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examples/testbed/src/main.rs

@@ -69,7 +69,8 @@ async fn main() {
         let mut resman = world.get_resource_mut::<ResourceManager>().unwrap();
         //let diffuse_texture = resman.request::<Texture>("assets/happy-tree.png").unwrap();
         let antique_camera_model = resman.request::<Model>("assets/AntiqueCamera.glb").unwrap();
-        let cube_model = resman.request::<Model>("assets/cube-texture-bin.glb").unwrap();
+        //let cube_model = resman.request::<Model>("assets/cube-texture-bin.glb").unwrap();
+        let cube_model = resman.request::<Model>("assets/texture-sep/texture-sep.gltf").unwrap();
         drop(resman);
 
         /* world.spawn((
@@ -113,6 +114,10 @@ async fn main() {
                 constant: 1.0,
                 linear: 0.045,
                 quadratic: 0.0075,
+                
+                ambient: 0.2,
+                diffuse: 0.5,
+                specular: 1.0,
             },
             TransformComponent::from(light_tran),
             ModelComponent(cube_model),

src/render/light/mod.rs

@@ -1,5 +1,5 @@
 pub mod point;
-use std::{collections::{VecDeque, HashMap}, num::NonZeroU64, marker::PhantomData};
+use std::{collections::{VecDeque, HashMap}, num::{NonZeroU64, NonZeroU32}, marker::PhantomData};
 
 use edict::query::EpochOf;
 pub use point::*;
@@ -10,7 +10,7 @@ use std::mem;
 
 use crate::{math::Transform, ecs::components::TransformComponent};
 
-const MAX_LIGHT_COUNT: usize = 32;
+const MAX_LIGHT_COUNT: usize = 16;
 
 pub struct LightBuffer<U: Default + bytemuck::Pod + bytemuck::Zeroable> {
     _phantom: PhantomData<U>,
@@ -106,7 +106,7 @@ impl LightUniformBuffers {
     pub fn new(device: &wgpu::Device) -> Self {
         let buffer = device.create_buffer(
             &wgpu::BufferDescriptor {
-                label: Some("Lights Uniform buffer"),
+                label: Some("UB_Lights"),
                 usage: wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST,
                 size: (mem::size_of::<LightsUniform>() * MAX_LIGHT_COUNT) as u64,
                 mapped_at_creation: false,
@@ -126,7 +126,7 @@ impl LightUniformBuffers {
                     count: None,
                 }
             ],
-            label: Some("lights_bind_group_layout"),
+            label: Some("BGL_Lights"),
         });
 
         let bindgroup = device.create_bind_group(&wgpu::BindGroupDescriptor {
@@ -143,7 +143,7 @@ impl LightUniformBuffers {
                     )
                 }
             ],
-            label: Some("light_bind_group"),
+            label: Some("BG_Lights"),
         });
 
         let point_lights = LightBuffer::new(&bindgroup_layout, MAX_LIGHT_COUNT);
@@ -199,6 +199,12 @@ pub struct PointLightUniform {
     pub linear: f32,
     /// The quadratic factor used in the quadratic attenuation calculation.
     pub quadratic: f32,
+
+    pub ambient: f32,
+    pub diffuse: f32,
+    pub specular: f32,
+
+    pub _padding: u32,
 }
 
 impl PointLightUniform {
@@ -213,6 +219,12 @@ impl PointLightUniform {
             constant: light.constant,
             linear: light.linear,
             quadratic: light.quadratic,
+
+            ambient: light.ambient,
+            diffuse: light.diffuse,
+            specular: light.specular,
+
+            _padding: 0,
         }
     }
 }

src/render/light/point.rs

@@ -6,4 +6,7 @@ pub struct PointLight {
     pub constant: f32,
     pub linear: f32,
     pub quadratic: f32,
+    pub ambient: f32,
+    pub diffuse: f32,
+    pub specular: f32,
 }

src/render/material.rs

@@ -25,3 +25,33 @@ impl Material {
         }
     }
 }
+
+#[repr(C)]
+#[derive(Copy, Clone, Debug, Default, bytemuck::Pod, bytemuck::Zeroable)]
+pub struct MaterialUniform {
+    pub ambient: glam::Vec4,
+    //pub _padding: u32,
+    pub diffuse: glam::Vec4,
+    //pub _padding2: u32,
+    pub specular: glam::Vec4,
+    //pub _padding3: u32,
+    pub shininess: f32,
+    pub _padding1: [u32; 3],
+}
+
+impl From<&Material> for MaterialUniform {
+    fn from(value: &Material) -> Self {
+        Self {
+            ambient: glam::Vec4::new(value.ambient.x, value.ambient.y, value.ambient.z, 0.0),
+            diffuse: glam::Vec4::new(value.diffuse.x, value.diffuse.y, value.diffuse.z, 0.0),
+            specular: glam::Vec4::new(value.specular.x, value.specular.y, value.specular.z, 0.0),
+            shininess: value.shininess,
+            _padding1: [0; 3]
+
+            /* _padding: 0,
+            _padding2: 0,
+            _padding3: 0,
+            _padding4: [0; 3], */
+        }
+    }
+}

src/render/render_buffer.rs

@@ -1,3 +1,7 @@
+use std::{sync::Arc, num::NonZeroU32};
+
+use wgpu::util::DeviceExt;
+
 use super::{desc_buf_lay::DescVertexBufferLayout, vertex::Vertex};
 
