F32 GuiTSCtrl::calculateViewDistance(F32 radius)
{
F32 fov = mLastCameraQuery.fov;
F32 wwidth;
F32 wheight;
F32 renderWidth = (mRenderStyle == RenderStyleStereoSideBySide) ? F32(getWidth())*0.5f : F32(getWidth());
F32 renderHeight = F32(getHeight());
F32 aspectRatio = renderWidth / renderHeight;
// Use the FOV to calculate the viewport height scale
// then generate the width scale from the aspect ratio.
if(!mLastCameraQuery.ortho)
{
wheight = mLastCameraQuery.nearPlane * mTan(mLastCameraQuery.fov / 2.0f);
wwidth = aspectRatio * wheight;
}
else
{
wheight = mLastCameraQuery.fov;
wwidth = aspectRatio * wheight;
}
// Now determine if we should use the width
// fov or height fov.
//
// If the window is taller than it is wide, use the
// width fov to keep the object completely in view.
if (wheight > wwidth)
fov = mAtan( wwidth / mLastCameraQuery.nearPlane ) * 2.0f;
return radius / mTan(fov / 2.0f);
}
void GFXDrawUtil::drawArrow( const GFXStateBlockDesc &desc, const Point3F &start, const Point3F &end, const ColorI &color )
{
GFXTransformSaver saver;
// Direction and length of the arrow.
VectorF dir = end - start;
F32 len = dir.len();
dir.normalize();
len *= 0.2f;
// Base of the cone will be a distance back from the end of the arrow
// proportional to the total distance of the arrow... 0.3f looks about right.
Point3F coneBase = end - dir * len * 0.3f;
// Calculate the radius of the cone given that we want the cone to have
// an angle of 25 degrees (just because it looks good).
F32 coneLen = ( end - coneBase ).len();
F32 coneDiameter = mTan( mDegToRad(25.0f) ) * coneLen;
// Draw the cone on at the arrow's tip.
drawCone( desc, coneBase, end, coneDiameter / 2.0f, color );
// Get the difference in length from
// the start of the cone to the end
// of the cylinder so we can put the
// end of the cylinder right against where
// the cone starts.
Point3F coneDiff = end - coneBase;
// Draw the cylinder.
F32 stickRadius = len * 0.025f;
drawCylinder( desc, start, end - coneDiff, stickRadius, color );
}
static FovPort CalculateFovPortForCanvas(const RectI viewport, const CameraQuery &cameraQuery)
{
F32 wwidth;
F32 wheight;
F32 renderWidth = viewport.extent.x;
F32 renderHeight = viewport.extent.y;
F32 aspectRatio = renderWidth / renderHeight;
// Use the FOV to calculate the viewport height scale
// then generate the width scale from the aspect ratio.
if(!cameraQuery.ortho)
{
wheight = /*cameraQuery.nearPlane * */ mTan(cameraQuery.fov / 2.0f);
wwidth = aspectRatio * wheight;
}
else
{
wheight = cameraQuery.fov;
wwidth = aspectRatio * wheight;
}
F32 hscale = wwidth * 2.0f / renderWidth;
F32 vscale = wheight * 2.0f / renderHeight;
F32 left = 0.0f * hscale - wwidth;
F32 right = renderWidth * hscale - wwidth;
F32 top = wheight - vscale * 0.0f;
F32 bottom = wheight - vscale * renderHeight;
FovPort fovPort;
fovPort.upTan = top;
fovPort.downTan = -bottom;
fovPort.leftTan = -left;
fovPort.rightTan = right;
return fovPort;
}
F32 TimeOfDay::_calcAzimuth( F32 lat, F32 dec, F32 mer )
{
// Add PI to normalize this from the range of -PI/2 to PI/2 to 0 to 2 * PI;
return mAtan2( mSin(mer), mCos(mer) * mSin(lat) - mTan(dec) * mCos(lat) ) + M_PI_F;
}
void GuiTSCtrl::onRender(Point2I offset, const RectI &updateRect)
{
// Save the current transforms so we can restore
// it for child control rendering below.
