FVelocityHS>() : NULL;
DomainShader = HasDomainShader ? MeshShaderIndex->GetShader<FVelocityDS>() : NULL;
}
bool HasVertexShader = MeshShaderIndex->HasShader(&FVelocityVS::StaticType);
VertexShader = HasVertexShader ? MeshShaderIndex->GetShader<FVelocityVS>() : NULL;
bool HasPixelShader = MeshShaderIndex->HasShader(&FVelocityPS::StaticType);
PixelShader = HasPixelShader ? MeshShaderIndex->GetShader<FVelocityPS>() : NULL;
}
void FGLRenderer::FillSimplePoly(FTexture *texture, FVector2 *points, int npoints,
double originx, double originy, double scalex, double scaley,
angle_t rotation, FDynamicColormap *colormap, int lightlevel)
{
if (npoints < 3)
{ // This is no polygon.
return;
}
FMaterial *gltexture = FMaterial::ValidateTexture(texture);
if (gltexture == NULL)
{
return;
}
FColormap cm;
cm = colormap;
lightlevel = gl_CalcLightLevel(lightlevel, 0, true);
PalEntry pe = gl_CalcLightColor(lightlevel, cm.LightColor, cm.blendfactor, true);
glColor3ub(pe.r, pe.g, pe.b);
gltexture->Bind(cm.colormap);
int i;
float rot = float(rotation * M_PI / float(1u << 31));
bool dorotate = rot != 0;
float cosrot = cos(rot);
float sinrot = sin(rot);
//float yoffs = GatheringWipeScreen ? 0 : LBOffset;
float uscale = float(1.f / (texture->GetScaledWidth() * scalex));
float vscale = float(1.f / (texture->GetScaledHeight() * scaley));
if (gltexture->tex->bHasCanvas)
{
vscale = 0 - vscale;
}
float ox = float(originx);
float oy = float(originy);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
for (i = 0; i < npoints; ++i)
{
float u = points[i].X - 0.5f - ox;
float v = points[i].Y - 0.5f - oy;
if (dorotate)
{
float t = u;
u = t * cosrot - v * sinrot;
v = v * cosrot + t * sinrot;
}
glTexCoord2f(u * uscale, v * vscale);
glVertex3f(points[i].X, points[i].Y /* + yoffs */, 0);
}
glEnd();
}
void FGLInterface::PrecacheTexture(FTexture *tex, int cache)
{
if (cache & (FTextureManager::HIT_Wall | FTextureManager::HIT_Flat | FTextureManager::HIT_Sky))
{
FMaterial * gltex = FMaterial::ValidateTexture(tex, false);
if (gltex) gltex->Precache();
}
}
FTransientDecalRenderData(FDeferredDecalProxy* InDecalProxy)
: DecalProxy(InDecalProxy)
{
MaterialProxy = InDecalProxy->DecalMaterial->GetRenderProxy(InDecalProxy->bOwnerSelected);
MaterialResource = MaterialProxy->GetMaterial(GRHIFeatureLevel);
bHasNormal = MaterialResource->HasNormalConnected();
DecalBlendMode = ComputeFinalDecalBlendMode((EDecalBlendMode)MaterialResource->GetDecalBlendMode(), bHasNormal);
check(MaterialProxy && MaterialResource);
}
unsigned char *FGLRenderer::GetTextureBuffer(FTexture *tex, int &w, int &h)
{
FMaterial * gltex = FMaterial::ValidateTexture(tex);
if (gltex)
{
return gltex->CreateTexBuffer(CM_DEFAULT, 0, w, h);
}
return NULL;
}
class FMesh* FPrimitiveBuilder::CreateMesh(class FTexture* Texture, const glm::vec4& Colour, bool bUseIndexBuffer)
{
FMesh* Mesh = new FMesh(bUseIndexBuffer);
FMaterial* Material = new FMaterial(Texture);
Material->SetDiffuse(Colour);
// TODO: Might need to fix this or add more stuff. check it later
ProceduralModel->Meshes.push_back(Mesh);
ProceduralModel->Materials.push_back(Material);
Mesh->SetMaterial(Material);
return Mesh;
}
VulkanDescriptorSet *VkHardwareTexture::GetDescriptorSet(const FMaterialState &state)
{
FMaterial *mat = state.mMaterial;
FTexture *tex = state.mMaterial->tex;
int clampmode = state.mClampMode;
int translation = state.mTranslation;
if (tex->UseType == ETextureType::SWCanvas) clampmode = CLAMP_NOFILTER;
if (tex->isHardwareCanvas()) clampmode = CLAMP_CAMTEX;
else if ((tex->isWarped() || tex->shaderindex >= FIRST_USER_SHADER) && clampmode <= CLAMP_XY) clampmode = CLAMP_NONE;
// Textures that are already scaled in the texture lump will not get replaced by hires textures.
int flags = state.mMaterial->isExpanded() ? CTF_Expand : (gl_texture_usehires && !tex->isScaled() && clampmode <= CLAMP_XY) ? CTF_CheckHires : 0;
if (tex->isHardwareCanvas()) static_cast<FCanvasTexture*>(tex)->NeedUpdate();
for (auto &set : mDescriptorSets)
{
if (set.descriptor && set.clampmode == clampmode && set.flags == flags) return set.descriptor.get();
}
int numLayers = mat->GetLayers();
auto fb = GetVulkanFrameBuffer();
auto descriptor = fb->GetRenderPassManager()->AllocateTextureDescriptorSet(numLayers);
descriptor->SetDebugName("VkHardwareTexture.mDescriptorSets");
VulkanSampler *sampler = fb->GetSamplerManager()->Get(clampmode);
WriteDescriptors update;
update.addCombinedImageSampler(descriptor.get(), 0, GetImage(tex, translation, flags)->View.get(), sampler, mImage.Layout);
for (int i = 1; i < numLayers; i++)
{
FTexture *layer;
auto systex = static_cast<VkHardwareTexture*>(mat->GetLayer(i, 0, &layer));
update.addCombinedImageSampler(descriptor.get(), i, systex->GetImage(layer, 0, mat->isExpanded() ? CTF_Expand : 0)->View.get(), sampler, systex->mImage.Layout);
}
update.updateSets(fb->device);
mDescriptorSets.emplace_back(clampmode, flags, std::move(descriptor));
return mDescriptorSets.back().descriptor.get();
}
FDepthDrawingPolicy::FDepthDrawingPolicy(
const FVertexFactory* InVertexFactory,
const FMaterialRenderProxy* InMaterialRenderProxy,
const FMaterial& InMaterialResource,
bool bIsTwoSided,
ERHIFeatureLevel::Type InFeatureLevel
):
FMeshDrawingPolicy(InVertexFactory,InMaterialRenderProxy,InMaterialResource,false,/*bInTwoSidedOverride=*/ bIsTwoSided)
{
// The primitive needs to be rendered with the material's pixel and vertex shaders if it is masked
bNeedsPixelShader = false;
if (InMaterialResource.IsMasked())
{
bNeedsPixelShader = true;
PixelShader = InMaterialResource.GetShader<FDepthOnlyPS>(InVertexFactory->GetType());
}
else
{
PixelShader = NULL;
}
const EMaterialTessellationMode TessellationMode = InMaterialResource.GetTessellationMode();
VertexShader = NULL;
HullShader = NULL;
DomainShader = NULL;
if (RHISupportsTessellation(GShaderPlatformForFeatureLevel[InFeatureLevel])
&& InVertexFactory->GetType()->SupportsTessellationShaders()
&& TessellationMode != MTM_NoTessellation)
{
VertexShader = InMaterialResource.GetShader<TDepthOnlyVS<false> >(VertexFactory->GetType());
HullShader = InMaterialResource.GetShader<FDepthOnlyHS>(VertexFactory->GetType());
DomainShader = InMaterialResource.GetShader<FDepthOnlyDS>(VertexFactory->GetType());
}
else
{
VertexShader = InMaterialResource.GetShader<TDepthOnlyVS<false> >(InVertexFactory->GetType());
}
}
void FMD3Model::RenderFrameInterpolated(FTexture * skin, int frameno, int frameno2, double inter, int cm, int translation)
{
if (frameno>=numFrames || frameno2>=numFrames) return;
for(int i=0;i<numSurfaces;i++)
{
MD3Surface * surf = &surfaces[i];
// [BB] In case no skin is specified via MODELDEF, check if the MD3 has a skin for the current surface.
// Note: Each surface may have a different skin.
