void ParticleRenderer::PrepareForRendering(const CShaderDefines& context)
{
PROFILE3("prepare particles");
// Can't load the shader in the constructor because it's called before the
// renderer initialisation is complete, so load it the first time through here
if (!m->shader)
{
// Only construct the shaders when shaders are supported and enabled; otherwise
// RenderParticles will never be called so it's safe to leave the shaders as null
if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
{
m->shader = g_Renderer.GetShaderManager().LoadEffect(str_particle, context, CShaderDefines());
m->shaderSolid = g_Renderer.GetShaderManager().LoadEffect(str_particle_solid, context, CShaderDefines());
}
}
{
PROFILE("update emitters");
for (size_t i = 0; i < m->emitters.size(); ++i)
{
CParticleEmitter* emitter = m->emitters[i];
emitter->UpdateArrayData();
}
}
{
// Sort back-to-front by distance from camera
PROFILE("sort emitters");
CMatrix3D worldToCam;
g_Renderer.GetViewCamera().m_Orientation.GetInverse(worldToCam);
std::stable_sort(m->emitters.begin(), m->emitters.end(), SortEmitterDistance(worldToCam));
}
// TODO: should batch by texture here when possible, maybe
}
void CMiniMap::Draw()
{
PROFILE3("render minimap");
// The terrain isn't actually initialized until the map is loaded, which
// happens when the game is started, so abort until then.
if(!(GetGUI() && g_Game && g_Game->IsGameStarted()))
return;
CSimulation2* sim = g_Game->GetSimulation2();
CmpPtr<ICmpRangeManager> cmpRangeManager(*sim, SYSTEM_ENTITY);
ENSURE(cmpRangeManager);
// Set our globals in case they hadn't been set before
m_Camera = g_Game->GetView()->GetCamera();
m_Terrain = g_Game->GetWorld()->GetTerrain();
m_Width = (u32)(m_CachedActualSize.right - m_CachedActualSize.left);
m_Height = (u32)(m_CachedActualSize.bottom - m_CachedActualSize.top);
m_MapSize = m_Terrain->GetVerticesPerSide();
m_TextureSize = (GLsizei)round_up_to_pow2((size_t)m_MapSize);
m_MapScale = (cmpRangeManager->GetLosCircular() ? 1.f : 1.414f);
if(!m_TerrainTexture || g_GameRestarted)
CreateTextures();
// only update 2x / second
// (note: since units only move a few pixels per second on the minimap,
// we can get away with infrequent updates; this is slow)
static double last_time;
const double cur_time = timer_Time();
if(cur_time - last_time > 0.5)
{
last_time = cur_time;
if(m_TerrainDirty)
RebuildTerrainTexture();
}
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
CMatrix3D matrix = GetDefaultGuiMatrix();
glLoadMatrixf(&matrix._11);
// Disable depth updates to prevent apparent z-fighting-related issues
// with some drivers causing units to get drawn behind the texture
glDepthMask(0);
CShaderProgramPtr shader;
CShaderTechniquePtr tech;
if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
{
CShaderDefines defines;
defines.Add("MINIMAP_BASE", "1");
tech = g_Renderer.GetShaderManager().LoadEffect(CStrIntern("minimap"), g_Renderer.GetSystemShaderDefines(), defines);
tech->BeginPass();
shader = tech->GetShader();
}
else
{
shader = g_Renderer.GetShaderManager().LoadProgram("fixed:dummy", CShaderDefines());
shader->Bind();
}
const float x = m_CachedActualSize.left, y = m_CachedActualSize.bottom;
const float x2 = m_CachedActualSize.right, y2 = m_CachedActualSize.top;
const float z = GetBufferedZ();
const float texCoordMax = (float)(m_MapSize - 1) / (float)m_TextureSize;
const float angle = GetAngle();
// Draw the main textured quad
//g_Renderer.BindTexture(0, m_TerrainTexture);
shader->BindTexture("baseTex", m_TerrainTexture);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
DrawTexture(texCoordMax, angle, x, y, x2, y2, z);
// Draw territory boundaries
