503 lines
16 KiB
C++
Executable File
503 lines
16 KiB
C++
Executable File
//-----------------------------------------------------------------------------
|
|
// Torque Game Engine
|
|
// Copyright (C) GarageGames.com, Inc.
|
|
//
|
|
// 09/03/03 MM: Changes made by JF to use a stencil mask for mirrors.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include "interior/mirrorSubObject.h"
|
|
#include "interior/interiorInstance.h"
|
|
#include "interior/interior.h"
|
|
#include "dgl/materialList.h"
|
|
#include "core/stream.h"
|
|
#include "dgl/dgl.h"
|
|
#include "sceneGraph/sgUtil.h"
|
|
|
|
|
|
IMPLEMENT_CONOBJECT(MirrorSubObject);
|
|
|
|
#include "platform/platformVideo.h"
|
|
#include "sceneGraph/sceneGraph.h"
|
|
|
|
//--------------------------------------------------------------------------
|
|
MirrorSubObject::MirrorSubObject()
|
|
{
|
|
mTypeMask = StaticObjectType;
|
|
|
|
mInitialized = false;
|
|
}
|
|
|
|
MirrorSubObject::~MirrorSubObject()
|
|
{
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
void MirrorSubObject::initPersistFields()
|
|
{
|
|
Parent::initPersistFields();
|
|
|
|
//
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
void MirrorSubObject::renderObject(SceneState* state, SceneRenderImage* image)
|
|
{
|
|
// the surface is rendered when the portal is closed
|
|
return;
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
void MirrorSubObject::transformModelview(const U32 portalIndex, const MatrixF& oldMV,
|
|
MatrixF* pNewMV)
|
|
{
|
|
AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
|
|
AssertFatal(portalIndex == 0, "Error, we only have one portal!");
|
|
|
|
*pNewMV = oldMV;
|
|
pNewMV->mul(mReflectionMatrix);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
void MirrorSubObject::transformPosition(const U32 portalIndex, Point3F& ioPosition)
|
|
{
|
|
AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
|
|
AssertFatal(portalIndex == 0, "Error, we only have one portal!");
|
|
|
|
mReflectionMatrix.mulP(ioPosition);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
bool MirrorSubObject::computeNewFrustum(const U32 portalIndex,
|
|
const F64* oldFrustum,
|
|
const F64 nearPlane,
|
|
const F64 farPlane,
|
|
const RectI& oldViewport,
|
|
F64* newFrustum,
|
|
RectI& newViewport,
|
|
const bool flippedMatrix)
|
|
{
|
|
AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
|
|
AssertFatal(portalIndex == 0, "Error, mirrortests only have one portal!");
|
|
|
|
Interior* interior = getInstance()->getDetailLevel(mDetailLevel);
|
|
|
|
static Vector<SGWinding> mirrorWindings;
|
|
mirrorWindings.setSize(surfaceCount);
|
|
|
|
for (U32 i = 0; i < surfaceCount; i++) {
|
|
SGWinding& rSGWinding = mirrorWindings[i];
|
|
const Interior::Surface& rSurface = interior->mSurfaces[surfaceStart + i];
|
|
|
|
U32 fanIndices[32];
|
|
U32 numFanIndices = 0;
|
|
interior->collisionFanFromSurface(rSurface, fanIndices, &numFanIndices);
|
|
|
|
for (U32 j = 0; j < numFanIndices; j++)
|
|
rSGWinding.points[j] = interior->mPoints[fanIndices[j]].point;
|
|
rSGWinding.numPoints = numFanIndices;
|
|
}
|
|
|
|
MatrixF finalModelView;
|
|
dglGetModelview(&finalModelView);
|
|
