void CSM3GroundDrawer::DrawShadowPass()
{
if (!shadowrc)
return;
shadowCam.fov = camera->GetHalfFov()*2.0f; // Why *2?
shadowCam.front = camera->forward;
shadowCam.right = camera->right;
shadowCam.up = camera->up;
shadowCam.pos = camera->GetPos();
shadowCam.aspect = 1.0f;
Shader::IProgramObject* po =
shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_MAP);
glPolygonOffset(1, 1);
glEnable(GL_POLYGON_OFFSET_FILL);
glEnable(GL_CULL_FACE);
glCullFace(GL_FRONT);
po->Enable();
tr->SetActiveContext(shadowrc);
tr->DrawSimple();
tr->SetActiveContext(rc);
po->Disable();
glCullFace(GL_BACK);
glDisable(GL_CULL_FACE);
glDisable(GL_POLYGON_OFFSET_FILL);
}
Shader::IProgramObject* CShaderHandler::CreateProgramObject(
const std::string& poClass,
const std::string& poName,
const std::string& vsStr,
const std::string& vsDefs,
const std::string& fsStr,
const std::string& fsDefs,
bool arbProgram
) {
Shader::IProgramObject* po = CreateProgramObject(poClass, poName, arbProgram);
if (po->IsValid()) {
return po;
}
Shader::IShaderObject* vso = CreateShaderObject(vsStr, vsDefs, (arbProgram? GL_VERTEX_PROGRAM_ARB: GL_VERTEX_SHADER));
Shader::IShaderObject* fso = CreateShaderObject(fsStr, fsDefs, (arbProgram? GL_FRAGMENT_PROGRAM_ARB: GL_FRAGMENT_SHADER));
po->AttachShaderObject(vso);
po->AttachShaderObject(fso);
po->Link();
if (!po->IsValid()) {
logOutput.Print("[CShaderHandler::CreateProgramObject]\n");
logOutput.Print("\tprogram-object name: %s, link-log:\n%s\n", poName.c_str(), po->GetLog().c_str());
}
return po;
}
bool SMFRenderStateGLSL::HasValidShader(const DrawPass::e& drawPass) const {
Shader::IProgramObject* shader = nullptr;
switch (drawPass) {
case DrawPass::TerrainDeferred: { shader = glslShaders[GLSL_SHADER_DEFERRED]; } break;
default: { shader = glslShaders[GLSL_SHADER_CURRENT ]; } break;
}
return (shader != nullptr && shader->IsValid());
}
// shadow-pass state management funcs
// FIXME: setup face culling for S3O?
static void SetupDefShadowUnitDrawState(unsigned int modelType, bool deferredPass) {
glDisable(GL_TEXTURE_2D);
glPolygonOffset(1.0f, 1.0f);
glEnable(GL_POLYGON_OFFSET_FILL);
Shader::IProgramObject* po = shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_MODEL);
po->Enable();
po->SetUniformMatrix4fv(1, false, shadowHandler->GetShadowViewMatrix());
po->SetUniformMatrix4fv(2, false, shadowHandler->GetShadowProjMatrix());
}
void CSMFGroundDrawer::DrawBorder(const DrawPass::e drawPass)
{
ISMFRenderState* prvState = smfRenderStates[RENDER_STATE_SEL];
Shader::IProgramObject* shaderProg = &borderShader;
// no need to enable, does nothing
smfRenderStates[RENDER_STATE_SEL] = smfRenderStates[RENDER_STATE_NOP];
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glActiveTexture(GL_TEXTURE2);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, smfMap->GetDetailTexture());
glActiveTexture(GL_TEXTURE0);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE * wireframe + GL_FILL * (1 - wireframe));
#if 0
if (mapRendering->voidWater && (drawPass != DrawPass::WaterReflection)) {
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.9f);
}
#endif
shaderProg->Enable();
shaderProg->SetUniformMatrix4x4<const char*, float>("u_movi_mat", false, camera->GetViewMatrix());
shaderProg->SetUniformMatrix4x4<const char*, float>("u_proj_mat", false, camera->GetProjectionMatrix());
meshDrawer->DrawBorderMesh(drawPass); // calls back into ::SetupBigSquare
shaderProg->Disable();
#if 0
if (mapRendering->voidWater && (drawPass != DrawPass::WaterReflection))
glDisable(GL_ALPHA_TEST);
#endif
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glDisable(GL_BLEND);
glActiveTexture(GL_TEXTURE2);
glDisable(GL_TEXTURE_2D);
glActiveTexture(GL_TEXTURE0);
glDisable(GL_TEXTURE_2D);
glDisable(GL_CULL_FACE);
smfRenderStates[RENDER_STATE_SEL] = prvState;
}
void CShaderHandler::ReleaseProgramObjectsMap(ProgramObjMap& poMap) {
for (auto it = poMap.cbegin(); it != poMap.cend(); ++it) {
Shader::IProgramObject* po = it->second;
// free the program object and its attachments
if (po != Shader::nullProgramObject) {
po->Release(); delete po;
}
}
poMap.clear();
}