CTerritoryTexture& territoryTexture = g_Game->GetView()->GetTerritoryTexture();
shader->BindTexture("baseTex", territoryTexture.GetTexture());
//territoryTexture.BindTexture(0);
glEnable(GL_BLEND);
glMatrixMode(GL_TEXTURE);
glLoadMatrixf(territoryTexture.GetMinimapTextureMatrix());
glMatrixMode(GL_MODELVIEW);
DrawTexture(1.0f, angle, x, y, x2, y2, z);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glDisable(GL_BLEND);
// Draw the LOS quad in black, using alpha values from the LOS texture
CLOSTexture& losTexture = g_Game->GetView()->GetLOSTexture();
if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
{
tech->EndPass();
CShaderDefines defines;
defines.Add("MINIMAP_LOS", "1");
tech = g_Renderer.GetShaderManager().LoadEffect(CStrIntern("minimap"), g_Renderer.GetSystemShaderDefines(), defines);
tech->BeginPass();
shader = tech->GetShader();
}
shader->BindTexture("baseTex", losTexture.GetTexture());
//losTexture.BindTexture(0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PRIMARY_COLOR_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor3f(0.0f, 0.0f, 0.0f);
glMatrixMode(GL_TEXTURE);
glLoadMatrixf(losTexture.GetMinimapTextureMatrix());
glMatrixMode(GL_MODELVIEW);
DrawTexture(1.0f, angle, x, y, x2, y2, z);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glDisable(GL_BLEND);
if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
{
tech->EndPass();
CShaderDefines defines;
defines.Add("MINIMAP_POINT", "1");
tech = g_Renderer.GetShaderManager().LoadEffect(CStrIntern("minimap"), g_Renderer.GetSystemShaderDefines(), defines);
tech->BeginPass();
shader = tech->GetShader();
}
// Set up the matrix for drawing points and lines
glPushMatrix();
glTranslatef(x, y, z);
// Rotate around the center of the map
glTranslatef((x2-x)/2.f, (y2-y)/2.f, 0.f);
// Scale square maps to fit in circular minimap area
float unitScale = (cmpRangeManager->GetLosCircular() ? 1.f : m_MapScale/2.f);
glScalef(unitScale, unitScale, 1.f);
glRotatef(angle * 180.f/M_PI, 0.f, 0.f, 1.f);
glTranslatef(-(x2-x)/2.f, -(y2-y)/2.f, 0.f);
PROFILE_START("minimap units");
// Don't enable GL_POINT_SMOOTH because it's far too slow
// (~70msec/frame on a GF4 rendering a thousand points)
glPointSize(3.f);
float sx = (float)m_Width / ((m_MapSize - 1) * TERRAIN_TILE_SIZE);
float sy = (float)m_Height / ((m_MapSize - 1) * TERRAIN_TILE_SIZE);
CSimulation2::InterfaceList ents = sim->GetEntitiesWithInterface(IID_Minimap);
std::vector<MinimapUnitVertex> vertexArray;
vertexArray.reserve(ents.size());
for (CSimulation2::InterfaceList::const_iterator it = ents.begin(); it != ents.end(); ++it)
{
MinimapUnitVertex v;
ICmpMinimap* cmpMinimap = static_cast<ICmpMinimap*>(it->second);
entity_pos_t posX, posZ;
if (cmpMinimap->GetRenderData(v.r, v.g, v.b, posX, posZ))
{
ICmpRangeManager::ELosVisibility vis = cmpRangeManager->GetLosVisibility(it->first, g_Game->GetPlayerID());
if (vis != ICmpRangeManager::VIS_HIDDEN)
{
v.a = 255;
v.x = posX.ToFloat()*sx;
v.y = -posZ.ToFloat()*sy;
vertexArray.push_back(v);
}
}
}
if (!vertexArray.empty())
{
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
shader->VertexPointer(2, GL_FLOAT, sizeof(MinimapUnitVertex), &vertexArray[0].x);
shader->ColorPointer(4, GL_UNSIGNED_BYTE, sizeof(MinimapUnitVertex), &vertexArray[0].r);
glDrawArrays(GL_POINTS, 0, (GLsizei)vertexArray.size());
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
}
PROFILE_END("minimap units");
if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
{
tech->EndPass();
CShaderDefines defines;
defines.Add("MINIMAP_LINE", "1");
tech = g_Renderer.GetShaderManager().LoadEffect(CStrIntern("minimap"), g_Renderer.GetSystemShaderDefines(), defines);