GFXTransformSaver saver;
bool renderingToTarget = false;
if(!processCameraQuery(&mLastCameraQuery))
{
// We have no camera, but render the GUI children
// anyway. This makes editing GuiTSCtrl derived
// controls easier in the GuiEditor.
renderChildControls( offset, updateRect );
return;
}
GFXTargetRef origTarget = GFX->getActiveRenderTarget();
// Set up the appropriate render style
U32 prevRenderStyle = GFX->getCurrentRenderStyle();
Point2F prevProjectionOffset = GFX->getCurrentProjectionOffset();
Point2I renderSize = getExtent();
if(mRenderStyle == RenderStyleStereoSideBySide)
{
GFX->setCurrentRenderStyle(GFXDevice::RS_StereoSideBySide);
GFX->setCurrentProjectionOffset(mLastCameraQuery.projectionOffset);
GFX->setStereoEyeOffsets(mLastCameraQuery.eyeOffset);
if (!mLastCameraQuery.hasStereoTargets)
{
// Need to calculate our current viewport here
mLastCameraQuery.stereoViewports[0] = updateRect;
mLastCameraQuery.stereoViewports[0].extent.x /= 2;
mLastCameraQuery.stereoViewports[1] = mLastCameraQuery.stereoViewports[0];
mLastCameraQuery.stereoViewports[1].point.x += mLastCameraQuery.stereoViewports[1].extent.x;
}
if (!mLastCameraQuery.hasFovPort)
{
// Need to make our own fovPort
mLastCameraQuery.fovPort[0] = CalculateFovPortForCanvas(mLastCameraQuery.stereoViewports[0], mLastCameraQuery);
mLastCameraQuery.fovPort[1] = CalculateFovPortForCanvas(mLastCameraQuery.stereoViewports[1], mLastCameraQuery);
}
GFX->setStereoFovPort(mLastCameraQuery.fovPort); // NOTE: this specifies fov for BOTH eyes
GFX->setSteroViewports(mLastCameraQuery.stereoViewports);
GFX->setStereoTargets(mLastCameraQuery.stereoTargets);
MatrixF myTransforms[2];
if (smUseLatestDisplayTransform)
{
// Use the view matrix determined from the display device
myTransforms[0] = mLastCameraQuery.eyeTransforms[0];
myTransforms[1] = mLastCameraQuery.eyeTransforms[1];
}
else
{
// Use the view matrix determined from the control object
myTransforms[0] = mLastCameraQuery.cameraMatrix;
myTransforms[1] = mLastCameraQuery.cameraMatrix;
QuatF qrot = mLastCameraQuery.cameraMatrix;
Point3F pos = mLastCameraQuery.cameraMatrix.getPosition();
Point3F rotEyePos;
myTransforms[0].setPosition(pos + qrot.mulP(mLastCameraQuery.eyeOffset[0], &rotEyePos));
myTransforms[1].setPosition(pos + qrot.mulP(mLastCameraQuery.eyeOffset[1], &rotEyePos));
}
GFX->setStereoEyeTransforms(myTransforms);
// Allow render size to originate from the render target
if (mLastCameraQuery.stereoTargets[0])
{
renderSize = mLastCameraQuery.stereoViewports[0].extent;
renderingToTarget = true;
}
}
else
{
GFX->setCurrentRenderStyle(GFXDevice::RS_Standard);
}
if ( mReflectPriority > 0 )
{
// Get the total reflection priority.
F32 totalPriority = 0;
for ( U32 i=0; i < smAwakeTSCtrls.size(); i++ )
if ( smAwakeTSCtrls[i]->isVisible() )
totalPriority += smAwakeTSCtrls[i]->mReflectPriority;
REFLECTMGR->update( mReflectPriority / totalPriority,
getExtent(),
mLastCameraQuery );
}
if(mForceFOV != 0)
mLastCameraQuery.fov = mDegToRad(mForceFOV);
if(mCameraZRot)
{
MatrixF rotMat(EulerF(0, 0, mDegToRad(mCameraZRot)));
mLastCameraQuery.cameraMatrix.mul(rotMat);
}
Frustum frustum;
if(mRenderStyle == RenderStyleStereoSideBySide)
{
// NOTE: these calculations are essentially overridden later by the fov port settings when rendering each eye.
