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-rw-r--r--src/renderer/Clouds.cpp466
1 files changed, 466 insertions, 0 deletions
diff --git a/src/renderer/Clouds.cpp b/src/renderer/Clouds.cpp
new file mode 100644
index 00000000..957844a5
--- /dev/null
+++ b/src/renderer/Clouds.cpp
@@ -0,0 +1,466 @@
+#include "common.h"
+
+#include "main.h"
+#include "Sprite.h"
+#include "Sprite2d.h"
+#include "General.h"
+#include "Coronas.h"
+#include "Camera.h"
+#include "TxdStore.h"
+#include "Weather.h"
+#include "Clock.h"
+#include "Timer.h"
+#include "Timecycle.h"
+#include "Renderer.h"
+#include "Clouds.h"
+
+#define SMALLSTRIPHEIGHT 4.0f
+#define HORIZSTRIPHEIGHT 48.0f
+
+RwTexture *gpCloudTex[5];
+
+float CClouds::CloudRotation;
+uint32 CClouds::IndividualRotation;
+
+float CClouds::ms_cameraRoll;
+float CClouds::ms_horizonZ;
+CRGBA CClouds::ms_colourTop;
+CRGBA CClouds::ms_colourBottom;
+
+void
+CClouds::Init(void)
+{
+ CTxdStore::PushCurrentTxd();
+ CTxdStore::SetCurrentTxd(CTxdStore::FindTxdSlot("particle"));
+ gpCloudTex[0] = RwTextureRead("cloud1", nil);
+ gpCloudTex[1] = RwTextureRead("cloud2", nil);
+ gpCloudTex[2] = RwTextureRead("cloud3", nil);
+ gpCloudTex[3] = RwTextureRead("cloudhilit", nil);
+ gpCloudTex[4] = RwTextureRead("cloudmasked", nil);
+ CTxdStore::PopCurrentTxd();
+ CloudRotation = 0.0f;
+}
+
+void
+CClouds::Shutdown(void)
+{
+ RwTextureDestroy(gpCloudTex[0]);
+#if GTA_VERSION >= GTA3_PC_11
+ gpCloudTex[0] = nil;
+#endif
+ RwTextureDestroy(gpCloudTex[1]);
+#if GTA_VERSION >= GTA3_PC_11
+ gpCloudTex[1] = nil;
+#endif
+ RwTextureDestroy(gpCloudTex[2]);
+#if GTA_VERSION >= GTA3_PC_11
+ gpCloudTex[2] = nil;
+#endif
+ RwTextureDestroy(gpCloudTex[3]);
+#if GTA_VERSION >= GTA3_PC_11
+ gpCloudTex[3] = nil;
+#endif
+ RwTextureDestroy(gpCloudTex[4]);
+#if GTA_VERSION >= GTA3_PC_11
+ gpCloudTex[4] = nil;
+#endif
+}
+
+void
+CClouds::Update(void)
+{
+ float s = Sin(TheCamera.Orientation - 0.85f);
+#ifdef FIX_BUGS
+ CloudRotation += CWeather::Wind*s*0.0025f*CTimer::GetTimeStepFix();
+ IndividualRotation += (CWeather::Wind*CTimer::GetTimeStep() + 0.3f*CTimer::GetTimeStepFix()) * 60.0f;
+#else
+ CloudRotation += CWeather::Wind*s*0.0025f;
+ IndividualRotation += (CWeather::Wind*CTimer::GetTimeStep() + 0.3f) * 60.0f;
+#endif
+}
+
+float StarCoorsX[9] = { 0.0f, 0.05f, 0.12f, 0.5f, 0.8f, 0.6f, 0.27f, 0.55f, 0.75f };
+float StarCoorsY[9] = { 0.0f, 0.45f, 0.9f, 1.0f, 0.85f, 0.52f, 0.48f, 0.35f, 0.2f };
+float StarSizes[9] = { 1.0f, 1.4f, 0.9f, 1.0f, 0.6f, 1.5f, 1.3f, 1.0f, 0.8f };
+
+float LowCloudsX[12] = { 1.0f, 0.7f, 0.0f, -0.7f, -1.0f, -0.7f, 0.0f, 0.7f, 0.8f, -0.8f, 0.4f, -0.4f };
