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https://github.com/luanti-org/luanti.git
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Add API to control shadow intensity from the game/mod (#11944)
* Also Disable shadows when sun/moon is hidden. Fixes #11972.
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GitHub
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8d55702d13
commit
0f25fa7af6
24 changed files with 375 additions and 169 deletions
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@ -18,6 +18,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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*/
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#include <cstring>
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#include <cmath>
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#include "client/shadows/dynamicshadowsrender.h"
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#include "client/shadows/shadowsScreenQuad.h"
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#include "client/shadows/shadowsshadercallbacks.h"
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@ -33,9 +34,13 @@ ShadowRenderer::ShadowRenderer(IrrlichtDevice *device, Client *client) :
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m_device(device), m_smgr(device->getSceneManager()),
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m_driver(device->getVideoDriver()), m_client(client), m_current_frame(0)
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{
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m_shadows_supported = true; // assume shadows supported. We will check actual support in initialize
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m_shadows_enabled = true;
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m_shadow_strength = g_settings->getFloat("shadow_strength");
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m_shadow_strength_gamma = g_settings->getFloat("shadow_strength_gamma");
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if (std::isnan(m_shadow_strength_gamma))
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m_shadow_strength_gamma = 1.0f;
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m_shadow_strength_gamma = core::clamp(m_shadow_strength_gamma, 0.1f, 10.0f);
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m_shadow_map_max_distance = g_settings->getFloat("shadow_map_max_distance");
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@ -49,6 +54,9 @@ ShadowRenderer::ShadowRenderer(IrrlichtDevice *device, Client *client) :
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ShadowRenderer::~ShadowRenderer()
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{
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// call to disable releases dynamically allocated resources
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disable();
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if (m_shadow_depth_cb)
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delete m_shadow_depth_cb;
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if (m_shadow_mix_cb)
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@ -72,15 +80,25 @@ ShadowRenderer::~ShadowRenderer()
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m_driver->removeTexture(shadowMapClientMapFuture);
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}
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void ShadowRenderer::disable()
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{
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m_shadows_enabled = false;
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if (shadowMapTextureFinal) {
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m_driver->setRenderTarget(shadowMapTextureFinal, true, true,
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video::SColor(255, 255, 255, 255));
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m_driver->setRenderTarget(0, true, true);
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}
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}
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void ShadowRenderer::initialize()
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{
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auto *gpu = m_driver->getGPUProgrammingServices();
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// we need glsl
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if (m_shadows_enabled && gpu && m_driver->queryFeature(video::EVDF_ARB_GLSL)) {
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if (m_shadows_supported && gpu && m_driver->queryFeature(video::EVDF_ARB_GLSL)) {
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createShaders();
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} else {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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warningstream << "Shadows: GLSL Shader not supported on this system."
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<< std::endl;
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@ -94,6 +112,8 @@ void ShadowRenderer::initialize()
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m_texture_format_color = m_shadow_map_texture_32bit
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? video::ECOLOR_FORMAT::ECF_G32R32F
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: video::ECOLOR_FORMAT::ECF_G16R16F;
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m_shadows_enabled &= m_shadows_supported;
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}
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@ -124,6 +144,16 @@ f32 ShadowRenderer::getMaxShadowFar() const
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return 0.0f;
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}
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void ShadowRenderer::setShadowIntensity(float shadow_intensity)
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{
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m_shadow_strength = pow(shadow_intensity, 1.0f / m_shadow_strength_gamma);
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if (m_shadow_strength > 1E-2)
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enable();
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else
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disable();
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}
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void ShadowRenderer::addNodeToShadowList(
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scene::ISceneNode *node, E_SHADOW_MODE shadowMode)
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{
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@ -153,6 +183,7 @@ void ShadowRenderer::updateSMTextures()
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shadowMapTextureDynamicObjects = getSMTexture(
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std::string("shadow_dynamic_") + itos(m_shadow_map_texture_size),
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m_texture_format, true);
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assert(shadowMapTextureDynamicObjects != nullptr);
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}
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if (!shadowMapClientMap) {
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@ -161,6 +192,7 @@ void ShadowRenderer::updateSMTextures()
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std::string("shadow_clientmap_") + itos(m_shadow_map_texture_size),
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m_shadow_map_colored ? m_texture_format_color : m_texture_format,
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true);
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assert(shadowMapClientMap != nullptr);
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}
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if (!shadowMapClientMapFuture && m_map_shadow_update_frames > 1) {
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@ -168,6 +200,7 @@ void ShadowRenderer::updateSMTextures()
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std::string("shadow_clientmap_bb_") + itos(m_shadow_map_texture_size),
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m_shadow_map_colored ? m_texture_format_color : m_texture_format,
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true);
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assert(shadowMapClientMapFuture != nullptr);
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}
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if (m_shadow_map_colored && !shadowMapTextureColors) {
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@ -175,6 +208,7 @@ void ShadowRenderer::updateSMTextures()
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std::string("shadow_colored_") + itos(m_shadow_map_texture_size),
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m_shadow_map_colored ? m_texture_format_color : m_texture_format,
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true);
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assert(shadowMapTextureColors != nullptr);
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}
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// The merge all shadowmaps texture
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@ -194,6 +228,7 @@ void ShadowRenderer::updateSMTextures()
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shadowMapTextureFinal = getSMTexture(
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std::string("shadowmap_final_") + itos(m_shadow_map_texture_size),
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frt, true);
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assert(shadowMapTextureFinal != nullptr);
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}
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if (!m_shadow_node_array.empty() && !m_light_list.empty()) {
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@ -270,6 +305,10 @@ void ShadowRenderer::update(video::ITexture *outputTarget)
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updateSMTextures();
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if (shadowMapTextureFinal == nullptr) {
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return;
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}
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if (!m_shadow_node_array.empty() && !m_light_list.empty()) {
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for (DirectionalLight &light : m_light_list) {
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@ -307,19 +346,23 @@ void ShadowRenderer::drawDebug()
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/* this code just shows shadows textures in screen and in ONLY for debugging*/
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#if 0
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// this is debug, ignore for now.