MathUtils::makeFovPortFrustum(&frustum, mLastCameraQuery.ortho, mLastCameraQuery.nearPlane, mLastCameraQuery.farPlane, mLastCameraQuery.fovPort[0]);
}
else
{
// set up the camera and viewport stuff:
F32 wwidth;
F32 wheight;
F32 renderWidth = F32(renderSize.x);
F32 renderHeight = F32(renderSize.y);
F32 aspectRatio = renderWidth / renderHeight;
// Use the FOV to calculate the viewport height scale
// then generate the width scale from the aspect ratio.
if(!mLastCameraQuery.ortho)
{
wheight = mLastCameraQuery.nearPlane * mTan(mLastCameraQuery.fov / 2.0f);
wwidth = aspectRatio * wheight;
}
else
{
wheight = mLastCameraQuery.fov;
wwidth = aspectRatio * wheight;
}
F32 hscale = wwidth * 2.0f / renderWidth;
F32 vscale = wheight * 2.0f / renderHeight;
F32 left = (updateRect.point.x - offset.x) * hscale - wwidth;
F32 right = (updateRect.point.x + updateRect.extent.x - offset.x) * hscale - wwidth;
F32 top = wheight - vscale * (updateRect.point.y - offset.y);
F32 bottom = wheight - vscale * (updateRect.point.y + updateRect.extent.y - offset.y);
frustum.set( mLastCameraQuery.ortho, left, right, top, bottom, mLastCameraQuery.nearPlane, mLastCameraQuery.farPlane );
}
// Manipulate the frustum for tiled screenshots
const bool screenShotMode = gScreenShot && gScreenShot->isPending();
if ( screenShotMode )
{
gScreenShot->tileFrustum( frustum );
GFX->setViewMatrix(MatrixF::Identity);
}
RectI tempRect = updateRect;
if (!renderingToTarget)
{
#ifdef TORQUE_OS_MAC
Point2I screensize = getRoot()->getWindowSize();
tempRect.point.y = screensize.y - (tempRect.point.y + tempRect.extent.y);
#endif
GFX->setViewport( tempRect );
}
else
{
// Activate stereo RT
GFX->activateStereoTarget(-1);
}
// Clear the zBuffer so GUI doesn't hose object rendering accidentally
GFX->clear( GFXClearZBuffer , ColorI(20,20,20), 1.0f, 0 );
//GFX->clear( GFXClearTarget, ColorI(255,0,0), 1.0f, 0);
GFX->setFrustum( frustum );
if(mLastCameraQuery.ortho)
{
mOrthoWidth = frustum.getWidth();
mOrthoHeight = frustum.getHeight();
}
// We're going to be displaying this render at size of this control in
// pixels - let the scene know so that it can calculate e.g. reflections
// correctly for that final display result.
gClientSceneGraph->setDisplayTargetResolution(renderSize);
// Set the GFX world matrix to the world-to-camera transform, but don't
// change the cameraMatrix in mLastCameraQuery. This is because
// mLastCameraQuery.cameraMatrix is supposed to contain the camera-to-world
// transform. In-place invert would save a copy but mess up any GUIs that
// depend on that value.