FTexture *surfaceSkin = skin;
if (!surfaceSkin)
{
if (surf->numSkins==0) return;
surfaceSkin = surf->skins[0];
if (!surfaceSkin) return;
}
FMaterial * tex = FMaterial::ValidateTexture(surfaceSkin);
tex->Bind(cm, 0, translation);
MD3Vertex* verticesInterpolated = new MD3Vertex[surfaces[i].numVertices];
MD3Vertex* vertices1 = surf->vertices + frameno * surf->numVertices;
MD3Vertex* vertices2 = surf->vertices + frameno2 * surf->numVertices;
// [BB] Calculate the interpolated vertices by linear interpolation.
for( int k = 0; k < surf->numVertices; k++ )
{
verticesInterpolated[k].x = (1-inter)*vertices1[k].x+ (inter)*vertices2[k].x;
verticesInterpolated[k].y = (1-inter)*vertices1[k].y+ (inter)*vertices2[k].y;
verticesInterpolated[k].z = (1-inter)*vertices1[k].z+ (inter)*vertices2[k].z;
// [BB] Apparently RenderTriangles doesn't use nx, ny, nz, so don't interpolate them.
}
RenderTriangles(surf, verticesInterpolated);
delete[] verticesInterpolated;
}
}
void FMD3Model::RenderFrameInterpolated(FTexture * skin, int frameno, int frameno2, double inter, int cm, Matrix3x4 *modeltoworld, int translation)
{
if (frameno>=numFrames || frameno2>=numFrames) return;
for(int i=0;i<numSurfaces;i++)
{
MD3Surface * surf = &surfaces[i];
if (!skin)
{
if (surf->numSkins==0) return;
skin = surf->skins[0];
if (!skin) return;
}
FMaterial * tex = FMaterial::ValidateTexture(skin);
tex->Bind(cm, 0, translation);
MD3Vertex* verticesInterpolated = new MD3Vertex[surfaces[i].numVertices];
MD3Vertex* vertices1 = surf->vertices + frameno * surf->numVertices;
MD3Vertex* vertices2 = surf->vertices + frameno2 * surf->numVertices;
// [BB] Calculate the interpolated vertices by linear interpolation.
for( int k = 0; k < surf->numVertices; k++ )
{
verticesInterpolated[k].x = (1-inter)*vertices1[k].x+ (inter)*vertices2[k].x;
verticesInterpolated[k].y = (1-inter)*vertices1[k].y+ (inter)*vertices2[k].y;
verticesInterpolated[k].z = (1-inter)*vertices1[k].z+ (inter)*vertices2[k].z;
// [BB] Apparently RenderTriangles doesn't use nx, ny, nz, so don't interpolate them.
}
RenderTriangles(surf, verticesInterpolated, modeltoworld);
delete[] verticesInterpolated;
}
}
void FGLRenderer::RenderTextureView(FCanvasTexture *tex, AActor *Viewpoint, double FOV)
{
// This doesn't need to clear the fake flat cache. It can be shared between camera textures and the main view of a scene.
FMaterial * gltex = FMaterial::ValidateTexture(tex, false);
int width = gltex->TextureWidth();
int height = gltex->TextureHeight();
StartOffscreen();
BindToFrameBuffer(gltex);
IntRect bounds;
bounds.left = bounds.top = 0;
bounds.width = FHardwareTexture::GetTexDimension(gltex->GetWidth());
bounds.height = FHardwareTexture::GetTexDimension(gltex->GetHeight());
FRenderViewpoint texvp;
RenderViewpoint(texvp, Viewpoint, &bounds, FOV, (float)width / height, (float)width / height, false, false);
EndOffscreen();
tex->SetUpdated(true);
static_cast<OpenGLFrameBuffer*>(screen)->camtexcount++;
}
void FGLInterface::RenderTextureView (FCanvasTexture *tex, AActor *Viewpoint, int FOV)
{
FMaterial * gltex = FMaterial::ValidateTexture(tex, false);
int width = gltex->TextureWidth();
int height = gltex->TextureHeight();
gl_fixedcolormap=CM_DEFAULT;
gl_RenderState.SetFixedColormap(CM_DEFAULT);
if (gl.legacyMode)
{
// In legacy mode, fail if the requested texture is too large.
if (gltex->GetWidth() > screen->GetWidth() || gltex->GetHeight() > screen->GetHeight()) return;
glFlush();
}
else
{
GLRenderer->StartOffscreen();
gltex->BindToFrameBuffer();
}
GL_IRECT bounds;
bounds.left=bounds.top=0;
bounds.width=FHardwareTexture::GetTexDimension(gltex->GetWidth());
bounds.height=FHardwareTexture::GetTexDimension(gltex->GetHeight());
GLRenderer->RenderViewpoint(Viewpoint, &bounds, FOV, (float)width/height, (float)width/height, false, false);
if (gl.legacyMode)
{
glFlush();
gl_RenderState.SetMaterial(gltex, 0, 0, -1, false);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, bounds.width, bounds.height);
}
else
{
GLRenderer->EndOffscreen();
}
tex->SetUpdated();
camtexcount++;
}
//==========================================================================
//
// Draw the plane segment into the gap
//
//==========================================================================
void FDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, bool ceiling)
{
GLSectorPlane plane;
int lightlevel;
FColormap Colormap;
FMaterial * gltexture;
plane.GetFromSector(sec, ceiling);
gltexture=FMaterial::ValidateTexture(plane.texture, true);
if (!gltexture) return;
if (gl_fixedcolormap)
{
Colormap.GetFixedColormap();
lightlevel=255;
}
else
{
Colormap=sec->ColorMap;
if (gltexture->tex->isFullbright())
{
Colormap.LightColor.r = Colormap.LightColor.g = Colormap.LightColor.b = 0xff;
lightlevel=255;
}
else lightlevel=abs(ceiling? sec->GetCeilingLight() : sec->GetFloorLight());
}
int rel = getExtraLight();
gl_SetColor(lightlevel, rel, &Colormap, 1.0f);
gl_SetFog(lightlevel, rel, &Colormap, false);
gltexture->Bind(Colormap.colormap);
float fviewx = FIXED2FLOAT(viewx);
float fviewy = FIXED2FLOAT(viewy);
float fviewz = FIXED2FLOAT(viewz);
gl_RenderState.Apply();
bool pushed = gl_SetPlaneTextureRotation(&plane, gltexture);
glBegin(GL_TRIANGLE_FAN);
float prj_fac1 = (planez-fviewz)/(ws->z1-fviewz);
float prj_fac2 = (planez-fviewz)/(ws->z2-fviewz);
float px1 = fviewx + prj_fac1 * (ws->x1-fviewx);
float py1 = fviewy + prj_fac1 * (ws->y1-fviewy);
float px2 = fviewx + prj_fac2 * (ws->x1-fviewx);
float py2 = fviewy + prj_fac2 * (ws->y1-fviewy);
float px3 = fviewx + prj_fac2 * (ws->x2-fviewx);
float py3 = fviewy + prj_fac2 * (ws->y2-fviewy);
float px4 = fviewx + prj_fac1 * (ws->x2-fviewx);
float py4 = fviewy + prj_fac1 * (ws->y2-fviewy);
glTexCoord2f(px1 / 64, -py1 / 64);
glVertex3f(px1, planez, py1);
glTexCoord2f(px2 / 64, -py2 / 64);
glVertex3f(px2, planez, py2);
glTexCoord2f(px3 / 64, -py3 / 64);
glVertex3f(px3, planez, py3);
glTexCoord2f(px4 / 64, -py4 / 64);
glVertex3f(px4, planez, py4);
glEnd();
if (pushed)
{
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
}
void FGLRenderer::DrawTexture(FTexture *img, DCanvas::DrawParms &parms)
{
double xscale = parms.destwidth / parms.texwidth;
double yscale = parms.destheight / parms.texheight;
double x = parms.x - parms.left * xscale;
double y = parms.y - parms.top * yscale;
double w = parms.destwidth;
double h = parms.destheight;
float u1, v1, u2, v2, r, g, b;
float light = 1.f;
FMaterial * gltex = FMaterial::ValidateTexture(img);
const PatchTextureInfo * pti;
if (parms.colorOverlay)
{
// Right now there's only black. Should be implemented properly later
light = 1.f - APART(parms.colorOverlay)/255.f;
}
if (!img->bHasCanvas)
{
if (!parms.alphaChannel)
{
int translation = 0;
if (parms.remap != NULL && !parms.remap->Inactive)
