diff options
Diffstat (limited to 'src/client/shadows/dynamicshadowsrender.cpp')
-rw-r--r-- | src/client/shadows/dynamicshadowsrender.cpp | 201 |
1 files changed, 140 insertions, 61 deletions
diff --git a/src/client/shadows/dynamicshadowsrender.cpp b/src/client/shadows/dynamicshadowsrender.cpp index a913a9290..944deb801 100644 --- a/src/client/shadows/dynamicshadowsrender.cpp +++ b/src/client/shadows/dynamicshadowsrender.cpp @@ -18,6 +18,7 @@ with this program; if not, write to the Free Software Foundation, Inc., */ #include <cstring> +#include <cmath> #include "client/shadows/dynamicshadowsrender.h" #include "client/shadows/shadowsScreenQuad.h" #include "client/shadows/shadowsshadercallbacks.h" @@ -30,12 +31,19 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "profiler.h" ShadowRenderer::ShadowRenderer(IrrlichtDevice *device, Client *client) : - m_device(device), m_smgr(device->getSceneManager()), - m_driver(device->getVideoDriver()), m_client(client), m_current_frame(0) + m_smgr(device->getSceneManager()), m_driver(device->getVideoDriver()), + m_client(client), m_current_frame(0), + m_perspective_bias_xy(0.8), m_perspective_bias_z(0.5) { + (void) m_client; + + m_shadows_supported = true; // assume shadows supported. We will check actual support in initialize m_shadows_enabled = true; - m_shadow_strength = g_settings->getFloat("shadow_strength"); + m_shadow_strength_gamma = g_settings->getFloat("shadow_strength_gamma"); + if (std::isnan(m_shadow_strength_gamma)) + m_shadow_strength_gamma = 1.0f; + m_shadow_strength_gamma = core::clamp(m_shadow_strength_gamma, 0.1f, 10.0f); m_shadow_map_max_distance = g_settings->getFloat("shadow_map_max_distance"); @@ -49,27 +57,58 @@ ShadowRenderer::ShadowRenderer(IrrlichtDevice *device, Client *client) : ShadowRenderer::~ShadowRenderer() { + // call to disable releases dynamically allocated resources + disable(); + if (m_shadow_depth_cb) delete m_shadow_depth_cb; + if (m_shadow_depth_entity_cb) + delete m_shadow_depth_entity_cb; + if (m_shadow_depth_trans_cb) + delete m_shadow_depth_trans_cb; if (m_shadow_mix_cb) delete m_shadow_mix_cb; m_shadow_node_array.clear(); m_light_list.clear(); +} - if (shadowMapTextureDynamicObjects) +void ShadowRenderer::disable() +{ + m_shadows_enabled = false; + if (shadowMapTextureFinal) { + m_driver->setRenderTarget(shadowMapTextureFinal, true, true, + video::SColor(255, 255, 255, 255)); + m_driver->setRenderTarget(0, false, false); + } + + if (shadowMapTextureDynamicObjects) { m_driver->removeTexture(shadowMapTextureDynamicObjects); + shadowMapTextureDynamicObjects = nullptr; + } - if (shadowMapTextureFinal) + if (shadowMapTextureFinal) { m_driver->removeTexture(shadowMapTextureFinal); + shadowMapTextureFinal = nullptr; + } - if (shadowMapTextureColors) + if (shadowMapTextureColors) { m_driver->removeTexture(shadowMapTextureColors); + shadowMapTextureColors = nullptr; + } - if (shadowMapClientMap) + if (shadowMapClientMap) { m_driver->removeTexture(shadowMapClientMap); + shadowMapClientMap = nullptr; + } - if (shadowMapClientMapFuture) + if (shadowMapClientMapFuture) { m_driver->removeTexture(shadowMapClientMapFuture); + shadowMapClientMapFuture = nullptr; + } + + for (auto node : m_shadow_node_array) + if (node.shadowMode & E_SHADOW_MODE::ESM_RECEIVE) + node.node->setMaterialTexture(TEXTURE_LAYER_SHADOW, nullptr); } void ShadowRenderer::initialize() @@ -77,10 +116,10 @@ void ShadowRenderer::initialize() auto *gpu = m_driver->getGPUProgrammingServices(); // we need glsl - if (m_shadows_enabled && gpu && m_driver->queryFeature(video::EVDF_ARB_GLSL)) { + if (m_shadows_supported && gpu && m_driver->queryFeature(video::EVDF_ARB_GLSL)) { createShaders(); } else { - m_shadows_enabled = false; + m_shadows_supported = false; warningstream << "Shadows: GLSL Shader not supported on this system." << std::endl; @@ -94,6 +133,8 @@ void ShadowRenderer::initialize() m_texture_format_color = m_shadow_map_texture_32bit ? video::ECOLOR_FORMAT::ECF_G32R32F : video::ECOLOR_FORMAT::ECF_G16R16F; + + m_shadows_enabled &= m_shadows_supported; } @@ -118,24 +159,36 @@ size_t ShadowRenderer::getDirectionalLightCount() const f32 ShadowRenderer::getMaxShadowFar() const { if (!m_light_list.empty()) { - float wanted_range = m_client->getEnv().getClientMap().getWantedRange(); - - float zMax = m_light_list[0].getMaxFarValue() > wanted_range - ? wanted_range - : m_light_list[0].getMaxFarValue(); - return zMax * MAP_BLOCKSIZE; + float zMax = m_light_list[0].getFarValue(); + return zMax; } return 0.0f; } +void ShadowRenderer::setShadowIntensity(float shadow_intensity) +{ + m_shadow_strength = pow(shadow_intensity, 1.0f / m_shadow_strength_gamma); + if (m_shadow_strength > 1E-2) + enable(); + else + disable(); +} + void ShadowRenderer::addNodeToShadowList( scene::ISceneNode *node, E_SHADOW_MODE shadowMode) { - m_shadow_node_array.emplace_back(NodeToApply(node, shadowMode)); + if (!node) + return; + m_shadow_node_array.emplace_back(node, shadowMode); + if (shadowMode == ESM_RECEIVE || shadowMode == ESM_BOTH) + node->setMaterialTexture(TEXTURE_LAYER_SHADOW, shadowMapTextureFinal); } void ShadowRenderer::removeNodeFromShadowList(scene::ISceneNode *node) { + if (!node) + return; + node->setMaterialTexture(TEXTURE_LAYER_SHADOW, nullptr); for (auto it = m_shadow_node_array.begin(); it != m_shadow_node_array.end();) { if (it->node == node) { it = m_shadow_node_array.erase(it); @@ -157,6 +210,7 @@ void ShadowRenderer::updateSMTextures() shadowMapTextureDynamicObjects = getSMTexture( std::string("shadow_dynamic_") + itos(m_shadow_map_texture_size), m_texture_format, true); + assert(shadowMapTextureDynamicObjects != nullptr); } if (!shadowMapClientMap) { @@ -165,6 +219,7 @@ void ShadowRenderer::updateSMTextures() std::string("shadow_clientmap_") + itos(m_shadow_map_texture_size), m_shadow_map_colored ? m_texture_format_color : m_texture_format, true); + assert(shadowMapClientMap != nullptr); } if (!shadowMapClientMapFuture && m_map_shadow_update_frames > 1) { @@ -172,6 +227,7 @@ void ShadowRenderer::updateSMTextures() std::string("shadow_clientmap_bb_") + itos(m_shadow_map_texture_size), m_shadow_map_colored ? m_texture_format_color : m_texture_format, true); + assert(shadowMapClientMapFuture != nullptr); } if (m_shadow_map_colored && !shadowMapTextureColors) { @@ -179,6 +235,7 @@ void ShadowRenderer::updateSMTextures() std::string("shadow_colored_") + itos(m_shadow_map_texture_size), m_shadow_map_colored ? m_texture_format_color : m_texture_format, true); + assert(shadowMapTextureColors != nullptr); } // The merge all shadowmaps texture @@ -198,6 +255,11 @@ void ShadowRenderer::updateSMTextures() shadowMapTextureFinal = getSMTexture( std::string("shadowmap_final_") + itos(m_shadow_map_texture_size), frt, true); + assert(shadowMapTextureFinal != nullptr); + + for (auto &node : m_shadow_node_array) + if (node.shadowMode == ESM_RECEIVE || node.shadowMode == ESM_BOTH) + node.node->setMaterialTexture(TEXTURE_LAYER_SHADOW, shadowMapTextureFinal); } if (!m_shadow_node_array.empty() && !m_light_list.empty()) { @@ -205,7 +267,7 @@ void ShadowRenderer::updateSMTextures() // detect if SM should be regenerated for (DirectionalLight &light : m_light_list) { - if (light.should_update_map_shadow) { + if (light.should_update_map_shadow || m_force_update_shadow_map) { light.should_update_map_shadow = false; m_current_frame = 0; reset_sm_texture = true; @@ -219,23 +281,29 @@ void ShadowRenderer::updateSMTextures() // Update SM incrementally: for (DirectionalLight &light : m_light_list) { // Static shader values. - m_shadow_depth_cb->MapRes = (f32)m_shadow_map_texture_size; - m_shadow_depth_cb->MaxFar = (f32)m_shadow_map_max_distance * BS; - + for (auto cb : {m_shadow_depth_cb, m_shadow_depth_entity_cb, m_shadow_depth_trans_cb}) + if (cb) { + cb->MapRes = (f32)m_shadow_map_texture_size; + cb->MaxFar = (f32)m_shadow_map_max_distance * BS; + cb->PerspectiveBiasXY = getPerspectiveBiasXY(); + cb->PerspectiveBiasZ = getPerspectiveBiasZ(); + cb->CameraPos = light.getFuturePlayerPos(); + } + // set the Render Target // right now we can only render in usual RTT, not // Depth texture is available in irrlicth maybe we // should put some gl* fn here - if (m_current_frame < m_map_shadow_update_frames) { + if (m_current_frame < m_map_shadow_update_frames || m_force_update_shadow_map) { m_driver->setRenderTarget(shadowMapTargetTexture, reset_sm_texture, true, video::SColor(255, 255, 255, 255)); renderShadowMap(shadowMapTargetTexture, light); // Render transparent part in one pass. // This is also handled in ClientMap. - if (m_current_frame == m_map_shadow_update_frames - 1) { + if (m_current_frame == m_map_shadow_update_frames - 1 || m_force_update_shadow_map) { if (m_shadow_map_colored) { m_driver->setRenderTarget(0, false, false); m_driver->setRenderTarget(shadowMapTextureColors, @@ -255,7 +323,7 @@ void ShadowRenderer::updateSMTextures() ++m_current_frame; // pass finished, swap textures and commit light changes - if (m_current_frame == m_map_shadow_update_frames) { + if (m_current_frame == m_map_shadow_update_frames || m_force_update_shadow_map) { if (shadowMapClientMapFuture != nullptr) std::swap(shadowMapClientMapFuture, shadowMapClientMap); @@ -263,6 +331,7 @@ void ShadowRenderer::updateSMTextures() for (DirectionalLight &light : m_light_list) light.commitFrustum(); } + m_force_update_shadow_map = false; } } @@ -274,12 +343,18 @@ void ShadowRenderer::update(video::ITexture *outputTarget) updateSMTextures(); + if (shadowMapTextureFinal == nullptr) { + return; + } + + if (!m_shadow_node_array.empty() && !m_light_list.empty()) { for (DirectionalLight &light : m_light_list) { - // Static shader values. - m_shadow_depth_cb->MapRes = (f32)m_shadow_map_texture_size; - m_shadow_depth_cb->MaxFar = (f32)m_shadow_map_max_distance * BS; + // Static shader values for entities are set in updateSMTextures + // SM texture for entities is not updated incrementally and + // must by updated using current player position. + m_shadow_depth_entity_cb->CameraPos = light.getPlayerPos(); // render shadows for the n0n-map objects. m_driver->setRenderTarget(shadowMapTextureDynamicObjects, true, @@ -311,19 +386,23 @@ void ShadowRenderer::drawDebug() /* this code just shows shadows textures in screen and in ONLY for debugging*/ #if 0 // this is debug, ignore for now. - m_driver->draw2DImage(shadowMapTextureFinal, - core::rect<s32>(0, 50, 128, 128 + 50), - core::rect<s32>({0, 0}, shadowMapTextureFinal->getSize())); + if (shadowMapTextureFinal) + m_driver->draw2DImage(shadowMapTextureFinal, + core::rect<s32>(0, 50, 128, 128 + 50), + core::rect<s32>({0, 0}, shadowMapTextureFinal->getSize())); - m_driver->draw2DImage(shadowMapClientMap, - core::rect<s32>(0, 50 + 128, 128, 128 + 50 + 128), - core::rect<s32>({0, 0}, shadowMapTextureFinal->getSize())); - m_driver->draw2DImage(shadowMapTextureDynamicObjects, - core::rect<s32>(0, 128 + 50 + 128, 128, - 128 + 50 + 128 + 128), - core::rect<s32>({0, 0}, shadowMapTextureDynamicObjects->getSize())); + if (shadowMapClientMap) + m_driver->draw2DImage(shadowMapClientMap, + core::rect<s32>(0, 50 + 128, 128, 128 + 50 + 128), + core::rect<s32>({0, 0}, shadowMapTextureFinal->getSize())); + + if (shadowMapTextureDynamicObjects) + m_driver->draw2DImage(shadowMapTextureDynamicObjects, + core::rect<s32>(0, 128 + 50 + 128, 128, + 128 + 50 + 128 + 128), + core::rect<s32>({0, 0}, shadowMapTextureDynamicObjects->getSize())); - if (m_shadow_map_colored) { + if (m_shadow_map_colored && shadowMapTextureColors) { m_driver->draw2DImage(shadowMapTextureColors, core::rect<s32>(128,128 + 50 + 128 + 128, @@ -368,10 +447,6 @@ void ShadowRenderer::renderShadowMap(video::ITexture *target, material.BackfaceCulling = false; material.FrontfaceCulling = true; - material.PolygonOffsetFactor = 4.0f; - material.PolygonOffsetDirection = video::EPO_BACK; - //material.PolygonOffsetDepthBias = 1.0f/4.0f; - //material.PolygonOffsetSlopeScale = -1.f; if (m_shadow_map_colored && pass != scene::ESNRP_SOLID) { material.MaterialType = (video::E_MATERIAL_TYPE) depth_shader_trans; @@ -381,13 +456,13 @@ void ShadowRenderer::renderShadowMap(video::ITexture *target, material.BlendOperation = video::EBO_MIN; } - // FIXME: I don't think this is needed here - map_node->OnAnimate(m_device->getTimer()->getTime()); - m_driver->setTransform(video::ETS_WORLD, map_node->getAbsoluteTransformation()); - map_node->renderMapShadows(m_driver, material, pass, m_current_frame, m_map_shadow_update_frames); + int frame = m_force_update_shadow_map ? 0 : m_current_frame; + int total_frames = m_force_update_shadow_map ? 1 : m_map_shadow_update_frames; + + map_node->renderMapShadows(m_driver, material, pass, frame, total_frames); break; } } @@ -429,10 +504,6 @@ void ShadowRenderer::renderShadowObjects( current_mat.BackfaceCulling = true; current_mat.FrontfaceCulling = false; - current_mat.PolygonOffsetFactor = 1.0f/2048.0f; - current_mat.PolygonOffsetDirection = video::EPO_BACK; - //current_mat.PolygonOffsetDepthBias = 1.0 * 2.8e-6; - //current_mat.PolygonOffsetSlopeScale = -1.f; } m_driver->setTransform(video::ETS_WORLD, @@ -473,13 +544,13 @@ void ShadowRenderer::createShaders() if (depth_shader == -1) { std::string depth_shader_vs = getShaderPath("shadow_shaders", "pass1_vertex.glsl"); if (depth_shader_vs.empty()) { - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error shadow mapping vs shader not found." << std::endl; return; } std::string depth_shader_fs = getShaderPath("shadow_shaders", "pass1_fragment.glsl"); if (depth_shader_fs.empty()) { - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error shadow mapping fs shader not found." << std::endl; return; } @@ -494,7 +565,9 @@ void ShadowRenderer::createShaders() if (depth_shader == -1) { // upsi, something went wrong loading shader. delete