bool SMFRenderStateARB::HasValidShader(const DrawPass::e& drawPass) const {
Shader::IProgramObject* shader = nullptr;
switch (drawPass) {
case DrawPass::Normal: { shader = arbShaders[ARB_SHADER_CURRENT]; } break;
case DrawPass::WaterReflection: { shader = arbShaders[ARB_SHADER_REFLECT]; } break;
case DrawPass::WaterRefraction: { shader = arbShaders[ARB_SHADER_REFRACT]; } break;
default: {} break;
}
return (shader != nullptr && shader->IsValid());
}
void CShadowHandler::LoadShadowGenShaderProgs()
{
shadowGenProgs.resize(SHADOWGEN_PROGRAM_LAST);
static const std::string shadowGenProgNames[SHADOWGEN_PROGRAM_LAST] = {
"ARB/unit_genshadow.vp",
"ARB/groundshadow.vp",
"ARB/treeShadow.vp",
"ARB/treeFarShadow.vp",
"ARB/projectileshadow.vp",
};
static const std::string shadowGenProgHandles[SHADOWGEN_PROGRAM_LAST] = {
"ShadowGenShaderProgModel",
"ShadowGenshaderProgMap",
"ShadowGenshaderProgTreeNear",
"ShadowGenshaderProgTreeDist",
"ShadowGenshaderProgProjectile",
};
static const std::string shadowGenProgDefines[SHADOWGEN_PROGRAM_LAST] = {
"#define SHADOWGEN_PROGRAM_MODEL\n",
"#define SHADOWGEN_PROGRAM_MAP\n",
"#define SHADOWGEN_PROGRAM_TREE_NEAR\n",
"#define SHADOWGEN_PROGRAM_TREE_DIST\n",
"#define SHADOWGEN_PROGRAM_PROJECTILE\n",
};
CShaderHandler* sh = shaderHandler;
if (globalRendering->haveGLSL) {
for (int i = 0; i < SHADOWGEN_PROGRAM_LAST; i++) {
Shader::IProgramObject* po = sh->CreateProgramObject("[ShadowHandler]", shadowGenProgHandles[i] + "GLSL", false);
Shader::IShaderObject* so = sh->CreateShaderObject("GLSL/ShadowGenVertProg.glsl", shadowGenProgDefines[i], GL_VERTEX_SHADER);
po->AttachShaderObject(so);
po->Link();
po->SetUniformLocation("shadowParams");
po->SetUniformLocation("cameraDirX"); // used by SHADOWGEN_PROGRAM_TREE_NEAR
po->SetUniformLocation("cameraDirY"); // used by SHADOWGEN_PROGRAM_TREE_NEAR
po->SetUniformLocation("treeOffset"); // used by SHADOWGEN_PROGRAM_TREE_NEAR
shadowGenProgs[i] = po;
}
} else {
for (int i = 0; i < SHADOWGEN_PROGRAM_LAST; i++) {
Shader::IProgramObject* po = sh->CreateProgramObject("[ShadowHandler]", shadowGenProgHandles[i] + "ARB", true);
Shader::IShaderObject* so = sh->CreateShaderObject(shadowGenProgNames[i], "", GL_VERTEX_PROGRAM_ARB);
po->AttachShaderObject(so);
po->Link();
shadowGenProgs[i] = po;
}
}
drawShadows = true;
}
void CFeatureDrawer::DrawShadowPass()
{
glPolygonOffset(1.0f, 1.0f);
glEnable(GL_POLYGON_OFFSET_FILL);
Shader::IProgramObject* po =
shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_MODEL);
po->Enable();
{
GML_RECMUTEX_LOCK(feat); // DrawShadowPass
// note: for the shadow-pass, we want to make sure
// out-of-view features casting frustum-intersecting
// shadows are still rendered, but this is expensive
// and does not make much difference
//
// GetVisibleFeatures(1, false);
// need the alpha-mask for transparent features
glEnable(GL_TEXTURE_2D);
glPushAttrib(GL_COLOR_BUFFER_BIT);
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 0.5f);
// needed for 3do models (else they will use any currently bound texture)
// note: texture0 is by default a 1x1 texture with rgba(0,0,0,255)
// (we are just interested in the 255 alpha here)
glBindTexture(GL_TEXTURE_2D, 0);
// 3DO's have clockwise-wound faces and
// (usually) holes, so disable backface
// culling for them
glDisable(GL_CULL_FACE);
DrawOpaqueFeatures(MODELTYPE_3DO);
glEnable(GL_CULL_FACE);
for (int modelType = MODELTYPE_S3O; modelType < MODELTYPE_OTHER; modelType++) {
DrawOpaqueFeatures(modelType);
}
glPopAttrib();
glDisable(GL_TEXTURE_2D);
}
po->Disable();
glDisable(GL_POLYGON_OFFSET_FILL);
}
void CSMFGroundDrawer::DrawWaterPlane(bool drawWaterReflection) {
if (drawWaterReflection)
return;
GL::RenderDataBuffer& buffer = waterPlaneBuffers[1 - (camera->GetPos().IsInBounds() && !mapRendering->voidWater)];
Shader::IProgramObject* shader = &buffer.GetShader();
shader->Enable();
shader->SetUniformMatrix4x4<const char*, float>("u_movi_mat", false, camera->GetViewMatrix());
shader->SetUniformMatrix4x4<const char*, float>("u_proj_mat", false, camera->GetProjectionMatrix());
shader->SetUniform("planeOffset", std::min(-200.0f, smfMap->GetCurrMinHeight() - 400.0f));
