Merge branch 'zesterer/instancing' into 'master'

Instancing (block sprites)

See merge request veloren/veloren!450

assets/voxygen/shaders/figure-frag.glsl

@@ -32,7 +32,7 @@ void main() {
 	vec3 surf_color = srgb_to_linear(model_col.rgb * f_col) * 4.0 * light;
 
 	float fog_level = fog(f_pos.xyz, focus_pos.xyz, medium.x);
-	vec3 fog_color = get_sky_color(normalize(f_pos - cam_pos.xyz), time_of_day.x);
+	vec3 fog_color = get_sky_color(normalize(f_pos - cam_pos.xyz), time_of_day.x, true);
 	vec3 color = mix(surf_color, fog_color, fog_level);
 
 	tgt_color = vec4(color, 1.0);

assets/voxygen/shaders/fluid-frag.glsl

@@ -41,14 +41,14 @@ void main() {
 	vec3 surf_color = f_col * light;
 
 	float fog_level = fog(f_pos.xyz, focus_pos.xyz, medium.x);
-    vec3 fog_color = get_sky_color(normalize(f_pos - cam_pos.xyz), time_of_day.x);
+    vec3 fog_color = get_sky_color(normalize(f_pos - cam_pos.xyz), time_of_day.x, true);
 
 	vec3 cam_to_frag = normalize(f_pos - cam_pos.xyz);
 	vec3 reflect_ray_dir = reflect(cam_to_frag, norm);
 	// Hack to prevent the reflection ray dipping below the horizon and creating weird blue spots in the water
 	reflect_ray_dir.z = max(reflect_ray_dir.z, 0.05);
 
-	vec3 reflect_color = get_sky_color(reflect_ray_dir, time_of_day.x) * f_light;
+	vec3 reflect_color = get_sky_color(reflect_ray_dir, time_of_day.x, false) * f_light;
 	// 0 = 100% reflection, 1 = translucent water
 	float passthrough = pow(dot(faceforward(norm, norm, cam_to_frag), -cam_to_frag), 1.0);
 

assets/voxygen/shaders/include/sky.glsl

@@ -5,12 +5,12 @@ const float PI = 3.141592;
 const vec3 SKY_DAY_TOP = vec3(0.1, 0.2, 0.9);
 const vec3 SKY_DAY_MID = vec3(0.02, 0.08, 0.8);
 const vec3 SKY_DAY_BOT = vec3(0.02, 0.01, 0.3);
-const vec3 DAY_LIGHT   = vec3(0.75, 0.75, 1.0);
+const vec3 DAY_LIGHT   = vec3(1.3, 0.9, 1.1);
 
-const vec3 SKY_DUSK_TOP = vec3(0.21, 0.28, 0.50);
-const vec3 SKY_DUSK_MID = vec3(0.68, 0.03, 0.0);
-const vec3 SKY_DUSK_BOT = vec3(0.0, 0.0, 0.13);
-const vec3 DUSK_LIGHT   = vec3(0.95, 0.6, 0.4);
+const vec3 SKY_DUSK_TOP = vec3(0.06, 0.1, 0.20);
+const vec3 SKY_DUSK_MID = vec3(0.35, 0.1, 0.15);
+const vec3 SKY_DUSK_BOT = vec3(0.0, 0.1, 0.13);
+const vec3 DUSK_LIGHT   = vec3(3.0, 0.65, 0.3);
 
 const vec3 SKY_NIGHT_TOP = vec3(0.001, 0.001, 0.0025);
 const vec3 SKY_NIGHT_MID = vec3(0.001, 0.005, 0.02);
@@ -33,7 +33,7 @@ float get_sun_brightness(vec3 sun_dir) {
 const float PERSISTENT_AMBIANCE = 0.008;
 
 vec3 get_sun_diffuse(vec3 norm, float time_of_day) {
-	const float SUN_AMBIANCE = 0.075;
+	const float SUN_AMBIANCE = 0.15;
 
 	vec3 sun_dir = get_sun_dir(time_of_day);
 
@@ -41,7 +41,7 @@ vec3 get_sun_diffuse(vec3 norm, float time_of_day) {
 
 	// clamp() changed to max() as sun_dir.z is produced from a cos() function and therefore never greater than 1
 
-	vec3 sun_color = normalize(mix(
+	vec3 sun_color = mix(
 		mix(
 			DUSK_LIGHT,
 			NIGHT_LIGHT,
@@ -49,7 +49,7 @@ vec3 get_sun_diffuse(vec3 norm, float time_of_day) {
 		),
 		DAY_LIGHT,
 		max(-sun_dir.z, 0)
-	));
+	);
 
 	vec3 diffuse_light = (SUN_AMBIANCE + max(dot(-norm, sun_dir), 0.0) * sun_color) * sun_light + PERSISTENT_AMBIANCE;
 
@@ -83,12 +83,15 @@ float is_star_at(vec3 dir) {
 	return 0.0;
 }
 
-vec3 get_sky_color(vec3 dir, float time_of_day) {
+vec3 get_sky_color(vec3 dir, float time_of_day, bool with_stars) {
 	// Sky color
 	vec3 sun_dir = get_sun_dir(time_of_day);
 
 	// Add white dots for stars. Note these flicker and jump due to FXAA
-	float star = is_star_at(dir);
+	float star = 0.0;
+	if (with_stars) {
+		star = is_star_at(dir);
+	}
 
 	// Replaced all clamp(sun_dir, 0, 1) with max(sun_dir, 0) because sun_dir is calculated from sin and cos, which are never > 1
 
@@ -134,8 +137,8 @@ vec3 get_sky_color(vec3 dir, float time_of_day) {
 
 	// Sun
 
-	const vec3 SUN_HALO_COLOR = vec3(1.0, 0.35, 0.1) * 0.3;
-	const vec3 SUN_SURF_COLOR = vec3(1.0, 0.9, 0.35) * 200.0;
+	const vec3 SUN_HALO_COLOR = vec3(1.5, 0.35, 0.0) * 0.3;
+	const vec3 SUN_SURF_COLOR = vec3(1.5, 0.9, 0.35) * 200.0;
 
 	vec3 sun_halo = pow(max(dot(dir, -sun_dir) + 0.1, 0.0), 8.0) * SUN_HALO_COLOR;
 	vec3 sun_surf = pow(max(dot(dir, -sun_dir) - 0.0045, 0.0), 1000.0) * SUN_SURF_COLOR;

assets/voxygen/shaders/skybox-frag.glsl

@@ -13,5 +13,5 @@ uniform u_locals {
 out vec4 tgt_color;
 
