Upscaling support

CHANGELOG.md

@@ -35,6 +35,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Saving of the last selected character in the character selection screen
 - Autoselecting the newly created character
 - Deselecting when the selected character is deleted
+- Upscaling support
 
 ### Changed
 

assets/voxygen/i18n/en.ron

@@ -337,6 +337,7 @@ magically infused items?"#,
         "hud.settings.gamma": "Gamma",
         "hud.settings.ambiance": "Ambiance Brightness",
         "hud.settings.antialiasing_mode": "AntiAliasing Mode",
+        "hud.settings.upscale_factor": "Upscale Factor",
         "hud.settings.cloud_rendering_mode": "Cloud Rendering Mode",
         "hud.settings.fluid_rendering_mode": "Fluid Rendering Mode",
         "hud.settings.fluid_rendering_mode.cheap": "Cheap",

assets/voxygen/shaders/clouds-frag.glsl

@@ -0,0 +1,74 @@
+#version 330 core
+
+#include <constants.glsl>
+
+#define LIGHTING_TYPE (LIGHTING_TYPE_TRANSMISSION | LIGHTING_TYPE_REFLECTION)
+
+#define LIGHTING_REFLECTION_KIND LIGHTING_REFLECTION_KIND_SPECULAR
+
+#if (FLUID_MODE == FLUID_MODE_CHEAP)
+#define LIGHTING_TRANSPORT_MODE LIGHTING_TRANSPORT_MODE_IMPORTANCE
+#elif (FLUID_MODE == FLUID_MODE_SHINY)
+#define LIGHTING_TRANSPORT_MODE LIGHTING_TRANSPORT_MODE_RADIANCE
+#endif
+
+#define LIGHTING_DISTRIBUTION_SCHEME LIGHTING_DISTRIBUTION_SCHEME_MICROFACET
+
+#define LIGHTING_DISTRIBUTION LIGHTING_DISTRIBUTION_BECKMANN
+
+#include <globals.glsl>
+// Note: The sampler uniform is declared here because it differs for MSAA
+#include <anti-aliasing.glsl>
+#include <srgb.glsl>
+#include <cloud.glsl>
+
+uniform sampler2D src_depth;
+
+in vec2 f_pos;
+
+layout (std140)
+uniform u_locals {
+    mat4 proj_mat_inv;
+    mat4 view_mat_inv;
+};
+
+out vec4 tgt_color;
+
+float depth_at(vec2 uv) {
+    float buf_depth = texture(src_depth, uv).x;
+    vec4 clip_space = vec4(uv * 2.0 - 1.0, buf_depth, 1.0);
+    vec4 view_space = proj_mat_inv * clip_space;
+    view_space /= view_space.w;
+    return -view_space.z;
+}
+
+vec3 wpos_at(vec2 uv) {
+    float buf_depth = texture(src_depth, uv).x * 2.0 - 1.0;
+    mat4 inv = view_mat_inv * proj_mat_inv;//inverse(all_mat);
+    vec4 clip_space = vec4(uv * 2.0 - 1.0, buf_depth, 1.0);
+    vec4 view_space = inv * clip_space;
+    view_space /= view_space.w;
+    if (buf_depth == 1.0) {
+        vec3 direction = normalize(view_space.xyz);
+        return direction.xyz * 100000.0 + cam_pos.xyz;
+    } else {
+        return view_space.xyz;
+    }
+}
+
+void main() {
+    vec2 uv = (f_pos + 1.0) * 0.5;
+
+    vec4 color = texture(src_color, uv);
+
+    // Apply clouds to `aa_color`
+    #if (CLOUD_MODE != CLOUD_MODE_NONE)
+        vec3 wpos = wpos_at(uv);
+        float dist = distance(wpos, cam_pos.xyz);
+        vec3 dir = (wpos - cam_pos.xyz) / dist;
+
+        color.rgb = get_cloud_color(color.rgb, dir, cam_pos.xyz, time_of_day.x, dist, 1.0);
+    #endif
+
+    tgt_color = vec4(color.rgb, 1);
+}