buffer.Submit(GL_TRIANGLE_STRIP, 0, buffer.GetNumElems<VA_TYPE_C>());
shader->Disable();
}
void CSMFGroundDrawer::DrawShadowPass(void)
{
if (mapInfo->map.voidWater && readmap->currMaxHeight < 0.0f) {
return;
}
Shader::IProgramObject* po = shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_MAP);
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(-1.f, -1.f);
po->Enable();
meshDrawer->DrawMesh(DrawPass::Shadow);
po->Disable();
glDisable(GL_POLYGON_OFFSET_FILL);
}
Shader::IProgramObject* CShaderHandler::CreateProgramObject(
const std::string& poClass,
const std::string& poName,
const std::string& vsStr,
const std::string& vsDefs,
const std::string& fsStr,
const std::string& fsDefs,
bool arbProgram
) {
Shader::IProgramObject* po = CreateProgramObject(poClass, poName, arbProgram);
if (po->IsValid()) {
return po;
}
Shader::IShaderObject* vso = CreateShaderObject(vsStr, vsDefs, (arbProgram? GL_VERTEX_PROGRAM_ARB: GL_VERTEX_SHADER));
Shader::IShaderObject* fso = CreateShaderObject(fsStr, fsDefs, (arbProgram? GL_FRAGMENT_PROGRAM_ARB: GL_FRAGMENT_SHADER));
po->AttachShaderObject(vso);
po->AttachShaderObject(fso);
po->Link();
po->Validate();
if (!po->IsValid()) {
const char* fmt = "[%s]\n\tprogram-object name: %s, link-log:\n%s";
const char* log = po->GetLog().c_str();
LOG_L(L_WARNING, fmt, __FUNCTION__, poName.c_str(), log);
}
return po;
}
void CSMFGroundDrawer::DrawShadowPass()
{
if (!globalRendering->drawGround)
return;
if (readMap->HasOnlyVoidWater())
return;
Shader::IProgramObject* po = shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_MAP);
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(spPolygonOffsetScale, spPolygonOffsetUnits); // dz*s + r*u
// also render the border geometry to prevent light-visible backfaces
po->Enable();
po->SetUniformMatrix4fv(1, false, shadowHandler->GetShadowViewMatrix());
po->SetUniformMatrix4fv(2, false, shadowHandler->GetShadowProjMatrix());
meshDrawer->DrawMesh(DrawPass::Shadow);
meshDrawer->DrawBorderMesh(DrawPass::Shadow);
po->Disable();
glDisable(GL_POLYGON_OFFSET_FILL);
}
void CProjectileDrawer::DrawShadowPass()
{
Shader::IProgramObject* po =
shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_PROJECTILE);
glDisable(GL_TEXTURE_2D);
po->Enable();
CProjectile::inArray = false;
CProjectile::va = GetVertexArray();
CProjectile::va->Initialize();
{
GML_RECMUTEX_LOCK(proj); // DrawShadowPass
for (int modelType = MODELTYPE_3DO; modelType < MODELTYPE_OTHER; modelType++) {
DrawProjectilesShadow(modelType);
}
// draw the model-less projectiles
DrawProjectilesSetShadow(renderProjectiles);
}
if (CProjectile::inArray) {
glEnable(GL_TEXTURE_2D);
textureAtlas->BindTexture();
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glAlphaFunc(GL_GREATER,0.3f);
glEnable(GL_ALPHA_TEST);
glShadeModel(GL_SMOOTH);
ph->currentParticles += CProjectile::DrawArray();
}
po->Disable();
glShadeModel(GL_FLAT);
glDisable(GL_ALPHA_TEST);
glDisable(GL_TEXTURE_2D);
}
void CSMFGroundDrawer::CreateBorderShader() {
std::string vsCode = std::move(Shader::GetShaderSource("GLSL/SMFBorderVertProg4.glsl"));
std::string fsCode = std::move(Shader::GetShaderSource("GLSL/SMFBorderFragProg4.glsl"));
Shader::GLSLShaderObject shaderObjs[2] = {{GL_VERTEX_SHADER, vsCode.c_str(), ""}, {GL_FRAGMENT_SHADER, fsCode.c_str(), ""}};
Shader::IProgramObject* shaderProg = &borderShader;
borderShader.AttachShaderObject(&shaderObjs[0]);
borderShader.AttachShaderObject(&shaderObjs[1]);
borderShader.ReloadShaderObjects();
borderShader.CreateAndLink();
borderShader.RecalculateShaderHash();
borderShader.ClearAttachedShaderObjects();
borderShader.Validate();
shaderProg->Enable();
shaderProg->SetUniformMatrix4x4<const char*, float>("u_movi_mat", false, CMatrix44f::Identity());
shaderProg->SetUniformMatrix4x4<const char*, float>("u_proj_mat", false, CMatrix44f::Identity());
shaderProg->SetUniform("u_diffuse_tex_sqr", -1, -1);
shaderProg->SetUniform("u_diffuse_tex", 0);
shaderProg->SetUniform("u_detail_tex", 2);
shaderProg->Disable();
}
void CSMFGroundDrawer::CreateWaterPlanes(bool camOutsideMap) {
{
const float xsize = (smfMap->mapSizeX) >> 2;