 void main() {
-	tgt_color = vec4(get_sky_color(normalize(f_pos), time_of_day.x), 1.0);
+	tgt_color = vec4(get_sky_color(normalize(f_pos), time_of_day.x, true), 1.0);
 }

assets/voxygen/shaders/sprite-frag.glsl

@@ -0,0 +1,27 @@
+#version 330 core
+
+#include <globals.glsl>
+
+in vec3 f_pos;
+flat in vec3 f_norm;
+in vec3 f_col;
+in float f_light;
+
+out vec4 tgt_color;
+
+#include <sky.glsl>
+#include <light.glsl>
+
+const float RENDER_DIST = 112.0;
+const float FADE_DIST = 32.0;
+
+void main() {
+	vec3 light = get_sun_diffuse(f_norm, time_of_day.x) * f_light + light_at(f_pos, f_norm);
+	vec3 surf_color = f_col * light;
+
+	float fog_level = fog(f_pos.xyz, focus_pos.xyz, medium.x);
+	vec3 fog_color = get_sky_color(normalize(f_pos - cam_pos.xyz), time_of_day.x, true);
+	vec3 color = mix(surf_color, fog_color, fog_level);
+
+	tgt_color = vec4(color, 1.0 - clamp((distance(focus_pos.xy, f_pos.xy) - (RENDER_DIST - FADE_DIST)) / FADE_DIST, 0, 1));
+}

assets/voxygen/shaders/sprite-vert.glsl

@@ -0,0 +1,49 @@
+#version 330 core
+
+#include <globals.glsl>
+#include <srgb.glsl>
+
+in vec3 v_pos;
+in vec3 v_norm;
+in vec3 v_col;
+in vec4 inst_mat0;
+in vec4 inst_mat1;
+in vec4 inst_mat2;
+in vec4 inst_mat3;
+in vec3 inst_col;
+in float inst_wind_sway;
+
+out vec3 f_pos;
+flat out vec3 f_norm;
+out vec3 f_col;
+out float f_light;
+
+const float SCALE = 1.0 / 11.0;
+
+void main() {
+	mat4 inst_mat;
+	inst_mat[0] = inst_mat0;
+	inst_mat[1] = inst_mat1;
+	inst_mat[2] = inst_mat2;
+	inst_mat[3] = inst_mat3;
+
+	f_pos = (inst_mat * vec4(v_pos * SCALE, 1)).xyz;
+
+	// Wind waving
+	f_pos += inst_wind_sway * vec3(
+		sin(tick.x * 1.5 + f_pos.y * 0.1) * sin(tick.x * 0.35),
+		sin(tick.x * 1.5 + f_pos.x * 0.1) * sin(tick.x * 0.25),
+		0.0
+	) * pow(v_pos.z * SCALE, 1.3) * 0.2;
+
+	f_norm = (inst_mat * vec4(v_norm, 0)).xyz;
+
+	f_col = v_col * inst_col;
+
+	f_light = 1.0;
+
+	gl_Position =
+		proj_mat *
+		view_mat *
+		vec4(f_pos, 1);
+}

assets/voxygen/shaders/terrain-frag.glsl

@@ -22,7 +22,7 @@ void main() {
 	vec3 surf_color = f_col * light;
 
 	float fog_level = fog(f_pos.xyz, focus_pos.xyz, medium.x);
-	vec3 fog_color = get_sky_color(normalize(f_pos - cam_pos.xyz), time_of_day.x);
+	vec3 fog_color = get_sky_color(normalize(f_pos - cam_pos.xyz), time_of_day.x, true);
 	vec3 color = mix(surf_color, fog_color, fog_level);
 
 	tgt_color = vec4(color, 1.0);

common/src/terrain/block.rs

@@ -3,19 +3,45 @@ use serde_derive::{Deserialize, Serialize};
 use std::ops::Deref;
 use vek::*;
 
-#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, Serialize, Deserialize)]
 #[repr(u8)]
 pub enum BlockKind {
     Air,
     Normal,
     Dense,
     Water,
+    LargeCactus,
+    BarrelCactus,
+    BlueFlower,
+    PinkFlower,
+    PurpleFlower,
+    RedFlower,
+    WhiteFlower,
+    YellowFlower,
+    Sunflower,
+    LongGrass,
+    MediumGrass,
+    ShortGrass,
+    Apple,
 }
 
 impl BlockKind {
     pub fn is_air(&self) -> bool {
         match self {
             BlockKind::Air => true,
+            BlockKind::LargeCactus => false,
+            BlockKind::BarrelCactus => true,
+            BlockKind::BlueFlower => true,
+            BlockKind::PinkFlower => true,
+            BlockKind::PurpleFlower => true,
+            BlockKind::RedFlower => true,
+            BlockKind::WhiteFlower => true,
+            BlockKind::YellowFlower => true,
+            BlockKind::Sunflower => true,
+            BlockKind::LongGrass => true,
+            BlockKind::MediumGrass => true,
+            BlockKind::ShortGrass => true,
+            BlockKind::Apple => true,
             _ => false,
         }
     }
@@ -31,6 +57,19 @@ impl BlockKind {
         match self {
             BlockKind::Air => false,
             BlockKind::Water => false,
+            BlockKind::LargeCactus => false,
+            BlockKind::BarrelCactus => false,
+            BlockKind::BlueFlower => false,
+            BlockKind::PinkFlower => false,
+            BlockKind::PurpleFlower => false,
+            BlockKind::RedFlower => false,
+            BlockKind::WhiteFlower => false,
+            BlockKind::YellowFlower => false,
+            BlockKind::Sunflower => false,
+            BlockKind::LongGrass => false,
+            BlockKind::MediumGrass => false,
+            BlockKind::ShortGrass => false,
+            BlockKind::Apple => false,
             _ => true,
         }
     }
@@ -39,6 +78,19 @@ impl BlockKind {
         match self {
             BlockKind::Air => false,
             BlockKind::Water => false,
+            BlockKind::LargeCactus => true,
+            BlockKind::BarrelCactus => true,
+            BlockKind::BlueFlower => false,
+            BlockKind::PinkFlower => false,
+            BlockKind::PurpleFlower => false,
+            BlockKind::RedFlower => false,
+            BlockKind::WhiteFlower => false,
+            BlockKind::YellowFlower => false,
+            BlockKind::Sunflower => false,
+            BlockKind::LongGrass => false,
+            BlockKind::MediumGrass => false,
+            BlockKind::ShortGrass => false,
+            BlockKind::Apple => true,
             _ => true,
         }
     }

voxygen/src/mesh/mod.rs

@@ -4,7 +4,7 @@ mod vol;
 
 use crate::render::{self, Mesh};
 
