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532
interior/mirrorSubObject.cc
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532
interior/mirrorSubObject.cc
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//-----------------------------------------------------------------------------
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// V12 Engine
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//
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// Copyright (c) 2001 GarageGames.Com
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// Portions Copyright (c) 2001 by Sierra Online, Inc.
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//-----------------------------------------------------------------------------
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#include "interior/mirrorSubObject.h"
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#include "interior/interiorInstance.h"
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#include "interior/interior.h"
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#include "dgl/materialList.h"
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#include "Core/stream.h"
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#include "PlatformWin32/platformGL.h"
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#include "dgl/dgl.h"
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#include "sceneGraph/sgUtil.h"
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IMPLEMENT_CONOBJECT(MirrorSubObject);
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//--------------------------------------------------------------------------
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MirrorSubObject::MirrorSubObject()
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{
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mTypeMask = StaticObjectType;
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mInitialized = false;
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mWhite = NULL;
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}
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MirrorSubObject::~MirrorSubObject()
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{
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delete mWhite;
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mWhite = NULL;
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}
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//--------------------------------------------------------------------------
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void MirrorSubObject::initPersistFields()
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{
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Parent::initPersistFields();
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//
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}
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//--------------------------------------------------------------------------
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void MirrorSubObject::renderObject(SceneState* state, SceneRenderImage* image)
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{
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AssertFatal(dglIsInCanonicalState(), "Error, GL not in canonical state on entry");
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SubObjectRenderImage* sori = static_cast<SubObjectRenderImage*>(image);
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if (mZone == 0) {
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state->setupZoneProjection(getInstance()->getCurrZone(0));
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} else {
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state->setupZoneProjection(mZone + getInstance()->getZoneRangeStart() - 1);
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}
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RectI viewport;
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dglGetViewport(&viewport);
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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dglMultMatrix(&getSOTransform());
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glScalef(getSOScale().x, getSOScale().y, getSOScale().z);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glEnable(GL_TEXTURE_2D);
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glEnable(GL_TEXTURE_GEN_S); glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
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glEnable(GL_TEXTURE_GEN_T); glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
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glEnableClientState(GL_VERTEX_ARRAY);
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glDisableClientState(GL_COLOR_ARRAY);
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glDisableClientState(GL_TEXTURE_COORD_ARRAY);
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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glColor4f(1, 1, 1, mAlphaLevel);
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Interior* interior = getInstance()->getDetailLevel(sori->mDetailLevel);
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glVertexPointer(3, GL_FLOAT, sizeof(ItrPaddedPoint), interior->mPoints.address());
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glBindTexture(GL_TEXTURE_2D, interior->mMaterialList->getMaterial(interior->mSurfaces[surfaceStart].textureIndex).getGLName());
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glTexGenfv(GL_S, GL_OBJECT_PLANE, (GLfloat*)interior->mTexGenEQs[interior->mSurfaces[surfaceStart].texGenIndex].planeX);
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glTexGenfv(GL_T, GL_OBJECT_PLANE, (GLfloat*)interior->mTexGenEQs[interior->mSurfaces[surfaceStart].texGenIndex].planeY);
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for (U32 i = 0; i < surfaceCount; i++) {
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glDrawElements(GL_TRIANGLE_STRIP,
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interior->mSurfaces[surfaceStart+i].windingCount,
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GL_UNSIGNED_INT,
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&interior->mWindings[interior->mSurfaces[surfaceStart+i].windingStart]);
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}
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glDisableClientState(GL_VERTEX_ARRAY);
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glDisable(GL_TEXTURE_GEN_S);
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glDisable(GL_TEXTURE_GEN_T);
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glDisable(GL_TEXTURE_2D);
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glDisable(GL_BLEND);
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glBlendFunc(GL_ONE, GL_ZERO);
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glMatrixMode(GL_PROJECTION);
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glPopMatrix();
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dglSetViewport(viewport);
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glMatrixMode(GL_MODELVIEW);
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glPopMatrix();
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dglSetCanonicalState();
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AssertFatal(dglIsInCanonicalState(), "Error, GL not in canonical state on exit");
