void FShaderManager::ApplyMatrices(VSMatrix *proj, VSMatrix *view)
{
if (gl.legacyMode)
{
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(proj->get());
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(view->get());
}
else
{
VSMatrix norm;
norm.computeNormalMatrix(*view);
for (int i = 0; i < 4; i++)
{
mTextureEffects[i]->ApplyMatrices(proj, view, &norm);
mTextureEffectsNAT[i]->ApplyMatrices(proj, view, &norm);
}
mTextureEffects[4]->ApplyMatrices(proj, view, &norm);
if (gl_fuzztype != 0)
{
mTextureEffects[4 + gl_fuzztype]->ApplyMatrices(proj, view, &norm);
}
for (unsigned i = 12; i < mTextureEffects.Size(); i++)
{
mTextureEffects[i]->ApplyMatrices(proj, view, &norm);
}
for (int i = 0; i < MAX_EFFECTS; i++)
{
mEffectShaders[i]->ApplyMatrices(proj, view, &norm);
}
if (mActiveShader != NULL) mActiveShader->Bind();
}
}
/* virtual */
VSMatrix EyePose::GetProjection(float fov, float aspectRatio, float fovRatio) const
{
VSMatrix result;
// Lifted from gl_scene.cpp FGLRenderer::SetProjection()
float fovy = (float)(2 * RAD2DEG(atan(tan(DEG2RAD(fov) / 2) / fovRatio)));
result.perspective(fovy, aspectRatio, 5.f, 65536.f);
return result;
}
VSMatrix PolyModelRenderer::GetViewToWorldMatrix()
{
Mat4f swapYZ = Mat4f::Null();
swapYZ.Matrix[0 + 0 * 4] = 1.0f;
swapYZ.Matrix[1 + 2 * 4] = 1.0f;
swapYZ.Matrix[2 + 1 * 4] = 1.0f;
swapYZ.Matrix[3 + 3 * 4] = 1.0f;
VSMatrix worldToView;
worldToView.loadMatrix((PolyRenderer::Instance()->Scene.CurrentViewpoint->WorldToView * swapYZ).Matrix);
VSMatrix objectToWorld;
worldToView.inverseMatrix(objectToWorld);
return objectToWorld;
}
void FShaderCollection::ApplyMatrices(VSMatrix *proj, VSMatrix *view)
{
VSMatrix norm;
norm.computeNormalMatrix(*view);
for (int i = 0; i < 4; i++)
{
mTextureEffects[i]->ApplyMatrices(proj, view, &norm);
mTextureEffectsNAT[i]->ApplyMatrices(proj, view, &norm);
}
mTextureEffects[4]->ApplyMatrices(proj, view, &norm);
if (gl_fuzztype != 0)
{
mTextureEffects[4 + gl_fuzztype]->ApplyMatrices(proj, view, &norm);
}
for (unsigned i = 12; i < mTextureEffects.Size(); i++)
{
mTextureEffects[i]->ApplyMatrices(proj, view, &norm);
}
for (int i = 0; i < MAX_EFFECTS; i++)
{
mEffectShaders[i]->ApplyMatrices(proj, view, &norm);
}
}
bool FRenderState::ApplyShader()
{
if (mSpecialEffect > EFF_NONE)
{
activeShader = GLRenderer->mShaderManager->BindEffect(mSpecialEffect);
}
else
{
activeShader = GLRenderer->mShaderManager->Get(mTextureEnabled ? mEffectState : 4, mAlphaThreshold >= 0.f);
activeShader->Bind();
}
int fogset = 0;
if (mFogEnabled)
{
if ((mFogColor & 0xffffff) == 0)
{
fogset = gl_fogmode;
}
else
{
fogset = -gl_fogmode;
}
}
glVertexAttrib4fv(VATTR_COLOR, mColor.vec);
activeShader->muDesaturation.Set(mDesaturation / 255.f);
activeShader->muFogEnabled.Set(fogset);
activeShader->muTextureMode.Set(mTextureMode);
activeShader->muCameraPos.Set(mCameraPos.vec);
activeShader->muLightParms.Set(mLightParms);
activeShader->muFogColor.Set(mFogColor);
activeShader->muObjectColor.Set(mObjectColor);
activeShader->muDynLightColor.Set(mDynColor.vec);
activeShader->muInterpolationFactor.Set(mInterpolationFactor);
activeShader->muClipHeightTop.Set(mClipHeightTop);
activeShader->muClipHeightBottom.Set(mClipHeightBottom);
activeShader->muTimer.Set(gl_frameMS * mShaderTimer / 1000.f);
activeShader->muAlphaThreshold.Set(mAlphaThreshold);
activeShader->muLightIndex.Set(mLightIndex); // will always be -1 for now
activeShader->muClipSplit.Set(mClipSplit);
if (mGlowEnabled)
{
activeShader->muGlowTopColor.Set(mGlowTop.vec);
activeShader->muGlowBottomColor.Set(mGlowBottom.vec);
activeShader->muGlowTopPlane.Set(mGlowTopPlane.vec);
activeShader->muGlowBottomPlane.Set(mGlowBottomPlane.vec);
activeShader->currentglowstate = 1;
}
else if (activeShader->currentglowstate)
{
// if glowing is on, disable it.