MatrixF worldToCamera = mLastCameraQuery.cameraMatrix;
worldToCamera.inverse();
GFX->setWorldMatrix( worldToCamera );
mSaveProjection = GFX->getProjectionMatrix();
mSaveModelview = GFX->getWorldMatrix();
mSaveViewport = updateRect;
mSaveWorldToScreenScale = GFX->getWorldToScreenScale();
mSaveFrustum = GFX->getFrustum();
mSaveFrustum.setTransform( mLastCameraQuery.cameraMatrix );
// Set the default non-clip projection as some
// objects depend on this even in non-reflect cases.
gClientSceneGraph->setNonClipProjection( mSaveProjection );
// Give the post effect manager the worldToCamera, and cameraToScreen matrices
PFXMGR->setFrameMatrices( mSaveModelview, mSaveProjection );
renderWorld(updateRect);
DebugDrawer::get()->render();
// Render the canvas overlay if its available
if (mRenderStyle == RenderStyleStereoSideBySide && mStereoGuiTarget.getPointer())
{
GFXDEBUGEVENT_SCOPE( StereoGui_Render, ColorI( 255, 0, 0 ) );
MatrixF proj(1);
Frustum originalFrustum = GFX->getFrustum();
GFXTextureObject *texObject = mStereoGuiTarget->getTexture(0);
const FovPort *currentFovPort = GFX->getStereoFovPort();
const MatrixF *eyeTransforms = GFX->getStereoEyeTransforms();
const Point3F *eyeOffset = GFX->getStereoEyeOffsets();
Frustum gfxFrustum = originalFrustum;
for (U32 i=0; i<2; i++)
{
GFX->activateStereoTarget(i);
MathUtils::makeFovPortFrustum(&gfxFrustum, true, gfxFrustum.getNearDist(), gfxFrustum.getFarDist(), currentFovPort[i], eyeTransforms[i]);
GFX->setFrustum(gfxFrustum);
MatrixF eyeWorldTrans(1);
eyeWorldTrans.setPosition(Point3F(eyeOffset[i].x,eyeOffset[i].y,eyeOffset[i].z));
MatrixF eyeWorld(1);
eyeWorld.mul(eyeWorldTrans);
eyeWorld.inverse();
GFX->setWorldMatrix(eyeWorld);
GFX->setViewMatrix(MatrixF::Identity);
if (!mStereoOverlayVB.getPointer())
{
mStereoOverlayVB.set(GFX, 4, GFXBufferTypeStatic);
GFXVertexPCT *verts = mStereoOverlayVB.lock(0, 4);
F32 texLeft = 0.0f;
F32 texRight = 1.0f;
F32 texTop = 1.0f;
F32 texBottom = 0.0f;
F32 rectRatio = gfxFrustum.getWidth() / gfxFrustum.getHeight();
F32 rectWidth = gfxFrustum.getWidth() * TS_OVERLAY_SCREEN_WIDTH;
F32 rectHeight = rectWidth * rectRatio;
F32 screenLeft = -rectWidth * 0.5;
F32 screenRight = rectWidth * 0.5;
F32 screenTop = -rectHeight * 0.5;
F32 screenBottom = rectHeight * 0.5;
const F32 fillConv = 0.0f;
const F32 frustumDepthAdjusted = gfxFrustum.getNearDist() + 0.012;
verts[0].point.set( screenLeft - fillConv, frustumDepthAdjusted, screenTop - fillConv );
verts[1].point.set( screenRight - fillConv, frustumDepthAdjusted, screenTop - fillConv );
verts[2].point.set( screenLeft - fillConv, frustumDepthAdjusted, screenBottom - fillConv );
verts[3].point.set( screenRight - fillConv, frustumDepthAdjusted, screenBottom - fillConv );
verts[0].color = verts[1].color = verts[2].color = verts[3].color = ColorI(255,255,255,255);
verts[0].texCoord.set( texLeft, texTop );
verts[1].texCoord.set( texRight, texTop );
verts[2].texCoord.set( texLeft, texBottom );
verts[3].texCoord.set( texRight, texBottom );
mStereoOverlayVB.unlock();
}
if (!mStereoGuiSB.getPointer())
{
// DrawBitmapStretchSR
GFXStateBlockDesc bitmapStretchSR;
bitmapStretchSR.setCullMode(GFXCullNone);
bitmapStretchSR.setZReadWrite(false, false);
bitmapStretchSR.setBlend(true, GFXBlendSrcAlpha, GFXBlendInvSrcAlpha);
bitmapStretchSR.samplersDefined = true;
bitmapStretchSR.samplers[0] = GFXSamplerStateDesc::getClampLinear();
bitmapStretchSR.samplers[0].minFilter = GFXTextureFilterPoint;
bitmapStretchSR.samplers[0].mipFilter = GFXTextureFilterPoint;
bitmapStretchSR.samplers[0].magFilter = GFXTextureFilterPoint;
mStereoGuiSB = GFX->createStateBlock(bitmapStretchSR);
}
GFX->setVertexBuffer(mStereoOverlayVB);
GFX->setStateBlock(mStereoGuiSB);
GFX->setTexture( 0, texObject );
GFX->setupGenericShaders( GFXDevice::GSModColorTexture );
GFX->drawPrimitive( GFXTriangleStrip, 0, 2 );
}
}
// Restore the previous matrix state before
// we begin rendering the child controls.