const float ysize = (smfMap->mapSizeZ) >> 2;
const float size = std::min(xsize, ysize);
const float alphainc = math::TWOPI / 32.0f;
static std::vector<VA_TYPE_C> verts;
verts.clear();
verts.reserve(4 * (32 + 1) * 2);
const unsigned char fogColor[4] = {
(unsigned char)(255 * sky->fogColor[0]),
(unsigned char)(255 * sky->fogColor[1]),
(unsigned char)(255 * sky->fogColor[2]),
255
};
const unsigned char planeColor[4] = {
(unsigned char)(255 * waterRendering->planeColor[0]),
(unsigned char)(255 * waterRendering->planeColor[1]),
(unsigned char)(255 * waterRendering->planeColor[2]),
255
};
float alpha;
float r1;
float r2;
float3 p;
for (int n = (camOutsideMap) ? 0 : 1; n < 4; ++n) {
if ((n == 1) && !camOutsideMap) {
// don't render vertices under the map
r1 = 2.0f * size;
} else {
r1 = n * n * size;
}
if (n == 3) {
// last stripe: make it thinner (looks better with fog)
r2 = (n + 0.5) * (n + 0.5) * size;
} else {
r2 = (n + 1) * (n + 1) * size;
}
for (alpha = 0.0f; (alpha - math::TWOPI) < alphainc; alpha += alphainc) {
p.x = r1 * fastmath::sin(alpha) + 2.0f * xsize;
p.z = r1 * fastmath::cos(alpha) + 2.0f * ysize;
verts.push_back(VA_TYPE_C{p, {planeColor}});
p.x = r2 * fastmath::sin(alpha) + 2.0f * xsize;
p.z = r2 * fastmath::cos(alpha) + 2.0f * ysize;
verts.push_back(VA_TYPE_C{p, {(n == 3)? fogColor : planeColor}});
}
}
waterPlaneBuffers[camOutsideMap].Init();
waterPlaneBuffers[camOutsideMap].UploadC(verts.size(), 0, verts.data(), nullptr);
}
{
char vsBuf[65536];
char fsBuf[65536];
const char* vsVars = "uniform float planeOffset;\n";
const char* vsCode =
"\tgl_Position = u_proj_mat * u_movi_mat * vec4(a_vertex_xyz + vec3(0.0, planeOffset, 0.0), 1.0);\n"
"\tv_color_rgba = a_color_rgba;\n";
const char* fsVars = "const float v_color_mult = 1.0 / 255.0;\n";
const char* fsCode = "\tf_color_rgba = v_color_rgba * v_color_mult;\n";
GL::RenderDataBuffer::FormatShaderC(vsBuf, vsBuf + sizeof(vsBuf), "", vsVars, vsCode, "VS");
GL::RenderDataBuffer::FormatShaderC(fsBuf, fsBuf + sizeof(fsBuf), "", fsVars, fsCode, "FS");
GL::RenderDataBuffer& renderDataBuffer = waterPlaneBuffers[camOutsideMap];
Shader::GLSLShaderObject shaderObjs[2] = {{GL_VERTEX_SHADER, &vsBuf[0], ""}, {GL_FRAGMENT_SHADER, &fsBuf[0], ""}};
Shader::IProgramObject* shaderProg = renderDataBuffer.CreateShader((sizeof(shaderObjs) / sizeof(shaderObjs[0])), 0, &shaderObjs[0], nullptr);
shaderProg->Enable();
shaderProg->SetUniformMatrix4x4<const char*, float>("u_movi_mat", false, CMatrix44f::Identity());
shaderProg->SetUniformMatrix4x4<const char*, float>("u_proj_mat", false, CMatrix44f::Identity());
shaderProg->SetUniform("planeOffset", 0.0f);
shaderProg->Disable();
}
}
static void ResetDefShadowUnitDrawState(unsigned int modelType, bool deferredPass) {
Shader::IProgramObject* po = shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_MODEL);
po->Disable();
glDisable(GL_POLYGON_OFFSET_FILL);
}
void SMFRenderStateGLSL::Enable(const CSMFGroundDrawer* smfGroundDrawer, const DrawPass::e& drawPass) {
if (useLuaShaders) {
// use raw, GLSLProgramObject::Enable also calls RecompileIfNeeded
glUseProgram(glslShaders[GLSL_SHADER_CURRENT]->GetObjID());
// diffuse textures are always bound (SMFGroundDrawer::SetupBigSquare)
glActiveTexture(GL_TEXTURE0);
return;
}
Shader::IProgramObject* shader = glslShaders[GLSL_SHADER_CURRENT];
const CSMFReadMap* smfMap = smfGroundDrawer->GetReadMap();
const GL::LightHandler* cLightHandler = smfGroundDrawer->GetLightHandler();
GL::LightHandler* mLightHandler = const_cast<GL::LightHandler*>(cLightHandler); // XXX
const float3 cameraPos = camera->GetPos();
const float3 fogParams = {sky->fogStart, sky->fogEnd, globalRendering->viewRange};
const float2 mapParams = {readMap->GetCurrMinHeight(), readMap->GetCurrMaxHeight()};
shader->SetFlag("HAVE_SHADOWS", shadowHandler->ShadowsLoaded());
shader->SetFlag("HAVE_INFOTEX", infoTextureHandler->IsEnabled());
shader->Enable();
shader->SetUniform2v<const char*, float>("mapHeights", &mapParams.x);
shader->SetUniform3v<const char*, float>("cameraPos", &cameraPos.x);
shader->SetUniformMatrix4x4<const char*, float>("viewMat", false, camera->GetViewMatrix());