 #[allow(dead_code)]
@@ -17,6 +21,215 @@ impl RenderBuffer {
     }
 }
 
+pub struct BindGroupPair {
+    pub bindgroup: wgpu::BindGroup,
+    pub layout: Arc<wgpu::BindGroupLayout>,
+}
+
+impl BindGroupPair {
+    pub fn new_from_layout(device: &wgpu::Device, layout: Arc<wgpu::BindGroupLayout>, entries: &[wgpu::BindGroupEntry<'_>]) -> Self {
+        let bindgroup = device.create_bind_group(&wgpu::BindGroupDescriptor {
+            layout: layout.as_ref(),
+            entries,
+            label: None,
+        });
+
+        Self {
+            bindgroup,
+            layout,
+        }
+    }
+}
+
+pub struct BufferWrapper {
+    pub bindgroup_pair: Option<BindGroupPair>,
+    pub inner_buf: wgpu::Buffer,
+    pub len: usize,
+}
+
+impl BufferWrapper {
+    pub fn new_init(device: &wgpu::Device, descriptor: &wgpu::util::BufferInitDescriptor<'_>, bind_group: Option<BindGroupPair>) -> Self {
+        let buffer = device.create_buffer_init(descriptor);
+
+        Self {
+            bindgroup_pair: bind_group,
+            inner_buf: buffer,
+            len: 0,
+        }
+    }
+
+    pub fn new(device: &wgpu::Device, descriptor: &wgpu::BufferDescriptor<'_>, bind_group: Option<BindGroupPair>) -> Self {
+        let buffer = device.create_buffer(descriptor);
+
+        Self {
+            bindgroup_pair: bind_group,
+            inner_buf: buffer,
+            len: 0,
+        }
+    }
+
+    pub fn builder() -> BufferWrapperBuilder {
+        BufferWrapperBuilder::new()
+    }
+}
+
+#[derive(Default)]
+pub struct BufferWrapperBuilder {
+    buffer_usage: Option<wgpu::BufferUsages>,
+    buffer_dynamic_offset: bool, // default false
+    label_prefix: Option<String>,
+    contents: Option<Vec<u8>>,
+    count: Option<u32>,
+    size: Option<u64>,
+    bind_group_pair: Option<BindGroupPair>,
+    bind_group_visibility: Option<wgpu::ShaderStages>,
+}
+
+impl BufferWrapperBuilder {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn buffer_usage(mut self, usages: wgpu::BufferUsages) -> Self {
+        self.buffer_usage = Some(usages);
+        self
+    }
+
+    pub fn buffer_dynamic_offset(mut self, val: bool) -> Self {
+        self.buffer_dynamic_offset = val;
+        self
+    }
+
+    pub fn visibility(mut self, val: wgpu::ShaderStages) -> Self {
+        self.bind_group_visibility = Some(val);
+        self
+    }
+
+    pub fn bind_group_pair(mut self, pair: BindGroupPair) -> Self {
+        self.bind_group_pair = Some(pair);
+        self
+    }
+
+    pub fn label_prefix(mut self, val: &str) -> Self {
+        self.label_prefix = Some(val.into());
+        self
+    }
+
+    pub fn contents<T>(mut self, val: &[T]) -> Self 
+    where
+        T: bytemuck::NoUninit
+    {
+        self.contents = Some(bytemuck::cast_slice(val).to_vec());
+        self.count = if val.len() > 1 {
+            Some(val.len() as u32)
+        } else { None };
+
+        self
+    }
+
+    pub fn size(mut self, val: usize) -> Self {
+        self.size = Some(val as u64);
+        self
+    }
+
+    fn format_label(&self, prefix: &str) -> Option<String> {
+        match self.label_prefix.as_ref() {
+            Some(v) => Some(format!("{}{}", prefix, v)),
+            None => None
+        }
+    }
+
+    /// Finish building the BufferWrapper
+    /// 
+    /// You must specify a value for `buffer_usage`
+    /// 
+    /// If you did not provide a BindGroupPair with `BufferWrapperBuilder::bind_group_pair`,
+    /// one will be created for the buffer. A value for `visibility` is required.
+    /// You would need to provide `size` or `contents`:
+    /// * `size` - The size (in bytes) of the buffer.
+    /// * `contents` - The contents to initialize the buffer with.
+    /// 
+    /// If a field is missing, a panic will occur.
+    pub fn finish(self, device: &wgpu::Device) -> BufferWrapper {
+        let buf_usage = self.buffer_usage.expect("Buffer usage was not set");
+        let buffer = if let Some(contents) = self.contents.as_ref() {
+            device.create_buffer_init(
+                &wgpu::util::BufferInitDescriptor {
+                    label: self.format_label("B_").as_deref(),
+                    contents: bytemuck::cast_slice(contents.as_slice()),
+                    usage: buf_usage,
+                }
+            )
+        } else {
+            device.create_buffer(
+                &wgpu::BufferDescriptor {
+                    label: self.format_label("B_").as_deref(),
+                    usage: buf_usage,
+                    size: self.size.unwrap(),
+                    mapped_at_creation: false,
+                }
+            )
+        };
+        
+        let bg_pair = match self.bind_group_pair {
+            Some(v) => v,
+            None => {
+                let buffer_ty = {
+                    let val;
+                    if buf_usage.contains(wgpu::BufferUsages::UNIFORM) {
+                        val = wgpu::BufferBindingType::Uniform;
+                    } else if buf_usage.contains(wgpu::BufferUsages::STORAGE) {
+                        val = wgpu::BufferBindingType::Storage { read_only: false }; // TODO: take in to see if its readonly
+                    } else {
+                        panic!("Unknown buffer binding type!");
+                    }
+
+                    val
+                };
+                let bg_layout = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
+                    entries: &[
+                        wgpu::BindGroupLayoutEntry {
+                            binding: 0,
+                            visibility: self.bind_group_visibility.expect("Expected bind_group_visibility to be set!"),
+                            ty: wgpu::BindingType::Buffer {
+                                ty: buffer_ty,
+                                has_dynamic_offset: self.buffer_dynamic_offset,
+                                min_binding_size: None,
+                            },
+                            count: self.count.and_then(|v| NonZeroU32::try_from(v).ok()),
+                        }
+                    ],
+                    label: self.format_label("BGL_").as_deref(),
+                });
+                let bg_layout = Arc::new(bg_layout);
+                
+    
+                let bg = device.create_bind_group(&wgpu::BindGroupDescriptor {
+                    layout: &bg_layout,
+                    entries: &[
+                        wgpu::BindGroupEntry {
+                            binding: 0,
+                            resource: buffer.as_entire_binding(),
+                        }
+                    ],
+                    label: self.format_label("BG_").as_deref(),
+                });
+
+                BindGroupPair {
+                    bindgroup: bg,
+                    layout: bg_layout,
+                }
+            }
+        };
+
+        BufferWrapper {
+            bindgroup_pair: Some(bg_pair),
+            inner_buf: buffer,
+            len: self.count.unwrap_or_default() as usize,
+        }
+    }
+}
+
 #[derive(Debug)]
 pub struct BufferStorage {
     buffer: wgpu::Buffer,