assets/voxygen/shaders/clouds-vert.glsl

@@ -0,0 +1,29 @@
+#version 330 core
+
+#include <constants.glsl>
+
+#define LIGHTING_TYPE (LIGHTING_TYPE_TRANSMISSION | LIGHTING_TYPE_REFLECTION)
+
+#define LIGHTING_REFLECTION_KIND LIGHTING_REFLECTION_KIND_SPECULAR
+
+#if (FLUID_MODE == FLUID_MODE_CHEAP)
+#define LIGHTING_TRANSPORT_MODE LIGHTING_TRANSPORT_MODE_IMPORTANCE
+#elif (FLUID_MODE == FLUID_MODE_SHINY)
+#define LIGHTING_TRANSPORT_MODE LIGHTING_TRANSPORT_MODE_RADIANCE
+#endif
+
+#define LIGHTING_DISTRIBUTION_SCHEME LIGHTING_DISTRIBUTION_SCHEME_MICROFACET
+
+#define LIGHTING_DISTRIBUTION LIGHTING_DISTRIBUTION_BECKMANN
+
+#include <globals.glsl>
+
+in vec2 v_pos;
+
+out vec2 f_pos;
+
+void main() {
+    f_pos = v_pos;
+
+    gl_Position = vec4(v_pos, -1.0, 1.0);
+}

assets/voxygen/shaders/postprocess-frag.glsl

@@ -22,7 +22,7 @@
 #include <srgb.glsl>
 #include <cloud.glsl>
 
-uniform sampler2D src_depth;
+//uniform sampler2D src_depth;
 
 in vec2 f_pos;
 
@@ -145,6 +145,7 @@ vec3 _illuminate(float max_light, vec3 view_dir, /*vec3 max_light, */vec3 emitte
     // return /*srgb_to_linear*/(/*0.5*//*0.125 * */vec3(pow(color.x, gamma), pow(color.y, gamma), pow(color.z, gamma)));
 }
 
+/*
 float depth_at(vec2 uv) {
     float buf_depth = texture(src_depth, uv).x;
     vec4 clip_space = vec4(uv * 2.0 - 1.0, buf_depth, 1.0);
@@ -166,6 +167,7 @@ vec3 wpos_at(vec2 uv) {
         return view_space.xyz;
     }
 }
+*/
 
 void main() {
     vec2 uv = (f_pos + 1.0) * 0.5;
@@ -202,6 +204,7 @@ void main() {
 
     vec4 aa_color = aa_apply(src_color, uv * screen_res.xy, screen_res.xy);
 
+    /*
     // Apply clouds to `aa_color`
     #if (CLOUD_MODE != CLOUD_MODE_NONE)
         vec3 wpos = wpos_at(uv);
@@ -210,6 +213,7 @@ void main() {
 
         aa_color.rgb = get_cloud_color(aa_color.rgb, dir, cam_pos.xyz, time_of_day.x, dist, 1.0);
     #endif
+    */
 
     // aa_color.rgb = (wpos + focus_off.xyz) / vec3(32768, 32768, /*view_distance.w*/2048);
     // aa_color.rgb = mod((wpos + focus_off.xyz), vec3(32768, 32768, view_distance.w)) / vec3(32768, 32768, view_distance.w);// / vec3(32768, 32768, view_distance.w);

voxygen/src/hud/settings_window.rs

@@ -6,7 +6,10 @@ use super::{
 use crate::{
     hud::BuffPosition,
     i18n::{list_localizations, LanguageMetadata, Localization},
-    render::{AaMode, CloudMode, FluidMode, LightingMode, RenderMode, ShadowMapMode, ShadowMode},
+    render::{
+        AaMode, CloudMode, FluidMode, LightingMode, RenderMode, ShadowMapMode, ShadowMode,
+        UpscaleMode,
+    },
     ui::{fonts::Fonts, ImageSlider, ScaleMode, ToggleButton},
     window::{FullScreenSettings, FullscreenMode, GameInput},
     GlobalState,
@@ -126,6 +129,8 @@ widget_ids! {
         ambiance_value,
         aa_mode_text,
         aa_mode_list,
+        upscale_factor_text,
+        upscale_factor_list,
         cloud_mode_text,
         cloud_mode_list,
         fluid_mode_text,
@@ -2060,13 +2065,55 @@ impl<'a> Widget for SettingsWindow<'a> {
                 })));
             }
 
+            // Upscaling factor
+            Text::new(&self.localized_strings.get("hud.settings.upscale_factor"))
+                .down_from(state.ids.aa_mode_list, 8.0)
+                .font_size(self.fonts.cyri.scale(14))
+                .font_id(self.fonts.cyri.conrod_id)
+                .color(TEXT_COLOR)
+                .set(state.ids.upscale_factor_text, ui);
+
+            let upscale_factors = [
+                // Upscaling
+                0.15, 0.2, 0.25, 0.35, 0.5, 0.65, 0.75, 0.85, 1.0,
+                // Downscaling (equivalent to SSAA)
+                1.25, 1.5, 1.75, 2.0,
+            ];
+
+            // Get which upscale factor is currently active
+            let selected = upscale_factors
+                .iter()
+                .position(|factor| (*factor - render_mode.upscale_mode.factor).abs() < 0.001);
+
+            if let Some(clicked) = DropDownList::new(
+                &upscale_factors
+                    .iter()
+                    .map(|factor| format!("{n:.*}", 2, n = factor))
+                    .collect::<Vec<String>>(),
+                selected,
+            )
+            .w_h(400.0, 22.0)
+            .color(MENU_BG)
+            .label_color(TEXT_COLOR)
+            .label_font_id(self.fonts.cyri.conrod_id)
+            .down_from(state.ids.upscale_factor_text, 8.0)
+            .set(state.ids.upscale_factor_list, ui)
+            {
+                events.push(Event::ChangeRenderMode(Box::new(RenderMode {
+                    upscale_mode: UpscaleMode {
+                        factor: upscale_factors[clicked],
+                    },
+                    ..render_mode.clone()
+                })));
+            }
+
             // CloudMode
             Text::new(
                 &self
                     .localized_strings
                     .get("hud.settings.cloud_rendering_mode"),
             )
-            .down_from(state.ids.aa_mode_list, 8.0)
+            .down_from(state.ids.upscale_factor_list, 8.0)
             .font_size(self.fonts.cyri.scale(14))
             .font_id(self.fonts.cyri.conrod_id)
             .color(TEXT_COLOR)

voxygen/src/render/mod.rs

@@ -16,6 +16,7 @@ pub use self::{
     mesh::{Mesh, Quad, Tri},
     model::{DynamicModel, Model},
     pipelines::{
+        clouds::{create_mesh as create_clouds_mesh, CloudsPipeline, Locals as CloudsLocals},
         figure::{
             BoneData as FigureBoneData, BoneMeshes, FigureModel, FigurePipeline,
             Locals as FigureLocals,
@@ -257,6 +258,17 @@ impl ShadowMode {
     pub fn is_map(&self) -> bool { matches!(self, Self::Map(_)) }
 }
 
+/// Upscale mode settings.
+#[derive(PartialEq, Clone, Copy, Debug, Serialize, Deserialize)]
+pub struct UpscaleMode {
+    // Determines non-UI graphics upscaling. 0.25 to 2.0.
+    pub factor: f32,
+}
+
+impl Default for UpscaleMode {
+    fn default() -> Self { Self { factor: 1.0 } }
+}
+
 /// Render modes
 #[derive(PartialEq, Clone, Debug, Default, Serialize, Deserialize)]
 #[serde(default)]
@@ -266,4 +278,5 @@ pub struct RenderMode {
     pub fluid: FluidMode,
     pub lighting: LightingMode,
     pub shadow: ShadowMode,
+    pub upscale_mode: UpscaleMode,
 }