{
GLTranslationPalette * pal = static_cast<GLTranslationPalette*>(parms.remap->GetNative());
if (pal) translation = -pal->GetIndex();
}
pti = gltex->BindPatch(CM_DEFAULT, translation);
}
else
{
// This is an alpha texture
pti = gltex->BindPatch(CM_SHADE, 0);
}
if (!pti) return;
u1 = pti->GetUL();
v1 = pti->GetVT();
u2 = pti->GetUR();
v2 = pti->GetVB();
}
else
{
gltex->Bind(CM_DEFAULT, 0, 0);
u2=1.f;
v2=-1.f;
u1 = v1 = 0.f;
gl_RenderState.SetTextureMode(TM_OPAQUE);
}
if (parms.flipX)
{
float temp = u1;
u1 = u2;
u2 = temp;
}
if (parms.windowleft > 0 || parms.windowright < parms.texwidth)
{
x += parms.windowleft * xscale;
w -= (parms.texwidth - parms.windowright + parms.windowleft) * xscale;
u1 = float(u1 + parms.windowleft / parms.texwidth);
u2 = float(u2 - (parms.texwidth - parms.windowright) / parms.texwidth);
}
if (parms.style.Flags & STYLEF_ColorIsFixed)
{
r = RPART(parms.fillcolor)/255.0f;
g = GPART(parms.fillcolor)/255.0f;
b = BPART(parms.fillcolor)/255.0f;
}
else
{
r = g = b = light;
}
// scissor test doesn't use the current viewport for the coordinates, so use real screen coordinates
int btm = (SCREENHEIGHT - screen->GetHeight()) / 2;
btm = SCREENHEIGHT - btm;
gl.Enable(GL_SCISSOR_TEST);
int space = (static_cast<OpenGLFrameBuffer*>(screen)->GetTrueHeight()-screen->GetHeight())/2;
gl.Scissor(parms.lclip, btm - parms.dclip + space, parms.rclip - parms.lclip, parms.dclip - parms.uclip);
gl_SetRenderStyle(parms.style, !parms.masked, false);
if (img->bHasCanvas)
{
gl_RenderState.SetTextureMode(TM_OPAQUE);
}
gl.Color4f(r, g, b, FIXED2FLOAT(parms.alpha));
gl_RenderState.EnableAlphaTest(false);
gl_RenderState.Apply();
gl.Begin(GL_TRIANGLE_STRIP);
gl.TexCoord2f(u1, v1);
glVertex2d(x, y);
gl.TexCoord2f(u1, v2);
glVertex2d(x, y + h);
gl.TexCoord2f(u2, v1);
glVertex2d(x + w, y);
gl.TexCoord2f(u2, v2);
glVertex2d(x + w, y + h);
gl.End();
gl_RenderState.EnableAlphaTest(true);
gl.Scissor(0, 0, screen->GetWidth(), screen->GetHeight());
gl.Disable(GL_SCISSOR_TEST);
gl_RenderState.SetTextureMode(TM_MODULATE);
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
gl_RenderState.BlendEquation(GL_FUNC_ADD);
}
static void RenderBox(FTextureID texno, FMaterial * gltex, float x_offset, int CM_Index, bool sky2)
{
FSkyBox * sb = static_cast<FSkyBox*>(gltex->tex);
int faces;
FMaterial * tex;
if (!sky2)
glRotatef(-180.0f+x_offset, glset.skyrotatevector.X, glset.skyrotatevector.Z, glset.skyrotatevector.Y);
else
glRotatef(-180.0f+x_offset, glset.skyrotatevector2.X, glset.skyrotatevector2.Z, glset.skyrotatevector2.Y);
glColor3f(R, G ,B);
if (sb->faces[5])
{
faces=4;
// north
tex = FMaterial::ValidateTexture(sb->faces[0]);
tex->Bind(CM_Index, GLT_CLAMPX|GLT_CLAMPY, 0);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(0, 0);
glVertex3f(128.f, 128.f, -128.f);
glTexCoord2f(1, 0);
glVertex3f(-128.f, 128.f, -128.f);
glTexCoord2f(1, 1);
glVertex3f(-128.f, -128.f, -128.f);
glTexCoord2f(0, 1);
glVertex3f(128.f, -128.f, -128.f);
glEnd();
// east
tex = FMaterial::ValidateTexture(sb->faces[1]);
tex->Bind(CM_Index, GLT_CLAMPX|GLT_CLAMPY, 0);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(0, 0);
glVertex3f(-128.f, 128.f, -128.f);
glTexCoord2f(1, 0);
glVertex3f(-128.f, 128.f, 128.f);
glTexCoord2f(1, 1);
glVertex3f(-128.f, -128.f, 128.f);
glTexCoord2f(0, 1);
glVertex3f(-128.f, -128.f, -128.f);
glEnd();
// south
tex = FMaterial::ValidateTexture(sb->faces[2]);
tex->Bind(CM_Index, GLT_CLAMPX|GLT_CLAMPY, 0);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(0, 0);
glVertex3f(-128.f, 128.f, 128.f);
glTexCoord2f(1, 0);
glVertex3f(128.f, 128.f, 128.f);
glTexCoord2f(1, 1);
glVertex3f(128.f, -128.f, 128.f);
glTexCoord2f(0, 1);
glVertex3f(-128.f, -128.f, 128.f);
glEnd();
// west
tex = FMaterial::ValidateTexture(sb->faces[3]);
tex->Bind(CM_Index, GLT_CLAMPX|GLT_CLAMPY, 0);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(0, 0);
glVertex3f(128.f, 128.f, 128.f);
glTexCoord2f(1, 0);
glVertex3f(128.f, 128.f, -128.f);
glTexCoord2f(1, 1);
glVertex3f(128.f, -128.f, -128.f);
glTexCoord2f(0, 1);
glVertex3f(128.f, -128.f, 128.f);
glEnd();
}
else
{
faces=1;
// all 4 sides
tex = FMaterial::ValidateTexture(sb->faces[0]);
tex->Bind(CM_Index, GLT_CLAMPX|GLT_CLAMPY, 0);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(0, 0);
glVertex3f(128.f, 128.f, -128.f);
glTexCoord2f(.25f, 0);
glVertex3f(-128.f, 128.f, -128.f);
glTexCoord2f(.25f, 1);
glVertex3f(-128.f, -128.f, -128.f);
glTexCoord2f(0, 1);
glVertex3f(128.f, -128.f, -128.f);
glEnd();
// east
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(.25f, 0);
glVertex3f(-128.f, 128.f, -128.f);
glTexCoord2f(.5f, 0);
glVertex3f(-128.f, 128.f, 128.f);
glTexCoord2f(.5f, 1);
glVertex3f(-128.f, -128.f, 128.f);
glTexCoord2f(.25f, 1);
glVertex3f(-128.f, -128.f, -128.f);
glEnd();
// south
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(.5f, 0);
glVertex3f(-128.f, 128.f, 128.f);
glTexCoord2f(.75f, 0);
glVertex3f(128.f, 128.f, 128.f);
glTexCoord2f(.75f, 1);
glVertex3f(128.f, -128.f, 128.f);
glTexCoord2f(.5f, 1);
glVertex3f(-128.f, -128.f, 128.f);
glEnd();
// west
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(.75f, 0);
glVertex3f(128.f, 128.f, 128.f);
glTexCoord2f(1, 0);
glVertex3f(128.f, 128.f, -128.f);
glTexCoord2f(1, 1);
glVertex3f(128.f, -128.f, -128.f);
glTexCoord2f(.75f, 1);
glVertex3f(128.f, -128.f, 128.f);
glEnd();
}
// top
tex = FMaterial::ValidateTexture(sb->faces[faces]);
tex->Bind(CM_Index, GLT_CLAMPX|GLT_CLAMPY, 0);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
if (!sb->fliptop)
{
glTexCoord2f(0, 0);
glVertex3f(128.f, 128.f, -128.f);
glTexCoord2f(1, 0);
glVertex3f(-128.f, 128.f, -128.f);
glTexCoord2f(1, 1);
glVertex3f(-128.f, 128.f, 128.f);
glTexCoord2f(0, 1);
glVertex3f(128.f, 128.f, 128.f);
}
else
{
glTexCoord2f(0, 0);
glVertex3f(128.f, 128.f, 128.f);
glTexCoord2f(1, 0);
glVertex3f(-128.f, 128.f, 128.f);
glTexCoord2f(1, 1);
glVertex3f(-128.f, 128.f, -128.f);
glTexCoord2f(0, 1);
glVertex3f(128.f, 128.f, -128.f);
}
glEnd();
// bottom
tex = FMaterial::ValidateTexture(sb->faces[faces+1]);
tex->Bind(CM_Index, GLT_CLAMPX|GLT_CLAMPY, 0);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(0, 0);
glVertex3f(128.f, -128.f, -128.f);
glTexCoord2f(1, 0);
glVertex3f(-128.f, -128.f, -128.f);
glTexCoord2f(1, 1);
glVertex3f(-128.f, -128.f, 128.f);
glTexCoord2f(0, 1);
glVertex3f(128.f, -128.f, 128.f);
glEnd();
}
void FGLInterface::PrecacheSprite(FTexture *tex, SpriteHits &hits)
{
FMaterial * gltex = FMaterial::ValidateTexture(tex, true);
if (gltex) gltex->PrecacheList(hits);
}
void FGLRenderer::DrawTexture(FTexture *img, DrawParms &parms)
{
double xscale = parms.destwidth / parms.texwidth;
double yscale = parms.destheight / parms.texheight;
double x = parms.x - parms.left * xscale;