tech->BeginPass();
shader = tech->GetShader();
}
DrawViewRect();
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
{
tech->EndPass();
}
else
{
shader->Unbind();
}
// Reset everything back to normal
glPointSize(1.0f);
glEnable(GL_TEXTURE_2D);
glDepthMask(1);
}
void TerrainRenderer::RenderSimpleWater()
{
#if !CONFIG2_GLES
PROFILE3_GPU("simple water");
WaterManager* WaterMgr = g_Renderer.GetWaterManager();
CLOSTexture& losTexture = g_Game->GetView()->GetLOSTexture();
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
double time = WaterMgr->m_WaterTexTimer;
double period = 1.6f;
int curTex = (int)(time*60/period) % 60;
WaterMgr->m_WaterTexture[curTex]->Bind();
// Shift the texture coordinates by these amounts to make the water "flow"
float tx = -fmod(time, 81.0)/81.0;
float ty = -fmod(time, 34.0)/34.0;
float repeatPeriod = 16.0f;
// Perform the shifting by using texture coordinate generation
GLfloat texgenS0[4] = { 1/repeatPeriod, 0, 0, tx };
GLfloat texgenT0[4] = { 0, 0, 1/repeatPeriod, ty };
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGenfv(GL_S, GL_OBJECT_PLANE, texgenS0);
glTexGenfv(GL_T, GL_OBJECT_PLANE, texgenT0);
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
// Set up texture environment to multiply vertex RGB by texture RGB and use vertex alpha
GLfloat waterColor[4] = { WaterMgr->m_WaterColor.r, WaterMgr->m_WaterColor.g, WaterMgr->m_WaterColor.b, 1.0f };
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, waterColor);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_CONSTANT);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PRIMARY_COLOR_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
// Multiply by LOS texture
losTexture.BindTexture(1);
CMatrix3D losMatrix = losTexture.GetTextureMatrix();
GLfloat texgenS1[4] = { losMatrix[0], losMatrix[4], losMatrix[8], losMatrix[12] };
GLfloat texgenT1[4] = { losMatrix[1], losMatrix[5], losMatrix[9], losMatrix[13] };
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
glTexGenfv(GL_S, GL_OBJECT_PLANE, texgenS1);
glTexGenfv(GL_T, GL_OBJECT_PLANE, texgenT1);
glEnable(GL_TEXTURE_GEN_S);
glEnable(GL_TEXTURE_GEN_T);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_ALPHA);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
CShaderProgramPtr dummyShader = g_Renderer.GetShaderManager().LoadProgram("fixed:dummy", CShaderDefines());
dummyShader->Bind();
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
for (size_t i = 0; i < m->visiblePatches.size(); ++i)
{
CPatchRData* data = m->visiblePatches[i];
data->RenderWater(dummyShader);
}
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
dummyShader->Unbind();
g_Renderer.BindTexture(1, 0);
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
pglActiveTextureARB(GL_TEXTURE0_ARB);
// Clean up the texture matrix and blend mode
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
#endif
}
void OverlayRenderer::RenderForegroundOverlays(const CCamera& viewCamera)
{
PROFILE3_GPU("overlays (fg)");
#if CONFIG2_GLES
#warning TODO: implement OverlayRenderer::RenderForegroundOverlays for GLES
#else
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
CVector3D right = -viewCamera.m_Orientation.GetLeft();
CVector3D up = viewCamera.m_Orientation.GetUp();
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
CShaderProgramPtr shader;
CShaderTechniquePtr tech;
if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
{
tech = g_Renderer.GetShaderManager().LoadEffect("foreground_overlay");
tech->BeginPass();
shader = tech->GetShader();
}
else
{
shader = g_Renderer.GetShaderManager().LoadProgram("fixed:dummy", CShaderDefines());
shader->Bind();
}