-pub trait Meshable {
+pub trait Meshable<P: render::Pipeline, T: render::Pipeline> {
     type Pipeline: render::Pipeline;
     type TranslucentPipeline: render::Pipeline;
     type Supplement;

voxygen/src/mesh/segment.rs

@@ -1,6 +1,6 @@
 use crate::{
     mesh::{vol, Meshable},
-    render::{self, FigurePipeline, Mesh},
+    render::{self, FigurePipeline, Mesh, SpritePipeline},
 };
 use common::{
     figure::Segment,
@@ -10,8 +10,9 @@ use common::{
 use vek::*;
 
 type FigureVertex = <FigurePipeline as render::Pipeline>::Vertex;
+type SpriteVertex = <SpritePipeline as render::Pipeline>::Vertex;
 
-impl Meshable for Segment {
+impl Meshable<FigurePipeline, FigurePipeline> for Segment {
     type Pipeline = FigurePipeline;
     type TranslucentPipeline = FigurePipeline;
     type Supplement = Vec3<f32>;
@@ -51,3 +52,43 @@ impl Meshable for Segment {
         (mesh, Mesh::new())
     }
 }
+
+impl Meshable<SpritePipeline, SpritePipeline> for Segment {
+    type Pipeline = SpritePipeline;
+    type TranslucentPipeline = SpritePipeline;
+    type Supplement = Vec3<f32>;
+
+    fn generate_mesh(
+        &self,
+        offs: Self::Supplement,
+    ) -> (Mesh<Self::Pipeline>, Mesh<Self::TranslucentPipeline>) {
+        let mut mesh = Mesh::new();
+
+        for pos in self.iter_positions() {
+            if let Some(col) = self.get(pos).ok().and_then(|vox| vox.get_color()) {
+                let col = col.map(|e| e as f32 / 255.0);
+
+                vol::push_vox_verts(
+                    &mut mesh,
+                    self,
+                    pos,
+                    offs + pos.map(|e| e as f32),
+                    col,
+                    |origin, norm, col, ao, light| {
+                        SpriteVertex::new(
+                            origin,
+                            norm,
+                            linear_to_srgb(srgb_to_linear(col) * ao * light),
+                        )
+                    },
+                    true,
+                    &[[[1.0; 3]; 3]; 3],
+                    |vox| vox.is_empty(),
+                    |vox| !vox.is_empty(),
+                );
+            }
+        }
+
+        (mesh, Mesh::new())
+    }
+}

voxygen/src/mesh/terrain.rs

@@ -14,15 +14,19 @@ type TerrainVertex = <TerrainPipeline as render::Pipeline>::Vertex;
 type FluidVertex = <FluidPipeline as render::Pipeline>::Vertex;
 
 fn block_shadow_density(kind: BlockKind) -> (f32, f32) {
+    // (density, cap)
     match kind {
-        BlockKind::Air => (0.0, 0.0),
         BlockKind::Normal => (0.085, 0.3),
         BlockKind::Dense => (0.3, 0.0),
         BlockKind::Water => (0.15, 0.0),
+        kind if kind.is_air() => (0.0, 0.0),
+        _ => (1.0, 0.0),
     }
 }
 
-impl<V: BaseVol<Vox = Block> + ReadVol + Debug, S: VolSize + Clone> Meshable for VolMap2d<V, S> {
+impl<V: BaseVol<Vox = Block> + ReadVol + Debug, S: VolSize + Clone>
+    Meshable<TerrainPipeline, FluidPipeline> for VolMap2d<V, S>
+{
     type Pipeline = TerrainPipeline;
     type TranslucentPipeline = FluidPipeline;
     type Supplement = Aabb<i32>;

voxygen/src/render/instances.rs

@@ -0,0 +1,36 @@
+use super::{gfx_backend, RenderError};
+use gfx::{
+    self,
+    buffer::Role,
+    memory::{Bind, Usage},
+    Factory,
+};
+
+/// Represents a mesh that has been sent to the GPU.
+pub struct Instances<T: Copy + gfx::traits::Pod> {
+    pub ibuf: gfx::handle::Buffer<gfx_backend::Resources, T>,
+}
+
+impl<T: Copy + gfx::traits::Pod> Instances<T> {
+    pub fn new(factory: &mut gfx_backend::Factory, len: usize) -> Result<Self, RenderError> {
+        Ok(Self {
+            ibuf: factory
+                .create_buffer(len, Role::Vertex, Usage::Dynamic, Bind::TRANSFER_DST)
+                .map_err(|err| RenderError::BufferCreationError(err))?,
+        })
+    }
+
+    pub fn count(&self) -> usize {
+        self.ibuf.len()
+    }
+
+    pub fn update(
+        &mut self,
+        encoder: &mut gfx::Encoder<gfx_backend::Resources, gfx_backend::CommandBuffer>,
+        instances: &[T],
+    ) -> Result<(), RenderError> {
+        encoder
+            .update_buffer(&self.ibuf, instances, 0)
+            .map_err(|err| RenderError::UpdateError(err))
+    }
+}

voxygen/src/render/mod.rs

@@ -1,4 +1,5 @@
 pub mod consts;
+pub mod instances;
 pub mod mesh;
 pub mod model;
 pub mod pipelines;
@@ -9,6 +10,7 @@ mod util;
 // Reexports
 pub use self::{
     consts::Consts,
+    instances::Instances,
     mesh::{Mesh, Quad, Tri},
     model::{DynamicModel, Model},
     pipelines::{
@@ -18,6 +20,7 @@ pub use self::{
             create_mesh as create_pp_mesh, Locals as PostProcessLocals, PostProcessPipeline,
         },
         skybox::{create_mesh as create_skybox_mesh, Locals as SkyboxLocals, SkyboxPipeline},
+        sprite::{Instance as SpriteInstance, SpritePipeline},
         terrain::{Locals as TerrainLocals, TerrainPipeline},
         ui::{
             create_quad as create_ui_quad, create_tri as create_ui_tri, Locals as UiLocals,

voxygen/src/render/model.rs

@@ -10,22 +10,20 @@ use std::ops::Range;
 /// Represents a mesh that has been sent to the GPU.
 pub struct Model<P: Pipeline> {
     pub vbuf: gfx::handle::Buffer<gfx_backend::Resources, P::Vertex>,
-    pub slice: gfx::Slice<gfx_backend::Resources>,
+    pub vertex_range: Range<u32>,
 }
 
 impl<P: Pipeline> Model<P> {
     pub fn new(factory: &mut gfx_backend::Factory, mesh: &Mesh<P>) -> Self {
         Self {
             vbuf: factory.create_vertex_buffer(mesh.vertices()),
-            slice: gfx::Slice {
-                start: 0,
-                end: mesh.vertices().len() as u32,
-                base_vertex: 0,
-                instances: None,
-                buffer: gfx::IndexBuffer::Auto,
-            },
+            vertex_range: 0..mesh.vertices().len() as u32,
         }
     }
+
+    pub fn vertex_range(&self) -> Range<u32> {
+        self.vertex_range.clone()
+    }
 }
 