double y = parms.y - parms.top * yscale;
double w = parms.destwidth;
double h = parms.destheight;
float u1, v1, u2, v2;
int light = 255;
FMaterial * gltex = FMaterial::ValidateTexture(img, false);
if (parms.colorOverlay && (parms.colorOverlay & 0xffffff) == 0)
{
// Right now there's only black. Should be implemented properly later
light = 255 - APART(parms.colorOverlay);
parms.colorOverlay = 0;
}
gl_SetRenderStyle(parms.style, !parms.masked, false);
if (!img->bHasCanvas)
{
int translation = 0;
if (!parms.alphaChannel)
{
if (parms.remap != NULL && !parms.remap->Inactive)
{
GLTranslationPalette * pal = static_cast<GLTranslationPalette*>(parms.remap->GetNative());
if (pal) translation = -pal->GetIndex();
}
}
gl_RenderState.SetMaterial(gltex, CLAMP_XY_NOMIP, translation, -1, !!(parms.style.Flags & STYLEF_RedIsAlpha));
u1 = gltex->GetUL();
v1 = gltex->GetVT();
u2 = gltex->GetUR();
v2 = gltex->GetVB();
}
else
{
gl_RenderState.SetMaterial(gltex, CLAMP_XY_NOMIP, 0, -1, false);
u1 = 0.f;
v1 = 1.f;
u2 = 1.f;
v2 = 0.f;
gl_RenderState.SetTextureMode(TM_OPAQUE);
}
if (parms.flipX)
{
float temp = u1;
u1 = u2;
u2 = temp;
}
if (parms.windowleft > 0 || parms.windowright < parms.texwidth)
{
double wi = MIN(parms.windowright, parms.texwidth);
x += parms.windowleft * xscale;
w -= (parms.texwidth - wi + parms.windowleft) * xscale;
u1 = float(u1 + parms.windowleft / parms.texwidth);
u2 = float(u2 - (parms.texwidth - wi) / parms.texwidth);
}
PalEntry color;
if (parms.style.Flags & STYLEF_ColorIsFixed)
{
color = parms.fillcolor;
}
else
{
color = PalEntry(light, light, light);
}
color.a = (BYTE)(parms.Alpha * 255);
// scissor test doesn't use the current viewport for the coordinates, so use real screen coordinates
int btm = (SCREENHEIGHT - screen->GetHeight()) / 2;
btm = SCREENHEIGHT - btm;
glEnable(GL_SCISSOR_TEST);
int space = (static_cast<OpenGLFrameBuffer*>(screen)->GetTrueHeight()-screen->GetHeight())/2;
glScissor(parms.lclip, btm - parms.dclip + space, parms.rclip - parms.lclip, parms.dclip - parms.uclip);
gl_RenderState.SetColor(color);
gl_RenderState.AlphaFunc(GL_GEQUAL, 0.f);
gl_RenderState.Apply();
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(x, y, 0, u1, v1); ptr++;
ptr->Set(x, y + h, 0, u1, v2); ptr++;
ptr->Set(x + w, y, 0, u2, v1); ptr++;
ptr->Set(x + w, y + h, 0, u2, v2); ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
if (parms.colorOverlay)
{
gl_RenderState.SetTextureMode(TM_MASK);
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
gl_RenderState.BlendEquation(GL_FUNC_ADD);
gl_RenderState.SetColor(PalEntry(parms.colorOverlay));
gl_RenderState.Apply();
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(x, y, 0, u1, v1); ptr++;
ptr->Set(x, y + h, 0, u1, v2); ptr++;
ptr->Set(x + w, y, 0, u2, v1); ptr++;
ptr->Set(x + w, y + h, 0, u2, v2); ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
}
glScissor(0, 0, screen->GetWidth(), screen->GetHeight());
glDisable(GL_SCISSOR_TEST);
gl_RenderState.SetTextureMode(TM_MODULATE);
gl_RenderState.BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
gl_RenderState.BlendEquation(GL_FUNC_ADD);
}
void FMaterialShader::SetParameters(
FRHICommandList& RHICmdList,
const ShaderRHIParamRef ShaderRHI,
const FMaterialRenderProxy* MaterialRenderProxy,
const FMaterial& Material,
const FSceneView& View,
bool bDeferredPass,
ESceneRenderTargetsMode::Type TextureMode)
{
ERHIFeatureLevel::Type FeatureLevel = View.GetFeatureLevel();
FUniformExpressionCache TempUniformExpressionCache;
const FUniformExpressionCache* UniformExpressionCache = &MaterialRenderProxy->UniformExpressionCache[FeatureLevel];
SetParameters(RHICmdList, ShaderRHI, View);
// If the material has cached uniform expressions for selection or hover
// and that is being overridden by show flags in the editor, recache
// expressions for this draw call.
const bool bOverrideSelection =
GIsEditor &&
!View.Family->EngineShowFlags.Selection &&
(MaterialRenderProxy->IsSelected() || MaterialRenderProxy->IsHovered());
if (!bAllowCachedUniformExpressions || !UniformExpressionCache->bUpToDate || bOverrideSelection)
{
FMaterialRenderContext MaterialRenderContext(MaterialRenderProxy, Material, &View);
MaterialRenderProxy->EvaluateUniformExpressions(TempUniformExpressionCache, MaterialRenderContext, &RHICmdList);
UniformExpressionCache = &TempUniformExpressionCache;
}
check(Material.GetRenderingThreadShaderMap());
check(Material.GetRenderingThreadShaderMap()->IsValidForRendering());
check(Material.GetFeatureLevel() == FeatureLevel);
// Validate that the shader is being used for a material that matches the uniform expression set the shader was compiled for.
const FUniformExpressionSet& MaterialUniformExpressionSet = Material.GetRenderingThreadShaderMap()->GetUniformExpressionSet();
#if NO_LOGGING == 0
const bool bUniformExpressionSetMismatch = !DebugUniformExpressionSet.Matches(MaterialUniformExpressionSet)
|| UniformExpressionCache->CachedUniformExpressionShaderMap != Material.GetRenderingThreadShaderMap();
if (bUniformExpressionSetMismatch)
{
UE_LOG(
LogShaders,
Fatal,
TEXT("%s shader uniform expression set mismatch for material %s/%s.\n")
TEXT("Shader compilation info: %s\n")
TEXT("Material render proxy compilation info: %s\n")
TEXT("Shader uniform expression set: %u vectors, %u scalars, %u 2D textures, %u cube textures, %u scalars/frame, %u vectors/frame, shader map %p\n")
TEXT("Material uniform expression set: %u vectors, %u scalars, %u 2D textures, %u cube textures, %u scalars/frame, %u vectors/frame, shader map %p\n"),
GetType()->GetName(),
*MaterialRenderProxy->GetFriendlyName(),
*Material.GetFriendlyName(),
*DebugDescription,
*Material.GetRenderingThreadShaderMap()->GetDebugDescription(),
DebugUniformExpressionSet.NumVectorExpressions,
DebugUniformExpressionSet.NumScalarExpressions,
DebugUniformExpressionSet.Num2DTextureExpressions,
DebugUniformExpressionSet.NumCubeTextureExpressions,
DebugUniformExpressionSet.NumPerFrameScalarExpressions,
DebugUniformExpressionSet.NumPerFrameVectorExpressions,
UniformExpressionCache->CachedUniformExpressionShaderMap,
MaterialUniformExpressionSet.UniformVectorExpressions.Num(),
MaterialUniformExpressionSet.UniformScalarExpressions.Num(),
MaterialUniformExpressionSet.Uniform2DTextureExpressions.Num(),
MaterialUniformExpressionSet.UniformCubeTextureExpressions.Num(),
MaterialUniformExpressionSet.PerFrameUniformScalarExpressions.Num(),
MaterialUniformExpressionSet.PerFrameUniformVectorExpressions.Num(),
Material.GetRenderingThreadShaderMap()
);
}
#endif
if (UniformExpressionCache->LocalUniformBuffer.IsValid())
{
// Set the material uniform buffer.
SetLocalUniformBufferParameter(RHICmdList, ShaderRHI, MaterialUniformBuffer, UniformExpressionCache->LocalUniformBuffer);
}
else
{
// Set the material uniform buffer.