+float LowCloudsY[12] = { 0.0f, -0.7f, -1.0f, -0.7f, 0.0f, 0.7f, 1.0f, 0.7f, 0.4f, 0.4f, -0.8f, -0.8f };
+float LowCloudsZ[12] = { 0.0f, 1.0f, 0.5f, 0.0f, 1.0f, 0.3f, 0.9f, 0.4f, 1.3f, 1.4f, 1.2f, 1.7f };
+
+float CoorsOffsetX[37] = {
+ 0.0f, 60.0f, 72.0f, 48.0f, 21.0f, 12.0f,
+ 9.0f, -3.0f, -8.4f, -18.0f, -15.0f, -36.0f,
+ -40.0f, -48.0f, -60.0f, -24.0f, 100.0f, 100.0f,
+ 100.0f, 100.0f, 100.0f, 100.0f, 100.0f, 100.0f,
+ 100.0f, 100.0f, -30.0f, -20.0f, 10.0f, 30.0f,
+ 0.0f, -100.0f, -100.0f, -100.0f, -100.0f, -100.0f, -100.0f
+};
+float CoorsOffsetY[37] = {
+ 100.0f, 100.0f, 100.0f, 100.0f, 100.0f, 100.0f,
+ 100.0f, 100.0f, 100.0f, 100.0f, 100.0f, 100.0f,
+ 100.0f, 100.0f, 100.0f, 100.0f, -30.0f, 10.0f,
+ -25.0f, -5.0f, 28.0f, -10.0f, 10.0f, 0.0f,
+ 15.0f, 40.0f, -100.0f, -100.0f, -100.0f, -100.0f,
+ -100.0f, -40.0f, -20.0f, 0.0f, 10.0f, 30.0f, 35.0f
+};
+float CoorsOffsetZ[37] = {
+ 2.0f, 1.0f, 0.0f, 0.3f, 0.7f, 1.4f,
+ 1.7f, 0.24f, 0.7f, 1.3f, 1.6f, 1.0f,
+ 1.2f, 0.3f, 0.7f, 1.4f, 0.0f, 0.1f,
+ 0.5f, 0.4f, 0.55f, 0.75f, 1.0f, 1.4f,
+ 1.7f, 2.0f, 2.0f, 2.3f, 1.9f, 2.4f,
+ 2.0f, 2.0f, 1.5f, 1.2f, 1.7f, 1.5f, 2.1f
+};
+
+uint8 BowRed[6] = { 30, 30, 30, 10, 0, 15 };
+uint8 BowGreen[6] = { 0, 15, 30, 30, 0, 0 };
+uint8 BowBlue[6] = { 0, 0, 0, 10, 30, 30 };
+
+void
+CClouds::Render(void)
+{
+ int i;
+ float szx, szy;
+ RwV3d screenpos;
+ RwV3d worldpos;
+
+ PUSH_RENDERGROUP("CClouds::Render");
+
+ CCoronas::SunBlockedByClouds = false;
+
+ RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)FALSE);
+ RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)FALSE);
+ RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)TRUE);
+ RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDONE);
+ RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDONE);
+ CSprite::InitSpriteBuffer();
+
+ int minute = CClock::GetHours()*60 + CClock::GetMinutes();
+ RwV3d campos = TheCamera.GetPosition();
+
+ // Moon
+ int moonfadeout = Abs(minute - 180); // fully visible at 3AM
+ if(moonfadeout < 180){ // fade in/out 3 hours
+ float coverage = Max(CWeather::Foggyness, CWeather::CloudCoverage);
+ int brightness = (1.0f - coverage) * (180 - moonfadeout);
+ RwV3d pos = { 0.0f, -100.0f, 15.0f };
+ RwV3dAdd(&worldpos, &campos, &pos);
+ if(CSprite::CalcScreenCoors(worldpos, &screenpos, &szx, &szy, false)){
+ RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpCoronaTexture[2]));
+ if(CCoronas::bSmallMoon){
+ szx *= 4.0f;
+ szy *= 4.0f;
+ }else{
+ szx *= 10.0f;
+ szy *= 10.0f;
+ }
+ CSprite::RenderOneXLUSprite(screenpos.x, screenpos.y, screenpos.z,
+ szx, szy, brightness, brightness, brightness, 255, 1.0f/screenpos.z, 255);
+ }
+ }
+
+ // The R* logo
+ int starintens = 0;
+ if(CClock::GetHours() < 22 && CClock::GetHours() > 5)