 /// Represents a mesh on the GPU which can be updated dynamically.
@@ -46,13 +44,7 @@ impl<P: Pipeline> DynamicModel<P> {
     pub fn submodel(&self, range: Range<usize>) -> Model<P> {
         Model {
             vbuf: self.vbuf.clone(),
-            slice: gfx::Slice {
-                start: range.start as u32,
-                end: range.end as u32,
-                base_vertex: 0,
-                instances: None,
-                buffer: gfx::IndexBuffer::Auto,
-            },
+            vertex_range: range.start as u32..range.end as u32,
         }
     }
 

voxygen/src/render/pipelines/mod.rs

@@ -2,6 +2,7 @@ pub mod figure;
 pub mod fluid;
 pub mod postprocess;
 pub mod skybox;
+pub mod sprite;
 pub mod terrain;
 pub mod ui;
 

voxygen/src/render/pipelines/sprite.rs

@@ -0,0 +1,79 @@
+use super::{
+    super::{util::arr_to_mat, Pipeline, TgtColorFmt, TgtDepthFmt},
+    Globals, Light,
+};
+use gfx::{
+    self,
+    // Macros
+    gfx_defines,
+    gfx_impl_struct_meta,
+    gfx_pipeline,
+    gfx_pipeline_inner,
+    gfx_vertex_struct_meta,
+    state::ColorMask,
+};
+use vek::*;
+
+gfx_defines! {
+    vertex Vertex {
+        pos: [f32; 3] = "v_pos",
+        norm: [f32; 3] = "v_norm",
+        col: [f32; 3] = "v_col",
+    }
+
+    vertex Instance {
+        inst_mat0: [f32; 4] = "inst_mat0",
+        inst_mat1: [f32; 4] = "inst_mat1",
+        inst_mat2: [f32; 4] = "inst_mat2",
+        inst_mat3: [f32; 4] = "inst_mat3",
+        inst_col: [f32; 3] = "inst_col",
+        inst_wind_sway: f32 = "inst_wind_sway",
+    }
+
+    pipeline pipe {
+        vbuf: gfx::VertexBuffer<Vertex> = (),
+        ibuf: gfx::InstanceBuffer<Instance> = (),
+
+        globals: gfx::ConstantBuffer<Globals> = "u_globals",
+        lights: gfx::ConstantBuffer<Light> = "u_lights",
+
+        tgt_color: gfx::BlendTarget<TgtColorFmt> = ("tgt_color", ColorMask::all(), gfx::preset::blend::ALPHA),
+        tgt_depth: gfx::DepthTarget<TgtDepthFmt> = gfx::preset::depth::LESS_EQUAL_WRITE,
+    }
+}
+
+impl Vertex {
+    pub fn new(pos: Vec3<f32>, norm: Vec3<f32>, col: Rgb<f32>) -> Self {
+        Self {
+            pos: pos.into_array(),
+            col: col.into_array(),
+            norm: norm.into_array(),
+        }
+    }
+}
+
+impl Instance {
+    pub fn new(mat: Mat4<f32>, col: Rgb<f32>, wind_sway: f32) -> Self {
+        let mat_arr = arr_to_mat(mat.into_col_array());
+        Self {
+            inst_mat0: mat_arr[0],
+            inst_mat1: mat_arr[1],
+            inst_mat2: mat_arr[2],
+            inst_mat3: mat_arr[3],
+            inst_col: col.into_array(),
+            inst_wind_sway: wind_sway,
+        }
+    }
+}
+
+impl Default for Instance {
+    fn default() -> Self {
+        Self::new(Mat4::identity(), Rgb::broadcast(1.0), 0.0)
+    }
+}
+
+pub struct SpritePipeline;
+
+impl Pipeline for SpritePipeline {
+    type Vertex = Vertex;
+}

voxygen/src/render/renderer.rs

@@ -1,9 +1,10 @@
 use super::{
     consts::Consts,
     gfx_backend,
+    instances::Instances,
     mesh::Mesh,
     model::{DynamicModel, Model},
-    pipelines::{figure, fluid, postprocess, skybox, terrain, ui, Globals, Light},
+    pipelines::{figure, fluid, postprocess, skybox, sprite, terrain, ui, Globals, Light},
     texture::Texture,
     Pipeline, RenderError,
 };
@@ -65,6 +66,7 @@ pub struct Renderer {
     figure_pipeline: GfxPipeline<figure::pipe::Init<'static>>,
     terrain_pipeline: GfxPipeline<terrain::pipe::Init<'static>>,
     fluid_pipeline: GfxPipeline<fluid::pipe::Init<'static>>,
+    sprite_pipeline: GfxPipeline<sprite::pipe::Init<'static>>,
     ui_pipeline: GfxPipeline<ui::pipe::Init<'static>>,
     postprocess_pipeline: GfxPipeline<postprocess::pipe::Init<'static>>,
 
@@ -86,6 +88,7 @@ impl Renderer {
             figure_pipeline,
             terrain_pipeline,
             fluid_pipeline,
+            sprite_pipeline,
             ui_pipeline,
             postprocess_pipeline,
         ) = create_pipelines(&mut factory, &mut shader_reload_indicator)?;
@@ -114,6 +117,7 @@ impl Renderer {
             figure_pipeline,
             terrain_pipeline,
             fluid_pipeline,
+            sprite_pipeline,
             ui_pipeline,
             postprocess_pipeline,
 
@@ -201,6 +205,7 @@ impl Renderer {
                     figure_pipeline,
                     terrain_pipeline,
                     fluid_pipeline,
+                    sprite_pipeline,
                     ui_pipeline,
                     postprocess_pipeline,
                 )) => {
@@ -208,6 +213,7 @@ impl Renderer {
                     self.figure_pipeline = figure_pipeline;
                     self.terrain_pipeline = terrain_pipeline;
                     self.fluid_pipeline = fluid_pipeline;
+                    self.sprite_pipeline = sprite_pipeline;
                     self.ui_pipeline = ui_pipeline;
                     self.postprocess_pipeline = postprocess_pipeline;
                 }
@@ -238,6 +244,16 @@ impl Renderer {
         consts.update(&mut self.encoder, vals)
     }
 