saver.restore();
// Restore the render style and any stereo parameters
GFX->setActiveRenderTarget(origTarget);
GFX->setCurrentRenderStyle(prevRenderStyle);
GFX->setCurrentProjectionOffset(prevProjectionOffset);
if(mRenderStyle == RenderStyleStereoSideBySide && gLastStereoTexture)
{
GFX->setClipRect(updateRect);
GFX->getDrawUtil()->drawBitmapStretch(gLastStereoTexture, updateRect);
}
// Allow subclasses to render 2D elements.
GFX->setClipRect(updateRect);
renderGui( offset, updateRect );
if (shouldRenderChildControls())
{
renderChildControls(offset, updateRect);
}
smFrameCount++;
}
void GuiTSCtrl::onRender(Point2I offset, const RectI &updateRect)
{
// Save the current transforms so we can restore
// it for child control rendering below.
GFXTransformSaver saver;
if(!processCameraQuery(&mLastCameraQuery))
{
// We have no camera, but render the GUI children
// anyway. This makes editing GuiTSCtrl derived
// controls easier in the GuiEditor.
renderChildControls( offset, updateRect );
return;
}
// Set up the appropriate render style
U32 prevRenderStyle = GFX->getCurrentRenderStyle();
Point2F prevProjectionOffset = GFX->getCurrentProjectionOffset();
Point3F prevEyeOffset = GFX->getStereoEyeOffset();
if(mRenderStyle == RenderStyleStereoSideBySide)
{
GFX->setCurrentRenderStyle(GFXDevice::RS_StereoSideBySide);
GFX->setCurrentProjectionOffset(mLastCameraQuery.projectionOffset);
GFX->setStereoEyeOffset(mLastCameraQuery.eyeOffset);
}
else
{
GFX->setCurrentRenderStyle(GFXDevice::RS_Standard);
}
if ( mReflectPriority > 0 )
{
// Get the total reflection priority.
F32 totalPriority = 0;
for ( U32 i=0; i < smAwakeTSCtrls.size(); i++ )
if ( smAwakeTSCtrls[i]->isVisible() )
totalPriority += smAwakeTSCtrls[i]->mReflectPriority;
REFLECTMGR->update( mReflectPriority / totalPriority,
getExtent(),
mLastCameraQuery );
}
if(mForceFOV != 0)
mLastCameraQuery.fov = mDegToRad(mForceFOV);
if(mCameraZRot)
{
MatrixF rotMat(EulerF(0, 0, mDegToRad(mCameraZRot)));
mLastCameraQuery.cameraMatrix.mul(rotMat);
}
// set up the camera and viewport stuff:
F32 wwidth;
F32 wheight;
F32 renderWidth = (mRenderStyle == RenderStyleStereoSideBySide) ? F32(getWidth())*0.5f : F32(getWidth());
F32 renderHeight = F32(getHeight());
F32 aspectRatio = renderWidth / renderHeight;
// Use the FOV to calculate the viewport height scale
// then generate the width scale from the aspect ratio.