float uvs[8] = { 0,0, 1,0, 1,1, 0,1 };
shader->TexCoordPointer(GL_TEXTURE0, 2, GL_FLOAT, sizeof(float)*2, &uvs[0]);
for (size_t i = 0; i < m->sprites.size(); ++i)
{
SOverlaySprite* sprite = m->sprites[i];
shader->BindTexture("baseTex", sprite->m_Texture);
CVector3D pos[4] = {
sprite->m_Position + right*sprite->m_X0 + up*sprite->m_Y0,
sprite->m_Position + right*sprite->m_X1 + up*sprite->m_Y0,
sprite->m_Position + right*sprite->m_X1 + up*sprite->m_Y1,
sprite->m_Position + right*sprite->m_X0 + up*sprite->m_Y1
};
shader->VertexPointer(3, GL_FLOAT, sizeof(float)*3, &pos[0].X);
glDrawArrays(GL_QUADS, 0, (GLsizei)4);
g_Renderer.GetStats().m_DrawCalls++;
g_Renderer.GetStats().m_OverlayTris += 2;
}
if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
{
tech->EndPass();
}
else
{
shader->Unbind();
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glEnable(GL_DEPTH_TEST);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
#endif
}
///////////////////////////////////////////////////////////////////
// Render un-textured patches as polygons
void TerrainRenderer::RenderPatches(bool filtered)
{
ENSURE(m->phase == Phase_Render);
std::vector<CPatchRData*>& visiblePatches = filtered ? m->filteredPatches : m->visiblePatches;
if (visiblePatches.empty())
return;
#if CONFIG2_GLES
#warning TODO: implement TerrainRenderer::RenderPatches for GLES
#else
CShaderProgramPtr dummyShader = g_Renderer.GetShaderManager().LoadProgram("fixed:dummy", CShaderDefines());
dummyShader->Bind();
glEnableClientState(GL_VERTEX_ARRAY);
CPatchRData::RenderStreams(visiblePatches, dummyShader, STREAM_POS);
glDisableClientState(GL_VERTEX_ARRAY);
dummyShader->Unbind();
#endif
}
void TerrainRenderer::RenderTerrainOverlayTexture(CMatrix3D& textureMatrix)
{
#if CONFIG2_GLES
#warning TODO: implement TerrainRenderer::RenderTerrainOverlayTexture for GLES
UNUSED2(textureMatrix);
#else
ENSURE(m->phase == Phase_Render);
std::vector<CPatchRData*>& visiblePatches = m->visiblePatches;
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthMask(0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glMatrixMode(GL_TEXTURE);
glLoadMatrixf(&textureMatrix._11);
glMatrixMode(GL_MODELVIEW);
CShaderProgramPtr dummyShader = g_Renderer.GetShaderManager().LoadProgram("fixed:dummy", CShaderDefines());
dummyShader->Bind();
CPatchRData::RenderStreams(visiblePatches, dummyShader, STREAM_POS|STREAM_POSTOUV0);
dummyShader->Unbind();
// To make the overlay visible over water, render an additional map-sized
// water-height patch
CBoundingBoxAligned waterBounds;
for (size_t i = 0; i < m->visiblePatches.size(); ++i)
{
CPatchRData* data = m->visiblePatches[i];
waterBounds += data->GetWaterBounds();
}
if (!waterBounds.IsEmpty())
{
float h = g_Renderer.GetWaterManager()->m_WaterHeight + 0.05f; // add a delta to avoid z-fighting
float waterPos[] = {
waterBounds[0].X, h, waterBounds[0].Z,
waterBounds[1].X, h, waterBounds[0].Z,
waterBounds[0].X, h, waterBounds[1].Z,
waterBounds[1].X, h, waterBounds[1].Z
};
glVertexPointer(3, GL_FLOAT, 3*sizeof(float), waterPos);
glTexCoordPointer(3, GL_FLOAT, 3*sizeof(float), waterPos);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glDepthMask(1);
glDisable(GL_BLEND);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
#endif
}
///////////////////////////////////////////////////////////////////
// Full-featured terrain rendering with blending and everything
void TerrainRenderer::RenderTerrain(bool filtered)
{
#if CONFIG2_GLES
UNUSED2(filtered);
#else
ENSURE(m->phase == Phase_Render);
std::vector<CPatchRData*>& visiblePatches = filtered ? m->filteredPatches : m->visiblePatches;
std::vector<CDecalRData*>& visibleDecals = filtered ? m->filteredDecals : m->visibleDecals;