+    /// Create a new set of instances with the provided values.
+    pub fn create_instances<T: Copy + gfx::traits::Pod>(
+        &mut self,
+        vals: &[T],
+    ) -> Result<Instances<T>, RenderError> {
+        let mut instances = Instances::new(&mut self.factory, vals.len())?;
+        instances.update(&mut self.encoder, vals)?;
+        Ok(instances)
+    }
+
     /// Create a new model from the provided mesh.
     pub fn create_model<P: Pipeline>(&mut self, mesh: &Mesh<P>) -> Result<Model<P>, RenderError> {
         Ok(Model::new(&mut self.factory, mesh))
@@ -350,7 +366,13 @@ impl Renderer {
         locals: &Consts<skybox::Locals>,
     ) {
         self.encoder.draw(
-            &model.slice,
+            &gfx::Slice {
+                start: model.vertex_range().start,
+                end: model.vertex_range().end,
+                base_vertex: 0,
+                instances: None,
+                buffer: gfx::IndexBuffer::Auto,
+            },
             &self.skybox_pipeline.pso,
             &skybox::pipe::Data {
                 vbuf: model.vbuf.clone(),
@@ -372,7 +394,13 @@ impl Renderer {
         lights: &Consts<Light>,
     ) {
         self.encoder.draw(
-            &model.slice,
+            &gfx::Slice {
+                start: model.vertex_range().start,
+                end: model.vertex_range().end,
+                base_vertex: 0,
+                instances: None,
+                buffer: gfx::IndexBuffer::Auto,
+            },
             &self.figure_pipeline.pso,
             &figure::pipe::Data {
                 vbuf: model.vbuf.clone(),
@@ -395,7 +423,13 @@ impl Renderer {
         lights: &Consts<Light>,
     ) {
         self.encoder.draw(
-            &model.slice,
+            &gfx::Slice {
+                start: model.vertex_range().start,
+                end: model.vertex_range().end,
+                base_vertex: 0,
+                instances: None,
+                buffer: gfx::IndexBuffer::Auto,
+            },
             &self.terrain_pipeline.pso,
             &terrain::pipe::Data {
                 vbuf: model.vbuf.clone(),
@@ -417,7 +451,13 @@ impl Renderer {
         lights: &Consts<Light>,
     ) {
         self.encoder.draw(
-            &model.slice,
+            &gfx::Slice {
+                start: model.vertex_range().start,
+                end: model.vertex_range().end,
+                base_vertex: 0,
+                instances: None,
+                buffer: gfx::IndexBuffer::Auto,
+            },
             &self.fluid_pipeline.pso,
             &fluid::pipe::Data {
                 vbuf: model.vbuf.clone(),
@@ -430,6 +470,34 @@ impl Renderer {
         );
     }
 
+    /// Queue the rendering of the provided terrain chunk model in the upcoming frame.
+    pub fn render_sprites(
+        &mut self,
+        model: &Model<sprite::SpritePipeline>,
+        globals: &Consts<Globals>,
+        instances: &Instances<sprite::Instance>,
+        lights: &Consts<Light>,
+    ) {
+        self.encoder.draw(
+            &gfx::Slice {
+                start: model.vertex_range().start,
+                end: model.vertex_range().end,
+                base_vertex: 0,
+                instances: Some((instances.count() as u32, 0)),
+                buffer: gfx::IndexBuffer::Auto,
+            },
+            &self.sprite_pipeline.pso,
+            &sprite::pipe::Data {
+                vbuf: model.vbuf.clone(),
+                ibuf: instances.ibuf.clone(),
+                globals: globals.buf.clone(),
+                lights: lights.buf.clone(),
+                tgt_color: self.tgt_color_view.clone(),
+                tgt_depth: self.tgt_depth_view.clone(),
+            },
+        );
+    }
+
     /// Queue the rendering of the provided UI element in the upcoming frame.
     pub fn render_ui_element(
         &mut self,
@@ -441,7 +509,13 @@ impl Renderer {
     ) {
         let Aabr { min, max } = scissor;
         self.encoder.draw(
-            &model.slice,
+            &gfx::Slice {
+                start: model.vertex_range().start,
+                end: model.vertex_range().end,
+                base_vertex: 0,
+                instances: None,
+                buffer: gfx::IndexBuffer::Auto,
+            },
             &self.ui_pipeline.pso,
             &ui::pipe::Data {
                 vbuf: model.vbuf.clone(),
@@ -467,7 +541,13 @@ impl Renderer {
         locals: &Consts<postprocess::Locals>,
     ) {
         self.encoder.draw(
-            &model.slice,
+            &gfx::Slice {
+                start: model.vertex_range().start,
+                end: model.vertex_range().end,
+                base_vertex: 0,
+                instances: None,
+                buffer: gfx::IndexBuffer::Auto,
+            },
             &self.postprocess_pipeline.pso,
             &postprocess::pipe::Data {
                 vbuf: model.vbuf.clone(),
@@ -495,6 +575,7 @@ fn create_pipelines(
         GfxPipeline<figure::pipe::Init<'static>>,
         GfxPipeline<terrain::pipe::Init<'static>>,
         GfxPipeline<fluid::pipe::Init<'static>>,
+        GfxPipeline<sprite::pipe::Init<'static>>,
         GfxPipeline<ui::pipe::Init<'static>>,
         GfxPipeline<postprocess::pipe::Init<'static>>,
     ),
@@ -571,6 +652,18 @@ fn create_pipelines(
         gfx::state::CullFace::Nothing,
     )?;
 