static const float nulvec[] = { 0.f, 0.f, 0.f, 0.f };
activeShader->muGlowTopColor.Set(nulvec);
activeShader->muGlowBottomColor.Set(nulvec);
activeShader->muGlowTopPlane.Set(nulvec);
activeShader->muGlowBottomPlane.Set(nulvec);
activeShader->currentglowstate = 0;
}
if (mColormapState != activeShader->currentfixedcolormap)
{
float r, g, b;
activeShader->currentfixedcolormap = mColormapState;
if (mColormapState == CM_DEFAULT)
{
activeShader->muFixedColormap.Set(0);
}
else if (mColormapState < CM_MAXCOLORMAP)
{
FSpecialColormap *scm = &SpecialColormaps[gl_fixedcolormap - CM_FIRSTSPECIALCOLORMAP];
float m[] = { scm->ColorizeEnd[0] - scm->ColorizeStart[0],
scm->ColorizeEnd[1] - scm->ColorizeStart[1], scm->ColorizeEnd[2] - scm->ColorizeStart[2], 0.f };
activeShader->muFixedColormap.Set(1);
activeShader->muColormapStart.Set(scm->ColorizeStart[0], scm->ColorizeStart[1], scm->ColorizeStart[2], 0.f);
activeShader->muColormapRange.Set(m);
}
else if (mColormapState == CM_FOGLAYER)
{
activeShader->muFixedColormap.Set(3);
}
else if (mColormapState == CM_LITE)
{
if (gl_enhanced_nightvision)
{
r = 0.375f, g = 1.0f, b = 0.375f;
}
else
{
r = g = b = 1.f;
}
activeShader->muFixedColormap.Set(2);
activeShader->muColormapStart.Set(r, g, b, 1.f);
}
else if (mColormapState >= CM_TORCH)
{
int flicker = mColormapState - CM_TORCH;
r = (0.8f + (7 - flicker) / 70.0f);
if (r > 1.0f) r = 1.0f;
b = g = r;
if (gl_enhanced_nightvision) b = g * 0.75f;
activeShader->muFixedColormap.Set(2);
activeShader->muColormapStart.Set(r, g, b, 1.f);
}
}
if (mTextureMatrixEnabled)
{
mTextureMatrix.matrixToGL(activeShader->texturematrix_index);
activeShader->currentTextureMatrixState = true;
}
else if (activeShader->currentTextureMatrixState)
{
activeShader->currentTextureMatrixState = false;
identityMatrix.matrixToGL(activeShader->texturematrix_index);
}
if (mModelMatrixEnabled)
{
mModelMatrix.matrixToGL(activeShader->modelmatrix_index);
activeShader->currentModelMatrixState = true;
}
else if (activeShader->currentModelMatrixState)
{
activeShader->currentModelMatrixState = false;
identityMatrix.matrixToGL(activeShader->modelmatrix_index);
}
return true;
}
bool FRenderState::ApplyShader()
{
static uint64_t firstFrame = 0;
// if firstFrame is not yet initialized, initialize it to current time
// if we're going to overflow a float (after ~4.6 hours, or 24 bits), re-init to regain precision
if ((firstFrame == 0) || (screen->FrameTime - firstFrame >= 1<<24) || level.ShaderStartTime >= firstFrame)
firstFrame = screen->FrameTime;
static const float nulvec[] = { 0.f, 0.f, 0.f, 0.f };
if (mSpecialEffect > EFF_NONE)
{
activeShader = GLRenderer->mShaderManager->BindEffect(mSpecialEffect, mPassType);
}
else
{
activeShader = GLRenderer->mShaderManager->Get(mTextureEnabled ? mEffectState : 4, mAlphaThreshold >= 0.f, mPassType);
activeShader->Bind();