SetUniformBufferParameter(RHICmdList, ShaderRHI, MaterialUniformBuffer, UniformExpressionCache->UniformBuffer);
}
{
const TArray<FGuid>& ParameterCollections = UniformExpressionCache->ParameterCollections;
const int32 ParameterCollectionsNum = ParameterCollections.Num();
check(ParameterCollectionUniformBuffers.Num() >= ParameterCollectionsNum);
// Find each referenced parameter collection's uniform buffer in the scene and set the parameter
for (int32 CollectionIndex = 0; CollectionIndex < ParameterCollectionsNum; CollectionIndex++)
{
FUniformBufferRHIParamRef UniformBuffer = GetParameterCollectionBuffer(ParameterCollections[CollectionIndex], View.Family->Scene);
SetUniformBufferParameter(RHICmdList, ShaderRHI,ParameterCollectionUniformBuffers[CollectionIndex],UniformBuffer);
}
}
{
// Per frame material expressions
const int32 NumScalarExpressions = PerFrameScalarExpressions.Num();
const int32 NumVectorExpressions = PerFrameVectorExpressions.Num();
if (NumScalarExpressions > 0 || NumVectorExpressions > 0)
{
FMaterialRenderContext MaterialRenderContext(MaterialRenderProxy, Material, &View);
MaterialRenderContext.Time = View.Family->CurrentWorldTime;
MaterialRenderContext.RealTime = View.Family->CurrentRealTime;
for (int32 Index = 0; Index < NumScalarExpressions; ++Index)
{
auto& Parameter = PerFrameScalarExpressions[Index];
if (Parameter.IsBound())
{
FLinearColor TempValue;
MaterialUniformExpressionSet.PerFrameUniformScalarExpressions[Index]->GetNumberValue(MaterialRenderContext, TempValue);
SetShaderValue(RHICmdList, ShaderRHI, Parameter, TempValue.R);
}
}
for (int32 Index = 0; Index < NumVectorExpressions; ++Index)
{
auto& Parameter = PerFrameVectorExpressions[Index];
if (Parameter.IsBound())
{
FLinearColor TempValue;
MaterialUniformExpressionSet.PerFrameUniformVectorExpressions[Index]->GetNumberValue(MaterialRenderContext, TempValue);
SetShaderValue(RHICmdList, ShaderRHI, Parameter, TempValue);
}
}
// Now previous frame's expressions
const int32 NumPrevScalarExpressions = PerFramePrevScalarExpressions.Num();
const int32 NumPrevVectorExpressions = PerFramePrevVectorExpressions.Num();
if (NumPrevScalarExpressions > 0 || NumPrevVectorExpressions > 0)
{
MaterialRenderContext.Time = View.Family->CurrentWorldTime - View.Family->DeltaWorldTime;
MaterialRenderContext.RealTime = View.Family->CurrentRealTime - View.Family->DeltaWorldTime;
for (int32 Index = 0; Index < NumPrevScalarExpressions; ++Index)
{
auto& Parameter = PerFramePrevScalarExpressions[Index];
if (Parameter.IsBound())
{
FLinearColor TempValue;
MaterialUniformExpressionSet.PerFramePrevUniformScalarExpressions[Index]->GetNumberValue(MaterialRenderContext, TempValue);
SetShaderValue(RHICmdList, ShaderRHI, Parameter, TempValue.R);
}
}
for (int32 Index = 0; Index < NumPrevVectorExpressions; ++Index)
{
auto& Parameter = PerFramePrevVectorExpressions[Index];
if (Parameter.IsBound())
{
FLinearColor TempValue;
MaterialUniformExpressionSet.PerFramePrevUniformVectorExpressions[Index]->GetNumberValue(MaterialRenderContext, TempValue);
SetShaderValue(RHICmdList, ShaderRHI, Parameter, TempValue);
}
}
}
}
}
DeferredParameters.Set(RHICmdList, ShaderRHI, View, TextureMode);
AtmosphericFogTextureParameters.Set(RHICmdList, ShaderRHI, View);
if (FeatureLevel >= ERHIFeatureLevel::SM4)
{
// for copied scene color
if(LightAttenuation.IsBound())
{
SetTextureParameter(
RHICmdList,
ShaderRHI,
LightAttenuation,
LightAttenuationSampler,
TStaticSamplerState<SF_Bilinear,AM_Clamp,AM_Clamp,AM_Clamp>::GetRHI(),
GSceneRenderTargets.GetLightAttenuationTexture());
}
}
//Use of the eye adaptation texture here is experimental and potentially dangerous as it can introduce a feedback loop. May be removed.
if(EyeAdaptation.IsBound())
{
FTextureRHIRef& EyeAdaptationTex = GetEyeAdaptation(View);
SetTextureParameter(RHICmdList, ShaderRHI, EyeAdaptation, EyeAdaptationTex);
}
if (PerlinNoiseGradientTexture.IsBound() && IsValidRef(GSystemTextures.PerlinNoiseGradient))
{
const FTexture2DRHIRef& Texture = (FTexture2DRHIRef&)GSystemTextures.PerlinNoiseGradient->GetRenderTargetItem().ShaderResourceTexture;
// Bind the PerlinNoiseGradientTexture as a texture
SetTextureParameter(
RHICmdList,
ShaderRHI,
PerlinNoiseGradientTexture,
PerlinNoiseGradientTextureSampler,
TStaticSamplerState<SF_Point,AM_Wrap,AM_Wrap,AM_Wrap>::GetRHI(),
Texture
);
}
if (PerlinNoise3DTexture.IsBound() && IsValidRef(GSystemTextures.PerlinNoise3D))
{
const FTexture3DRHIRef& Texture = (FTexture3DRHIRef&)GSystemTextures.PerlinNoise3D->GetRenderTargetItem().ShaderResourceTexture;
// Bind the PerlinNoise3DTexture as a texture
SetTextureParameter(
RHICmdList,
ShaderRHI,
PerlinNoise3DTexture,
PerlinNoise3DTextureSampler,
TStaticSamplerState<SF_Bilinear,AM_Wrap,AM_Wrap,AM_Wrap>::GetRHI(),
Texture
);
}
GlobalDistanceFieldParameters.Set(RHICmdList, ShaderRHI, static_cast<const FViewInfo&>(View).GlobalDistanceFieldInfo.ParameterData);
}
//==========================================================================
//
// Draw the plane segment into the gap
//
//==========================================================================
void FDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, bool ceiling)
{
GLSectorPlane plane;
int lightlevel;
FColormap Colormap;
FMaterial * gltexture;
plane.GetFromSector(sec, ceiling);
gltexture=FMaterial::ValidateTexture(plane.texture, true);
if (!gltexture) return;
if (gl_fixedcolormap)
{
Colormap.Clear();
lightlevel=255;
}
else
{
Colormap=sec->ColorMap;
if (gltexture->tex->isFullbright())
{
Colormap.LightColor.r = Colormap.LightColor.g = Colormap.LightColor.b = 0xff;
lightlevel=255;
}
else lightlevel=abs(ceiling? sec->GetCeilingLight() : sec->GetFloorLight());
}
int rel = getExtraLight();
gl_SetColor(lightlevel, rel, Colormap, 1.0f);
gl_SetFog(lightlevel, rel, &Colormap, false);
gltexture->Bind();
float fviewx = FIXED2FLOAT(viewx);
float fviewy = FIXED2FLOAT(viewy);
float fviewz = FIXED2FLOAT(viewz);
gl_SetPlaneTextureRotation(&plane, gltexture);
gl_RenderState.Apply();
float prj_fac1 = (planez-fviewz)/(ws->z1-fviewz);
float prj_fac2 = (planez-fviewz)/(ws->z2-fviewz);
float px1 = fviewx + prj_fac1 * (ws->x1-fviewx);
float py1 = fviewy + prj_fac1 * (ws->y1-fviewy);
float px2 = fviewx + prj_fac2 * (ws->x1-fviewx);
float py2 = fviewy + prj_fac2 * (ws->y1-fviewy);
float px3 = fviewx + prj_fac2 * (ws->x2-fviewx);
float py3 = fviewy + prj_fac2 * (ws->y2-fviewy);
float px4 = fviewx + prj_fac1 * (ws->x2-fviewx);
float py4 = fviewy + prj_fac1 * (ws->y2-fviewy);
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(px1, planez, py1, px1 / 64, -py1 / 64);
ptr++;
ptr->Set(px2, planez, py2, px2 / 64, -py2 / 64);
ptr++;
ptr->Set(px3, planez, py3, px3 / 64, -py3 / 64);
ptr++;
ptr->Set(px4, planez, py4, px4 / 64, -py4 / 64);
ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_FAN);
gl_RenderState.EnableTextureMatrix(false);
}
//==========================================================================
//
//
//
//==========================================================================
void GLWall::DrawDecal(DBaseDecal *decal)
{
line_t * line=seg->linedef;
side_t * side=seg->sidedef;
int i;
float zpos;
int light;
int rel;
float a;
bool flipx, flipy;
DecalVertex dv[4];
FTextureID decalTile;
if (decal->RenderFlags & RF_INVISIBLE) return;
if (type==RENDERWALL_FFBLOCK && gltexture->isMasked()) return; // No decals on 3D floors with transparent textures.
//if (decal->sprite != 0xffff)
{
decalTile = decal->PicNum;
flipx = !!(decal->RenderFlags & RF_XFLIP);
flipy = !!(decal->RenderFlags & RF_YFLIP);
}
/*
else
{
decalTile = SpriteFrames[sprites[decal->sprite].spriteframes + decal->frame].lump[0];
flipx = SpriteFrames[sprites[decal->sprite].spriteframes + decal->frame].flip & 1;
}
*/
FTexture *texture = TexMan[decalTile];
if (texture == NULL) return;
FMaterial *tex;
tex = FMaterial::ValidateTexture(texture, true);
// the sectors are only used for their texture origin coordinates
// so we don't need the fake sectors for deep water etc.