shader->SetUniformMatrix4x4<const char*, float>("viewMatInv", false, camera->GetViewMatrixInverse());
shader->SetUniformMatrix4x4<const char*, float>("viewProjMat", false, camera->GetViewProjectionMatrix());
shader->SetUniformMatrix4x4<const char*, float>("shadowMat", false, shadowHandler->GetShadowViewMatrix());
shader->SetUniform4v<const char*, float>("shadowParams", shadowHandler->GetShadowParams());
shader->SetUniform3v<const char*, float>("fogParams", &fogParams.x);
shader->SetUniform<const char*, float>("infoTexIntensityMul", float(infoTextureHandler->InMetalMode()) + 1.0f);
if (cLightHandler->NumConfigLights() > 0) {
mLightHandler->Update();
shader->SetUniform4v<const char*, float>("fwdDynLights", cLightHandler->NumUniformVecs(), cLightHandler->GetRawLightDataPtr());
}
switch (drawPass) {
case DrawPass::WaterReflection: { shader->SetUniform4v<const char*, float>("clipPlane", IWater::MapReflClipPlane()); } break;
case DrawPass::WaterRefraction: { shader->SetUniform4v<const char*, float>("clipPlane", IWater::MapRefrClipPlane()); } break;
default: {} break;
}
if (shadowHandler->ShadowsLoaded())
shadowHandler->SetupShadowTexSampler(GL_TEXTURE4);
glActiveTexture(GL_TEXTURE2); glBindTexture(GL_TEXTURE_2D, smfMap->GetDetailTexture());
glActiveTexture(GL_TEXTURE5); glBindTexture(GL_TEXTURE_2D, smfMap->GetNormalsTexture());
glActiveTexture(GL_TEXTURE6); glBindTexture(GL_TEXTURE_2D, smfMap->GetSpecularTexture());
glActiveTexture(GL_TEXTURE7); glBindTexture(GL_TEXTURE_2D, smfMap->GetSplatDetailTexture());
glActiveTexture(GL_TEXTURE8); glBindTexture(GL_TEXTURE_2D, smfMap->GetSplatDistrTexture());
glActiveTexture(GL_TEXTURE9); glBindTexture(GL_TEXTURE_CUBE_MAP, cubeMapHandler->GetSkyReflectionTextureID());
glActiveTexture(GL_TEXTURE10); glBindTexture(GL_TEXTURE_2D, smfMap->GetSkyReflectModTexture());
glActiveTexture(GL_TEXTURE11); glBindTexture(GL_TEXTURE_2D, smfMap->GetBlendNormalsTexture());
glActiveTexture(GL_TEXTURE12); glBindTexture(GL_TEXTURE_2D, smfMap->GetLightEmissionTexture());
glActiveTexture(GL_TEXTURE13); glBindTexture(GL_TEXTURE_2D, smfMap->GetParallaxHeightTexture());
glActiveTexture(GL_TEXTURE14); glBindTexture(GL_TEXTURE_2D, infoTextureHandler->GetCurrentInfoTexture());
for (int i = 0; i < CSMFReadMap::NUM_SPLAT_DETAIL_NORMALS; i++) {
if (smfMap->GetSplatNormalTexture(i) != 0) {
glActiveTexture(GL_TEXTURE15 + i); glBindTexture(GL_TEXTURE_2D, smfMap->GetSplatNormalTexture(i));
}
}
glActiveTexture(GL_TEXTURE0);
}
void CAdvTreeDrawer::Draw(float treeDistance, bool drawReflection)
{
const int activeFarTex = (camera->forward.z < 0.0f)? treeGen->farTex[0]: treeGen->farTex[1];
const bool drawDetailed = ((treeDistance >= 4.0f) || drawReflection);
CBaseGroundDrawer* gd = readmap->GetGroundDrawer();
Shader::IProgramObject* treeShader = NULL;
#define L mapInfo->light
glEnable(GL_ALPHA_TEST);
glEnable(GL_TEXTURE_2D);
if (globalRendering->drawFog) {
glFogfv(GL_FOG_COLOR, mapInfo->atmosphere.fogColor);
glEnable(GL_FOG);
}
if (shadowHandler->shadowsLoaded && !gd->DrawExtraTex()) {
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, activeFarTex);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, shadowHandler->shadowTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL);
glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE_ARB, GL_ALPHA);
treeShader = treeShaders[TREE_PROGRAM_DIST_SHADOW];
treeShader->Enable();
if (globalRendering->haveGLSL) {
treeShader->SetUniformMatrix4fv(7, false, &shadowHandler->shadowMatrix.m[0]);
treeShader->SetUniform4fv(8, &(shadowHandler->GetShadowParams().x));
} else {
treeShader->SetUniformTarget(GL_FRAGMENT_PROGRAM_ARB);
treeShader->SetUniform4f(10, L.groundAmbientColor.x, L.groundAmbientColor.y, L.groundAmbientColor.z, 1.0f);
treeShader->SetUniform4f(11, 0.0f, 0.0f, 0.0f, 1.0f - (sky->GetLight()->GetGroundShadowDensity() * 0.5f));
treeShader->SetUniformTarget(GL_VERTEX_PROGRAM_ARB);
glMatrixMode(GL_MATRIX0_ARB);
glLoadMatrixf(shadowHandler->shadowMatrix.m);
glMatrixMode(GL_MODELVIEW);
}
} else {
glBindTexture(GL_TEXTURE_2D, activeFarTex);
}