finalModelView.mul(getSOTransform());
|
|
finalModelView.scale(getSOScale());
|
|
|
|
return sgComputeNewFrustum(oldFrustum, nearPlane, farPlane,
|
|
oldViewport,
|
|
mirrorWindings.address(), mirrorWindings.size(),
|
|
finalModelView,
|
|
newFrustum, newViewport,
|
|
flippedMatrix);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------
|
|
void MirrorSubObject::openPortal(const U32 portalIndex,
|
|
SceneState* pCurrState,
|
|
SceneState* pParentState)
|
|
{
|
|
AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
|
|
AssertFatal(portalIndex == 0, "Error, mirrortests only have one portal!");
|
|
|
|
if (mZone == 0)
|
|
pParentState->setupZoneProjection(getInstance()->getCurrZone(0));
|
|
else
|
|
pParentState->setupZoneProjection(mZone + getInstance()->getZoneRangeStart() -
|
|
1);
|
|
|
|
// setup transformation
|
|
glPushMatrix();
|
|
dglMultMatrix(&getSOTransform());
|
|
glScalef(getSOScale().x, getSOScale().y, getSOScale().z);
|
|
|
|
// setup stencil buffer:
|
|
glClearStencil(0x0);
|
|
glStencilMask(~0u);
|
|
glEnable(GL_STENCIL_TEST);
|
|
|
|
static U32 lastStateKey = 0;
|
|
U32 stateKey = gClientSceneGraph->getStateKey();
|
|
|
|
// dont clear the stencil for every portal
|
|
if(lastStateKey != stateKey)
|
|
{
|
|
lastStateKey = stateKey;
|
|
glClear(GL_STENCIL_BUFFER_BIT);
|
|
}
|
|
|
|
// clear with the fog color
|
|
ColorF fogColor = gClientSceneGraph->getFogColor();
|
|
glColor3f(fogColor.red, fogColor.green, fogColor.blue);
|
|
|
|
Interior * interior = getInstance()->getDetailLevel(mDetailLevel);
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glVertexPointer(3, GL_FLOAT, sizeof(ItrPaddedPoint), interior->mPoints.address());
|
|
|
|
|
|
// render the visible surface into the stencil buffer (also render the fog color
|
|
// since terrain may not be rendered and it assumes a fog clear)
|
|
glStencilFunc(GL_ALWAYS, 1, 0xffffffff);
|
|
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
|
|
|
|
for (U32 i = 0; i < surfaceCount; i++)
|
|
{
|
|
glDrawElements(GL_TRIANGLE_STRIP,
|
|
interior->mSurfaces[surfaceStart+i].windingCount,
|
|
GL_UNSIGNED_INT,
|
|
&interior->mWindings[interior->mSurfaces[surfaceStart+i].windingStart]);
|
|
}
|
|
|
|
// now clear the visible surface depth (use stencil). disable color buffers (already
|
|
// rendered fog in previous step).
|
|
glDepthRange(1, 1);
|
|
glDepthFunc(GL_ALWAYS);
|
|
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
|
|
|
|
glStencilFunc(GL_EQUAL, 1, 0xffffffff);
|
|
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
|
|
|
|
for (U32 i = 0; i < surfaceCount; i++)
|
|
{
|
|
glDrawElements(GL_TRIANGLE_STRIP,
|
|
interior->mSurfaces[surfaceStart+i].windingCount,
|
|
GL_UNSIGNED_INT,
|
|
&interior->mWindings[interior->mSurfaces[surfaceStart+i].windingStart]);
|
|
}
|
|
|
|
// reset states (stencil is setup correctly)
|
|
glDepthFunc(GL_LEQUAL);
|
|
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
|
glDepthRange(0, 1);
|
|
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
|
|
// reset transform
|
|
glPopMatrix();
|
|
dglSetCanonicalState();
|
|
}
|
|
|
|
void MirrorSubObject::closePortal(const U32 portalIndex,
|