+ starintens = 0;
+ else if(CClock::GetHours() > 22 || CClock::GetHours() < 5)
+ starintens = 255;
+ else if(CClock::GetHours() == 22)
+ starintens = 255 * CClock::GetMinutes()/60.0f;
+ else if(CClock::GetHours() == 5)
+ starintens = 255 * (60 - CClock::GetMinutes())/60.0f;
+ if(starintens != 0){
+ float coverage = Max(CWeather::Foggyness, CWeather::CloudCoverage);
+ int brightness = (1.0f - coverage) * starintens;
+
+ // R
+ RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpCoronaTexture[0]));
+ for(i = 0; i < 11; i++){
+ RwV3d pos = { 100.0f, 0.0f, 10.0f };
+ if(i >= 9) pos.x = -pos.x;
+ RwV3dAdd(&worldpos, &campos, &pos);
+ worldpos.y -= 90.0f*StarCoorsX[i%9];
+ worldpos.z += 80.0f*StarCoorsY[i%9];
+ if(CSprite::CalcScreenCoors(worldpos, &screenpos, &szx, &szy, false)){
+ float sz = 0.8f*StarSizes[i%9];
+ CSprite::RenderBufferedOneXLUSprite(screenpos.x, screenpos.y, screenpos.z,
+ szx*sz, szy*sz, brightness, brightness, brightness, 255, 1.0f/screenpos.z, 255);
+ }
+ }
+ CSprite::FlushSpriteBuffer();
+
+ // *
+ RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpCoronaTexture[0]));
+ RwV3d pos = { 100.0f, 0.0f, 10.0f };
+ RwV3dAdd(&worldpos, &campos, &pos);
+ worldpos.y -= 90.0f;
+ if(CSprite::CalcScreenCoors(worldpos, &screenpos, &szx, &szy, false)){
+ brightness *= (CGeneral::GetRandomNumber()&127) / 640.0f + 0.5f;
+ CSprite::RenderOneXLUSprite(screenpos.x, screenpos.y, screenpos.z,
+ szx*5.0f, szy*5.0f, brightness, brightness, brightness, 255, 1.0f/screenpos.z, 255);
+ }
+ }
+
+ // Low clouds
+ float lowcloudintensity = 1.0f - Max(CWeather::Foggyness, CWeather::CloudCoverage);
+ int r = CTimeCycle::GetLowCloudsRed() * lowcloudintensity;
+ int g = CTimeCycle::GetLowCloudsGreen() * lowcloudintensity;
+ int b = CTimeCycle::GetLowCloudsBlue() * lowcloudintensity;
+ for(int cloudtype = 0; cloudtype < 3; cloudtype++){
+ for(i = cloudtype; i < 12; i += 3){
+ RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpCloudTex[cloudtype]));
+ RwV3d pos = { 800.0f*LowCloudsX[i], 800.0f*LowCloudsY[i], 60.0f*LowCloudsZ[i] };
+ worldpos.x = campos.x + pos.x;
+ worldpos.y = campos.y + pos.y;
+ worldpos.z = 40.0f + pos.z;
+ if(CSprite::CalcScreenCoors(worldpos, &screenpos, &szx, &szy, false))
+ CSprite::RenderBufferedOneXLUSprite_Rotate_Dimension(screenpos.x, screenpos.y, screenpos.z,
+ szx*320.0f, szy*40.0f, r, g, b, 255, 1.0f/screenpos.z, ms_cameraRoll, 255);
+ }
+ CSprite::FlushSpriteBuffer();
+ }
+
+ // Fluffy clouds
+ float rot_sin = Sin(CloudRotation);
+ float rot_cos = Cos(CloudRotation);
+ int fluffyalpha = 160 * (1.0f - CWeather::Foggyness);
+ if(fluffyalpha != 0){
+ static bool bCloudOnScreen[37];
+ float hilight;