if (visiblePatches.empty() && visibleDecals.empty())
return;
CShaderProgramPtr dummyShader = g_Renderer.GetShaderManager().LoadProgram("fixed:dummy", CShaderDefines());
dummyShader->Bind();
// render the solid black sides of the map first
g_Renderer.BindTexture(0, 0);
glEnableClientState(GL_VERTEX_ARRAY);
glColor3f(0, 0, 0);
PROFILE_START("render terrain sides");
for (size_t i = 0; i < visiblePatches.size(); ++i)
visiblePatches[i]->RenderSides(dummyShader);
PROFILE_END("render terrain sides");
// switch on required client states
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
// render everything fullbright
// set up texture environment for base pass
pglActiveTextureARB(GL_TEXTURE0);
pglClientActiveTextureARB(GL_TEXTURE0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
// Set alpha to 1.0
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_CONSTANT);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
static const float one[4] = { 1.f, 1.f, 1.f, 1.f };
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, one);
PROFILE_START("render terrain base");
CPatchRData::RenderBases(visiblePatches, CShaderDefines(), NULL, true, dummyShader);
PROFILE_END("render terrain base");
// render blends
// switch on the composite alpha map texture
(void)ogl_tex_bind(g_Renderer.m_hCompositeAlphaMap, 1);
// switch on second uv set
pglClientActiveTextureARB(GL_TEXTURE1);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
// setup additional texenv required by blend pass
pglActiveTextureARB(GL_TEXTURE1);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_ONE_MINUS_SRC_ALPHA);
// switch on blending
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// no need to write to the depth buffer a second time
glDepthMask(0);
// The decal color array contains lighting data, which we don't want in this non-shader mode
glDisableClientState(GL_COLOR_ARRAY);
// render blend passes for each patch
PROFILE_START("render terrain blends");
CPatchRData::RenderBlends(visiblePatches, CShaderDefines(), NULL, true, dummyShader);
PROFILE_END("render terrain blends");
// Disable second texcoord array
pglClientActiveTextureARB(GL_TEXTURE1);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
// Render terrain decals
g_Renderer.BindTexture(1, 0);
pglActiveTextureARB(GL_TEXTURE0);
pglClientActiveTextureARB(GL_TEXTURE0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
PROFILE_START("render terrain decals");
CDecalRData::RenderDecals(visibleDecals, CShaderDefines(), NULL, true, dummyShader);
PROFILE_END("render terrain decals");
// Now apply lighting
const CLightEnv& lightEnv = g_Renderer.GetLightEnv();
pglClientActiveTextureARB(GL_TEXTURE0);
glEnableClientState(GL_COLOR_ARRAY); // diffuse lighting colours
// The vertex color is scaled by 0.5 to permit overbrightness without clamping.
// We therefore need to draw clamp((texture*lighting)*2.0), where 'texture'
// is what previous passes drew onto the framebuffer, and 'lighting' is the
// color computed by this pass.
// We can do that with blending by getting it to draw dst*src + src*dst:
glBlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
// Scale the ambient color by 0.5 to match the vertex diffuse colors
float terrainAmbientColor[4] = {
lightEnv.m_TerrainAmbientColor.X * 0.5f,
lightEnv.m_TerrainAmbientColor.Y * 0.5f,
lightEnv.m_TerrainAmbientColor.Z * 0.5f,
1.f
};
CLOSTexture& losTexture = g_Renderer.GetScene().GetLOSTexture();
int streamflags = STREAM_POS|STREAM_COLOR;
pglActiveTextureARB(GL_TEXTURE0);
// We're not going to use a texture here, but we have to have a valid texture
// bound else the texture unit will be disabled.