|
SceneState* pCurrState,
|
|
SceneState* pParentState)
|
|
{
|
|
AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
|
|
AssertFatal(portalIndex == 0, "Error, mirrortests only have one portal!");
|
|
|
|
// setup transformation
|
|
glPushMatrix();
|
|
dglMultMatrix(&getSOTransform());
|
|
glScalef(getSOScale().x, getSOScale().y, getSOScale().z);
|
|
|
|
// update depth over portal
|
|
Interior * interior = getInstance()->getDetailLevel(mDetailLevel);
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glVertexPointer(3, GL_FLOAT, sizeof(ItrPaddedPoint), interior->mPoints.address());
|
|
|
|
|
|
// want to clear stencil value
|
|
glStencilFunc(GL_EQUAL, 1, 0xffffffff);
|
|
glStencilOp(GL_KEEP, GL_KEEP, GL_ZERO);
|
|
|
|
// render the alpha surface
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
|
|
glActiveTextureARB(GL_TEXTURE0_ARB);
|
|
glEnable(GL_TEXTURE_2D);
|
|
|
|
glEnable(GL_TEXTURE_GEN_S);
|
|
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
|
|
glEnable(GL_TEXTURE_GEN_T);
|
|
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
|
|
|
|
glActiveTextureARB(GL_TEXTURE1_ARB);
|
|
glEnable(GL_TEXTURE_2D);
|
|
|
|
glEnable(GL_TEXTURE_GEN_S);
|
|
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
|
|
glEnable(GL_TEXTURE_GEN_T);
|
|
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
|
|
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
|
|
|
|
glActiveTextureARB(GL_TEXTURE0_ARB);
|
|
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
|
|
|
|
glBindTexture(GL_TEXTURE_2D, interior->mMaterialList->getMaterial(interior->mSurfaces[surfaceStart].textureIndex).getGLName());
|
|
|
|
|
|
glActiveTextureARB(GL_TEXTURE1_ARB);
|
|
Vector<U8>* pLMapIndices = &interior->mNormalLMapIndices;
|
|
U8 baseIndex = (*pLMapIndices)[surfaceStart];
|
|
TextureHandle *tex = gInteriorLMManager.getHandle( interior->mLMHandle, getInstance()->getLMHandle(), baseIndex);
|
|
glBindTexture(GL_TEXTURE_2D, tex->getGLName() );
|
|
|
|
|
|
|
|
glActiveTextureARB(GL_TEXTURE0_ARB);
|
|
glTexGenfv(GL_S, GL_OBJECT_PLANE, (GLfloat*)interior->mTexGenEQs[interior->mSurfaces[surfaceStart].texGenIndex].planeX);
|
|
glTexGenfv(GL_T, GL_OBJECT_PLANE, (GLfloat*)interior->mTexGenEQs[interior->mSurfaces[surfaceStart].texGenIndex].planeY);
|
|
|
|
glActiveTextureARB(GL_TEXTURE1_ARB);
|
|
|
|
|
|
glColor4f(1, 1, 1, mAlphaLevel);
|
|
|
|
for (U32 i = 0; i < surfaceCount; i++) {
|
|
|
|
glTexGenfv(GL_S, GL_OBJECT_PLANE, (GLfloat*)interior->mLMTexGenEQs[surfaceStart+i].planeX);
|
|
glTexGenfv(GL_T, GL_OBJECT_PLANE, (GLfloat*)interior->mLMTexGenEQs[surfaceStart+i].planeY);
|
|
|
|
|
|
glDrawElements(GL_TRIANGLE_STRIP,
|
|
interior->mSurfaces[surfaceStart+i].windingCount,
|
|
GL_UNSIGNED_INT,
|
|
&interior->mWindings[interior->mSurfaces[surfaceStart+i].windingStart]);
|
|
}
|
|
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
|
|
glActiveTextureARB(GL_TEXTURE0_ARB);
|
|
glDisable(GL_TEXTURE_GEN_S);
|
|
glDisable(GL_TEXTURE_GEN_T);
|
|
|
|
glActiveTextureARB(GL_TEXTURE1_ARB);
|
|
glDisable(GL_TEXTURE_GEN_S);
|
|
glDisable(GL_TEXTURE_GEN_T);
|
|
glDisable(GL_TEXTURE_2D);
|
|
|
|
glActiveTextureARB(GL_TEXTURE0_ARB);
|
|
