/*
================
RB_SetGL2D
================
*/
void RB_SetGL2D (void) {
backEnd.projection2D = qtrue;
// set 2D virtual screen size
qglViewport( 0, 0, glConfig.vidWidth, glConfig.vidHeight );
qglScissor( 0, 0, glConfig.vidWidth, glConfig.vidHeight );
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity ();
qglOrtho (0, glConfig.vidWidth, glConfig.vidHeight, 0, 0, 1);
qglMatrixMode(GL_MODELVIEW);
qglLoadIdentity ();
qglGetFloatv(GL_PROJECTION_MATRIX, glState.currentProjectionMatrix);
qglGetFloatv(GL_MODELVIEW_MATRIX, glState.currentModelViewMatrix);
Matrix4Multiply(glState.currentProjectionMatrix, glState.currentModelViewMatrix, glState.currentModelViewProjectionMatrix);
GL_State( GLS_DEPTHTEST_DISABLE |
GLS_SRCBLEND_SRC_ALPHA |
GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA );
qglDisable( GL_CULL_FACE );
qglDisable( GL_CLIP_PLANE0 );
// set time for 2D shaders
backEnd.refdef.time = ri.Milliseconds();
backEnd.refdef.floatTime = backEnd.refdef.time * 0.001f;
}
//=============================================================================
// XYZ軸回転マトリックス生成
//=============================================================================
void MATRIX4::Matrix4Rotation(MATRIX4 * MtxOut, float x, float y, float z)
{
MATRIX4 mtxRotX, mtxRotY, mtxRotZ;
float sinx, cosx, siny, cosy, sinz, cosz;
sinx = sinf(x);
cosx = cosf(x);
siny = sinf(y);
cosy = cosf(y);
sinz = sinf(z);
cosz = cosf(z);
// 単位行列作成
Matrix4Identity(MtxOut);
Matrix4Identity(&mtxRotX);
Matrix4Identity(&mtxRotY);
Matrix4Identity(&mtxRotZ);
// XYZ回転行列作成
mtxRotX.m22 = cosx;
mtxRotX.m23 = sinx;
mtxRotX.m32 = -sinx;
mtxRotX.m33 = cosx;
mtxRotY.m11 = cosy;
mtxRotY.m13 = -siny;
mtxRotY.m31 = siny;
mtxRotY.m33 = cosy;
mtxRotZ.m11 = cosz;
mtxRotZ.m12 = sinz;
mtxRotZ.m21 = -sinz;
mtxRotZ.m22 = cosz;
// XYZ回転行列の作成
Matrix4Multiply(MtxOut, &mtxRotX, &mtxRotY);
Matrix4Multiply(MtxOut, MtxOut, &mtxRotZ);
}
static void SetViewportAndScissor( void ) {
qglMatrixMode(GL_PROJECTION);
qglLoadMatrixf( backEnd.viewParms.projectionMatrix );
qglMatrixMode(GL_MODELVIEW);
// set the window clipping
qglViewport( backEnd.viewParms.viewportX, backEnd.viewParms.viewportY,
backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight );
qglScissor( backEnd.viewParms.viewportX, backEnd.viewParms.viewportY,
backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight );
Matrix4Copy(backEnd.viewParms.projectionMatrix, glState.currentProjectionMatrix);
Matrix4Multiply(glState.currentProjectionMatrix, glState.currentModelViewMatrix, glState.currentModelViewProjectionMatrix);
}
Matrix4 Matrix4::operator*(const spades::Matrix4 &other) const {
Matrix4 out;
Matrix4Multiply(m, other.m, out.m);
return Matrix4(out);
}
/*
==================
RB_RenderDrawSurfList
==================
*/
void RB_RenderDrawSurfList( drawSurf_t *drawSurfs, int numDrawSurfs ) {
shader_t *shader, *oldShader;
int fogNum, oldFogNum;
int entityNum, oldEntityNum;
int dlighted, oldDlighted;
qboolean depthRange, oldDepthRange, isCrosshair, wasCrosshair;