// We should still have a bound splat texture from some earlier rendering,
// so assume that's still valid to use.
// (TODO: That's a bit of an ugly hack.)
// No shadows: (Ambient + Diffuse) * LOS
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_ADD);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_CONSTANT);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, terrainAmbientColor);
losTexture.BindTexture(1);
pglClientActiveTextureARB(GL_TEXTURE1);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
streamflags |= STREAM_POSTOUV1;
glMatrixMode(GL_TEXTURE);
glLoadMatrixf(&losTexture.GetTextureMatrix()._11);
glMatrixMode(GL_MODELVIEW);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_ALPHA);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
pglActiveTextureARB(GL_TEXTURE0);
pglClientActiveTextureARB(GL_TEXTURE0);
PROFILE_START("render terrain streams");
CPatchRData::RenderStreams(visiblePatches, dummyShader, streamflags);
PROFILE_END("render terrain streams");
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
// restore OpenGL state
g_Renderer.BindTexture(1, 0);
pglClientActiveTextureARB(GL_TEXTURE1);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
pglClientActiveTextureARB(GL_TEXTURE0);
pglActiveTextureARB(GL_TEXTURE0);
glDepthMask(1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_BLEND);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
dummyShader->Unbind();
#endif
}
// Render fancy water
bool TerrainRenderer::RenderFancyWater()
{
PROFILE3_GPU("fancy water");
// If we're using fancy water, make sure its shader is loaded
if (!m->fancyWaterShader)
{
m->fancyWaterShader = g_Renderer.GetShaderManager().LoadProgram("glsl/water_high", CShaderDefines());
if (!m->fancyWaterShader)
{
LOGERROR(L"Failed to load water shader. Falling back to non-fancy water.\n");
g_Renderer.m_Options.m_FancyWater = false;
return false;
}
}
WaterManager* WaterMgr = g_Renderer.GetWaterManager();
CLOSTexture& losTexture = g_Renderer.GetScene().GetLOSTexture();
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
double time = WaterMgr->m_WaterTexTimer;
double period = 1.6;
int curTex = (int)(time*60/period) % 60;
m->fancyWaterShader->Bind();
m->fancyWaterShader->BindTexture("normalMap", WaterMgr->m_NormalMap[curTex]);
// Shift the texture coordinates by these amounts to make the water "flow"
float tx = -fmod(time, 81.0)/81.0;
float ty = -fmod(time, 34.0)/34.0;
float repeatPeriod = WaterMgr->m_RepeatPeriod;
const CCamera& camera = g_Renderer.GetViewCamera();
CVector3D camPos = camera.m_Orientation.GetTranslation();
// Bind reflection and refraction textures
m->fancyWaterShader->BindTexture("reflectionMap", WaterMgr->m_ReflectionTexture);
m->fancyWaterShader->BindTexture("refractionMap", WaterMgr->m_RefractionTexture);
m->fancyWaterShader->BindTexture("losMap", losTexture.GetTexture());
const CLightEnv& lightEnv = g_Renderer.GetLightEnv();
m->fancyWaterShader->Uniform("ambient", lightEnv.m_TerrainAmbientColor);
m->fancyWaterShader->Uniform("sunDir", lightEnv.GetSunDir());
m->fancyWaterShader->Uniform("sunColor", lightEnv.m_SunColor.X);
m->fancyWaterShader->Uniform("shininess", WaterMgr->m_Shininess);
m->fancyWaterShader->Uniform("specularStrength", WaterMgr->m_SpecularStrength);
m->fancyWaterShader->Uniform("waviness", WaterMgr->m_Waviness);
m->fancyWaterShader->Uniform("murkiness", WaterMgr->m_Murkiness);
m->fancyWaterShader->Uniform("fullDepth", WaterMgr->m_WaterFullDepth);