|
|
glDisable(GL_TEXTURE_2D);
|
|
glDisable(GL_BLEND);
|
|
|
|
glDepthFunc(GL_LEQUAL);
|
|
|
|
// reset transform
|
|
glPopMatrix();
|
|
|
|
// disable stencil test
|
|
glDisable(GL_STENCIL_TEST);
|
|
|
|
dglSetCanonicalState();
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
|
|
void MirrorSubObject::getWSPortalPlane(const U32 portalIndex, PlaneF* pPlane)
|
|
{
|
|
AssertFatal(portalIndex == 0, "Error, mirrortests only have one portal!");
|
|
|
|
Interior* interior = getInstance()->getDetailLevel(mDetailLevel);
|
|
const Interior::Surface& rSurface = interior->mSurfaces[surfaceStart];
|
|
|
|
PlaneF temp = interior->getPlane(rSurface.planeIndex);
|
|
if (Interior::planeIsFlipped(rSurface.planeIndex))
|
|
temp.neg();
|
|
|
|
mTransformPlane(getSOTransform(), getSOScale(), temp, pPlane);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------
|
|
U32 MirrorSubObject::getSubObjectKey() const
|
|
{
|
|
return InteriorSubObject::MirrorSubObjectKey;
|
|
}
|
|
|
|
|
|
bool MirrorSubObject::_readISO(Stream& stream)
|
|
{
|
|
AssertFatal(isInitialized() == false, "Error, should not be initialized here!");
|
|
|
|
if (Parent::_readISO(stream) == false)
|
|
return false;
|
|
|
|
stream.read(&mDetailLevel);
|
|
stream.read(&mZone);
|
|
stream.read(&mAlphaLevel);
|
|
stream.read(&surfaceCount);
|
|
stream.read(&surfaceStart);
|
|
|
|
stream.read(&mCentroid.x);
|
|
stream.read(&mCentroid.y);
|
|
stream.read(&mCentroid.z);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool MirrorSubObject::_writeISO(Stream& stream) const
|
|
{
|
|
if (Parent::_writeISO(stream) == false)
|
|
return false;
|
|
|
|
stream.write(mDetailLevel);
|
|
stream.write(mZone);
|
|
stream.write(mAlphaLevel);
|
|
stream.write(surfaceCount);
|
|
stream.write(surfaceStart);
|
|
|
|
stream.write(mCentroid.x);
|
|
stream.write(mCentroid.y);
|
|
stream.write(mCentroid.z);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
SubObjectRenderImage* MirrorSubObject::getRenderImage(SceneState* state,
|
|
const Point3F& osPoint)
|
|
{
|
|
if (isInitialized() == false)
|
|
setupTransforms();
|
|
|
|
// Check to make sure that we´re on the right side of the plane...
|
|
Interior* interior = getInstance()->getDetailLevel(mDetailLevel);
|
|
const Interior::Surface& rSurface = interior->mSurfaces[surfaceStart];
|
|
|
|
PlaneF plane = interior->getPlane(rSurface.planeIndex);
|
|
if (Interior::planeIsFlipped(rSurface.planeIndex))
|
|
plane.neg();
|
|
|
|
if (plane.whichSide(osPoint) != PlaneF::Front)
|
|
return NULL;
|
|
|
|
// On the right side, guess we have to return an image and a portal...
|
|
//
|
|
SubObjectRenderImage* ri = new SubObjectRenderImage;
|
|
|
|
ri->obj = this;
|
|
ri->isTranslucent = false;
|
|
|
|
U32 realZone;
|
|
if (getInstance()->getZoneRangeStart() == 0xFFFFFFFF || mZone == 0) {
|
|
realZone = getInstance()->getCurrZone(0);
|
|
} else {
|
|
realZone = getInstance()->getZoneRangeStart() + mZone - 1;
|
|
}
|
|
|
|
// Create the WS start point. this will be the centroid of the first poly in os space,
|
|
// transformed out for the sceneGraph, with a smidge of our normal added in to pull
|
|
// it off the surface plane...