int i;
drawSurf_t *drawSurf;
int oldSort;
float originalTime;
// save original time for entity shader offsets
originalTime = backEnd.refdef.floatTime;
// clear the z buffer, set the modelview, etc
RB_BeginDrawingView ();
// draw everything
oldEntityNum = -1;
backEnd.currentEntity = &tr.worldEntity;
oldShader = NULL;
oldFogNum = -1;
oldDepthRange = qfalse;
wasCrosshair = qfalse;
oldDlighted = qfalse;
oldSort = -1;
depthRange = qfalse;
backEnd.pc.c_surfaces += numDrawSurfs;
for (i = 0, drawSurf = drawSurfs ; i < numDrawSurfs ; i++, drawSurf++) {
if ( drawSurf->sort == oldSort ) {
// fast path, same as previous sort
rb_surfaceTable[ *drawSurf->surface ]( drawSurf->surface );
continue;
}
oldSort = drawSurf->sort;
R_DecomposeSort( drawSurf->sort, &entityNum, &shader, &fogNum, &dlighted );
//
// change the tess parameters if needed
// a "entityMergable" shader is a shader that can have surfaces from seperate
// entities merged into a single batch, like smoke and blood puff sprites
if (shader != oldShader || fogNum != oldFogNum || dlighted != oldDlighted
|| ( entityNum != oldEntityNum && !shader->entityMergable ) ) {
if (oldShader != NULL) {
RB_EndSurface();
}
RB_BeginSurface( shader, fogNum );
oldShader = shader;
oldFogNum = fogNum;
oldDlighted = dlighted;
}
//
// change the modelview matrix if needed
//
if ( entityNum != oldEntityNum ) {
depthRange = isCrosshair = qfalse;
if ( entityNum != REFENTITYNUM_WORLD ) {
backEnd.currentEntity = &backEnd.refdef.entities[entityNum];
backEnd.refdef.floatTime = originalTime - backEnd.currentEntity->e.shaderTime;
// we have to reset the shaderTime as well otherwise image animations start
// from the wrong frame
tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
// set up the transformation matrix
R_RotateForEntity( backEnd.currentEntity, &backEnd.viewParms, &backEnd.or );
// set up the dynamic lighting if needed
if ( backEnd.currentEntity->needDlights ) {
R_TransformDlights( backEnd.refdef.num_dlights, backEnd.refdef.dlights, &backEnd.or );
}
if(backEnd.currentEntity->e.renderfx & RF_DEPTHHACK)
{
// hack the depth range to prevent view model from poking into walls
depthRange = qtrue;
if(backEnd.currentEntity->e.renderfx & RF_CROSSHAIR)
isCrosshair = qtrue;
}
} else {
backEnd.currentEntity = &tr.worldEntity;
backEnd.refdef.floatTime = originalTime;
backEnd.or = backEnd.viewParms.world;
// we have to reset the shaderTime as well otherwise image animations on
// the world (like water) continue with the wrong frame
tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
R_TransformDlights( backEnd.refdef.num_dlights, backEnd.refdef.dlights, &backEnd.or );
}
qglLoadMatrixf( backEnd.or.modelMatrix );
Matrix4Copy(backEnd.or.modelMatrix, glState.currentModelViewMatrix);
Matrix4Multiply(glState.currentProjectionMatrix, glState.currentModelViewMatrix, glState.currentModelViewProjectionMatrix);
//
// change depthrange. Also change projection matrix so first person weapon does not look like coming
// out of the screen.