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}
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//--------------------------------------------------------------------------
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void MirrorSubObject::transformModelview(const U32 portalIndex, const MatrixF& oldMV, MatrixF* pNewMV)
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{
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AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
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AssertFatal(portalIndex == 0, "Error, we only have one portal!");
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*pNewMV = oldMV;
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pNewMV->mul(mReflectionMatrix);
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}
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//--------------------------------------------------------------------------
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void MirrorSubObject::transformPosition(const U32 portalIndex, Point3F& ioPosition)
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{
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AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
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AssertFatal(portalIndex == 0, "Error, we only have one portal!");
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mReflectionMatrix.mulP(ioPosition);
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}
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//--------------------------------------------------------------------------
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bool MirrorSubObject::computeNewFrustum(const U32 portalIndex,
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const F64* oldFrustum,
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const F64 nearPlane,
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const F64 farPlane,
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const RectI& oldViewport,
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F64* newFrustum,
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RectI& newViewport,
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const bool flippedMatrix)
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{
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AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
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AssertFatal(portalIndex == 0, "Error, mirrortests only have one portal!");
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Interior* interior = getInstance()->getDetailLevel(mDetailLevel);
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static Vector<SGWinding> mirrorWindings;
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mirrorWindings.setSize(surfaceCount);
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for (U32 i = 0; i < surfaceCount; i++) {
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SGWinding& rSGWinding = mirrorWindings[i];
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const Interior::Surface& rSurface = interior->mSurfaces[surfaceStart + i];
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U32 fanIndices[32];
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U32 numFanIndices = 0;
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interior->collisionFanFromSurface(rSurface, fanIndices, &numFanIndices);
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for (U32 j = 0; j < numFanIndices; j++)
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rSGWinding.points[j] = interior->mPoints[fanIndices[j]].point;
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rSGWinding.numPoints = numFanIndices;
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}
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MatrixF finalModelView;
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dglGetModelview(&finalModelView);
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finalModelView.mul(getSOTransform());
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finalModelView.scale(getSOScale());
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return sgComputeNewFrustum(oldFrustum, nearPlane, farPlane,
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oldViewport,
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mirrorWindings.address(), mirrorWindings.size(),
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finalModelView,
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newFrustum, newViewport,
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flippedMatrix);
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}
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//--------------------------------------------------------------------------
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void MirrorSubObject::openPortal(const U32 portalIndex,
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SceneState* pCurrState,
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SceneState* pParentState)
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{
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AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
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AssertFatal(portalIndex == 0, "Error, mirrortests only have one portal!");
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RectI viewport;
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dglGetViewport(&viewport);
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity();
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glLoadIdentity();
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const SceneState::ZoneState& baseState = pCurrState->getBaseZoneState();
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dglSetViewport(baseState.viewport);
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glDisable(GL_TEXTURE_2D);
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glEnable(GL_BLEND);
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glBlendFunc(GL_ONE, GL_ZERO);
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glEnable(GL_DEPTH_TEST);
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glDepthFunc(GL_ALWAYS);
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glColor3f(1, 0, 0);
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glBegin(GL_TRIANGLE_FAN);
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glVertex3f(-1, -1, 0);
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glVertex3f(-1, 1, 0);
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glVertex3f( 1, 1, 0);
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glVertex3f( 1, -1, 0);
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glEnd();
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// This is fairly tricky-tricky, so here's what's going on. We need this poly
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// to be at the far plane, but have it's rasterization coords be exactly that of
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// the final poly. So we copy the w-coord post projection into the z coord. this
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// ensures that after the w divide, we have the z coord == 1. This would screw
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// up texturing, but we don't really care, do we?