|
|
|
|
Point3F startPoint = mCentroid;
|
|
PlaneF temp = interior->getPlane(rSurface.planeIndex);
|
|
if (Interior::planeIsFlipped(rSurface.planeIndex))
|
|
temp.neg();
|
|
startPoint += Point3F(temp.x, temp.y, temp.z) * 0.01f;
|
|
getSOTransform().mulP(startPoint);
|
|
startPoint.convolve(getSOScale());
|
|
|
|
state->insertTransformPortal(this, 0, realZone, startPoint, true);
|
|
|
|
return ri;
|
|
}
|
|
|
|
|
|
bool MirrorSubObject::renderDetailDependant() const
|
|
{
|
|
return true;
|
|
}
|
|
|
|
|
|
U32 MirrorSubObject::getZone() const
|
|
{
|
|
return mZone;
|
|
}
|
|
|
|
|
|
void MirrorSubObject::setupTransforms()
|
|
{
|
|
mInitialized = true;
|
|
|
|
Interior* interior = getInstance()->getDetailLevel(mDetailLevel);
|
|
const Interior::Surface& rSurface = interior->mSurfaces[surfaceStart];
|
|
|
|
for( U32 i=0; i<surfaceCount; i++ )
|
|
{
|
|
Interior::Surface& surface = interior->mSurfaces[surfaceStart + i];
|
|
//surface.mirrored = true;
|
|
}
|
|
|
|
|
|
|
|
PlaneF plane = interior->getPlane(rSurface.planeIndex);
|
|
if (Interior::planeIsFlipped(rSurface.planeIndex))
|
|
plane.neg();
|
|
|
|
Point3F n(plane.x, plane.y, plane.z);
|
|
Point3F q = n;
|
|
q *= -plane.d;
|
|
|
|
MatrixF t(true);
|
|
t.scale(getSOScale());
|
|
t.mul(getSOTransform());
|
|
|
|
t.mulV(n);
|
|
t.mulP(q);
|
|
|
|
F32* ra = mReflectionMatrix;
|
|
|
|
ra[0] = 1.0f - 2.0f*(n.x*n.x); ra[1] = 0.0f - 2.0f*(n.x*n.y); ra[2] = 0.0f - 2.0f*(n.x*n.z); ra[3] = 0.0f;
|
|
ra[4] = 0.0f - 2.0f*(n.y*n.x); ra[5] = 1.0f - 2.0f*(n.y*n.y); ra[6] = 0.0f - 2.0f*(n.y*n.z); ra[7] = 0.0f;
|
|
ra[8] = 0.0f - 2.0f*(n.z*n.x); ra[9] = 0.0f - 2.0f*(n.z*n.y); ra[10] = 1.0f - 2.0f*(n.z*n.z); ra[11] = 0.0f;
|
|
|
|
Point3F qnn = n * mDot(n, q);
|
|
|
|
ra[12] = qnn.x * 2.0f;
|
|
ra[13] = qnn.y * 2.0f;
|
|
ra[14] = qnn.z * 2.0f;
|
|
ra[15] = 1.0f;
|
|
|
|
// Now, the GGems series (as of v1) uses row vectors (arg)
|
|
mReflectionMatrix.transpose();
|
|
}
|
|
|
|
void MirrorSubObject::noteTransformChange()
|
|
{
|
|
setupTransforms();
|
|
Parent::noteTransformChange();
|
|
}
|
|
|
|
InteriorSubObject* MirrorSubObject::clone(InteriorInstance* instance) const
|
|
{
|
|
MirrorSubObject* pClone = new MirrorSubObject;
|
|
|
|
pClone->mDetailLevel = mDetailLevel;
|
|
pClone->mZone = mZone;
|
|
pClone->mAlphaLevel = mAlphaLevel;
|
|
pClone->mCentroid = mCentroid;
|
|
pClone->surfaceCount = surfaceCount;
|
|
pClone->surfaceStart = surfaceStart;
|
|
|
|
pClone->mInteriorInstance = instance;
|
|
|
|
return pClone;
|
|
}
|