voxygen/src/render/pipelines/clouds.rs

@@ -0,0 +1,77 @@
+use super::{
+    super::{Mesh, Pipeline, TgtColorFmt, TgtDepthStencilFmt, Tri},
+    Globals,
+};
+use gfx::{
+    self, gfx_constant_struct_meta, gfx_defines, gfx_impl_struct_meta, gfx_pipeline,
+    gfx_pipeline_inner, gfx_vertex_struct_meta,
+};
+use vek::*;
+
+gfx_defines! {
+    vertex Vertex {
+        pos: [f32; 2] = "v_pos",
+    }
+
+    constant Locals {
+        proj_mat_inv: [[f32; 4]; 4] = "proj_mat_inv",
+        view_mat_inv: [[f32; 4]; 4] = "view_mat_inv",
+    }
+
+    pipeline pipe {
+        vbuf: gfx::VertexBuffer<Vertex> = (),
+
+        locals: gfx::ConstantBuffer<Locals> = "u_locals",
+        globals: gfx::ConstantBuffer<Globals> = "u_globals",
+
+        map: gfx::TextureSampler<[f32; 4]> = "t_map",
+        alt: gfx::TextureSampler<[f32; 2]> = "t_alt",
+        horizon: gfx::TextureSampler<[f32; 4]> = "t_horizon",
+
+        color_sampler: gfx::TextureSampler<<TgtColorFmt as gfx::format::Formatted>::View> = "src_color",
+        depth_sampler: gfx::TextureSampler<<TgtDepthStencilFmt as gfx::format::Formatted>::View> = "src_depth",
+
+        noise: gfx::TextureSampler<f32> = "t_noise",
+
+        tgt_color: gfx::RenderTarget<TgtColorFmt> = "tgt_color",
+    }
+}
+
+impl Default for Locals {
+    fn default() -> Self { Self::new(Mat4::identity(), Mat4::identity()) }
+}
+
+impl Locals {
+    pub fn new(proj_mat_inv: Mat4<f32>, view_mat_inv: Mat4<f32>) -> Self {
+        Self {
+            proj_mat_inv: proj_mat_inv.into_col_arrays(),
+            view_mat_inv: view_mat_inv.into_col_arrays(),
+        }
+    }
+}
+
+pub struct CloudsPipeline;
+
+impl Pipeline for CloudsPipeline {
+    type Vertex = Vertex;
+}
+
+pub fn create_mesh() -> Mesh<CloudsPipeline> {
+    let mut mesh = Mesh::new();
+
+    #[rustfmt::skip]
+    mesh.push_tri(Tri::new(
+        Vertex { pos: [ 1.0, -1.0] },
+        Vertex { pos: [-1.0,  1.0] },
+        Vertex { pos: [-1.0, -1.0] },
+    ));
+
+    #[rustfmt::skip]
+    mesh.push_tri(Tri::new(
+        Vertex { pos: [1.0, -1.0] },
+        Vertex { pos: [1.0,  1.0] },
+        Vertex { pos: [-1.0, 1.0] },
+    ));
+
+    mesh
+}

voxygen/src/render/pipelines/mod.rs

@@ -1,3 +1,4 @@
+pub mod clouds;
 pub mod figure;
 pub mod fluid;
 pub mod lod_terrain;

voxygen/src/render/renderer.rs

@@ -5,8 +5,8 @@ use super::{
     mesh::Mesh,
     model::{DynamicModel, Model},
     pipelines::{
-        figure, fluid, lod_terrain, particle, postprocess, shadow, skybox, sprite, terrain, ui,
-        GlobalModel, Globals,
+        clouds, figure, fluid, lod_terrain, particle, postprocess, shadow, skybox, sprite, terrain,
+        ui, GlobalModel, Globals,
     },
     texture::Texture,
     AaMode, CloudMode, FilterMethod, FluidMode, LightingMode, Pipeline, RenderError, RenderMode,
@@ -148,9 +148,11 @@ pub struct Renderer {
 
     tgt_color_view: TgtColorView,
     tgt_depth_stencil_view: TgtDepthStencilView,
+    tgt_color_view_pp: TgtColorView,
 
     tgt_color_res: TgtColorRes,
     tgt_depth_res: TgtDepthRes,
+    tgt_color_res_pp: TgtColorRes,
 
     sampler: Sampler<gfx_backend::Resources>,
 
@@ -164,6 +166,7 @@ pub struct Renderer {
     particle_pipeline: GfxPipeline<particle::pipe::Init<'static>>,
     ui_pipeline: GfxPipeline<ui::pipe::Init<'static>>,
     lod_terrain_pipeline: GfxPipeline<lod_terrain::pipe::Init<'static>>,
+    clouds_pipeline: GfxPipeline<clouds::pipe::Init<'static>>,
     postprocess_pipeline: GfxPipeline<postprocess::pipe::Init<'static>>,
     player_shadow_pipeline: GfxPipeline<figure::pipe::Init<'static>>,
 
@@ -213,6 +216,7 @@ impl Renderer {
             particle_pipeline,
             ui_pipeline,
             lod_terrain_pipeline,
+            clouds_pipeline,
             postprocess_pipeline,
             player_shadow_pipeline,
             point_shadow_pipeline,
@@ -225,8 +229,14 @@ impl Renderer {
             &mut shader_reload_indicator,
         )?;
 