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if (mZone == 0)
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pParentState->setupZoneProjection(getInstance()->getCurrZone(0));
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else
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pParentState->setupZoneProjection(mZone + getInstance()->getZoneRangeStart() - 1);
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MatrixF finalProj(true);
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MatrixF currProj;
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dglGetProjection(&currProj);
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((F32*)finalProj)[10] = 0.0f;
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((F32*)finalProj)[11] = 0.9999f;
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finalProj.mul(currProj);
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glMatrixMode(GL_PROJECTION);
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dglLoadMatrix(&finalProj);
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glMatrixMode(GL_MODELVIEW);
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glPopMatrix();
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glPushMatrix();
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dglMultMatrix(&getSOTransform());
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glScalef(getSOScale().x, getSOScale().y, getSOScale().z);
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glColor3f(0, 1, 0);
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Interior* interior = getInstance()->getDetailLevel(mDetailLevel);
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glEnableClientState(GL_VERTEX_ARRAY);
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glVertexPointer(3, GL_FLOAT, sizeof(ItrPaddedPoint), interior->mPoints.address());
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for (U32 i = 0; i < surfaceCount; i++) {
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const Interior::Surface& rSurface = interior->mSurfaces[surfaceStart + i];
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glBegin(GL_TRIANGLE_STRIP);
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for (U32 j = 0; j < rSurface.windingCount; j++) {
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const Point3F& rPoint = interior->mPoints[interior->mWindings[rSurface.windingStart + j]].point;
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glVertex3fv(rPoint);
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}
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glEnd();
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}
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glDisableClientState(GL_VERTEX_ARRAY);
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glMatrixMode(GL_PROJECTION);
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glPopMatrix();
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glMatrixMode(GL_MODELVIEW);
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glPopMatrix();
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dglSetViewport(viewport);
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glDepthFunc(GL_LEQUAL);
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dglSetCanonicalState();
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}
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//--------------------------------------------------------------------------
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void MirrorSubObject::closePortal(const U32 portalIndex,
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SceneState* pCurrState,
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SceneState* pParentState)
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{
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AssertFatal(isInitialized() == true, "Error, we should have been initialized by this point!");
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AssertFatal(portalIndex == 0, "Error, mirrortests only have one portal!");
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RectI viewport;
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dglGetViewport(&viewport);
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity();
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glLoadIdentity();
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|
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const SceneState::ZoneState& baseState = pCurrState->getBaseZoneState();
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dglSetViewport(baseState.viewport);
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glDisable(GL_TEXTURE_2D);
|
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glEnable(GL_BLEND);
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glEnable(GL_DEPTH_TEST);
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glDepthMask(GL_TRUE);
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glDepthFunc(GL_ALWAYS);
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glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
|
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glColor3f(0, 0, 1);
|
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glBegin(GL_TRIANGLE_FAN);
|
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glVertex3f(-1, -1, 1);
|
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glVertex3f(-1, 1, 1);
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glVertex3f( 1, 1, 1);
|
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glVertex3f( 1, -1, 1);
|
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glEnd();
|
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glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
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|
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if (mZone == 0) {
|
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pParentState->setupZoneProjection(getInstance()->getCurrZone(0));
|
||||
} else {
|
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pParentState->setupZoneProjection(mZone + getInstance()->getZoneRangeStart() - 1);
|
||||
}
|
||||
|
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glMatrixMode(GL_MODELVIEW);
|
||||
dglLoadMatrix(&pParentState->mModelview);
|
||||
dglMultMatrix(&getSOTransform());
|
||||
glScalef(getSOScale().x, getSOScale().y, getSOScale().z);
|
||||
|
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// Need to have texturing turned on because of lame LSB z buffer errors
|
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glEnable(GL_TEXTURE_2D);
|
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glBindTexture(GL_TEXTURE_2D, mWhite->getGLName());
|
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
||||
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||||
glDisable(GL_CULL_FACE);
|
||||
|
||||
glColor3f(1, 0, 1);
|
||||
glEnableClientState(GL_VERTEX_ARRAY);
|
||||
|
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Interior* interior = getInstance()->getDetailLevel(mDetailLevel);
|
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glVertexPointer(3, GL_FLOAT, sizeof(ItrPaddedPoint), interior->mPoints.address());
|
||||
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]);
|
||||
}
|
||||
glDisableClientState(GL_VERTEX_ARRAY);
|
||||
|
||||
glDisable(GL_TEXTURE_2D);
|
||||
glBlendFunc(GL_ONE, GL_ZERO);
|
||||
|
||||
glMatrixMode(GL_PROJECTION);
|
||||
glPopMatrix();
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
glPopMatrix();
|
||||
dglSetViewport(viewport);
|
||||
|
||||
glDepthFunc(GL_LEQUAL);
|
||||
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(mCentroid);
|
||||
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;
|
||||
|
||||
// This is really bad, but it's just about the only good place for this...
|
||||
if (getInstance()->isClientObject() && mWhite == NULL)
|
||||
mWhite = new TextureHandle("special/whiteAlpha0", MeshTexture);
|
||||
|
||||
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();
|
||||
|
||||
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;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue