From 0f25fa7af655b98fa401176a523f269c843d1943 Mon Sep 17 00:00:00 2001 From: x2048 Date: Sat, 26 Mar 2022 16:58:26 +0100 Subject: Add API to control shadow intensity from the game/mod (#11944) * Also Disable shadows when sun/moon is hidden. Fixes #11972. --- builtin/settingtypes.txt | 5 +- client/shaders/nodes_shader/opengl_fragment.glsl | 85 ++++++++++---------- client/shaders/nodes_shader/opengl_vertex.glsl | 57 +++++++------- client/shaders/object_shader/opengl_fragment.glsl | 84 ++++++++++---------- client/shaders/object_shader/opengl_vertex.glsl | 56 ++++++------- doc/lua_api.txt | 7 ++ games/devtest/mods/experimental/init.lua | 1 + games/devtest/mods/experimental/lighting.lua | 8 ++ src/client/client.h | 1 + src/client/game.cpp | 7 +- src/client/localplayer.h | 4 + src/client/shadows/dynamicshadowsrender.cpp | 95 ++++++++++++++++------- src/client/shadows/dynamicshadowsrender.h | 10 ++- src/client/sky.h | 2 + src/defaultsettings.cpp | 2 +- src/lighting.h | 27 +++++++ src/network/clientopcodes.cpp | 1 + src/network/clientpackethandler.cpp | 8 ++ src/network/networkprotocol.h | 7 +- src/remoteplayer.h | 7 ++ src/script/lua_api/l_object.cpp | 43 ++++++++++ src/script/lua_api/l_object.h | 6 ++ src/server.cpp | 17 ++++ src/server.h | 4 + 24 files changed, 375 insertions(+), 169 deletions(-) create mode 100644 games/devtest/mods/experimental/lighting.lua create mode 100644 src/lighting.h diff --git a/builtin/settingtypes.txt b/builtin/settingtypes.txt index ff2d72927..3dc165bd1 100644 --- a/builtin/settingtypes.txt +++ b/builtin/settingtypes.txt @@ -592,9 +592,10 @@ enable_waving_plants (Waving plants) bool false # Requires shaders to be enabled. enable_dynamic_shadows (Dynamic shadows) bool false -# Set the shadow strength. +# Set the shadow strength gamma. +# Adjusts the intensity of in-game dynamic shadows. # Lower value means lighter shadows, higher value means darker shadows. -shadow_strength (Shadow strength) float 0.2 0.05 1.0 +shadow_strength_gamma (Shadow strength gamma) float 1.0 0.1 10.0 # Maximum distance to render shadows. shadow_map_max_distance (Shadow map max distance in nodes to render shadows) float 120.0 10.0 1000.0 diff --git a/client/shaders/nodes_shader/opengl_fragment.glsl b/client/shaders/nodes_shader/opengl_fragment.glsl index e5f5c703a..adc8adccb 100644 --- a/client/shaders/nodes_shader/opengl_fragment.glsl +++ b/client/shaders/nodes_shader/opengl_fragment.glsl @@ -16,6 +16,7 @@ uniform float animationTimer; uniform float f_textureresolution; uniform mat4 m_ShadowViewProj; uniform float f_shadowfar; + uniform float f_shadow_strength; varying float normalOffsetScale; varying float adj_shadow_strength; varying float cosLight; @@ -483,55 +484,57 @@ void main(void) vec4 col = vec4(color.rgb * varColor.rgb, 1.0); #ifdef ENABLE_DYNAMIC_SHADOWS - float shadow_int = 0.0; - vec3 shadow_color = vec3(0.0, 0.0, 0.0); - vec3 posLightSpace = getLightSpacePosition(); + if (f_shadow_strength > 0.0) { + float shadow_int = 0.0; + vec3 shadow_color = vec3(0.0, 0.0, 0.0); + vec3 posLightSpace = getLightSpacePosition(); - float distance_rate = (1 - pow(clamp(2.0 * length(posLightSpace.xy - 0.5),0.0,1.0), 20.0)); - float f_adj_shadow_strength = max(adj_shadow_strength-mtsmoothstep(0.9,1.1, posLightSpace.z ),0.0); + float distance_rate = (1 - pow(clamp(2.0 * length(posLightSpace.xy - 0.5),0.0,1.0), 20.0)); + float f_adj_shadow_strength = max(adj_shadow_strength-mtsmoothstep(0.9,1.1, posLightSpace.z ),0.0); - if (distance_rate > 1e-7) { - + if (distance_rate > 1e-7) { + #ifdef COLORED_SHADOWS - vec4 visibility; - if (cosLight > 0.0) - visibility = getShadowColor(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); - else - visibility = vec4(1.0, 0.0, 0.0, 0.0); - shadow_int = visibility.r; - shadow_color = visibility.gba; + vec4 visibility; + if (cosLight > 0.0) + visibility = getShadowColor(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); + else + visibility = vec4(1.0, 0.0, 0.0, 0.0); + shadow_int = visibility.r; + shadow_color = visibility.gba; #else - if (cosLight > 0.0) - shadow_int = getShadow(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); - else - shadow_int = 1.0; + if (cosLight > 0.0) + shadow_int = getShadow(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); + else + shadow_int = 1.0; #endif - shadow_int *= distance_rate; - shadow_int = clamp(shadow_int, 0.0, 1.0); + shadow_int *= distance_rate; + shadow_int = clamp(shadow_int, 0.0, 1.0); - } + } - // turns out that nightRatio falls off much faster than - // actual brightness of artificial light in relation to natual light. - // Power ratio was measured on torches in MTG (brightness = 14). - float adjusted_night_ratio = pow(max(0.0, nightRatio), 0.6); - - // Apply self-shadowing when light falls at a narrow angle to the surface - // Cosine of the cut-off angle. - const float self_shadow_cutoff_cosine = 0.035; - if (f_normal_length != 0 && cosLight < self_shadow_cutoff_cosine) { - shadow_int = max(shadow_int, 1 - clamp(cosLight, 0.0, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); - shadow_color = mix(vec3(0.0), shadow_color, min(cosLight, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); - } + // turns out that nightRatio falls off much faster than + // actual brightness of artificial light in relation to natual light. + // Power ratio was measured on torches in MTG (brightness = 14). + float adjusted_night_ratio = pow(max(0.0, nightRatio), 0.6); + + // Apply self-shadowing when light falls at a narrow angle to the surface + // Cosine of the cut-off angle. + const float self_shadow_cutoff_cosine = 0.035; + if (f_normal_length != 0 && cosLight < self_shadow_cutoff_cosine) { + shadow_int = max(shadow_int, 1 - clamp(cosLight, 0.0, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); + shadow_color = mix(vec3(0.0), shadow_color, min(cosLight, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); + } - shadow_int *= f_adj_shadow_strength; - - // calculate fragment color from components: - col.rgb = - adjusted_night_ratio * col.rgb + // artificial light - (1.0 - adjusted_night_ratio) * ( // natural light - col.rgb * (1.0 - shadow_int * (1.0 - shadow_color)) + // filtered texture color - dayLight * shadow_color * shadow_int); // reflected filtered sunlight/moonlight + shadow_int *= f_adj_shadow_strength; + + // calculate fragment color from components: + col.rgb = + adjusted_night_ratio * col.rgb + // artificial light + (1.0 - adjusted_night_ratio) * ( // natural light + col.rgb * (1.0 - shadow_int * (1.0 - shadow_color)) + // filtered texture color + dayLight * shadow_color * shadow_int); // reflected filtered sunlight/moonlight + } #endif #if ENABLE_TONE_MAPPING diff --git a/client/shaders/nodes_shader/opengl_vertex.glsl b/client/shaders/nodes_shader/opengl_vertex.glsl index 95cd138a8..5e77ac719 100644 --- a/client/shaders/nodes_shader/opengl_vertex.glsl +++ b/client/shaders/nodes_shader/opengl_vertex.glsl @@ -195,34 +195,35 @@ void main(void) varColor = clamp(color, 0.0, 1.0); #ifdef ENABLE_DYNAMIC_SHADOWS - vec3 nNormal = normalize(vNormal); - cosLight = dot(nNormal, -v_LightDirection); - - // Calculate normal offset scale based on the texel size adjusted for - // curvature of the SM texture. This code must be change together with - // getPerspectiveFactor or any light-space transformation. - vec3 eyeToVertex = worldPosition - eyePosition + cameraOffset; - // Distance from the vertex to the player - float distanceToPlayer = length(eyeToVertex - v_LightDirection * dot(eyeToVertex, v_LightDirection)) / f_shadowfar; - // perspective factor estimation according to the - float perspectiveFactor = distanceToPlayer * bias0 + bias1; - float texelSize = f_shadowfar * perspectiveFactor * perspectiveFactor / - (f_textureresolution * bias1 - perspectiveFactor * bias0); - float slopeScale = clamp(pow(1.0 - cosLight*cosLight, 0.5), 0.0, 1.0); - normalOffsetScale = texelSize * slopeScale; - - if (f_timeofday < 0.2) { - adj_shadow_strength = f_shadow_strength * 0.5 * - (1.0 - mtsmoothstep(0.18, 0.2, f_timeofday)); - } else if (f_timeofday >= 0.8) { - adj_shadow_strength = f_shadow_strength * 0.5 * - mtsmoothstep(0.8, 0.83, f_timeofday); - } else { - adj_shadow_strength = f_shadow_strength * - mtsmoothstep(0.20, 0.25, f_timeofday) * - (1.0 - mtsmoothstep(0.7, 0.8, f_timeofday)); + if (f_shadow_strength > 0.0) { + vec3 nNormal = normalize(vNormal); + cosLight = dot(nNormal, -v_LightDirection); + + // Calculate normal offset scale based on the texel size adjusted for + // curvature of the SM texture. This code must be change together with + // getPerspectiveFactor or any light-space transformation. + vec3 eyeToVertex = worldPosition - eyePosition + cameraOffset; + // Distance from the vertex to the player + float distanceToPlayer = length(eyeToVertex - v_LightDirection * dot(eyeToVertex, v_LightDirection)) / f_shadowfar; + // perspective factor estimation according to the + float perspectiveFactor = distanceToPlayer * bias0 + bias1; + float texelSize = f_shadowfar * perspectiveFactor * perspectiveFactor / + (f_textureresolution * bias1 - perspectiveFactor * bias0); + float slopeScale = clamp(pow(1.0 - cosLight*cosLight, 0.5), 0.0, 1.0); + normalOffsetScale = texelSize * slopeScale; + + if (f_timeofday < 0.2) { + adj_shadow_strength = f_shadow_strength * 0.5 * + (1.0 - mtsmoothstep(0.18, 0.2, f_timeofday)); + } else if (f_timeofday >= 0.8) { + adj_shadow_strength = f_shadow_strength * 0.5 * + mtsmoothstep(0.8, 0.83, f_timeofday); + } else { + adj_shadow_strength = f_shadow_strength * + mtsmoothstep(0.20, 0.25, f_timeofday) * + (1.0 - mtsmoothstep(0.7, 0.8, f_timeofday)); + } + f_normal_length = length(vNormal); } - f_normal_length = length(vNormal); #endif - } diff --git a/client/shaders/object_shader/opengl_fragment.glsl b/client/shaders/object_shader/opengl_fragment.glsl index fdfcec0c8..edb9d2bb1 100644 --- a/client/shaders/object_shader/opengl_fragment.glsl +++ b/client/shaders/object_shader/opengl_fragment.glsl @@ -34,6 +34,8 @@ const float fogShadingParameter = 1.0 / (1.0 - fogStart); uniform float f_textureresolution; uniform mat4 m_ShadowViewProj; uniform float f_shadowfar; + uniform float f_timeofday; + uniform float f_shadow_strength; varying float normalOffsetScale; varying float adj_shadow_strength; varying float cosLight; @@ -470,55 +472,57 @@ void main(void) col.rgb *= vIDiff; #ifdef ENABLE_DYNAMIC_SHADOWS - float shadow_int = 0.0; - vec3 shadow_color = vec3(0.0, 0.0, 0.0); - vec3 posLightSpace = getLightSpacePosition(); + if (f_shadow_strength > 0.0) { + float shadow_int = 0.0; + vec3 shadow_color = vec3(0.0, 0.0, 0.0); + vec3 posLightSpace = getLightSpacePosition(); - float distance_rate = (1 - pow(clamp(2.0 * length(posLightSpace.xy - 0.5),0.0,1.0), 20.0)); - float f_adj_shadow_strength = max(adj_shadow_strength-mtsmoothstep(0.9,1.1, posLightSpace.z ),0.0); + float distance_rate = (1 - pow(clamp(2.0 * length(posLightSpace.xy - 0.5),0.0,1.0), 20.0)); + float f_adj_shadow_strength = max(adj_shadow_strength-mtsmoothstep(0.9,1.1, posLightSpace.z ),0.0); - if (distance_rate > 1e-7) { + if (distance_rate > 1e-7) { #ifdef COLORED_SHADOWS - vec4 visibility; - if (cosLight > 0.0) - visibility = getShadowColor(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); - else - visibility = vec4(1.0, 0.0, 0.0, 0.0); - shadow_int = visibility.r; - shadow_color = visibility.gba; + vec4 visibility; + if (cosLight > 0.0) + visibility = getShadowColor(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); + else + visibility = vec4(1.0, 0.0, 0.0, 0.0); + shadow_int = visibility.r; + shadow_color = visibility.gba; #else - if (cosLight > 0.0) - shadow_int = getShadow(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); - else - shadow_int = 1.0; + if (cosLight > 0.0) + shadow_int = getShadow(ShadowMapSampler, posLightSpace.xy, posLightSpace.z); + else + shadow_int = 1.0; #endif - shadow_int *= distance_rate; - shadow_int = clamp(shadow_int, 0.0, 1.0); + shadow_int *= distance_rate; + shadow_int = clamp(shadow_int, 0.0, 1.0); - } + } - // turns out that nightRatio falls off much faster than - // actual brightness of artificial light in relation to natual light. - // Power ratio was measured on torches in MTG (brightness = 14). - float adjusted_night_ratio = pow(max(0.0, nightRatio), 0.6); - - // cosine of the normal-to-light angle when - // we start to apply self-shadowing - const float self_shadow_cutoff_cosine = 0.14; - if (f_normal_length != 0 && cosLight < self_shadow_cutoff_cosine) { - shadow_int = max(shadow_int, 1 - clamp(cosLight, 0.0, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); - shadow_color = mix(vec3(0.0), shadow_color, min(cosLight, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); - } + // turns out that nightRatio falls off much faster than + // actual brightness of artificial light in relation to natual light. + // Power ratio was measured on torches in MTG (brightness = 14). + float adjusted_night_ratio = pow(max(0.0, nightRatio), 0.6); + + // cosine of the normal-to-light angle when + // we start to apply self-shadowing + const float self_shadow_cutoff_cosine = 0.14; + if (f_normal_length != 0 && cosLight < self_shadow_cutoff_cosine) { + shadow_int = max(shadow_int, 1 - clamp(cosLight, 0.0, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); + shadow_color = mix(vec3(0.0), shadow_color, min(cosLight, self_shadow_cutoff_cosine)/self_shadow_cutoff_cosine); + } - shadow_int *= f_adj_shadow_strength; - - // calculate fragment color from components: - col.rgb = - adjusted_night_ratio * col.rgb + // artificial light - (1.0 - adjusted_night_ratio) * ( // natural light - col.rgb * (1.0 - shadow_int * (1.0 - shadow_color)) + // filtered texture color - dayLight * shadow_color * shadow_int); // reflected filtered sunlight/moonlight + shadow_int *= f_adj_shadow_strength; + + // calculate fragment color from components: + col.rgb = + adjusted_night_ratio * col.rgb + // artificial light + (1.0 - adjusted_night_ratio) * ( // natural light + col.rgb * (1.0 - shadow_int * (1.0 - shadow_color)) + // filtered texture color + dayLight * shadow_color * shadow_int); // reflected filtered sunlight/moonlight + } #endif #if ENABLE_TONE_MAPPING diff --git a/client/shaders/object_shader/opengl_vertex.glsl b/client/shaders/object_shader/opengl_vertex.glsl index 185551c58..ff0067302 100644 --- a/client/shaders/object_shader/opengl_vertex.glsl +++ b/client/shaders/object_shader/opengl_vertex.glsl @@ -105,33 +105,35 @@ void main(void) #ifdef ENABLE_DYNAMIC_SHADOWS - vec3 nNormal = normalize(vNormal); - cosLight = dot(nNormal, -v_LightDirection); - - // Calculate normal offset scale based on the texel size adjusted for - // curvature of the SM texture. This code must be change together with - // getPerspectiveFactor or any light-space transformation. - vec3 eyeToVertex = worldPosition - eyePosition + cameraOffset; - // Distance from the vertex to the player - float distanceToPlayer = length(eyeToVertex - v_LightDirection * dot(eyeToVertex, v_LightDirection)) / f_shadowfar; - // perspective factor estimation according to the - float perspectiveFactor = distanceToPlayer * bias0 + bias1; - float texelSize = f_shadowfar * perspectiveFactor * perspectiveFactor / - (f_textureresolution * bias1 - perspectiveFactor * bias0); - float slopeScale = clamp(pow(1.0 - cosLight*cosLight, 0.5), 0.0, 1.0); - normalOffsetScale = texelSize * slopeScale; - - if (f_timeofday < 0.2) { - adj_shadow_strength = f_shadow_strength * 0.5 * - (1.0 - mtsmoothstep(0.18, 0.2, f_timeofday)); - } else if (f_timeofday >= 0.8) { - adj_shadow_strength = f_shadow_strength * 0.5 * - mtsmoothstep(0.8, 0.83, f_timeofday); - } else { - adj_shadow_strength = f_shadow_strength * - mtsmoothstep(0.20, 0.25, f_timeofday) * - (1.0 - mtsmoothstep(0.7, 0.8, f_timeofday)); + if (f_shadow_strength > 0.0) { + vec3 nNormal = normalize(vNormal); + cosLight = dot(nNormal, -v_LightDirection); + + // Calculate normal offset scale based on the texel size adjusted for + // curvature of the SM texture. This code must be change together with + // getPerspectiveFactor or any light-space transformation. + vec3 eyeToVertex = worldPosition - eyePosition + cameraOffset; + // Distance from the vertex to the player + float distanceToPlayer = length(eyeToVertex - v_LightDirection * dot(eyeToVertex, v_LightDirection)) / f_shadowfar; + // perspective factor estimation according to the + float perspectiveFactor = distanceToPlayer * bias0 + bias1; + float texelSize = f_shadowfar * perspectiveFactor * perspectiveFactor / + (f_textureresolution * bias1 - perspectiveFactor * bias0); + float slopeScale = clamp(pow(1.0 - cosLight*cosLight, 0.5), 0.0, 1.0); + normalOffsetScale = texelSize * slopeScale; + + if (f_timeofday < 0.2) { + adj_shadow_strength = f_shadow_strength * 0.5 * + (1.0 - mtsmoothstep(0.18, 0.2, f_timeofday)); + } else if (f_timeofday >= 0.8) { + adj_shadow_strength = f_shadow_strength * 0.5 * + mtsmoothstep(0.8, 0.83, f_timeofday); + } else { + adj_shadow_strength = f_shadow_strength * + mtsmoothstep(0.20, 0.25, f_timeofday) * + (1.0 - mtsmoothstep(0.7, 0.8, f_timeofday)); + } + f_normal_length = length(vNormal); } - f_normal_length = length(vNormal); #endif } diff --git a/doc/lua_api.txt b/doc/lua_api.txt index 52da17e9c..029c53616 100644 --- a/doc/lua_api.txt +++ b/doc/lua_api.txt @@ -7019,6 +7019,13 @@ object you are working with still exists. * Returns `false` if failed. * Resource intensive - use sparsely * To get blockpos, integer divide pos by 16 +* `set_lighting(light_definition)`: sets lighting for the player + * `light_definition` is a table with the following optional fields: + * `shadows` is a table that controls ambient shadows + * `intensity` sets the intensity of the shadows from 0 (no shadows, default) to 1 (blackness) + * Returns true on success. +* `get_lighting()`: returns the current state of lighting for the player. + * Result is a table with the same fields as `light_definition` in `set_lighting`. `PcgRandom` ----------- diff --git a/games/devtest/mods/experimental/init.lua b/games/devtest/mods/experimental/init.lua index b292f792e..70091179c 100644 --- a/games/devtest/mods/experimental/init.lua +++ b/games/devtest/mods/experimental/init.lua @@ -7,6 +7,7 @@ experimental = {} dofile(minetest.get_modpath("experimental").."/detached.lua") dofile(minetest.get_modpath("experimental").."/items.lua") dofile(minetest.get_modpath("experimental").."/commands.lua") +dofile(minetest.get_modpath("experimental").."/lighting.lua") function experimental.print_to_everything(msg) minetest.log("action", msg) diff --git a/games/devtest/mods/experimental/lighting.lua b/games/devtest/mods/experimental/lighting.lua new file mode 100644 index 000000000..2b350550f --- /dev/null +++ b/games/devtest/mods/experimental/lighting.lua @@ -0,0 +1,8 @@ +core.register_chatcommand("set_lighting", { + params = "shadow_intensity", + description = "Set lighting parameters.", + func = function(player_name, param) + local shadow_intensity = tonumber(param) + minetest.get_player_by_name(player_name):set_lighting({shadows = { intensity = shadow_intensity} }) + end +}) \ No newline at end of file diff --git a/src/client/client.h b/src/client/client.h index 84c85471d..0e29fdbe2 100644 --- a/src/client/client.h +++ b/src/client/client.h @@ -227,6 +227,7 @@ public: void handleCommand_PlayerSpeed(NetworkPacket *pkt); void handleCommand_MediaPush(NetworkPacket *pkt); void handleCommand_MinimapModes(NetworkPacket *pkt); + void handleCommand_SetLighting(NetworkPacket *pkt); void ProcessData(NetworkPacket *pkt); diff --git a/src/client/game.cpp b/src/client/game.cpp index 7450fb91c..edc69dcc2 100644 --- a/src/client/game.cpp +++ b/src/client/game.cpp @@ -4037,7 +4037,12 @@ void Game::updateShadows() float in_timeofday = fmod(runData.time_of_day_smooth, 1.0f); - float timeoftheday = fmod(getWickedTimeOfDay(in_timeofday) + 0.75f, 0.5f) + 0.25f; + float timeoftheday = getWickedTimeOfDay(in_timeofday); + bool is_day = timeoftheday > 0.25 && timeoftheday < 0.75; + bool is_shadow_visible = is_day ? sky->getSunVisible() : sky->getMoonVisible(); + shadow->setShadowIntensity(is_shadow_visible ? client->getEnv().getLocalPlayer()->getLighting().shadow_intensity : 0.0f); + + timeoftheday = fmod(timeoftheday + 0.75f, 0.5f) + 0.25f; const float offset_constant = 10000.0f; v3f light(0.0f, 0.0f, -1.0f); diff --git a/src/client/localplayer.h b/src/client/localplayer.h index 577be2803..3d0072fc1 100644 --- a/src/client/localplayer.h +++ b/src/client/localplayer.h @@ -23,6 +23,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "environment.h" #include "constants.h" #include "settings.h" +#include "lighting.h" #include class Client; @@ -158,6 +159,8 @@ public: added_velocity += vel; } + inline Lighting& getLighting() { return m_lighting; } + private: void accelerate(const v3f &target_speed, const f32 max_increase_H, const f32 max_increase_V, const bool use_pitch); @@ -209,4 +212,5 @@ private: GenericCAO *m_cao = nullptr; Client *m_client; + Lighting m_lighting; }; diff --git a/src/client/shadows/dynamicshadowsrender.cpp b/src/client/shadows/dynamicshadowsrender.cpp index 528415aaf..24adb21e2 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 +#include #include "client/shadows/dynamicshadowsrender.h" #include "client/shadows/shadowsScreenQuad.h" #include "client/shadows/shadowsshadercallbacks.h" @@ -33,9 +34,13 @@ 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_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"); @@ -49,6 +54,9 @@ 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_mix_cb) @@ -72,15 +80,25 @@ ShadowRenderer::~ShadowRenderer() m_driver->removeTexture(shadowMapClientMapFuture); } +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, true, true); + } +} + 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 +112,8 @@ 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; } @@ -124,6 +144,16 @@ f32 ShadowRenderer::getMaxShadowFar() const 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) { @@ -153,6 +183,7 @@ void ShadowRenderer::updateSMTextures() shadowMapTextureDynamicObjects = getSMTexture( std::string("shadow_dynamic_") + itos(m_shadow_map_texture_size), m_texture_format, true); + assert(shadowMapTextureDynamicObjects != nullptr); } if (!shadowMapClientMap) { @@ -161,6 +192,7 @@ 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) { @@ -168,6 +200,7 @@ 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) { @@ -175,6 +208,7 @@ 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 @@ -194,6 +228,7 @@ void ShadowRenderer::updateSMTextures() shadowMapTextureFinal = getSMTexture( std::string("shadowmap_final_") + itos(m_shadow_map_texture_size), frt, true); + assert(shadowMapTextureFinal != nullptr); } if (!m_shadow_node_array.empty() && !m_light_list.empty()) { @@ -270,6 +305,10 @@ 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) { @@ -307,19 +346,23 @@ 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(0, 50, 128, 128 + 50), - core::rect({0, 0}, shadowMapTextureFinal->getSize())); + if (shadowMapTextureFinal) + m_driver->draw2DImage(shadowMapTextureFinal, + core::rect(0, 50, 128, 128 + 50), + core::rect({0, 0}, shadowMapTextureFinal->getSize())); - m_driver->draw2DImage(shadowMapClientMap, - core::rect(0, 50 + 128, 128, 128 + 50 + 128), - core::rect({0, 0}, shadowMapTextureFinal->getSize())); - m_driver->draw2DImage(shadowMapTextureDynamicObjects, - core::rect(0, 128 + 50 + 128, 128, - 128 + 50 + 128 + 128), - core::rect({0, 0}, shadowMapTextureDynamicObjects->getSize())); + if (shadowMapClientMap) + m_driver->draw2DImage(shadowMapClientMap, + core::rect(0, 50 + 128, 128, 128 + 50 + 128), + core::rect({0, 0}, shadowMapTextureFinal->getSize())); + + if (shadowMapTextureDynamicObjects) + m_driver->draw2DImage(shadowMapTextureDynamicObjects, + core::rect(0, 128 + 50 + 128, 128, + 128 + 50 + 128 + 128), + core::rect({0, 0}, shadowMapTextureDynamicObjects->getSize())); - if (m_shadow_map_colored) { + if (m_shadow_map_colored && shadowMapTextureColors) { m_driver->draw2DImage(shadowMapTextureColors, core::rect(128,128 + 50 + 128 + 128, @@ -469,13 +512,13 @@ 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; } @@ -490,7 +533,7 @@ void ShadowRenderer::createShaders() if (depth_shader == -1) { // upsi, something went wrong loading shader. delete m_shadow_depth_cb; - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error compiling shadow mapping shader." << std::endl; return; } @@ -506,13 +549,13 @@ 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; } @@ -525,7 +568,7 @@ void ShadowRenderer::createShaders() if (depth_shader_entities == -1) { // upsi, something went wrong loading shader. - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error compiling shadow mapping shader (dynamic)." << std::endl; return; } @@ -539,14 +582,14 @@ 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; } @@ -565,7 +608,7 @@ 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; } @@ -579,13 +622,13 @@ 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; } @@ -601,7 +644,7 @@ void ShadowRenderer::createShaders() // upsi, something went wrong loading shader. delete m_shadow_depth_trans_cb; m_shadow_map_colored = false; - m_shadows_enabled = false; + m_shadows_supported = false; errorstream << "Error compiling colored shadow mapping shader." << std::endl; return; } diff --git a/src/client/shadows/dynamicshadowsrender.h b/src/client/shadows/dynamicshadowsrender.h index e4b3c3e22..dc8f79c56 100644 --- a/src/client/shadows/dynamicshadowsrender.h +++ b/src/client/shadows/dynamicshadowsrender.h @@ -82,11 +82,12 @@ public: } - bool is_active() const { return m_shadows_enabled; } + bool is_active() const { return m_shadows_enabled && shadowMapTextureFinal != nullptr; } void setTimeOfDay(float isDay) { m_time_day = isDay; }; + void setShadowIntensity(float shadow_intensity); s32 getShadowSamples() const { return m_shadow_samples; } - float getShadowStrength() const { return m_shadow_strength; } + float getShadowStrength() const { return m_shadows_enabled ? m_shadow_strength : 0.0f; } float getTimeOfDay() const { return m_time_day; } private: @@ -101,6 +102,9 @@ private: void mixShadowsQuad(); void updateSMTextures(); + void disable(); + void enable() { m_shadows_enabled = m_shadows_supported; } + // a bunch of variables IrrlichtDevice *m_device{nullptr}; scene::ISceneManager *m_smgr{nullptr}; @@ -116,12 +120,14 @@ private: std::vector m_shadow_node_array; float