// As this is a completely split wall fragment no further splits are
// necessary for the decal.
sector_t *frontsector;
// for 3d-floor segments use the model sector as reference
if ((decal->RenderFlags&RF_CLIPMASK)==RF_CLIPMID) frontsector=decal->Sector;
else frontsector=seg->frontsector;
switch (decal->RenderFlags & RF_RELMASK)
{
default:
// No valid decal can have this type. If one is encountered anyway
// it is in some way invalid so skip it.
return;
//zpos = decal->z;
//break;
case RF_RELUPPER:
if (type!=RENDERWALL_TOP) return;
if (line->flags & ML_DONTPEGTOP)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
else
{
zpos = decal->Z + seg->backsector->GetPlaneTexZ(sector_t::ceiling);
}
break;
case RF_RELLOWER:
if (type!=RENDERWALL_BOTTOM) return;
if (line->flags & ML_DONTPEGBOTTOM)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
else
{
zpos = decal->Z + seg->backsector->GetPlaneTexZ(sector_t::floor);
}
break;
case RF_RELMID:
if (type==RENDERWALL_TOP || type==RENDERWALL_BOTTOM) return;
if (line->flags & ML_DONTPEGBOTTOM)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::floor);
}
else
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
}
if (decal->RenderFlags & RF_FULLBRIGHT)
{
light = 255;
rel = 0;
}
else
{
light = lightlevel;
rel = rellight + getExtraLight();
}
FColormap p = Colormap;
if (glset.nocoloredspritelighting)
{
p.Decolorize();
}
a = decal->Alpha;
// now clip the decal to the actual polygon
float decalwidth = tex->TextureWidth() * decal->ScaleX;
float decalheight= tex->TextureHeight() * decal->ScaleY;
float decallefto = tex->GetLeftOffset() * decal->ScaleX;
float decaltopo = tex->GetTopOffset() * decal->ScaleY;
float leftedge = glseg.fracleft * side->TexelLength;
float linelength = glseg.fracright * side->TexelLength - leftedge;
// texel index of the decal's left edge
float decalpixpos = (float)side->TexelLength * decal->LeftDistance - (flipx? decalwidth-decallefto : decallefto) - leftedge;
float left,right;
float lefttex,righttex;
// decal is off the left edge
if (decalpixpos < 0)
{
left = 0;
lefttex = -decalpixpos;
}
else
{
left = decalpixpos;
lefttex = 0;
}
// decal is off the right edge
if (decalpixpos + decalwidth > linelength)
{
right = linelength;
righttex = right - decalpixpos;
}
else
{
right = decalpixpos + decalwidth;
righttex = decalwidth;
}
if (right<=left) return; // nothing to draw
// one texture unit on the wall as vector
float vx=(glseg.x2-glseg.x1)/linelength;
float vy=(glseg.y2-glseg.y1)/linelength;
dv[1].x=dv[0].x=glseg.x1+vx*left;
dv[1].y=dv[0].y=glseg.y1+vy*left;
dv[3].x=dv[2].x=glseg.x1+vx*right;
dv[3].y=dv[2].y=glseg.y1+vy*right;
zpos+= (flipy? decalheight-decaltopo : decaltopo);
dv[1].z=dv[2].z = zpos;
dv[0].z=dv[3].z = dv[1].z - decalheight;
dv[1].v=dv[2].v = tex->GetVT();
dv[1].u=dv[0].u = tex->GetU(lefttex / decal->ScaleX);
dv[3].u=dv[2].u = tex->GetU(righttex / decal->ScaleX);
dv[0].v=dv[3].v = tex->GetVB();
// now clip to the top plane
float vzt=(ztop[1]-ztop[0])/linelength;
float topleft=this->ztop[0]+vzt*left;
float topright=this->ztop[0]+vzt*right;
// completely below the wall
if (topleft<dv[0].z && topright<dv[3].z)
return;
if (topleft<dv[1].z || topright<dv[2].z)
{
// decal has to be clipped at the top
// let texture clamping handle all extreme cases
dv[1].v=(dv[1].z-topleft)/(dv[1].z-dv[0].z)*dv[0].v;
dv[2].v=(dv[2].z-topright)/(dv[2].z-dv[3].z)*dv[3].v;
dv[1].z=topleft;
dv[2].z=topright;
}
// now clip to the bottom plane
float vzb=(zbottom[1]-zbottom[0])/linelength;
float bottomleft=this->zbottom[0]+vzb*left;
float bottomright=this->zbottom[0]+vzb*right;
// completely above the wall
if (bottomleft>dv[1].z && bottomright>dv[2].z)
return;
if (bottomleft>dv[0].z || bottomright>dv[3].z)
{
// decal has to be clipped at the bottom
// let texture clamping handle all extreme cases
dv[0].v=(dv[1].z-bottomleft)/(dv[1].z-dv[0].z)*(dv[0].v-dv[1].v) + dv[1].v;
dv[3].v=(dv[2].z-bottomright)/(dv[2].z-dv[3].z)*(dv[3].v-dv[2].v) + dv[2].v;
dv[0].z=bottomleft;
dv[3].z=bottomright;
}
if (flipx)
{
float ur = tex->GetUR();
for(i=0;i<4;i++) dv[i].u=ur-dv[i].u;
}
if (flipy)
{
float vb = tex->GetVB();
for(i=0;i<4;i++) dv[i].v=vb-dv[i].v;
}
// calculate dynamic light effect.
if (gl_lights && GLRenderer->mLightCount && !gl_fixedcolormap && gl_light_sprites)
{
// Note: This should be replaced with proper shader based lighting.
double x, y;
decal->GetXY(seg->sidedef, x, y);
gl_SetDynSpriteLight(NULL, x, y, zpos, sub);
}
// alpha color only has an effect when using an alpha texture.
if (decal->RenderStyle.Flags & STYLEF_RedIsAlpha)
{
gl_RenderState.SetObjectColor(decal->AlphaColor|0xff000000);
}
gl_SetRenderStyle(decal->RenderStyle, false, false);
gl_RenderState.SetMaterial(tex, CLAMP_XY, decal->Translation, 0, !!(decal->RenderStyle.Flags & STYLEF_RedIsAlpha));
// If srcalpha is one it looks better with a higher alpha threshold
if (decal->RenderStyle.SrcAlpha == STYLEALPHA_One) gl_RenderState.AlphaFunc(GL_GEQUAL, gl_mask_sprite_threshold);
else gl_RenderState.AlphaFunc(GL_GREATER, 0.f);
gl_SetColor(light, rel, p, a);
// for additively drawn decals we must temporarily set the fog color to black.
PalEntry fc = gl_RenderState.GetFogColor();
if (decal->RenderStyle.BlendOp == STYLEOP_Add && decal->RenderStyle.DestAlpha == STYLEALPHA_One)
{
gl_RenderState.SetFog(0,-1);
}
FQuadDrawer qd;
for (i = 0; i < 4; i++)
{
qd.Set(i, dv[i].x, dv[i].z, dv[i].y, dv[i].u, dv[i].v);
}
if (lightlist == NULL)
{
gl_RenderState.Apply();
qd.Render(GL_TRIANGLE_FAN);
}
else
{
for (unsigned k = 0; k < lightlist->Size(); k++)
{
secplane_t &lowplane = k == (*lightlist).Size() - 1 ? bottomplane : (*lightlist)[k + 1].plane;
float low1 = lowplane.ZatPoint(dv[1].x, dv[1].y);
float low2 = lowplane.ZatPoint(dv[2].x, dv[2].y);
if (low1 < dv[1].z || low2 < dv[2].z)
{
int thisll = (*lightlist)[k].caster != NULL ? gl_ClampLight(*(*lightlist)[k].p_lightlevel) : lightlevel;
FColormap thiscm;
thiscm.FadeColor = Colormap.FadeColor;
thiscm.CopyFrom3DLight(&(*lightlist)[k]);
gl_SetColor(thisll, rel, thiscm, a);
if (glset.nocoloredspritelighting) thiscm.Decolorize();
gl_SetFog(thisll, rel, &thiscm, RenderStyle == STYLE_Add);
gl_RenderState.SetSplitPlanes((*lightlist)[k].plane, lowplane);
gl_RenderState.Apply();
qd.Render(GL_TRIANGLE_FAN);
}
if (low1 <= dv[0].z && low2 <= dv[3].z) break;
}
}
rendered_decals++;
gl_RenderState.SetTextureMode(TM_MODULATE);
gl_RenderState.SetObjectColor(0xffffffff);
gl_RenderState.SetFog(fc,-1);
gl_RenderState.SetDynLight(0,0,0);
}
void FGLRenderer::DrawPSprite (player_t * player,DPSprite *psp, float sx, float sy, bool hudModelStep, int OverrideShader, bool alphatexture)
{
float fU1,fV1;
float fU2,fV2;
float tx;
float x1,y1,x2,y2;
float scale;
float scalex;
float ftexturemid;
// 4:3 16:9 16:10 17:10 5:4 17:10 21:9
static float xratio[] = {1.f, 3.f/4, 5.f/6, 40.f/51, 1.f, 40.f/51, 4.f/7};
// [BB] In the HUD model step we just render the model and break out.