const int cx = int(camera->pos.x / (SQUARE_SIZE * TREE_SQUARE_SIZE));
const int cy = int(camera->pos.z / (SQUARE_SIZE * TREE_SQUARE_SIZE));
CAdvTreeSquareDrawer drawer(this, cx, cy, treeDistance * SQUARE_SIZE * TREE_SQUARE_SIZE, drawDetailed);
GML_STDMUTEX_LOCK(tree); // Draw
oldTreeDistance = treeDistance;
// draw far-trees using map-dependent grid-visibility
readmap->GridVisibility(camera, TREE_SQUARE_SIZE, drawer.treeDistance * 2.0f, &drawer);
if (drawDetailed) {
// draw near-trees
const int xstart = std::max( 0, cx - 2);
const int xend = std::min(gs->mapx / TREE_SQUARE_SIZE - 1, cx + 2);
const int ystart = std::max( 0, cy - 2);
const int yend = std::min(gs->mapy / TREE_SQUARE_SIZE - 1, cy + 2);
if (shadowHandler->shadowsLoaded && !gd->DrawExtraTex()) {
treeShader->Disable();
treeShader = treeShaders[TREE_PROGRAM_NEAR_SHADOW];
treeShader->Enable();
if (globalRendering->haveGLSL) {
treeShader->SetUniformMatrix4fv(7, false, &shadowHandler->shadowMatrix.m[0]);
treeShader->SetUniform4fv(8, &(shadowHandler->GetShadowParams().x));
}
glActiveTexture(GL_TEXTURE1);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, treeGen->barkTex);
glActiveTexture(GL_TEXTURE0);
} else {
glBindTexture(GL_TEXTURE_2D, treeGen->barkTex);
treeShader = treeShaders[TREE_PROGRAM_NEAR_BASIC];
treeShader->Enable();
if (!globalRendering->haveGLSL) {
#define MX (gs->pwr2mapx * SQUARE_SIZE)
#define MY (gs->pwr2mapy * SQUARE_SIZE)
treeShader->SetUniformTarget(GL_VERTEX_PROGRAM_ARB);
treeShader->SetUniform4f(15, 1.0f / MX, 1.0f / MY, 1.0f / MX, 1.0f);
#undef MX
#undef MY
}
}
if (globalRendering->haveGLSL) {
treeShader->SetUniform3fv(0, &camera->right[0]);
treeShader->SetUniform3fv(1, &camera->up[0]);
treeShader->SetUniform2f(5, 0.20f * (1.0f / MAX_TREE_HEIGHT), 0.85f);
} else {
treeShader->SetUniformTarget(GL_VERTEX_PROGRAM_ARB);
treeShader->SetUniform3f(13, camera->right.x, camera->right.y, camera->right.z);
treeShader->SetUniform3f( 9, camera->up.x, camera->up.y, camera->up.z );
treeShader->SetUniform4f(11, L.groundSunColor.x, L.groundSunColor.y, L.groundSunColor.z, 0.85f);
treeShader->SetUniform4f(14, L.groundAmbientColor.x, L.groundAmbientColor.y, L.groundAmbientColor.z, 0.85f);
treeShader->SetUniform4f(12, 0.0f, 0.0f, 0.0f, 0.20f * (1.0f / MAX_TREE_HEIGHT)); // w = alpha/height modifier
}
glAlphaFunc(GL_GREATER, 0.5f);
glDisable(GL_BLEND);
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
varr = GetVertexArray();
varr->Initialize();
static FadeTree fadeTrees[3000];
FadeTree* pFT = fadeTrees;
for (TreeSquareStruct* pTSS = trees + ystart * treesX; pTSS <= trees + yend * treesX; pTSS += treesX) {
for (TreeSquareStruct* tss = pTSS + xstart; tss <= pTSS + xend; ++tss) {
tss->lastSeen = gs->frameNum;
varr->EnlargeArrays(12 * tss->trees.size(), 0, VA_SIZE_T); //!alloc room for all tree vertexes
for (std::map<int, TreeStruct>::iterator ti = tss->trees.begin(); ti != tss->trees.end(); ++ti) {
const TreeStruct* ts = &ti->second;
const float3 pos(ts->pos);
if (!camera->InView(pos + float3(0.0f, MAX_TREE_HEIGHT / 2.0f, 0.0f), MAX_TREE_HEIGHT / 2.0f)) {
continue;
}
const float camDist = (pos - camera->pos).SqLength();
int type = ts->type;
float dy = 0.0f;
unsigned int displist;
if (type < 8) {
dy = 0.5f;
displist = treeGen->pineDL + type;
} else {
type -= 8;
dy = 0.0f;
displist = treeGen->leafDL + type;
}
if (camDist < (SQUARE_SIZE * SQUARE_SIZE * 110 * 110)) {
// draw detailed near-distance tree (same as mid-distance trees without alpha)
treeShader->SetUniform3f(((globalRendering->haveGLSL)? 2: 10), pos.x, pos.y, pos.z);
glCallList(displist);
} else if (camDist < (SQUARE_SIZE * SQUARE_SIZE * 125 * 125)) {
// draw mid-distance tree
const float relDist = (pos.distance(camera->pos) - SQUARE_SIZE * 110) / (SQUARE_SIZE * 15);
treeShader->SetUniform3f(((globalRendering->haveGLSL)? 2: 10), pos.x, pos.y, pos.z);
glAlphaFunc(GL_GREATER, 0.8f + relDist * 0.2f);
glCallList(displist);
glAlphaFunc(GL_GREATER, 0.5f);
// save for second pass
pFT->pos = pos;
pFT->deltaY = dy;
pFT->type = type;
pFT->relDist = relDist;
++pFT;
} else {
// draw far-distance tree
DrawTreeVertex(varr, pos, type * 0.125f, dy, false);
}
}
}