m_shadow_strength; + float m_shadow_strength_gamma; float m_shadow_map_max_distance; float m_shadow_map_texture_size; float m_time_day{0.0f}; int m_shadow_samples; bool m_shadow_map_texture_32bit; bool m_shadows_enabled; + bool m_shadows_supported; bool m_shadow_map_colored; u8 m_map_shadow_update_frames; /* Use this number of frames to update map shaodw */ u8 m_current_frame{0}; /* Current frame */ diff --git a/src/client/sky.h b/src/client/sky.h index 3dc057b70..e03683f12 100644 --- a/src/client/sky.h +++ b/src/client/sky.h @@ -65,6 +65,7 @@ public: } void setSunVisible(bool sun_visible) { m_sun_params.visible = sun_visible; } + bool getSunVisible() const { return m_sun_params.visible; } void setSunTexture(const std::string &sun_texture, const std::string &sun_tonemap, ITextureSource *tsrc); void setSunScale(f32 sun_scale) { m_sun_params.scale = sun_scale; } @@ -72,6 +73,7 @@ public: void setSunriseTexture(const std::string &sunglow_texture, ITextureSource* tsrc); void setMoonVisible(bool moon_visible) { m_moon_params.visible = moon_visible; } + bool getMoonVisible() const { return m_moon_params.visible; } void setMoonTexture(const std::string &moon_texture, const std::string &moon_tonemap, ITextureSource *tsrc); void setMoonScale(f32 moon_scale) { m_moon_params.scale = moon_scale; } diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp index b935c0e21..2e9a19199 100644 --- a/src/defaultsettings.cpp +++ b/src/defaultsettings.cpp @@ -266,7 +266,7 @@ void set_default_settings() // Effects Shadows settings->setDefault("enable_dynamic_shadows", "false"); - settings->setDefault("shadow_strength", "0.2"); + settings->setDefault("shadow_strength_gamma", "1.0"); settings->setDefault("shadow_map_max_distance", "200.0"); settings->setDefault("shadow_map_texture_size", "2048"); settings->setDefault("shadow_map_texture_32bit", "true"); diff --git a/src/lighting.h b/src/lighting.h new file mode 100644 index 000000000..e0d9cee09 --- /dev/null +++ b/src/lighting.h @@ -0,0 +1,27 @@ +/* +Minetest +Copyright (C) 2021 x2048, Dmitry Kostenko + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#pragma once + +/** Describes ambient light settings for a player + */ +struct Lighting +{ + float shadow_intensity {0.0f}; +}; diff --git a/src/network/clientopcodes.cpp b/src/network/clientopcodes.cpp index a98a5e7d1..6a78b4652 100644 --- a/src/network/clientopcodes.cpp +++ b/src/network/clientopcodes.cpp @@ -123,6 +123,7 @@ const ToClientCommandHandler toClientCommandTable[TOCLIENT_NUM_MSG_TYPES] = { "TOCLIENT_SRP_BYTES_S_B", TOCLIENT_STATE_NOT_CONNECTED, &Client::handleCommand_SrpBytesSandB }, // 0x60 { "TOCLIENT_FORMSPEC_PREPEND", TOCLIENT_STATE_CONNECTED, &Client::handleCommand_FormspecPrepend }, // 0x61, { "TOCLIENT_MINIMAP_MODES", TOCLIENT_STATE_CONNECTED, &Client::handleCommand_MinimapModes }, // 0x62, + { "TOCLIENT_SET_LIGHTING", TOCLIENT_STATE_CONNECTED, &Client::handleCommand_SetLighting }, // 0x63, }; const static ServerCommandFactory null_command_factory = { "TOSERVER_NULL", 0, false }; diff --git a/src/network/clientpackethandler.cpp b/src/network/clientpackethandler.cpp index 48ad60ac6..15b576640 100644 --- a/src/network/clientpackethandler.cpp +++ b/src/network/clientpackethandler.cpp @@ -1682,3 +1682,11 @@ void Client::handleCommand_MinimapModes(NetworkPacket *pkt) if (m_minimap) m_minimap->setModeIndex(mode); } + +void Client::handleCommand_SetLighting(NetworkPacket *pkt) +{ + Lighting& lighting = m_env.getLocalPlayer()->getLighting(); + + if (pkt->getRemainingBytes() >= 4) + *pkt >> lighting.shadow_intensity; +} diff --git a/src/network/networkprotocol.h b/src/network/networkprotocol.h index a5ff53216..f98a829ba 100644 --- a/src/network/networkprotocol.h +++ b/src/network/networkprotocol.h @@ -762,7 +762,12 @@ enum ToClientCommand std::string extra */ - TOCLIENT_NUM_MSG_TYPES = 0x63, + TOCLIENT_SET_LIGHTING = 0x63, + /* + f32 shadow_intensity + */ + + TOCLIENT_NUM_MSG_TYPES = 0x64, }; enum ToServerCommand diff --git a/src/remoteplayer.h b/src/remoteplayer.h index e33630841..0ab33adfe 100644 --- a/src/remoteplayer.h +++ b/src/remoteplayer.h @@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "player.h" #include "skyparams.h" +#include "lighting.h" class PlayerSAO; @@ -125,6 +126,10 @@ public: *frame_speed = local_animation_speed; } + void setLighting(const Lighting &lighting) { m_lighting = lighting; } + + const Lighting& getLighting() const { return m_lighting; } + void setDirty(bool dirty) { m_dirty = true; } u16 protocol_version = 0; @@ -160,5 +165,7 @@ private: MoonParams m_moon_params; StarParams m_star_params; + Lighting m_lighting; + session_t m_peer_id = PEER_ID_INEXISTENT; }; diff --git a/src/script/lua_api/l_object.cpp b/src/script/lua_api/l_object.cpp index 1ed6b0d5c..6153a0399 100644 --- a/src/script/lua_api/l_object.cpp +++ b/src/script/lua_api/l_object.cpp @@ -2295,6 +2295,47 @@ int ObjectRef::l_set_minimap_modes(lua_State *L) return 0; } +// set_lighting(self, lighting) +int ObjectRef::l_set_lighting(lua_State *L) +{ + NO_MAP_LOCK_REQUIRED; + ObjectRef *ref = checkobject(L, 1); + RemotePlayer *player = getplayer(ref); + if (player == nullptr) + return 0; + + luaL_checktype(L, 2, LUA_TTABLE); + Lighting lighting = player->getLighting(); + lua_getfield(L, 2, "shadows"); + if (lua_istable(L, -1)) { + lighting.shadow_intensity = getfloatfield_default(L, -1, "intensity", lighting.shadow_intensity); + } + lua_pop(L, -1); + + getServer(L)->setLighting(player, lighting); + lua_pushboolean(L, true); + return 1; +} + +// get_lighting(self) +int ObjectRef::l_get_lighting(lua_State *L) +{ + NO_MAP_LOCK_REQUIRED; + ObjectRef *ref = checkobject(L, 1); + RemotePlayer *player = getplayer(ref); + if (player == nullptr) + return 0; + + const Lighting &lighting = player->getLighting(); + + lua_newtable(L); // result + lua_newtable(L); // "shadows" + lua_pushnumber(L, lighting.shadow_intensity); + lua_setfield(L, -2, "intensity"); + lua_setfield(L, -2, "shadows"); + return 1; +} + ObjectRef::ObjectRef(ServerActiveObject *object): m_object(object) {} @@ -2448,5 +2489,7 @@ luaL_Reg ObjectRef::methods[] = { luamethod(ObjectRef, get_eye_offset), luamethod(ObjectRef, send_mapblock), luamethod(ObjectRef, set_minimap_modes), + luamethod(ObjectRef, set_lighting), + luamethod(ObjectRef, get_lighting), {0,0} }; diff --git a/src/script/lua_api/l_object.h b/src/script/lua_api/l_object.h index 084d40c05..3e4e6681a 100644 --- a/src/script/lua_api/l_object.h +++ b/src/script/lua_api/l_object.h @@ -376,4 +376,10 @@ private: // set_minimap_modes(self, modes, wanted_mode) static int l_set_minimap_modes(lua_State *L); + + // set_lighting(self, lighting) + static int l_set_lighting(lua_State *L); + + // get_lighting(self) + static int l_get_lighting(lua_State *L); }; diff --git a/src/server.cpp b/src/server.cpp index d9205c895..4bc049e32 100644 --- a/src/server.cpp +++ b/src/server.cpp @@ -1795,6 +1795,16 @@ void Server::SendOverrideDayNightRatio(session_t peer_id, bool do_override, Send(&pkt); } +void Server::SendSetLighting(session_t peer_id, const Lighting &lighting) +{ + NetworkPacket pkt(TOCLIENT_SET_LIGHTING, + 4, peer_id); + + pkt << lighting.shadow_intensity; + + Send(&pkt); +} + void Server::SendTimeOfDay(session_t peer_id, u16 time, f32 time_speed) { NetworkPacket pkt(TOCLIENT_TIME_OF_DAY, 0, peer_id); @@ -3386,6 +3396,13 @@ void Server::overrideDayNightRatio(RemotePlayer *player, bool do_override, SendOverrideDayNightRatio(player->getPeerId(), do_override, ratio); } +void Server::setLighting(RemotePlayer *player, const Lighting &lighting) +{ + sanity_check(player); + player->setLighting(lighting); + SendSetLighting(player->getPeerId(), lighting); +} + void Server::notifyPlayers(const std::wstring &msg) { SendChatMessage(PEER_ID_INEXISTENT, ChatMessage(msg)); diff --git a/src/server.h b/src/server.h index 2741b3157..c05393291 100644 --- a/src/server.h +++ b/src/server.h @@ -69,6 +69,7 @@ struct SkyboxParams; struct SunParams; struct MoonParams; struct StarParams; +struct Lighting; class ServerThread; class ServerModManager; class ServerInventoryManager; @@ -333,6 +334,8 @@ public: void overrideDayNightRatio(RemotePlayer *player, bool do_override, float brightness); + void setLighting(RemotePlayer *player, const Lighting &lighting); + /* con::PeerHandler implementation. */ void peerAdded(con::Peer *peer); void deletingPeer(con::Peer *peer, bool timeout); @@ -459,6 +462,7 @@ private: void SendSetStars(session_t peer_id, const StarParams ¶ms); void SendCloudParams(session_t peer_id, const CloudParams ¶ms); void SendOverrideDayNightRatio(session_t peer_id, bool do_override, float ratio); + void SendSetLighting(session_t peer_id, const Lighting &lighting); void broadcastModChannelMessage(const std::string &channel, const std::string &message, session_t from_peer); -- cgit v1.2.3