+
+ RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
+ RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
+ RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpCloudTex[4]));
+ for(i = 0; i < 37; i++){
+ RwV3d pos = { 2.0f*CoorsOffsetX[i], 2.0f*CoorsOffsetY[i], 40.0f*CoorsOffsetZ[i] + 40.0f };
+ worldpos.x = pos.x*rot_cos + pos.y*rot_sin + campos.x;
+ worldpos.y = pos.x*rot_sin - pos.y*rot_cos + campos.y;
+ worldpos.z = pos.z;
+
+ if(CSprite::CalcScreenCoors(worldpos, &screenpos, &szx, &szy, false)){
+ float sundist = Sqrt(sq(screenpos.x-CCoronas::SunScreenX) + sq(screenpos.y-CCoronas::SunScreenY));
+ int tr = CTimeCycle::GetFluffyCloudsTopRed();
+ int tg = CTimeCycle::GetFluffyCloudsTopGreen();
+ int tb = CTimeCycle::GetFluffyCloudsTopBlue();
+ int br = CTimeCycle::GetFluffyCloudsBottomRed();
+ int bg = CTimeCycle::GetFluffyCloudsBottomGreen();
+ int bb = CTimeCycle::GetFluffyCloudsBottomBlue();
+ if(sundist < SCREEN_WIDTH/2){
+ hilight = (1.0f - Max(CWeather::Foggyness, CWeather::CloudCoverage)) * (1.0f - sundist/(SCREEN_WIDTH/2));
+ tr = tr*(1.0f-hilight) + 255*hilight;
+ tg = tg*(1.0f-hilight) + 190*hilight;
+ tb = tb*(1.0f-hilight) + 190*hilight;
+ br = br*(1.0f-hilight) + 255*hilight;
+ bg = bg*(1.0f-hilight) + 190*hilight;
+ bb = bb*(1.0f-hilight) + 190*hilight;
+ if(sundist < SCREEN_WIDTH/10)
+ CCoronas::SunBlockedByClouds = true;
+ }else
+ hilight = 0.0f;
+ CSprite::RenderBufferedOneXLUSprite_Rotate_2Colours(screenpos.x, screenpos.y, screenpos.z,
+ szx*55.0f, szy*55.0f,
+ tr, tg, tb, br, bg, bb, 0.0f, -1.0f,
+ 1.0f/screenpos.z,
+ (uint16)IndividualRotation/65336.0f * 6.28f + ms_cameraRoll,
+ fluffyalpha);
+ bCloudOnScreen[i] = true;
+ }else
+ bCloudOnScreen[i] = false;
+ }
+ CSprite::FlushSpriteBuffer();
+
+ // Highlights
+ RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDONE);
+ RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDONE);
+ RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpCloudTex[3]));
+
+ for(i = 0; i < 37; i++){
+ RwV3d pos = { 2.0f*CoorsOffsetX[i], 2.0f*CoorsOffsetY[i], 40.0f*CoorsOffsetZ[i] + 40.0f };
+ worldpos.x = pos.x*rot_cos + pos.y*rot_sin + campos.x;
+ worldpos.y = pos.x*rot_sin - pos.y*rot_cos + campos.y;
+ worldpos.z = pos.z;
+ if(bCloudOnScreen[i] && CSprite::CalcScreenCoors(worldpos, &screenpos, &szx, &szy, false)){
+ // BUG: this is stupid....would have to do this for each cloud individually
+ if(hilight > 0.0f){
+ CSprite::RenderBufferedOneXLUSprite_Rotate_Aspect(screenpos.x, screenpos.y, screenpos.z,
+ szx*30.0f, szy*30.0f,
+ 200*hilight, 0, 0, 255, 1.0f/screenpos.z,
+ 1.7f - CGeneral::GetATanOfXY(screenpos.x-CCoronas::SunScreenX, screenpos.y-CCoronas::SunScreenY) + CClouds::ms_cameraRoll, 255);