if ( hudModelStep )
{
gl_RenderHUDModel(psp, sx, sy);
return;
}
// decide which patch to use
bool mirror;
FTextureID lump = gl_GetSpriteFrame(psp->GetSprite(), psp->GetFrame(), 0, 0, &mirror);
if (!lump.isValid()) return;
FMaterial * tex = FMaterial::ValidateTexture(lump, true, false);
if (!tex) return;
gl_RenderState.SetMaterial(tex, CLAMP_XY_NOMIP, 0, OverrideShader, alphatexture);
float vw = (float)viewwidth;
float vh = (float)viewheight;
FloatRect r;
tex->GetSpriteRect(&r);
// calculate edges of the shape
scalex = xratio[WidescreenRatio] * vw / 320;
tx = sx - (160 - r.left);
x1 = tx * scalex + vw/2;
if (x1 > vw) return; // off the right side
x1 += viewwindowx;
tx += r.width;
x2 = tx * scalex + vw / 2;
if (x2 < 0) return; // off the left side
x2 += viewwindowx;
// killough 12/98: fix psprite positioning problem
ftexturemid = 100.f - sy - r.top;
AWeapon * wi=player->ReadyWeapon;
if (wi && wi->YAdjust != 0)
{
float fYAd = wi->YAdjust;
if (screenblocks >= 11)
{
ftexturemid -= fYAd;
}
else if (!st_scale)
{
ftexturemid -= StatusBar->GetDisplacement () * fYAd;
}
}
scale = (SCREENHEIGHT*vw) / (SCREENWIDTH * 200.0f);
y1 = viewwindowy + vh / 2 - (ftexturemid * scale);
y2 = y1 + (r.height * scale) + 1;
if (!mirror)
{
fU1=tex->GetSpriteUL();
fV1=tex->GetSpriteVT();
fU2=tex->GetSpriteUR();
fV2=tex->GetSpriteVB();
}
else
{
fU2=tex->GetSpriteUL();
fV1=tex->GetSpriteVT();
fU1=tex->GetSpriteUR();
fV2=tex->GetSpriteVB();
}
if (tex->GetTransparent() || OverrideShader != -1)
{
gl_RenderState.AlphaFunc(GL_GEQUAL, 0.f);
}
gl_RenderState.Apply();
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(x1, y1, 0, fU1, fV1);
ptr++;
ptr->Set(x1, y2, 0, fU1, fV2);
ptr++;
ptr->Set(x2, y1, 0, fU2, fV1);
ptr++;
ptr->Set(x2, y2, 0, fU2, fV2);
ptr++;
GLRenderer->mVBO->RenderCurrent(ptr, GL_TRIANGLE_STRIP);
gl_RenderState.AlphaFunc(GL_GEQUAL, 0.5f);
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//
//
// Horizon Portal
//
// This simply draws the area in medium sized squares. Drawing it as a whole
// polygon creates visible inaccuracies.
//
// Originally I tried to minimize the amount of data to be drawn but there
// are 2 problems with it:
//
// 1. Setting this up completely negates any performance gains.
// 2. It doesn't work with a 360° field of view (as when you are looking up.)
//
//
// So the brute force mechanism is just as good.
//
//
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//
// GLHorizonPortal::DrawContents
//
//-----------------------------------------------------------------------------
void GLHorizonPortal::DrawContents()
{
PortalAll.Clock();
GLSectorPlane * sp=&origin->plane;
FMaterial * gltexture;
PalEntry color;
float z;
player_t * player=&players[consoleplayer];
gltexture=FMaterial::ValidateTexture(sp->texture, true);
if (!gltexture)
{
ClearScreen();
PortalAll.Unclock();
return;
}
z=FIXED2FLOAT(sp->texheight);
if (gltexture && gltexture->tex->isFullbright())
{
// glowing textures are always drawn full bright without color
gl_SetColor(255, 0, NULL, 1.f);
gl_SetFog(255, 0, &origin->colormap, false);
}
else
{
int rel = getExtraLight();
gl_SetColor(origin->lightlevel, rel, &origin->colormap, 1.0f);
gl_SetFog(origin->lightlevel, rel, &origin->colormap, false);
}
gltexture->Bind(origin->colormap.colormap);
gl_RenderState.EnableAlphaTest(false);
gl_RenderState.BlendFunc(GL_ONE,GL_ZERO);
gl_RenderState.Apply();
bool pushed = gl_SetPlaneTextureRotation(sp, gltexture);
float vx=FIXED2FLOAT(viewx);
float vy=FIXED2FLOAT(viewy);
// Draw to some far away boundary
for(float x=-32768+vx; x<32768+vx; x+=4096)
{
for(float y=-32768+vy; y<32768+vy;y+=4096)
{
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(x/64, -y/64);
glVertex3f(x, z, y);
glTexCoord2f(x/64 + 64, -y/64);
glVertex3f(x + 4096, z, y);
glTexCoord2f(x/64 + 64, -y/64 - 64);
glVertex3f(x + 4096, z, y + 4096);
glTexCoord2f(x/64, -y/64 - 64);
glVertex3f(x, z, y + 4096);
glEnd();
}
}
float vz=FIXED2FLOAT(viewz);
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
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(512.f, 0);
glVertex3f(-32768+vx, z, -32768+vy);
glTexCoord2f(512.f, tz);
glVertex3f(-32768+vx, vz, -32768+vy);
glTexCoord2f(-512.f, 0);
glVertex3f(-32768+vx, z, 32768+vy);
glTexCoord2f(-512.f, tz);
glVertex3f(-32768+vx, vz, 32768+vy);
glTexCoord2f(512.f, 0);
glVertex3f( 32768+vx, z, 32768+vy);
glTexCoord2f(512.f, tz);
glVertex3f( 32768+vx, vz, 32768+vy);
glTexCoord2f(-512.f, 0);
glVertex3f( 32768+vx, z, -32768+vy);
glTexCoord2f(-512.f, tz);
glVertex3f( 32768+vx, vz, -32768+vy);
glTexCoord2f(512.f, 0);
glVertex3f(-32768+vx, z, -32768+vy);
glTexCoord2f(512.f, tz);
glVertex3f(-32768+vx, vz, -32768+vy);
glEnd();
if (pushed)
{
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
PortalAll.Unclock();
}
//==========================================================================
//
//
//
//==========================================================================
void GLWall::DrawDecal(DBaseDecal *decal)
{
line_t * line=seg->linedef;
side_t * side=seg->sidedef;
int i;
fixed_t zpos;
int light;
int rel;
float a;
bool flipx, flipy, loadAlpha;
DecalVertex dv[4];
FTextureID decalTile;
if (decal->RenderFlags & RF_INVISIBLE) return;
if (type==RENDERWALL_FFBLOCK && gltexture->isMasked()) return; // No decals on 3D floors with transparent textures.
//if (decal->sprite != 0xffff)
{
decalTile = decal->PicNum;
flipx = !!(decal->RenderFlags & RF_XFLIP);
flipy = !!(decal->RenderFlags & RF_YFLIP);
}
/*
else
{
decalTile = SpriteFrames[sprites[decal->sprite].spriteframes + decal->frame].lump[0];
flipx = SpriteFrames[sprites[decal->sprite].spriteframes + decal->frame].flip & 1;
}
*/
FTexture *texture = TexMan[decalTile];
if (texture == NULL) return;
FMaterial *tex;
if (texture->UseType == FTexture::TEX_MiscPatch)
{
// We need to create a clone of this texture where we can force the
// texture filtering offset in.
if (texture->gl_info.DecalTexture == NULL)
{
texture->gl_info.DecalTexture = new FCloneTexture(texture, FTexture::TEX_Decal);
}
tex = FMaterial::ValidateTexture(texture->gl_info.DecalTexture);
}
else tex = FMaterial::ValidateTexture(texture);
// the sectors are only used for their texture origin coordinates
// so we don't need the fake sectors for deep water etc.