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m_driver->draw2DImage(shadowMapTextureFinal,
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core::rect<s32>(0, 50, 128, 128 + 50),
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core::rect<s32>({0, 0}, shadowMapTextureFinal->getSize()));
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if (shadowMapTextureFinal)
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m_driver->draw2DImage(shadowMapTextureFinal,
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core::rect<s32>(0, 50, 128, 128 + 50),
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core::rect<s32>({0, 0}, shadowMapTextureFinal->getSize()));
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m_driver->draw2DImage(shadowMapClientMap,
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core::rect<s32>(0, 50 + 128, 128, 128 + 50 + 128),
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core::rect<s32>({0, 0}, shadowMapTextureFinal->getSize()));
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m_driver->draw2DImage(shadowMapTextureDynamicObjects,
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core::rect<s32>(0, 128 + 50 + 128, 128,
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128 + 50 + 128 + 128),
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core::rect<s32>({0, 0}, shadowMapTextureDynamicObjects->getSize()));
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if (shadowMapClientMap)
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m_driver->draw2DImage(shadowMapClientMap,
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core::rect<s32>(0, 50 + 128, 128, 128 + 50 + 128),
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core::rect<s32>({0, 0}, shadowMapTextureFinal->getSize()));
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if (shadowMapTextureDynamicObjects)
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m_driver->draw2DImage(shadowMapTextureDynamicObjects,
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core::rect<s32>(0, 128 + 50 + 128, 128,
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128 + 50 + 128 + 128),
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core::rect<s32>({0, 0}, shadowMapTextureDynamicObjects->getSize()));
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if (m_shadow_map_colored) {
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if (m_shadow_map_colored && shadowMapTextureColors) {
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m_driver->draw2DImage(shadowMapTextureColors,
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core::rect<s32>(128,128 + 50 + 128 + 128,
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@ -469,13 +512,13 @@ void ShadowRenderer::createShaders()
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if (depth_shader == -1) {
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std::string depth_shader_vs = getShaderPath("shadow_shaders", "pass1_vertex.glsl");
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if (depth_shader_vs.empty()) {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error shadow mapping vs shader not found." << std::endl;
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return;
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}
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std::string depth_shader_fs = getShaderPath("shadow_shaders", "pass1_fragment.glsl");
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if (depth_shader_fs.empty()) {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error shadow mapping fs shader not found." << std::endl;
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return;
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}
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@ -490,7 +533,7 @@ void ShadowRenderer::createShaders()
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if (depth_shader == -1) {
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// upsi, something went wrong loading shader.
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delete m_shadow_depth_cb;
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error compiling shadow mapping shader." << std::endl;
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return;
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}
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@ -506,13 +549,13 @@ void ShadowRenderer::createShaders()
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if (depth_shader_entities == -1) {
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std::string depth_shader_vs = getShaderPath("shadow_shaders", "pass1_vertex.glsl");
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if (depth_shader_vs.empty()) {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error shadow mapping vs shader not found." << std::endl;
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return;
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}
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std::string depth_shader_fs = getShaderPath("shadow_shaders", "pass1_fragment.glsl");
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if (depth_shader_fs.empty()) {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error shadow mapping fs shader not found." << std::endl;
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return;
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}
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@ -525,7 +568,7 @@ void ShadowRenderer::createShaders()
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if (depth_shader_entities == -1) {
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// upsi, something went wrong loading shader.
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error compiling shadow mapping shader (dynamic)." << std::endl;
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return;
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}
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@ -539,14 +582,14 @@ void ShadowRenderer::createShaders()
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if (mixcsm_shader == -1) {
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std::string depth_shader_vs = getShaderPath("shadow_shaders", "pass2_vertex.glsl");
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if (depth_shader_vs.empty()) {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error cascade shadow mapping fs shader not found." << std::endl;
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return;
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}
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std::string depth_shader_fs = getShaderPath("shadow_shaders", "pass2_fragment.glsl");
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if (depth_shader_fs.empty()) {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error cascade shadow mapping fs shader not found." << std::endl;
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return;
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}
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@ -565,7 +608,7 @@ void ShadowRenderer::createShaders()
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// upsi, something went wrong loading shader.
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delete m_shadow_mix_cb;
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delete m_screen_quad;
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error compiling cascade shadow mapping shader." << std::endl;
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return;
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}
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@ -579,13 +622,13 @@ void ShadowRenderer::createShaders()
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if (m_shadow_map_colored && depth_shader_trans == -1) {
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std::string depth_shader_vs = getShaderPath("shadow_shaders", "pass1_trans_vertex.glsl");
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if (depth_shader_vs.empty()) {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error shadow mapping vs shader not found." << std::endl;
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return;
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}
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std::string depth_shader_fs = getShaderPath("shadow_shaders", "pass1_trans_fragment.glsl");
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if (depth_shader_fs.empty()) {
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error shadow mapping fs shader not found." << std::endl;
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return;
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}
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@ -601,7 +644,7 @@ void ShadowRenderer::createShaders()
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// upsi, something went wrong loading shader.
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delete m_shadow_depth_trans_cb;
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m_shadow_map_colored = false;
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m_shadows_enabled = false;
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m_shadows_supported = false;
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errorstream << "Error compiling colored shadow mapping shader." << std::endl;
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return;
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}
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