}
int fogset = 0;
if (mFogEnabled)
{
if ((mFogColor & 0xffffff) == 0)
{
fogset = gl_fogmode;
}
else
{
fogset = -gl_fogmode;
}
}
glVertexAttrib4fv(VATTR_COLOR, mColor.vec);
glVertexAttrib4fv(VATTR_NORMAL, mNormal.vec);
//activeShader->muObjectColor2.Set(mObjectColor2);
activeShader->muObjectColor2.Set(mObjectColor2);
activeShader->muDesaturation.Set(mDesaturation / 255.f);
activeShader->muFogEnabled.Set(fogset);
activeShader->muPalLightLevels.Set(static_cast<int>(gl_bandedswlight) | (static_cast<int>(gl_fogmode) << 8));
activeShader->muGlobVis.Set(GLRenderer->mGlobVis / 32.0f);
activeShader->muTextureMode.Set(mTextureMode);
activeShader->muCameraPos.Set(mCameraPos.vec);
activeShader->muLightParms.Set(mLightParms);
activeShader->muFogColor.Set(mFogColor);
activeShader->muObjectColor.Set(mObjectColor);
activeShader->muDynLightColor.Set(mDynColor.vec);
activeShader->muInterpolationFactor.Set(mInterpolationFactor);
activeShader->muClipHeight.Set(mClipHeight);
activeShader->muClipHeightDirection.Set(mClipHeightDirection);
activeShader->muTimer.Set((double)(screen->FrameTime - firstFrame) * (double)mShaderTimer / 1000.);
activeShader->muAlphaThreshold.Set(mAlphaThreshold);
activeShader->muLightIndex.Set(mLightIndex); // will always be -1 for now
activeShader->muClipSplit.Set(mClipSplit);
if (mGlowEnabled)
{
activeShader->muGlowTopColor.Set(mGlowTop.vec);
activeShader->muGlowBottomColor.Set(mGlowBottom.vec);
activeShader->currentglowstate = 1;
}
else if (activeShader->currentglowstate)
{
// if glowing is on, disable it.
activeShader->muGlowTopColor.Set(nulvec);
activeShader->muGlowBottomColor.Set(nulvec);
activeShader->currentglowstate = 0;
}
if (mGlowEnabled || mObjectColor2.a != 0)
{
activeShader->muGlowTopPlane.Set(mGlowTopPlane.vec);
activeShader->muGlowBottomPlane.Set(mGlowBottomPlane.vec);
}
if (mSplitEnabled)
{
activeShader->muSplitTopPlane.Set(mSplitTopPlane.vec);
activeShader->muSplitBottomPlane.Set(mSplitBottomPlane.vec);
activeShader->currentsplitstate = 1;
}
else if (activeShader->currentsplitstate)
{
activeShader->muSplitTopPlane.Set(nulvec);
activeShader->muSplitBottomPlane.Set(nulvec);
activeShader->currentsplitstate = 0;
}
if (mClipLineEnabled)
{
activeShader->muClipLine.Set(mClipLine.vec);
activeShader->currentcliplinestate = 1;
}
else if (activeShader->currentcliplinestate)
{
activeShader->muClipLine.Set(-10000000.0, 0, 0, 0);
activeShader->currentcliplinestate = 0;
}
if (mColormapState != activeShader->currentfixedcolormap)
{
float r, g, b;
activeShader->currentfixedcolormap = mColormapState;
if (mColormapState == CM_DEFAULT)
{
activeShader->muFixedColormap.Set(0);
}
else if (mColormapState > CM_DEFAULT && mColormapState < CM_MAXCOLORMAP)
{
if (FGLRenderBuffers::IsEnabled())
{
// When using postprocessing to apply the colormap, we must render the image fullbright here.