}
// reset the world-offset
treeShader->SetUniform3f(((globalRendering->haveGLSL)? 2: 10), 0.0f, 0.0f, 0.0f);
// draw trees that have been marked as falling
for (std::list<FallingTree>::iterator fti = fallingTrees.begin(); fti != fallingTrees.end(); ++fti) {
const float3 pos = fti->pos - UpVector * (fti->fallPos * 20);
if (camera->InView(pos + float3(0.0f, MAX_TREE_HEIGHT / 2, 0.0f), MAX_TREE_HEIGHT / 2.0f)) {
const float ang = fti->fallPos * PI;
const float3 yvec(fti->dir.x * sin(ang), cos(ang), fti->dir.z * sin(ang));
const float3 zvec((yvec.cross(float3(-1.0f, 0.0f, 0.0f))).ANormalize());
const float3 xvec(yvec.cross(zvec));
CMatrix44f transMatrix(pos, xvec, yvec, zvec);
glPushMatrix();
glMultMatrixf(&transMatrix[0]);
int type = fti->type;
int displist = 0;
if (type < 8) {
displist = treeGen->pineDL + type;
} else {
type -= 8;
displist = treeGen->leafDL + type;
}
glCallList(displist);
glPopMatrix();
}
}
if (shadowHandler->shadowsLoaded && !gd->DrawExtraTex()) {
treeShader->Disable();
treeShader = treeShaders[TREE_PROGRAM_DIST_SHADOW];
treeShader->Enable();
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, activeFarTex);
glActiveTexture(GL_TEXTURE0);
} else {
treeShader->Disable();
glBindTexture(GL_TEXTURE_2D, activeFarTex);
}
// draw far-distance trees
varr->DrawArrayT(GL_QUADS);
// draw faded mid-distance trees
for (FadeTree* pFTree = fadeTrees; pFTree < pFT; ++pFTree) {
varr = GetVertexArray();
varr->Initialize();
varr->CheckInitSize(12 * VA_SIZE_T);
DrawTreeVertex(varr, pFTree->pos, pFTree->type * 0.125f, pFTree->deltaY, false);
glAlphaFunc(GL_GREATER, 1.0f - (pFTree->relDist * 0.5f));
varr->DrawArrayT(GL_QUADS);
}
}
if (shadowHandler->shadowsLoaded && !gd->DrawExtraTex()) {
treeShader->Disable();
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, 0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);
glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE_ARB, GL_LUMINANCE);
} else {
glBindTexture(GL_TEXTURE_2D, 0);
}
glDisable(GL_TEXTURE_2D);
glDisable(GL_FOG);
glDisable(GL_ALPHA_TEST);
// clean out squares from memory that are no longer visible
const int startClean = lastListClean * 20 % (nTrees);
const int endClean = gs->frameNum * 20 % (nTrees);
lastListClean = gs->frameNum;
if (startClean > endClean) {
for (TreeSquareStruct* pTSS = trees + startClean; pTSS < trees + nTrees; ++pTSS) {
if ((pTSS->lastSeen < gs->frameNum - 50) && pTSS->displist) {
glDeleteLists(pTSS->displist, 1);
pTSS->displist = 0;
}
if ((pTSS->lastSeenFar < gs->frameNum - 50) && pTSS->farDisplist) {
glDeleteLists(pTSS->farDisplist, 1);
pTSS->farDisplist = 0;
}
}
for (TreeSquareStruct* pTSS = trees; pTSS < trees + endClean; ++pTSS) {
if ((pTSS->lastSeen < gs->frameNum - 50) && pTSS->displist) {
glDeleteLists(pTSS->displist, 1);
pTSS->displist = 0;
}
if ((pTSS->lastSeenFar < gs->frameNum - 50) && pTSS->farDisplist) {
glDeleteLists(pTSS->farDisplist, 1);
pTSS->farDisplist = 0;
}
}
} else {
for (TreeSquareStruct* pTSS = trees + startClean; pTSS < trees + endClean; ++pTSS) {
if ((pTSS->lastSeen < gs->frameNum - 50) && pTSS->displist) {
glDeleteLists(pTSS->displist, 1);
pTSS->displist = 0;
}
if ((pTSS->lastSeenFar < gs->frameNum - 50) && pTSS->farDisplist) {
glDeleteLists(pTSS->farDisplist, 1);
pTSS->farDisplist = 0;
}
}
}
#undef L
}
void CAdvTreeDrawer::DrawShadowPass(void)
{
const float treeDistance = oldTreeDistance;
const int activeFarTex = (camera->forward.z < 0.0f)? treeGen->farTex[0] : treeGen->farTex[1];
const bool drawDetailed = (treeDistance >= 4.0f);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, activeFarTex);
glEnable(GL_TEXTURE_2D);
glEnable(GL_ALPHA_TEST);
glDisable(GL_CULL_FACE);
glPolygonOffset(1, 1);
glEnable(GL_POLYGON_OFFSET_FILL);
CAdvTreeSquareDrawer_SP drawer;
const int cx = drawer.cx = (int)(camera->pos.x / (SQUARE_SIZE * TREE_SQUARE_SIZE));
const int cy = drawer.cy = (int)(camera->pos.z / (SQUARE_SIZE * TREE_SQUARE_SIZE));
drawer.drawDetailed = drawDetailed;
drawer.td = this;
drawer.treeDistance = treeDistance * SQUARE_SIZE * TREE_SQUARE_SIZE;
Shader::IProgramObject* po = NULL;
GML_STDMUTEX_LOCK(tree); // DrawShadowPass