//
if (oldDepthRange != depthRange || wasCrosshair != isCrosshair)
{
if (depthRange)
{
if(backEnd.viewParms.stereoFrame != STEREO_CENTER)
{
if(isCrosshair)
{
if(oldDepthRange)
{
// was not a crosshair but now is, change back proj matrix
qglMatrixMode(GL_PROJECTION);
qglLoadMatrixf(backEnd.viewParms.projectionMatrix);
qglMatrixMode(GL_MODELVIEW);
Matrix4Copy(backEnd.viewParms.projectionMatrix, glState.currentProjectionMatrix);
Matrix4Multiply(glState.currentProjectionMatrix, glState.currentModelViewMatrix, glState.currentModelViewProjectionMatrix);
}
}
else
{
viewParms_t temp = backEnd.viewParms;
R_SetupProjection(&temp, r_znear->value, qfalse);
qglMatrixMode(GL_PROJECTION);
qglLoadMatrixf(temp.projectionMatrix);
qglMatrixMode(GL_MODELVIEW);
Matrix4Copy(temp.projectionMatrix, glState.currentProjectionMatrix);
Matrix4Multiply(glState.currentProjectionMatrix, glState.currentModelViewMatrix, glState.currentModelViewProjectionMatrix);
}
}
if(!oldDepthRange)
qglDepthRange (0, 0.3);
}
else
{
if(!wasCrosshair && backEnd.viewParms.stereoFrame != STEREO_CENTER)
{
qglMatrixMode(GL_PROJECTION);
qglLoadMatrixf(backEnd.viewParms.projectionMatrix);
qglMatrixMode(GL_MODELVIEW);
Matrix4Copy(backEnd.viewParms.projectionMatrix, glState.currentProjectionMatrix);
Matrix4Multiply(glState.currentProjectionMatrix, glState.currentModelViewMatrix, glState.currentModelViewProjectionMatrix);
}
qglDepthRange (0, 1);
}
oldDepthRange = depthRange;
wasCrosshair = isCrosshair;
}
oldEntityNum = entityNum;
}
// add the triangles for this surface
rb_surfaceTable[ *drawSurf->surface ]( drawSurf->surface );
}
backEnd.refdef.floatTime = originalTime;
// draw the contents of the last shader batch
if (oldShader != NULL) {
RB_EndSurface();
}
// go back to the world modelview matrix
qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
Matrix4Copy(backEnd.viewParms.world.modelMatrix, glState.currentModelViewMatrix);
Matrix4Multiply(glState.currentProjectionMatrix, glState.currentModelViewMatrix, glState.currentModelViewProjectionMatrix);
if ( depthRange ) {
qglDepthRange (0, 1);
}
#if 0
RB_DrawSun();
#endif
// darken down any stencil shadows
RB_ShadowFinish();
// add light flares on lights that aren't obscured
RB_RenderFlares();
}
/*
=================
RB_BeginDrawingView
Any mirrored or portaled views have already been drawn, so prepare
to actually render the visible surfaces for this view
=================
*/
void RB_BeginDrawingView (void) {
int clearBits = 0;
// sync with gl if needed
if ( r_finish->integer == 1 && !glState.finishCalled ) {
qglFinish ();
glState.finishCalled = qtrue;
}
if ( r_finish->integer == 0 ) {
glState.finishCalled = qtrue;
}
// we will need to change the projection matrix before drawing
// 2D images again
backEnd.projection2D = qfalse;
// ensures that depth writes are enabled for the depth clear
GL_State( GLS_DEFAULT );
// clear relevant buffers
clearBits = GL_DEPTH_BUFFER_BIT;
if ( r_measureOverdraw->integer || r_shadows->integer == 2 )
{
clearBits |= GL_STENCIL_BUFFER_BIT;
}
if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) )
{
clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used
#ifdef _DEBUG
qglClearColor( 0.8f, 0.7f, 0.4f, 1.0f ); // FIXME: get color of sky
#else
qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f ); // FIXME: get color of sky
#endif
}
qglClear( clearBits );
//
// set the modelview matrix for the viewer
//
SetViewportAndScissor();
if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) )
{
RB_Hyperspace();
return;
}
else
{
backEnd.isHyperspace = qfalse;
}
glState.faceCulling = -1; // force face culling to set next time
// we will only draw a sun if there was sky rendered in this view
backEnd.skyRenderedThisView = qfalse;
// clip to the plane of the portal
if ( backEnd.viewParms.isPortal ) {
float plane[4];
double plane2[4];
plane[0] = backEnd.viewParms.portalPlane.normal[0];
plane[1] = backEnd.viewParms.portalPlane.normal[1];
plane[2] = backEnd.viewParms.portalPlane.normal[2];
plane[3] = backEnd.viewParms.portalPlane.dist;
plane2[0] = DotProduct (backEnd.viewParms.or.axis[0], plane);
plane2[1] = DotProduct (backEnd.viewParms.or.axis[1], plane);
plane2[2] = DotProduct (backEnd.viewParms.or.axis[2], plane);
plane2[3] = DotProduct (plane, backEnd.viewParms.or.origin) - plane[3];
qglLoadMatrixf( s_flipMatrix );
Matrix4Copy(s_flipMatrix, glState.currentModelViewMatrix);
Matrix4Multiply(glState.currentProjectionMatrix, glState.currentModelViewMatrix, glState.currentModelViewProjectionMatrix);
qglClipPlane (GL_CLIP_PLANE0, plane2);
qglEnable (GL_CLIP_PLANE0);
} else {
qglDisable (GL_CLIP_PLANE0);
}
}