+ }
+ }
+ }
+ CSprite::FlushSpriteBuffer();
+ }
+
+ // Rainbow
+ if(CWeather::Rainbow != 0.0f){
+ RwRenderStateSet(rwRENDERSTATETEXTURERASTER, RwTextureGetRaster(gpCoronaTexture[0]));
+ for(i = 0; i < 6; i++){
+ RwV3d pos = { i*1.5f, 100.0f, 5.0f };
+ RwV3dAdd(&worldpos, &campos, &pos);
+ if(CSprite::CalcScreenCoors(worldpos, &screenpos, &szx, &szy, false))
+ CSprite::RenderBufferedOneXLUSprite(screenpos.x, screenpos.y, screenpos.z,
+ 2.0f*szx, 50.0*szy,
+ BowRed[i]*CWeather::Rainbow, BowGreen[i]*CWeather::Rainbow, BowBlue[i]*CWeather::Rainbow,
+ 255, 1.0f/screenpos.z, 255);
+
+ }
+ CSprite::FlushSpriteBuffer();
+ }
+
+ RwRenderStateSet(rwRENDERSTATEVERTEXALPHAENABLE, (void*)FALSE);
+ RwRenderStateSet(rwRENDERSTATEZWRITEENABLE, (void*)TRUE);
+ RwRenderStateSet(rwRENDERSTATEZTESTENABLE, (void*)TRUE);
+ RwRenderStateSet(rwRENDERSTATESRCBLEND, (void*)rwBLENDSRCALPHA);
+ RwRenderStateSet(rwRENDERSTATEDESTBLEND, (void*)rwBLENDINVSRCALPHA);
+
+ POP_RENDERGROUP();
+}
+
+bool
+UseDarkBackground(void)
+{
+ return TheCamera.GetForward().z < -0.9f || gbShowCollisionPolys;
+}
+
+void
+CClouds::RenderBackground(int16 topred, int16 topgreen, int16 topblue,
+ int16 botred, int16 botgreen, int16 botblue, int16 alpha)
+{
+ PUSH_RENDERGROUP("CClouds::RenderBackground");
+
+ CVector left = TheCamera.GetRight();
+ float c = left.Magnitude2D();
+ if(c > 1.0f)
+ c = 1.0f;
+ ms_cameraRoll = Acos(c);
+ if(left.z < 0.0f)
+ ms_cameraRoll = -ms_cameraRoll;
+
+ if(UseDarkBackground()){
+ ms_colourTop.r = 50;
+ ms_colourTop.g = 50;
+ ms_colourTop.b = 50;
+ ms_colourTop.a = 255;
+ if(gbShowCollisionPolys){
+ if(CTimer::GetFrameCounter() & 1){
+ ms_colourTop.r = 0;
+ ms_colourTop.g = 0;
+ ms_colourTop.b = 0;
+ }else{
+ ms_colourTop.r = 255;
+ ms_colourTop.g = 255;
+ ms_colourTop.b = 255;
+ }
+ }
+ ms_colourBottom = ms_colourTop;
+ CRect r(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
+ CSprite2d::DrawRect(r, ms_colourBottom, ms_colourBottom, ms_colourTop, ms_colourTop);
+ }else{
+ ms_horizonZ = CSprite::CalcHorizonCoors();
+
+ // Draw top/bottom gradient
+ float gradheight = SCREEN_HEIGHT/2.0f;
+ float topedge = ms_horizonZ - gradheight;
+ float botpos, toppos;
+ if(ms_horizonZ > 0.0f && topedge < SCREEN_HEIGHT){
+ ms_colourTop.r = topred;
+ ms_colourTop.g = topgreen;
+ ms_colourTop.b = topblue;
+ ms_colourTop.a = alpha;
+ ms_colourBottom.r = botred;
+ ms_colourBottom.g = botgreen;
+ ms_colourBottom.b = botblue;
+ ms_colourBottom.a = alpha;
+
+ if(ms_horizonZ < SCREEN_HEIGHT)
+ botpos = ms_horizonZ;
+ else{
+ float f = (ms_horizonZ - SCREEN_HEIGHT)/gradheight;
+ ms_colourBottom.r = topred*f + (1.0f-f)*botred;