+    // Construct a pipeline for rendering sprites
+    let sprite_pipeline = create_pipeline(
+        factory,
+        sprite::pipe::new(),
+        &assets::load_watched::<String>("voxygen.shaders.sprite-vert", shader_reload_indicator)
+            .unwrap(),
+        &assets::load_watched::<String>("voxygen.shaders.sprite-frag", shader_reload_indicator)
+            .unwrap(),
+        &include_ctx,
+        gfx::state::CullFace::Back,
+    )?;
+
     // Construct a pipeline for rendering UI elements
     let ui_pipeline = create_pipeline(
         factory,
@@ -606,6 +699,7 @@ fn create_pipelines(
         figure_pipeline,
         terrain_pipeline,
         fluid_pipeline,
+        sprite_pipeline,
         ui_pipeline,
         postprocess_pipeline,
     ))

voxygen/src/scene/figure.rs

@@ -163,8 +163,10 @@ impl FigureModelCache {
     // TODO: Don't make this public.
     pub fn load_mesh(mesh_name: &str, position: Vec3<f32>) -> Mesh<FigurePipeline> {
         let full_specifier: String = ["voxygen.voxel.", mesh_name].concat();
-        Segment::from(assets::load_expect::<DotVoxData>(full_specifier.as_str()).as_ref())
-            .generate_mesh(position)
+        Meshable::<FigurePipeline, FigurePipeline>::generate_mesh(
+            &Segment::from(assets::load_expect::<DotVoxData>(full_specifier.as_str()).as_ref()),
+            position,
+        )
         .0
     }
 

voxygen/src/scene/mod.rs

@@ -68,7 +68,7 @@ impl Scene {
                     .create_consts(&[PostProcessLocals::default()])
                     .unwrap(),
             },
-            terrain: Terrain::new(),
+            terrain: Terrain::new(renderer),
             loaded_distance: 0.0,
             figure_mgr: FigureMgr::new(),
         }
@@ -229,7 +229,12 @@ impl Scene {
         // Render terrain and figures.
         self.figure_mgr
             .render(renderer, client, &self.globals, &self.lights, &self.camera);
-        self.terrain.render(renderer, &self.globals, &self.lights);
+        self.terrain.render(
+            renderer,
+            &self.globals,
+            &self.lights,
+            self.camera.get_focus_pos(),
+        );
 
         renderer.render_post_process(
             &self.postprocess.model,

voxygen/src/scene/terrain.rs

@@ -1,27 +1,32 @@
 use crate::{
     mesh::Meshable,
     render::{
-        Consts, FluidPipeline, Globals, Light, Mesh, Model, Renderer, TerrainLocals,
-        TerrainPipeline,
+        Consts, FluidPipeline, Globals, Instances, Light, Mesh, Model, Renderer, SpriteInstance,
+        SpritePipeline, TerrainLocals, TerrainPipeline,
     },
 };
 use client::Client;
 use common::{
-    terrain::{TerrainChunkSize, TerrainMap},
-    vol::{SampleVol, VolSize},
+    assets,
+    figure::Segment,
+    terrain::{Block, BlockKind, TerrainChunkSize, TerrainMap},
+    vol::{ReadVol, SampleVol, VolSize, Vox},
     volumes::vol_map_2d::VolMap2dErr,
 };
 use crossbeam::channel;
+use dot_vox::DotVoxData;
 use frustum_query::frustum::Frustum;
 use hashbrown::HashMap;
-use std::{i32, ops::Mul, time::Duration};
+use std::{f32, i32, ops::Mul, time::Duration};
 use vek::*;
 
 struct TerrainChunk {
     // GPU data
     opaque_model: Model<TerrainPipeline>,
     fluid_model: Model<FluidPipeline>,
+    sprite_instances: HashMap<(BlockKind, usize), Instances<SpriteInstance>>,
     locals: Consts<TerrainLocals>,
+
     visible: bool,
     z_bounds: (f32, f32),
 }
@@ -38,9 +43,72 @@ struct MeshWorkerResponse {
     z_bounds: (f32, f32),
     opaque_mesh: Mesh<TerrainPipeline>,
     fluid_mesh: Mesh<FluidPipeline>,
+    sprite_instances: HashMap<(BlockKind, usize), Vec<SpriteInstance>>,
     started_tick: u64,
 }
 
+struct SpriteConfig {
+    variations: usize,
+    wind_sway: f32, // 1.0 is normal
+}
+
+fn sprite_config_for(kind: BlockKind) -> Option<SpriteConfig> {
+    match kind {
+        BlockKind::LargeCactus => Some(SpriteConfig {
+            variations: 1,
+            wind_sway: 0.0,
+        }),
+        BlockKind::BarrelCactus => Some(SpriteConfig {
+            variations: 1,
+            wind_sway: 0.0,
+        }),
+
+        BlockKind::BlueFlower => Some(SpriteConfig {
+            variations: 2,
+            wind_sway: 0.3,
+        }),
+        BlockKind::PinkFlower => Some(SpriteConfig {
+            variations: 3,
+            wind_sway: 0.3,
+        }),
+        BlockKind::RedFlower => Some(SpriteConfig {
+            variations: 1,
+            wind_sway: 0.3,
+        }),
+        BlockKind::WhiteFlower => Some(SpriteConfig {
+            variations: 1,
+            wind_sway: 0.3,
+        }),
+        BlockKind::YellowFlower => Some(SpriteConfig {
+            variations: 1,
+            wind_sway: 0.3,
+        }),
+        BlockKind::Sunflower => Some(SpriteConfig {
+            variations: 2,
+            wind_sway: 0.3,
+        }),
+
+        BlockKind::LongGrass => Some(SpriteConfig {
+            variations: 5,
+            wind_sway: 1.0,
+        }),
+        BlockKind::MediumGrass => Some(SpriteConfig {
+            variations: 5,
+            wind_sway: 1.0,
+        }),
+        BlockKind::ShortGrass => Some(SpriteConfig {
+            variations: 5,
+            wind_sway: 1.0,
+        }),
+
+        BlockKind::Apple => Some(SpriteConfig {
+            variations: 1,
+            wind_sway: 0.0,
+        }),
+        _ => None,
+    }
+}
+
 /// Function executed by worker threads dedicated to chunk meshing.
 fn mesh_worker(
     pos: Vec2<i32>,
@@ -55,6 +123,43 @@ fn mesh_worker(
         z_bounds,
         opaque_mesh,
         fluid_mesh,
+        // Extract sprite locations from volume
+        sprite_instances: {
+            let mut instances = HashMap::new();
+
+            for x in 0..TerrainChunkSize::SIZE.x as i32 {
+                for y in 0..TerrainChunkSize::SIZE.y as i32 {
+                    for z in z_bounds.0 as i32..z_bounds.1 as i32 + 1 {
+                        let wpos = Vec3::from(
+                            pos * Vec2::from(TerrainChunkSize::SIZE).map(|e: u32| e as i32),
+                        ) + Vec3::new(x, y, z);
+
+                        let kind = volume.get(wpos).unwrap_or(&Block::empty()).kind();
+
+                        if let Some(cfg) = sprite_config_for(kind) {
+                            let seed = wpos.x * 3 + wpos.y * 7 + wpos.z * 13 + wpos.x * wpos.y;
+
+                            let instance = SpriteInstance::new(
+                                Mat4::identity()
+                                    .rotated_z(f32::consts::PI * 0.5 * (seed % 4) as f32)
+                                    .translated_3d(
+                                        wpos.map(|e| e as f32) + Vec3::new(0.5, 0.5, 0.0),
+                                    ),
+                                Rgb::broadcast(1.0),
+                                cfg.wind_sway,
+                            );
+
+                            instances
+                                .entry((kind, seed as usize % cfg.variations))
+                                .or_insert_with(|| Vec::new())
+                                .push(instance);
+                        }
+                    }
+                }
+            }
+
+            instances
+        },
         started_tick,
     }
 }
@@ -67,19 +172,158 @@ pub struct Terrain {
     mesh_send_tmp: channel::Sender<MeshWorkerResponse>,
     mesh_recv: channel::Receiver<MeshWorkerResponse>,
     mesh_todo: HashMap<Vec2<i32>, ChunkMeshState>,
+
+    // GPU data
+    sprite_models: HashMap<(BlockKind, usize), Model<SpritePipeline>>,
 }
 