// As this is a completely split wall fragment no further splits are
// necessary for the decal.
sector_t *frontsector;
// for 3d-floor segments use the model sector as reference
if ((decal->RenderFlags&RF_CLIPMASK)==RF_CLIPMID) frontsector=decal->Sector;
else frontsector=seg->frontsector;
switch (decal->RenderFlags & RF_RELMASK)
{
default:
// No valid decal can have this type. If one is encountered anyway
// it is in some way invalid so skip it.
return;
//zpos = decal->z;
//break;
case RF_RELUPPER:
if (type!=RENDERWALL_TOP) return;
if (line->flags & ML_DONTPEGTOP)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
else
{
zpos = decal->Z + seg->backsector->GetPlaneTexZ(sector_t::ceiling);
}
break;
case RF_RELLOWER:
if (type!=RENDERWALL_BOTTOM) return;
if (line->flags & ML_DONTPEGBOTTOM)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
else
{
zpos = decal->Z + seg->backsector->GetPlaneTexZ(sector_t::floor);
}
break;
case RF_RELMID:
if (type==RENDERWALL_TOP || type==RENDERWALL_BOTTOM) return;
if (line->flags & ML_DONTPEGBOTTOM)
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::floor);
}
else
{
zpos = decal->Z + frontsector->GetPlaneTexZ(sector_t::ceiling);
}
}
if (decal->RenderFlags & RF_FULLBRIGHT)
{
light = 255;
rel = 0;
}
else
{
light = lightlevel;
rel = rellight + getExtraLight();
}
int r = RPART(decal->AlphaColor);
int g = GPART(decal->AlphaColor);
int b = BPART(decal->AlphaColor);
FColormap p = Colormap;
if (glset.nocoloredspritelighting)
{
int v = (Colormap.LightColor.r * 77 + Colormap.LightColor.g*143 + Colormap.LightColor.b*35)/255;
p.LightColor = PalEntry(p.colormap, v, v, v);
}
float red, green, blue;
if (decal->RenderStyle.Flags & STYLEF_RedIsAlpha)
{
loadAlpha = true;
p.colormap=CM_SHADE;
if (glset.lightmode != 8)
{
gl_GetLightColor(light, rel, &p, &red, &green, &blue);
}
else
{
gl_GetLightColor(lightlevel, rellight, &p, &red, &green, &blue);
}
if (gl_lights && GLRenderer->mLightCount && !gl_fixedcolormap && gl_light_sprites)
{
float result[3];
fixed_t x, y;
decal->GetXY(seg->sidedef, x, y);
gl_GetSpriteLight(NULL, x, y, zpos, sub, Colormap.colormap-CM_DESAT0, result, line, side == line->sidedef[0]? 0:1);
if (glset.lightmode != 8)
{
red = clamp<float>(result[0]+red, 0, 1.0f);
green = clamp<float>(result[1]+green, 0, 1.0f);
blue = clamp<float>(result[2]+blue, 0, 1.0f);
}
else
{
gl_RenderState.SetDynLight(result[0], result[1], result[2]);
}
}
BYTE R = xs_RoundToInt(r * red);
BYTE G = xs_RoundToInt(g * green);
BYTE B = xs_RoundToInt(b * blue);
gl_ModifyColor(R,G,B, Colormap.colormap);
red = R/255.f;
green = G/255.f;
blue = B/255.f;
}
else
{
loadAlpha = false;
red = 1.f;
green = 1.f;
blue = 1.f;
}
a = FIXED2FLOAT(decal->Alpha);
// now clip the decal to the actual polygon
float decalwidth = tex->TextureWidth(GLUSE_PATCH) * FIXED2FLOAT(decal->ScaleX);
float decalheight= tex->TextureHeight(GLUSE_PATCH) * FIXED2FLOAT(decal->ScaleY);
float decallefto = tex->GetLeftOffset(GLUSE_PATCH) * FIXED2FLOAT(decal->ScaleX);
float decaltopo = tex->GetTopOffset(GLUSE_PATCH) * FIXED2FLOAT(decal->ScaleY);
float leftedge = glseg.fracleft * side->TexelLength;
float linelength = glseg.fracright * side->TexelLength - leftedge;
// texel index of the decal's left edge
float decalpixpos = (float)side->TexelLength * decal->LeftDistance / (1<<30) - (flipx? decalwidth-decallefto : decallefto) - leftedge;
float left,right;
float lefttex,righttex;
// decal is off the left edge
if (decalpixpos < 0)
{
left = 0;
lefttex = -decalpixpos;
}
else
{
left = decalpixpos;
lefttex = 0;
}
// decal is off the right edge
if (decalpixpos + decalwidth > linelength)
{
right = linelength;
righttex = right - decalpixpos;
}
else
{
right = decalpixpos + decalwidth;
righttex = decalwidth;
}
if (right<=left) return; // nothing to draw
// one texture unit on the wall as vector
float vx=(glseg.x2-glseg.x1)/linelength;
float vy=(glseg.y2-glseg.y1)/linelength;
dv[1].x=dv[0].x=glseg.x1+vx*left;
dv[1].y=dv[0].y=glseg.y1+vy*left;
dv[3].x=dv[2].x=glseg.x1+vx*right;
dv[3].y=dv[2].y=glseg.y1+vy*right;
zpos+= FRACUNIT*(flipy? decalheight-decaltopo : decaltopo);
tex->BindPatch(p.colormap, decal->Translation);
dv[1].z=dv[2].z = FIXED2FLOAT(zpos);
dv[0].z=dv[3].z = dv[1].z - decalheight;
dv[1].v=dv[2].v = tex->GetVT();
dv[1].u=dv[0].u = tex->GetU(lefttex / FIXED2FLOAT(decal->ScaleX));
dv[3].u=dv[2].u = tex->GetU(righttex / FIXED2FLOAT(decal->ScaleX));
dv[0].v=dv[3].v = tex->GetVB();
// now clip to the top plane
float vzt=(ztop[1]-ztop[0])/linelength;
float topleft=this->ztop[0]+vzt*left;
float topright=this->ztop[0]+vzt*right;
// completely below the wall
if (topleft<dv[0].z && topright<dv[3].z)
return;
if (topleft<dv[1].z || topright<dv[2].z)
{
// decal has to be clipped at the top
// let texture clamping handle all extreme cases
dv[1].v=(dv[1].z-topleft)/(dv[1].z-dv[0].z)*dv[0].v;
dv[2].v=(dv[2].z-topright)/(dv[2].z-dv[3].z)*dv[3].v;
dv[1].z=topleft;
dv[2].z=topright;
}
// now clip to the bottom plane
float vzb=(zbottom[1]-zbottom[0])/linelength;
float bottomleft=this->zbottom[0]+vzb*left;
float bottomright=this->zbottom[0]+vzb*right;
// completely above the wall
if (bottomleft>dv[1].z && bottomright>dv[2].z)
return;
if (bottomleft>dv[0].z || bottomright>dv[3].z)
{
// decal has to be clipped at the bottom
// let texture clamping handle all extreme cases
dv[0].v=(dv[1].z-bottomleft)/(dv[1].z-dv[0].z)*(dv[0].v-dv[1].v) + dv[1].v;
dv[3].v=(dv[2].z-bottomright)/(dv[2].z-dv[3].z)*(dv[3].v-dv[2].v) + dv[2].v;
dv[0].z=bottomleft;
dv[3].z=bottomright;
}
if (flipx)
{
float ur = tex->GetUR();
for(i=0;i<4;i++) dv[i].u=ur-dv[i].u;
}
if (flipy)
{
float vb = tex->GetVB();
for(i=0;i<4;i++) dv[i].v=vb-dv[i].v;
}
// fog is set once per wall in the calling function and not per decal!
if (loadAlpha)
{
glColor4f(red, green, blue, a);
if (glset.lightmode == 8)
{
if (gl_fixedcolormap)
glVertexAttrib1f(VATTR_LIGHTLEVEL, 1.0);
else
glVertexAttrib1f(VATTR_LIGHTLEVEL, gl_CalcLightLevel(light, rel, false) / 255.0);
}
}
else
{
if (glset.lightmode == 8)
{
gl_SetColor(light, rel, &p, a, extralight); // Korshun.
}
else
{
gl_SetColor(light, rel, &p, a);
}
}
PalEntry fc = gl_RenderState.GetFogColor();
if (decal->RenderStyle.BlendOp == STYLEOP_Add && decal->RenderStyle.DestAlpha == STYLEALPHA_One)
{
gl_RenderState.SetFog(0,-1);
}
gl_SetRenderStyle(decal->RenderStyle, false, false);
// If srcalpha is one it looks better with a higher alpha threshold
if (decal->RenderStyle.SrcAlpha == STYLEALPHA_One) gl_RenderState.AlphaFunc(GL_GEQUAL, gl_mask_threshold);
else gl_RenderState.AlphaFunc(GL_GREATER, 0.f);
gl_RenderState.Apply();
glBegin(GL_TRIANGLE_FAN);
for(i=0;i<4;i++)
{
glTexCoord2f(dv[i].u,dv[i].v);
glVertex3f(dv[i].x,dv[i].z,dv[i].y);
}
glEnd();
rendered_decals++;
gl_RenderState.SetFog(fc,-1);
gl_RenderState.SetDynLight(0,0,0);
}