m->fancyWaterShader->Uniform("tint", WaterMgr->m_WaterTint);
m->fancyWaterShader->Uniform("reflectionTintStrength", WaterMgr->m_ReflectionTintStrength);
m->fancyWaterShader->Uniform("reflectionTint", WaterMgr->m_ReflectionTint);
m->fancyWaterShader->Uniform("translation", tx, ty);
m->fancyWaterShader->Uniform("repeatScale", 1.0f / repeatPeriod);
m->fancyWaterShader->Uniform("reflectionMatrix", WaterMgr->m_ReflectionMatrix);
m->fancyWaterShader->Uniform("refractionMatrix", WaterMgr->m_RefractionMatrix);
m->fancyWaterShader->Uniform("losMatrix", losTexture.GetTextureMatrix());
m->fancyWaterShader->Uniform("cameraPos", camPos);
for (size_t i = 0; i < m->visiblePatches.size(); ++i)
{
CPatchRData* data = m->visiblePatches[i];
data->RenderWater(m->fancyWaterShader);
}
m->fancyWaterShader->Unbind();
pglActiveTextureARB(GL_TEXTURE0);
glDisable(GL_BLEND);
return true;
}
void TerrainRenderer::RenderTerrainShader(const CShaderDefines& context, ShadowMap* shadow, bool filtered)
{
ENSURE(m->phase == Phase_Render);
std::vector<CPatchRData*>& visiblePatches = filtered ? m->filteredPatches : m->visiblePatches;
std::vector<CDecalRData*>& visibleDecals = filtered ? m->filteredDecals : m->visibleDecals;
if (visiblePatches.empty() && visibleDecals.empty())
return;
CShaderManager& shaderManager = g_Renderer.GetShaderManager();
CShaderTechniquePtr techBase(shaderManager.LoadEffect(CStrIntern("terrain_base"), context, CShaderDefines()));
CShaderTechniquePtr techBlend(shaderManager.LoadEffect(CStrIntern("terrain_blend"), context, CShaderDefines()));
CShaderTechniquePtr techDecal(shaderManager.LoadEffect(CStrIntern("terrain_decal"), context, CShaderDefines()));
// render the solid black sides of the map first
CShaderTechniquePtr techSolid = g_Renderer.GetShaderManager().LoadEffect("gui_solid");
techSolid->BeginPass();
CShaderProgramPtr shaderSolid = techSolid->GetShader();
shaderSolid->Uniform("transform", g_Renderer.GetViewCamera().GetViewProjection());
shaderSolid->Uniform("color", 0.0f, 0.0f, 0.0f, 1.0f);
PROFILE_START("render terrain sides");
for (size_t i = 0; i < visiblePatches.size(); ++i)
visiblePatches[i]->RenderSides(shaderSolid);
PROFILE_END("render terrain sides");
techSolid->EndPass();
techBase->BeginPass();
PrepareShader(techBase->GetShader(), shadow);
PROFILE_START("render terrain base");
CPatchRData::RenderBases(visiblePatches, techBase->GetShader(), false);
PROFILE_END("render terrain base");
techBase->EndPass();
// render blends
techBlend->BeginPass();
PrepareShader(techBlend->GetShader(), shadow);
// switch on blending
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// no need to write to the depth buffer a second time
glDepthMask(0);
// render blend passes for each patch
PROFILE_START("render terrain blends");
CPatchRData::RenderBlends(visiblePatches, techBlend->GetShader(), false);
PROFILE_END("render terrain blends");
techBlend->EndPass();
// Render terrain decals
techDecal->BeginPass();
PrepareShader(techDecal->GetShader(), shadow);
PROFILE_START("render terrain decals");
for (size_t i = 0; i < visibleDecals.size(); ++i)
visibleDecals[i]->Render(techDecal->GetShader(), false);
PROFILE_END("render terrain decals");
techDecal->EndPass();
// restore OpenGL state
g_Renderer.BindTexture(1, 0);
g_Renderer.BindTexture(2, 0);
g_Renderer.BindTexture(3, 0);
glDepthMask(1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_BLEND);
}