activeShader->muFixedColormap.Set(2);
activeShader->muColormapStart.Set(1, 1, 1, 1.f);
}
else
{
FSpecialColormap *scm = &SpecialColormaps[mColormapState - CM_FIRSTSPECIALCOLORMAP];
float m[] = { scm->ColorizeEnd[0] - scm->ColorizeStart[0],
scm->ColorizeEnd[1] - scm->ColorizeStart[1], scm->ColorizeEnd[2] - scm->ColorizeStart[2], 0.f };
activeShader->muFixedColormap.Set(1);
activeShader->muColormapStart.Set(scm->ColorizeStart[0], scm->ColorizeStart[1], scm->ColorizeStart[2], 0.f);
activeShader->muColormapRange.Set(m);
}
}
else if (mColormapState == CM_FOGLAYER)
{
activeShader->muFixedColormap.Set(3);
}
else if (mColormapState == CM_LITE)
{
if (gl_enhanced_nightvision)
{
r = 0.375f, g = 1.0f, b = 0.375f;
}
else
{
r = g = b = 1.f;
}
activeShader->muFixedColormap.Set(2);
activeShader->muColormapStart.Set(r, g, b, 1.f);
}
else if (mColormapState >= CM_TORCH)
{
int flicker = mColormapState - CM_TORCH;
r = (0.8f + (7 - flicker) / 70.0f);
if (r > 1.0f) r = 1.0f;
b = g = r;
if (gl_enhanced_nightvision) b = g * 0.75f;
activeShader->muFixedColormap.Set(2);
activeShader->muColormapStart.Set(r, g, b, 1.f);
}
}
if (mTextureMatrixEnabled)
{
matrixToGL(mTextureMatrix, activeShader->texturematrix_index);
activeShader->currentTextureMatrixState = true;
}
else if (activeShader->currentTextureMatrixState)
{
activeShader->currentTextureMatrixState = false;
matrixToGL(identityMatrix, activeShader->texturematrix_index);
}
if (mModelMatrixEnabled)
{
matrixToGL(mModelMatrix, activeShader->modelmatrix_index);
VSMatrix norm;
norm.computeNormalMatrix(mModelMatrix);
matrixToGL(norm, activeShader->normalmodelmatrix_index);
activeShader->currentModelMatrixState = true;
}
else if (activeShader->currentModelMatrixState)
{
activeShader->currentModelMatrixState = false;
matrixToGL(identityMatrix, activeShader->modelmatrix_index);
matrixToGL(identityMatrix, activeShader->normalmodelmatrix_index);
}
return true;
}
void FSkyVertexBuffer::SetupMatrices(HWDrawInfo *di, FMaterial *tex, float x_offset, float y_offset, bool mirror, int mode, VSMatrix &modelMatrix, VSMatrix &textureMatrix)
{
int texw = tex->TextureWidth();
int texh = tex->TextureHeight();
modelMatrix.loadIdentity();
modelMatrix.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;
if (texh <= 128 && (di->Level->flags & LEVEL_FORCETILEDSKY))
{
modelMatrix.translate(0.f, (-40 + tex->tex->GetSkyOffset() + skyoffset)*skyoffsetfactor, 0.f);
modelMatrix.scale(1.f, 1.2f * 1.17f, 1.f);
yscale = 240.f / texh;
}
else if (texh < 128)
{
// smaller sky textures must be tiled. We restrict it to 128 sky pixels, though
modelMatrix.translate(0.f, -1250.f, 0.f);
modelMatrix.scale(1.f, 128 / 230.f, 1.f);
yscale = float(128 / texh); // intentionally left as integer.
}
else if (texh < 200)
{
modelMatrix.translate(0.f, -1250.f, 0.f);
modelMatrix.scale(1.f, texh / 230.f, 1.f);
}
else if (texh <= 240)
{
modelMatrix.translate(0.f, (200 - texh + tex->tex->GetSkyOffset() + skyoffset)*skyoffsetfactor, 0.f);
modelMatrix.scale(1.f, 1.f + ((texh - 200.f) / 200.f) * 1.17f, 1.f);
}
else
{
modelMatrix.translate(0.f, (-40 + tex->tex->GetSkyOffset() + skyoffset)*skyoffsetfactor, 0.f);
modelMatrix.scale(1.f, 1.2f * 1.17f, 1.f);
yscale = 240.f / texh;
}
textureMatrix.loadIdentity();
textureMatrix.scale(mirror ? -xscale : xscale, yscale, 1.f);
textureMatrix.translate(1.f, y_offset / texh, 1.f);
}