m_shadow_depth_cb; + m_shadow_depth_cb = nullptr; m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error compiling shadow mapping shader." << std::endl; return; } @@ -510,26 +583,30 @@ void ShadowRenderer::createShaders() if (depth_shader_entities == -1) { std::string depth_shader_vs = getShaderPath("shadow_shaders", "pass1_vertex.glsl"); if (depth_shader_vs.empty()) { - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error shadow mapping vs shader not found." << std::endl; return; } std::string depth_shader_fs = getShaderPath("shadow_shaders", "pass1_fragment.glsl"); if (depth_shader_fs.empty()) { - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error shadow mapping fs shader not found." << std::endl; return; } + m_shadow_depth_entity_cb = new ShadowDepthShaderCB(); depth_shader_entities = gpu->addHighLevelShaderMaterial( readShaderFile(depth_shader_vs).c_str(), "vertexMain", video::EVST_VS_1_1, readShaderFile(depth_shader_fs).c_str(), "pixelMain", - video::EPST_PS_1_2, m_shadow_depth_cb); + video::EPST_PS_1_2, m_shadow_depth_entity_cb); if (depth_shader_entities == -1) { // upsi, something went wrong loading shader. + delete m_shadow_depth_entity_cb; + m_shadow_depth_entity_cb = nullptr; m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error compiling shadow mapping shader (dynamic)." << std::endl; return; } @@ -543,14 +620,14 @@ void ShadowRenderer::createShaders() if (mixcsm_shader == -1) { std::string depth_shader_vs = getShaderPath("shadow_shaders", "pass2_vertex.glsl"); if (depth_shader_vs.empty()) { - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error cascade shadow mapping fs shader not found." << std::endl; return; } std::string depth_shader_fs = getShaderPath("shadow_shaders", "pass2_fragment.glsl"); if (depth_shader_fs.empty()) { - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error cascade shadow mapping fs shader not found." << std::endl; return; } @@ -569,7 +646,7 @@ void ShadowRenderer::createShaders() // upsi, something went wrong loading shader. delete m_shadow_mix_cb; delete m_screen_quad; - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error compiling cascade shadow mapping shader." << std::endl; return; } @@ -583,13 +660,13 @@ void ShadowRenderer::createShaders() if (m_shadow_map_colored && depth_shader_trans == -1) { std::string depth_shader_vs = getShaderPath("shadow_shaders", "pass1_trans_vertex.glsl"); if (depth_shader_vs.empty()) { - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error shadow mapping vs shader not found." << std::endl; return; } std::string depth_shader_fs = getShaderPath("shadow_shaders", "pass1_trans_fragment.glsl"); if (depth_shader_fs.empty()) { - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error shadow mapping fs shader not found." << std::endl; return; } @@ -604,8 +681,9 @@ void ShadowRenderer::createShaders() if (depth_shader_trans == -1) { // upsi, something went wrong loading shader. delete m_shadow_depth_trans_cb; + m_shadow_depth_trans_cb = nullptr; m_shadow_map_colored = false; - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error compiling colored shadow mapping shader." << std::endl; return; } @@ -622,6 +700,7 @@ std::string ShadowRenderer::readShaderFile(const std::string &path) std::string prefix; if (m_shadow_map_colored) prefix.append("#define COLORED_SHADOWS 1\n"); + prefix.append("#line 0\n"); std::string content; fs::ReadFile(path, content); 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