// draw with extraSize=1
readmap->GridVisibility(camera, TREE_SQUARE_SIZE, drawer.treeDistance * 2.0f, &drawer, 1);
if (drawDetailed) {
const int xstart = std::max( 0, cx - 2);
const int xend = std::min(gs->mapx / TREE_SQUARE_SIZE - 1, cx + 2);
const int ystart = std::max( 0, cy - 2);
const int yend = std::min(gs->mapy / TREE_SQUARE_SIZE - 1, cy + 2);
glBindTexture(GL_TEXTURE_2D, treeGen->barkTex);
glEnable(GL_TEXTURE_2D);
po = shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_TREE_NEAR);
po->Enable();
if (globalRendering->haveGLSL) {
po->SetUniform3fv(1, &camera->right[0]);
po->SetUniform3fv(2, &camera->up[0]);
} else {
po->SetUniformTarget(GL_VERTEX_PROGRAM_ARB);
po->SetUniform4f(13, camera->right.x, camera->right.y, camera->right.z, 0.0f);
po->SetUniform4f(9, camera->up.x, camera->up.y, camera->up.z, 0.0f);
po->SetUniform4f(11, 1.0f, 1.0f, 1.0f, 0.85f );
po->SetUniform4f(12, 0.0f, 0.0f, 0.0f, 0.20f * (1.0f / MAX_TREE_HEIGHT)); // w = alpha/height modifier
}
glAlphaFunc(GL_GREATER, 0.5f);
glEnable(GL_ALPHA_TEST);
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
varr = GetVertexArray();
varr->Initialize();
static FadeTree fadeTrees[3000];
FadeTree* pFT = fadeTrees;
for (TreeSquareStruct* pTSS = trees + ystart * treesX; pTSS <= trees + yend * treesX; pTSS += treesX) {
for (TreeSquareStruct* tss = pTSS + xstart; tss <= pTSS + xend; ++tss) {
tss->lastSeen = gs->frameNum;
varr->EnlargeArrays(12 * tss->trees.size(), 0, VA_SIZE_T); //!alloc room for all tree vertexes
for (std::map<int, TreeStruct>::iterator ti = tss->trees.begin(); ti != tss->trees.end(); ++ti) {
const TreeStruct* ts = &ti->second;
const float3 pos(ts->pos);
if (!camera->InView(pos + float3(0, MAX_TREE_HEIGHT / 2, 0), MAX_TREE_HEIGHT / 2 + 150)) {
continue;
}
const float camDist = (pos - camera->pos).SqLength();
int type = ts->type;
float dy = 0.0f;
unsigned int displist;
if (type < 8) {
dy = 0.5f;
displist = treeGen->pineDL + type;
} else {
type -= 8;
dy = 0;
displist = treeGen->leafDL + type;
}
if (camDist < SQUARE_SIZE * SQUARE_SIZE * 110 * 110) {
po->SetUniform3f((globalRendering->haveGLSL? 3: 10), pos.x, pos.y, pos.z);
glCallList(displist);
} else if (camDist < SQUARE_SIZE * SQUARE_SIZE * 125 * 125) {
const float relDist = (pos.distance(camera->pos) - SQUARE_SIZE * 110) / (SQUARE_SIZE * 15);
glAlphaFunc(GL_GREATER, 0.8f + relDist * 0.2f);
po->SetUniform3f((globalRendering->haveGLSL? 3: 10), pos.x, pos.y, pos.z);
glCallList(displist);
glAlphaFunc(GL_GREATER, 0.5f);
pFT->pos = pos;
pFT->deltaY = dy;
pFT->type = type;
pFT->relDist = relDist;
++pFT;
} else {
DrawTreeVertex(varr, pos, type * 0.125f, dy, false);
}
}
}
}
po->SetUniform3f((globalRendering->haveGLSL? 3: 10), 0.0f, 0.0f, 0.0f);
for (std::list<FallingTree>::iterator fti = fallingTrees.begin(); fti != fallingTrees.end(); ++fti) {
const float3 pos = fti->pos - UpVector * (fti->fallPos * 20);
if (camera->InView(pos + float3(0, MAX_TREE_HEIGHT / 2, 0), MAX_TREE_HEIGHT / 2)) {
const float ang = fti->fallPos * PI;
const float3 yvec(fti->dir.x * sin(ang), cos(ang), fti->dir.z * sin(ang));
const float3 zvec((yvec.cross(float3(1.0f, 0.0f, 0.0f))).ANormalize());
const float3 xvec(zvec.cross(yvec));
CMatrix44f transMatrix(pos, xvec, yvec, zvec);
glPushMatrix();
glMultMatrixf(&transMatrix[0]);
int type = fti->type;
int displist;
if (type < 8) {
displist = treeGen->pineDL + type;
} else {
type -= 8;
displist = treeGen->leafDL + type;
}
glCallList(displist);
glPopMatrix();
}
}
po->Disable();
po = shadowHandler->GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_TREE_FAR);
po->Enable();
glBindTexture(GL_TEXTURE_2D, activeFarTex);
varr->DrawArrayT(GL_QUADS);
for (FadeTree* pFTree = fadeTrees; pFTree < pFT; ++pFTree) {
// faded close trees
varr = GetVertexArray();
varr->Initialize();
varr->CheckInitSize(12 * VA_SIZE_T);
DrawTreeVertex(varr, pFTree->pos, pFTree->type * 0.125f, pFTree->deltaY, false);
glAlphaFunc(GL_GREATER, 1.0f - (pFTree->relDist * 0.5f));
varr->DrawArrayT(GL_QUADS);
}
po->Disable();
}
glEnable(GL_CULL_FACE);
glDisable(GL_POLYGON_OFFSET_FILL);
glDisable(GL_TEXTURE_2D);
glDisable(GL_ALPHA_TEST);
}