+ ms_colourBottom.g = topgreen*f + (1.0f-f)*botgreen;
+ ms_colourBottom.b = topblue*f + (1.0f-f)*botblue;
+ botpos = SCREEN_HEIGHT;
+ }
+ if(topedge >= 0.0f)
+ toppos = topedge;
+ else{
+ float f = (0.0f - topedge)/gradheight;
+ ms_colourTop.r = botred*f + (1.0f-f)*topred;
+ ms_colourTop.g = botgreen*f + (1.0f-f)*topgreen;
+ ms_colourTop.b = botblue*f + (1.0f-f)*topblue;
+ toppos = 0.0f;
+ }
+ CSprite2d::DrawRect(CRect(0, toppos, SCREEN_WIDTH, botpos),
+ ms_colourBottom, ms_colourBottom, ms_colourTop, ms_colourTop);
+ }
+
+ // draw the small stripe (whatever it's supposed to be)
+ if(ms_horizonZ > -SMALLSTRIPHEIGHT && ms_horizonZ < SCREEN_HEIGHT){
+ // Same colour as fog
+ ms_colourTop.r = (topred + 2 * botred) / 3;
+ ms_colourTop.g = (topgreen + 2 * botgreen) / 3;
+ ms_colourTop.b = (topblue + 2 * botblue) / 3;
+ CSprite2d::DrawRect(CRect(0, ms_horizonZ, SCREEN_WIDTH, ms_horizonZ+SMALLSTRIPHEIGHT),
+ ms_colourTop, ms_colourTop, ms_colourTop, ms_colourTop);
+ }
+
+ // Only top
+ if(topedge > 0.0f){
+ ms_colourTop.r = topred;
+ ms_colourTop.g = topgreen;
+ ms_colourTop.b = topblue;
+ ms_colourTop.a = alpha;
+ ms_colourBottom.r = topred;
+ ms_colourBottom.g = topgreen;
+ ms_colourBottom.b = topblue;
+ ms_colourBottom.a = alpha;
+
+ botpos = Min(SCREEN_HEIGHT, topedge);
+ CSprite2d::DrawRect(CRect(0, 0, SCREEN_WIDTH, botpos),
+ ms_colourBottom, ms_colourBottom, ms_colourTop, ms_colourTop);
+ }
+
+ // Set both to fog colour for RenderHorizon
+ ms_colourTop.r = (topred + 2 * botred) / 3;
+ ms_colourTop.g = (topgreen + 2 * botgreen) / 3;
+ ms_colourTop.b = (topblue + 2 * botblue) / 3;
+ ms_colourBottom.r = (topred + 2 * botred) / 3;
+ ms_colourBottom.g = (topgreen + 2 * botgreen) / 3;
+ ms_colourBottom.b = (topblue + 2 * botblue) / 3;
+ }
+
+ POP_RENDERGROUP();
+}
+
+void
+CClouds::RenderHorizon(void)
+{
+ if(UseDarkBackground())
+ return;
+
+ ms_colourBottom.a = 230;
+ ms_colourTop.a = 80;
+
+ if(ms_horizonZ > SCREEN_HEIGHT)
+ return;
+
+ PUSH_RENDERGROUP("CClouds::RenderHorizon");
+
+ float z1 = Min(ms_horizonZ + SMALLSTRIPHEIGHT, SCREEN_HEIGHT);
+ CSprite2d::DrawRectXLU(CRect(0, ms_horizonZ, SCREEN_WIDTH, z1),
+ ms_colourBottom, ms_colourBottom, ms_colourTop, ms_colourTop);
+
+ // This is just weird
+ float a = SCREEN_HEIGHT/400.0f * HORIZSTRIPHEIGHT +
+ SCREEN_HEIGHT/300.0f * Max(TheCamera.GetPosition().z, 0.0f);
+ float b = TheCamera.GetUp().z < 0.0f ?
+ SCREEN_HEIGHT :
+ SCREEN_HEIGHT * Abs(TheCamera.GetRight().z);
+ float z2 = z1 + (a + b)*TheCamera.LODDistMultiplier;
+ z2 = Min(z2, SCREEN_HEIGHT);
+ CSprite2d::DrawRect(CRect(0, z1, SCREEN_WIDTH, z2),
+ ms_colourBottom, ms_colourBottom, ms_colourTop, ms_colourTop);
+
+ POP_RENDERGROUP();
+}