if(!mLastCameraQuery.ortho)
{
wheight = mLastCameraQuery.nearPlane * mTan(mLastCameraQuery.fov / 2.0f);
wwidth = aspectRatio * wheight;
}
else
{
wheight = mLastCameraQuery.fov;
wwidth = aspectRatio * wheight;
}
F32 hscale = wwidth * 2.0f / renderWidth;
F32 vscale = wheight * 2.0f / renderHeight;
Frustum frustum;
if(mRenderStyle == RenderStyleStereoSideBySide)
{
F32 left = 0.0f * hscale - wwidth;
F32 right = renderWidth * hscale - wwidth;
F32 top = wheight - vscale * 0.0f;
F32 bottom = wheight - vscale * renderHeight;
frustum.set( mLastCameraQuery.ortho, left, right, top, bottom, mLastCameraQuery.nearPlane, mLastCameraQuery.farPlane );
}
else
{
F32 left = (updateRect.point.x - offset.x) * hscale - wwidth;
F32 right = (updateRect.point.x + updateRect.extent.x - offset.x) * hscale - wwidth;
F32 top = wheight - vscale * (updateRect.point.y - offset.y);
F32 bottom = wheight - vscale * (updateRect.point.y + updateRect.extent.y - offset.y);
frustum.set( mLastCameraQuery.ortho, left, right, top, bottom, mLastCameraQuery.nearPlane, mLastCameraQuery.farPlane );
}
// Manipulate the frustum for tiled screenshots
const bool screenShotMode = gScreenShot && gScreenShot->isPending();
if ( screenShotMode )
{
gScreenShot->tileFrustum( frustum );
GFX->setViewMatrix(MatrixF::Identity);
}
RectI tempRect = updateRect;
#ifdef TORQUE_OS_MAC
Point2I screensize = getRoot()->getWindowSize();
tempRect.point.y = screensize.y - (tempRect.point.y + tempRect.extent.y);
#endif
GFX->setViewport( tempRect );
// Clear the zBuffer so GUI doesn't hose object rendering accidentally
GFX->clear( GFXClearZBuffer , ColorI(20,20,20), 1.0f, 0 );
GFX->setFrustum( frustum );
if(mLastCameraQuery.ortho)
{
mOrthoWidth = frustum.getWidth();
mOrthoHeight = frustum.getHeight();
}
// We're going to be displaying this render at size of this control in
// pixels - let the scene know so that it can calculate e.g. reflections
// correctly for that final display result.
gClientSceneGraph->setDisplayTargetResolution(getExtent());
// Set the GFX world matrix to the world-to-camera transform, but don't
// change the cameraMatrix in mLastCameraQuery. This is because
// mLastCameraQuery.cameraMatrix is supposed to contain the camera-to-world
// transform. In-place invert would save a copy but mess up any GUIs that
// depend on that value.
MatrixF worldToCamera = mLastCameraQuery.cameraMatrix;
worldToCamera.inverse();
GFX->setWorldMatrix( worldToCamera );
mSaveProjection = GFX->getProjectionMatrix();
mSaveModelview = GFX->getWorldMatrix();
mSaveViewport = updateRect;
mSaveWorldToScreenScale = GFX->getWorldToScreenScale();
mSaveFrustum = GFX->getFrustum();
mSaveFrustum.setTransform( mLastCameraQuery.cameraMatrix );
// Set the default non-clip projection as some
// objects depend on this even in non-reflect cases.
gClientSceneGraph->setNonClipProjection( mSaveProjection );
// Give the post effect manager the worldToCamera, and cameraToScreen matrices
PFXMGR->setFrameMatrices( mSaveModelview, mSaveProjection );
renderWorld(updateRect);
DebugDrawer::get()->render();
// Restore the previous matrix state before
// we begin rendering the child controls.
saver.restore();
// Restore the render style and any stereo parameters
GFX->setCurrentRenderStyle(prevRenderStyle);
GFX->setCurrentProjectionOffset(prevProjectionOffset);
GFX->setStereoEyeOffset(prevEyeOffset);
// Allow subclasses to render 2D elements.
GFX->setClipRect(updateRect);
renderGui( offset, updateRect );
renderChildControls(offset, updateRect);
smFrameCount++;
}