-        let (tgt_color_view, tgt_depth_stencil_view, tgt_color_res, tgt_depth_res) =
-            Self::create_rt_views(&mut factory, (dims.0, dims.1), &mode)?;
+        let (
+            tgt_color_view,
+            tgt_depth_stencil_view,
+            tgt_color_view_pp,
+            tgt_color_res,
+            tgt_depth_res,
+            tgt_color_res_pp,
+        ) = Self::create_rt_views(&mut factory, (dims.0, dims.1), &mode)?;
 
         let shadow_map = if let (
             Some(point_pipeline),
@@ -266,7 +276,10 @@ impl Renderer {
             None
         };
 
-        let sampler = factory.create_sampler_linear();
+        let sampler = factory.create_sampler(gfx::texture::SamplerInfo::new(
+            gfx::texture::FilterMethod::Bilinear,
+            gfx::texture::WrapMode::Clamp,
+        ));
 
         let noise_tex = Texture::new(
             &mut factory,
@@ -286,9 +299,11 @@ impl Renderer {
 
             tgt_color_view,
             tgt_depth_stencil_view,
+            tgt_color_view_pp,
 
             tgt_color_res,
             tgt_depth_res,
+            tgt_color_res_pp,
 
             sampler,
 
@@ -302,6 +317,7 @@ impl Renderer {
             particle_pipeline,
             ui_pipeline,
             lod_terrain_pipeline,
+            clouds_pipeline,
             postprocess_pipeline,
             player_shadow_pipeline,
 
@@ -363,12 +379,20 @@ impl Renderer {
 
         // Avoid panics when creating texture with w,h of 0,0.
         if dims.0 != 0 && dims.1 != 0 {
-            let (tgt_color_view, tgt_depth_stencil_view, tgt_color_res, tgt_depth_res) =
-                Self::create_rt_views(&mut self.factory, (dims.0, dims.1), &self.mode)?;
+            let (
+                tgt_color_view,
+                tgt_depth_stencil_view,
+                tgt_color_view_pp,
+                tgt_color_res,
+                tgt_depth_res,
+                tgt_color_res_pp,
+            ) = Self::create_rt_views(&mut self.factory, (dims.0, dims.1), &self.mode)?;
             self.tgt_color_res = tgt_color_res;
             self.tgt_depth_res = tgt_depth_res;
+            self.tgt_color_res_pp = tgt_color_res_pp;
             self.tgt_color_view = tgt_color_view;
             self.tgt_depth_stencil_view = tgt_depth_stencil_view;
+            self.tgt_color_view_pp = tgt_color_view_pp;
             if let (Some(shadow_map), ShadowMode::Map(mode)) =
                 (self.shadow_map.as_mut(), self.mode.shadow)
             {
@@ -403,42 +427,66 @@ impl Renderer {
         factory: &mut gfx_device_gl::Factory,
         size: (u16, u16),
         mode: &RenderMode,
-    ) -> Result<(TgtColorView, TgtDepthStencilView, TgtColorRes, TgtDepthRes), RenderError> {
+    ) -> Result<
+        (
+            TgtColorView,
+            TgtDepthStencilView,
+            TgtColorView,
+            TgtColorRes,
+            TgtDepthRes,
+            TgtColorRes,
+        ),
+        RenderError,
+    > {
+        let upscaled = Vec2::from(size)
+            .map(|e: u16| (e as f32 * mode.upscale_mode.factor) as u16)
+            .into_tuple();
         let kind = match mode.aa {
             AaMode::None | AaMode::Fxaa => {
-                gfx::texture::Kind::D2(size.0, size.1, gfx::texture::AaMode::Single)
+                gfx::texture::Kind::D2(upscaled.0, upscaled.1, gfx::texture::AaMode::Single)
             },
             // TODO: Ensure sampling in the shader is exactly between the 4 texels
             AaMode::SsaaX4 => {
+                // TODO: Figure out how to do upscaling correctly with SSAA
                 gfx::texture::Kind::D2(size.0 * 2, size.1 * 2, gfx::texture::AaMode::Single)
             },
             AaMode::MsaaX4 => {
-                gfx::texture::Kind::D2(size.0, size.1, gfx::texture::AaMode::Multi(4))
+                gfx::texture::Kind::D2(upscaled.0, upscaled.1, gfx::texture::AaMode::Multi(4))
             },
             AaMode::MsaaX8 => {
-                gfx::texture::Kind::D2(size.0, size.1, gfx::texture::AaMode::Multi(8))
+                gfx::texture::Kind::D2(upscaled.0, upscaled.1, gfx::texture::AaMode::Multi(8))
             },
             AaMode::MsaaX16 => {
-                gfx::texture::Kind::D2(size.0, size.1, gfx::texture::AaMode::Multi(16))
+                gfx::texture::Kind::D2(upscaled.0, upscaled.1, gfx::texture::AaMode::Multi(16))
             },
         };
         let levels = 1;
 