 impl Terrain {
-    pub fn new() -> Self {
+    pub fn new(renderer: &mut Renderer) -> Self {
         // Create a new mpsc (Multiple Produced, Single Consumer) pair for communicating with
         // worker threads that are meshing chunks.
         let (send, recv) = channel::unbounded();
 
+        let mut make_model = |s| {
+            renderer
+                .create_model(
+                    &Meshable::<SpritePipeline, SpritePipeline>::generate_mesh(
+                        &Segment::from(assets::load_expect::<DotVoxData>(s).as_ref()),
+                        Vec3::new(-6.0, -6.0, 0.0),
+                    )
+                    .0,
+                )
+                .unwrap()
+        };
+
         Self {
             chunks: HashMap::default(),
             mesh_send_tmp: send,
             mesh_recv: recv,
             mesh_todo: HashMap::default(),
+            sprite_models: vec![
+                // Cacti
+                (
+                    (BlockKind::LargeCactus, 0),
+                    make_model("voxygen.voxel.sprite.cacti.large_cactus"),
+                ),
+                (
+                    (BlockKind::BarrelCactus, 0),
+                    make_model("voxygen.voxel.sprite.cacti.barrel_cactus"),
+                ),
+                // Fruit
+                (
+                    (BlockKind::Apple, 0),
+                    make_model("voxygen.voxel.sprite.fruit.apple"),
+                ),
+                // Flowers
+                (
+                    (BlockKind::BlueFlower, 0),
+                    make_model("voxygen.voxel.sprite.flowers.flower_blue_1"),
+                ),
+                (
+                    (BlockKind::BlueFlower, 1),
+                    make_model("voxygen.voxel.sprite.flowers.flower_blue_2"),
+                ),
+                (
+                    (BlockKind::PinkFlower, 0),
+                    make_model("voxygen.voxel.sprite.flowers.flower_pink_1"),
+                ),
+                (
+                    (BlockKind::PinkFlower, 1),
+                    make_model("voxygen.voxel.sprite.flowers.flower_pink_2"),
+                ),
+                (
+                    (BlockKind::PinkFlower, 2),
+                    make_model("voxygen.voxel.sprite.flowers.flower_pink_3"),
+                ),
+                (
+                    (BlockKind::PurpleFlower, 0),
+                    make_model("voxygen.voxel.sprite.flowers.flower_purple_1"),
+                ),
+                (
+                    (BlockKind::RedFlower, 0),
+                    make_model("voxygen.voxel.sprite.flowers.flower_red_1"),
+                ),
+                (
+                    (BlockKind::WhiteFlower, 0),
+                    make_model("voxygen.voxel.sprite.flowers.flower_white_1"),
+                ),
+                (
+                    (BlockKind::YellowFlower, 0),
+                    make_model("voxygen.voxel.sprite.flowers.flower_purple_1"),
+                ),
+                (
+                    (BlockKind::Sunflower, 0),
+                    make_model("voxygen.voxel.sprite.flowers.sunflower_1"),
+                ),
+                (
+                    (BlockKind::Sunflower, 1),
+                    make_model("voxygen.voxel.sprite.flowers.sunflower_2"),
+                ),
+                // Grass
+                (
+                    (BlockKind::LongGrass, 0),
+                    make_model("voxygen.voxel.sprite.grass.grass_long_1"),
+                ),
+                (
+                    (BlockKind::LongGrass, 1),
+                    make_model("voxygen.voxel.sprite.grass.grass_long_2"),
+                ),
+                (
+                    (BlockKind::LongGrass, 2),
+                    make_model("voxygen.voxel.sprite.grass.grass_long_3"),
+                ),
+                (
+                    (BlockKind::LongGrass, 3),
+                    make_model("voxygen.voxel.sprite.grass.grass_long_4"),
+                ),
+                (
+                    (BlockKind::LongGrass, 4),
+                    make_model("voxygen.voxel.sprite.grass.grass_long_5"),
+                ),
+                (
+                    (BlockKind::MediumGrass, 0),
+                    make_model("voxygen.voxel.sprite.grass.grass_med_1"),
+                ),
+                (
+                    (BlockKind::MediumGrass, 1),
+                    make_model("voxygen.voxel.sprite.grass.grass_med_2"),
+                ),
+                (
+                    (BlockKind::MediumGrass, 2),
+                    make_model("voxygen.voxel.sprite.grass.grass_med_3"),
+                ),
+                (
+                    (BlockKind::MediumGrass, 3),
+                    make_model("voxygen.voxel.sprite.grass.grass_med_4"),
+                ),
+                (
+                    (BlockKind::MediumGrass, 4),
+                    make_model("voxygen.voxel.sprite.grass.grass_med_5"),
+                ),
+                (
+                    (BlockKind::ShortGrass, 0),
+                    make_model("voxygen.voxel.sprite.grass.grass_short_1"),
+                ),
+                (
+                    (BlockKind::ShortGrass, 1),
+                    make_model("voxygen.voxel.sprite.grass.grass_short_2"),
+                ),
+                (
+                    (BlockKind::ShortGrass, 2),
+                    make_model("voxygen.voxel.sprite.grass.grass_short_3"),
+                ),
+                (
+                    (BlockKind::ShortGrass, 3),
+                    make_model("voxygen.voxel.sprite.grass.grass_short_3"),
+                ),
+                (
+                    (BlockKind::ShortGrass, 4),
+                    make_model("voxygen.voxel.sprite.grass.grass_short_5"),
+                ),
+            ]
+            .into_iter()
+            .collect(),
         }
     }
 
@@ -275,6 +519,18 @@ impl Terrain {
                             fluid_model: renderer
                                 .create_model(&response.fluid_mesh)
                                 .expect("Failed to upload chunk mesh to the GPU!"),
+                            sprite_instances: response
+                                .sprite_instances
+                                .into_iter()
+                                .map(|(kind, instances)| {
+                                    (
+                                        kind,
+                                        renderer.create_instances(&instances).expect(
+                                            "Failed to upload chunk sprite instances to the GPU!",
+                                        ),
+                                    )
+                                })
+                                .collect(),
                             locals: renderer
                                 .create_consts(&[TerrainLocals {
                                     model_offs: Vec3::from(
@@ -343,18 +599,37 @@ impl Terrain {
         renderer: &mut Renderer,
         globals: &Consts<Globals>,
         lights: &Consts<Light>,
+        focus_pos: Vec3<f32>,
     ) {
         // Opaque
-        for (_pos, chunk) in &self.chunks {
+        for (_, chunk) in &self.chunks {
             if chunk.visible {
                 renderer.render_terrain_chunk(&chunk.opaque_model, globals, &chunk.locals, lights);
             }
         }
 
         // Translucent
-        for (_pos, chunk) in &self.chunks {
+        for (pos, chunk) in &self.chunks {
             if chunk.visible {
                 renderer.render_fluid_chunk(&chunk.fluid_model, globals, &chunk.locals, lights);
+
+                const SPRITE_RENDER_DISTANCE: f32 = 128.0;
+
+                let chunk_center = pos.map2(Vec2::from(TerrainChunkSize::SIZE), |e, sz: u32| {
+                    (e as f32 + 0.5) * sz as f32
+                });
+                if Vec2::from(focus_pos).distance_squared(chunk_center)
+                    < SPRITE_RENDER_DISTANCE * SPRITE_RENDER_DISTANCE
+                {
+                    for (kind, instances) in &chunk.sprite_instances {
+                        renderer.render_sprites(
+                            &self.sprite_models[&kind],
+                            globals,
+                            &instances,
+                            lights,
+                        );
+                    }
+                }
             }
         }
     }

world/src/block/mod.rs

@@ -148,11 +148,13 @@ impl<'a> BlockGen<'a> {
             //close_structures,
             cave_xy,
             cave_alt,
+            marble,
+            marble_small,
             rock,
             //cliffs,
             cliff_hill,
             close_cliffs,
-            //temp,
+            temp,
             ..
         } = &z_cache?.sample;
 
@@ -254,6 +256,49 @@ impl<'a> BlockGen<'a> {
                 BlockKind::Normal,
                 saturate_srgb(col, 0.45).map(|e| (e * 255.0) as u8),
             ))
+        } else if (wposf.z as f32) < height + 0.9
+            && temp < CONFIG.desert_temp
+            && (wposf.z as f32 > water_height + 3.0)
+            && marble > 0.68
+            && marble_small > 0.65
+            && (marble * 3173.7).fract() < 0.5
+        {
+            let flowers = [
+                BlockKind::BlueFlower,
+                BlockKind::PinkFlower,
+                BlockKind::PurpleFlower,
+                BlockKind::RedFlower,
+                BlockKind::WhiteFlower,
+                BlockKind::YellowFlower,
+                BlockKind::Sunflower,
+            ];
+
+            let grasses = [
+                BlockKind::LongGrass,
+                BlockKind::MediumGrass,
+                BlockKind::ShortGrass,
+            ];
+
+            Some(Block::new(
+                if (height * 1271.0).fract() < 0.15 {
+                    flowers[(height * 0.2) as usize % flowers.len()]
+                } else {
+                    grasses[(height * 0.3) as usize % grasses.len()]
+                },
+                Rgb::broadcast(0),
+            ))
+        } else if (wposf.z as f32) < height + 0.9
+            && temp > CONFIG.desert_temp
+            && (marble * 4423.5).fract() < 0.0005
+        {
+            Some(Block::new(
+                if (height * 1271.0).fract() < 0.5 {
+                    BlockKind::LargeCactus
+                } else {
+                    BlockKind::BarrelCactus
+                },
+                Rgb::broadcast(0),
+            ))
         } else {
             None
         };
@@ -504,11 +549,7 @@ fn block_from_structure(
             )
             .map(|e| e as u8),
         )),
-        StructureBlock::Fruit => Some(Block::new(
-            BlockKind::Normal,
-            Lerp::lerp(Rgb::new(237.0, 0.0, 0.0), Rgb::new(200.0, 237.0, 0.0), lerp)
-                .map(|e| e as u8),
-        )),
+        StructureBlock::Fruit => Some(Block::new(BlockKind::Apple, Rgb::new(194, 30, 37))),
         StructureBlock::Hollow => Some(Block::empty()),
         StructureBlock::Normal(color) => {
             Some(Block::new(default_kind, color)).filter(|block| !block.is_empty())

world/src/block/natural.rs

@@ -366,11 +366,11 @@ lazy_static! {
     pub static ref FRUIT_TREES: Vec<Arc<Structure>> = vec![
         // fruit trees
         st_asset("world.tree.fruit.1", (5, 5, 7)),
-        st_asset("world.tree.fruit.2", (5, 5, 7)),
-        st_asset("world.tree.fruit.3", (5, 5, 7)),
-        st_asset("world.tree.fruit.4", (5, 5, 7)),
-        st_asset("world.tree.fruit.5", (5, 5, 7)),
-        st_asset("world.tree.fruit.6", (5, 5, 7)),
+        st_asset("world.tree.fruit.2", (6, 6, 7)),
+        st_asset("world.tree.fruit.3", (6, 7, 7)),
+        st_asset("world.tree.fruit.4", (3, 3, 7)),
+        st_asset("world.tree.fruit.5", (6, 8, 7)),
+        st_asset("world.tree.fruit.6", (7, 7, 7)),
     ];
 
         /*

world/src/column/mod.rs

@@ -359,6 +359,8 @@ impl<'a> Sampler for ColumnGen<'a> {
             close_structures: self.gen_close_structures(wpos),
             cave_xy,
             cave_alt,
+            marble,
+            marble_small,
             rock,
             is_cliffs,
             near_cliffs,
@@ -384,6 +386,8 @@ pub struct ColumnSample<'a> {
     pub close_structures: [Option<StructureData>; 9],
     pub cave_xy: f32,
     pub cave_alt: f32,
+    pub marble: f32,
+    pub marble_small: f32,
     pub rock: f32,
     pub is_cliffs: bool,
     pub near_cliffs: bool,