         let color_cty = <<TgtColorFmt as gfx::format::Formatted>::Channel as gfx::format::ChannelTyped
                 >::get_channel_type();
-        let tgt_color_tex = factory.create_texture(
-            kind,
-            levels,
-            gfx::memory::Bind::SHADER_RESOURCE | gfx::memory::Bind::RENDER_TARGET,
-            gfx::memory::Usage::Data,
-            Some(color_cty),
-        )?;
-        let tgt_color_res = factory.view_texture_as_shader_resource::<TgtColorFmt>(
-            &tgt_color_tex,
-            (0, levels - 1),
-            gfx::format::Swizzle::new(),
-        )?;
+        let mut color_tex = || {
+            factory.create_texture(
+                kind,
+                levels,
+                gfx::memory::Bind::SHADER_RESOURCE | gfx::memory::Bind::RENDER_TARGET,
+                gfx::memory::Usage::Data,
+                Some(color_cty),
+            )
+        };
+        let tgt_color_tex = color_tex()?;
+        let tgt_color_tex_pp = color_tex()?;
+        let mut color_res = |tex| {
+            factory.view_texture_as_shader_resource::<TgtColorFmt>(
+                tex,
+                (0, levels - 1),
+                gfx::format::Swizzle::new(),
+            )
+        };
+        let tgt_color_res = color_res(&tgt_color_tex)?;
+        let tgt_color_res_pp = color_res(&tgt_color_tex_pp)?;
         let tgt_color_view = factory.view_texture_as_render_target(&tgt_color_tex, 0, None)?;
+        let tgt_color_view_pp =
+            factory.view_texture_as_render_target(&tgt_color_tex_pp, 0, None)?;
 
         let depth_stencil_cty = <<TgtDepthStencilFmt as gfx::format::Formatted>::Channel as gfx::format::ChannelTyped>::get_channel_type();
         let tgt_depth_stencil_tex = factory.create_texture(
@@ -459,8 +507,10 @@ impl Renderer {
         Ok((
             tgt_color_view,
             tgt_depth_stencil_view,
+            tgt_color_view_pp,
             tgt_color_res,
             tgt_depth_res,
+            tgt_color_res_pp,
         ))
     }
 
@@ -763,6 +813,7 @@ impl Renderer {
                 particle_pipeline,
                 ui_pipeline,
                 lod_terrain_pipeline,
+                clouds_pipeline,
                 postprocess_pipeline,
                 player_shadow_pipeline,
                 point_shadow_pipeline,
@@ -777,6 +828,7 @@ impl Renderer {
                 self.particle_pipeline = particle_pipeline;
                 self.ui_pipeline = ui_pipeline;
                 self.lod_terrain_pipeline = lod_terrain_pipeline;
+                self.clouds_pipeline = clouds_pipeline;
                 self.postprocess_pipeline = postprocess_pipeline;
                 self.player_shadow_pipeline = player_shadow_pipeline;
                 if let (
@@ -1645,6 +1697,37 @@ impl Renderer {
         );
     }
 
+    pub fn render_clouds(
+        &mut self,
+        model: &Model<clouds::CloudsPipeline>,
+        globals: &Consts<Globals>,
+        locals: &Consts<clouds::Locals>,
+        lod: &lod_terrain::LodData,
+    ) {
+        self.encoder.draw(
+            &gfx::Slice {
+                start: model.vertex_range().start,
+                end: model.vertex_range().end,
+                base_vertex: 0,
+                instances: None,
+                buffer: gfx::IndexBuffer::Auto,
+            },
+            &self.clouds_pipeline.pso,
+            &clouds::pipe::Data {
+                vbuf: model.vbuf.clone(),
+                locals: locals.buf.clone(),
+                globals: globals.buf.clone(),
+                map: (lod.map.srv.clone(), lod.map.sampler.clone()),
+                alt: (lod.alt.srv.clone(), lod.alt.sampler.clone()),
+                horizon: (lod.horizon.srv.clone(), lod.horizon.sampler.clone()),
+                color_sampler: (self.tgt_color_res.clone(), self.sampler.clone()),
+                depth_sampler: (self.tgt_depth_res.clone(), self.sampler.clone()),
+                noise: (self.noise_tex.srv.clone(), self.noise_tex.sampler.clone()),
+                tgt_color: self.tgt_color_view_pp.clone(),
+            },
+        )
+    }
+
     pub fn render_post_process(
         &mut self,
         model: &Model<postprocess::PostProcessPipeline>,
@@ -1668,7 +1751,7 @@ impl Renderer {
                 map: (lod.map.srv.clone(), lod.map.sampler.clone()),
                 alt: (lod.alt.srv.clone(), lod.alt.sampler.clone()),
                 horizon: (lod.horizon.srv.clone(), lod.horizon.sampler.clone()),
-                color_sampler: (self.tgt_color_res.clone(), self.sampler.clone()),
+                color_sampler: (self.tgt_color_res_pp.clone(), self.sampler.clone()),
                 depth_sampler: (self.tgt_depth_res.clone(), self.sampler.clone()),
                 noise: (self.noise_tex.srv.clone(), self.noise_tex.sampler.clone()),
                 tgt_color: self.win_color_view.clone(),
@@ -1698,6 +1781,7 @@ fn create_pipelines(
         GfxPipeline<particle::pipe::Init<'static>>,
         GfxPipeline<ui::pipe::Init<'static>>,
         GfxPipeline<lod_terrain::pipe::Init<'static>>,
+        GfxPipeline<clouds::pipe::Init<'static>>,
         GfxPipeline<postprocess::pipe::Init<'static>>,
         GfxPipeline<figure::pipe::Init<'static>>,
         Option<GfxPipeline<shadow::pipe::Init<'static>>>,
@@ -1908,6 +1992,16 @@ fn create_pipelines(
         gfx::state::CullFace::Back,
     )?;
 
+    // Construct a pipeline for rendering our clouds (a kind of post-processing)
+    let clouds_pipeline = create_pipeline(
+        factory,
+        clouds::pipe::new(),
+        &Glsl::load_watched("voxygen.shaders.clouds-vert", shader_reload_indicator).unwrap(),
+        &Glsl::load_watched("voxygen.shaders.clouds-frag", shader_reload_indicator).unwrap(),
+        &include_ctx,
+        gfx::state::CullFace::Back,
+    )?;
+
     // Construct a pipeline for rendering our post-processing
     let postprocess_pipeline = create_pipeline(
         factory,
@@ -2019,6 +2113,7 @@ fn create_pipelines(
         particle_pipeline,
         ui_pipeline,
         lod_terrain_pipeline,
+        clouds_pipeline,
         postprocess_pipeline,
         player_shadow_pipeline,
         point_shadow_pipeline,

voxygen/src/scene/mod.rs

@@ -16,9 +16,9 @@ pub use self::{
 use crate::{
     audio::{music::MusicMgr, sfx::SfxMgr, AudioFrontend},
     render::{
-        create_pp_mesh, create_skybox_mesh, Consts, GlobalModel, Globals, Light, LodData, Model,
-        PostProcessLocals, PostProcessPipeline, Renderer, Shadow, ShadowLocals, SkyboxLocals,
-        SkyboxPipeline,
+        create_clouds_mesh, create_pp_mesh, create_skybox_mesh, CloudsLocals, CloudsPipeline,
+        Consts, GlobalModel, Globals, Light, LodData, Model, PostProcessLocals,
+        PostProcessPipeline, Renderer, Shadow, ShadowLocals, SkyboxLocals, SkyboxPipeline,
     },
     settings::Settings,
     window::{AnalogGameInput, Event},
@@ -71,6 +71,11 @@ struct Skybox {
     locals: Consts<SkyboxLocals>,
 }
 
+struct Clouds {
+    model: Model<CloudsPipeline>,
+    locals: Consts<CloudsLocals>,
+}
+
 struct PostProcess {
     model: Model<PostProcessPipeline>,
     locals: Consts<PostProcessLocals>,
@@ -83,6 +88,7 @@ pub struct Scene {
     event_lights: Vec<EventLight>,
 
     skybox: Skybox,
+    clouds: Clouds,
     postprocess: PostProcess,
     terrain: Terrain<TerrainChunk>,
     pub lod: Lod,
@@ -283,6 +289,10 @@ impl Scene {
                 model: renderer.create_model(&create_skybox_mesh()).unwrap(),
                 locals: renderer.create_consts(&[SkyboxLocals::default()]).unwrap(),
             },
+            clouds: Clouds {
+                model: renderer.create_model(&create_clouds_mesh()).unwrap(),
+                locals: renderer.create_consts(&[CloudsLocals::default()]).unwrap(),
+            },
             postprocess: PostProcess {
                 model: renderer.create_model(&create_pp_mesh()).unwrap(),
                 locals: renderer
@@ -664,6 +674,12 @@ impl Scene {
                 scene_data.sprite_render_distance as f32 - 20.0,
             )])
             .expect("Failed to update global constants");
+        renderer
+            .update_consts(&mut self.clouds.locals, &[CloudsLocals::new(
+                proj_mat_inv,
+                view_mat_inv,
+            )])
+            .expect("Failed to update cloud locals");
         renderer
             .update_consts(&mut self.postprocess.locals, &[PostProcessLocals::new(
                 proj_mat_inv,
@@ -1075,6 +1091,14 @@ impl Scene {
         // Render particle effects.
         self.particle_mgr.render(renderer, scene_data, global, lod);
 
+        // Render clouds (a post-processing effect)
+        renderer.render_clouds(
+            &self.clouds.model,
+            &global.globals,
+            &self.clouds.locals,
+            self.lod.get_data(),
+        );
+
         renderer.render_post_process(
             &self.postprocess.model,
             &global.globals,

voxygen/src/scene/simple.rs

@@ -1,9 +1,10 @@
 use crate::{
     mesh::{greedy::GreedyMesh, Meshable},
     render::{
-        create_pp_mesh, create_skybox_mesh, BoneMeshes, Consts, FigureModel, FigurePipeline,
-        GlobalModel, Globals, Light, Mesh, Model, PostProcessLocals, PostProcessPipeline, Renderer,
-        Shadow, ShadowLocals, SkyboxLocals, SkyboxPipeline, TerrainPipeline,
+        create_clouds_mesh, create_pp_mesh, create_skybox_mesh, BoneMeshes, CloudsLocals,
+        CloudsPipeline, Consts, FigureModel, FigurePipeline, GlobalModel, Globals, Light, Mesh,
+        Model, PostProcessLocals, PostProcessPipeline, Renderer, Shadow, ShadowLocals,
+        SkyboxLocals, SkyboxPipeline, TerrainPipeline,
     },
     scene::{
         camera::{self, Camera, CameraMode},
@@ -61,11 +62,17 @@ struct PostProcess {
     locals: Consts<PostProcessLocals>,
 }
 
+struct Clouds {
+    model: Model<CloudsPipeline>,
+    locals: Consts<CloudsLocals>,
+}
+
 pub struct Scene {
     data: GlobalModel,
     camera: Camera,
 
     skybox: Skybox,
+    clouds: Clouds,
     postprocess: PostProcess,
     lod: LodData,
     map_bounds: Vec2<f32>,
@@ -123,6 +130,10 @@ impl Scene {
                 model: renderer.create_model(&create_skybox_mesh()).unwrap(),
                 locals: renderer.create_consts(&[SkyboxLocals::default()]).unwrap(),
             },
+            clouds: Clouds {
+                model: renderer.create_model(&create_clouds_mesh()).unwrap(),
+                locals: renderer.create_consts(&[CloudsLocals::default()]).unwrap(),
+            },
             postprocess: PostProcess {
                 model: renderer.create_model(&create_pp_mesh()).unwrap(),
                 locals: renderer
@@ -377,6 +388,13 @@ impl Scene {
             );
         }
 
+        renderer.render_clouds(
+            &self.clouds.model,
+            &self.data.globals,
+            &self.clouds.locals,
+            &self.lod,
+        );
+
         renderer.render_post_process(
             &self.postprocess.model,
             &self.data.globals,