src/render/renderer.rs

@@ -19,11 +19,14 @@ use crate::ecs::components::model::ModelComponent;
 use crate::ecs::components::transform::TransformComponent;
 use crate::math::{Transform, self};
 use crate::render::light::PointLightUniform;
+use crate::render::material::MaterialUniform;
+use crate::render::render_buffer::{BufferWrapperBuilder, BindGroupPair};
 
 use super::camera::{RenderCamera, CameraUniform};
 use super::desc_buf_lay::DescVertexBufferLayout;
 use super::light::{PointLight, LightUniformBuffers};
 use super::material::Material;
+use super::render_buffer::BufferWrapper;
 use super::texture::RenderTexture;
 use super::transform_buffer_storage::{TransformBufferIndices, TransformBuffers};
 use super::vertex::Vertex;
@@ -91,8 +94,7 @@ pub struct BasicRenderer {
     default_texture_bind_group: BindGroup,
     depth_buffer_texture: RenderTexture,
 
-    material_buffer: wgpu::Buffer,
-    material_bind_group: wgpu::BindGroup,
+    material_buffer: BufferWrapper,
 
     light_buffers: LightUniformBuffers,
 }
@@ -127,7 +129,9 @@ impl BasicRenderer {
                 limits: if cfg!(target_arch = "wasm32") {
                     wgpu::Limits::downlevel_webgl2_defaults()
                 } else {
-                    wgpu::Limits::default()
+                    let mut v = wgpu::Limits::default();
+                    v.max_bind_groups = 5;
+                    v
                 },
                 label: None,
             },
@@ -251,6 +255,13 @@ impl BasicRenderer {
 
         let light_uniform_buffers = LightUniformBuffers::new(&device);
 
+        let mat_buffer = BufferWrapperBuilder::new()
+            .buffer_usage(wgpu::BufferUsages::UNIFORM | wgpu::BufferUsages::COPY_DST)
+            .visibility(wgpu::ShaderStages::FRAGMENT)
+            .contents(&[MaterialUniform::default()])
+            //.size(mem::size_of::<MaterialUniform>())
+            .finish(&device);
+
         let mut s = Self {
             window,
             surface,
@@ -282,6 +293,7 @@ impl BasicRenderer {
             entity_last_transforms: HashMap::new(),
 
             light_buffers: light_uniform_buffers,
+            material_buffer: mat_buffer,
         };
 
         // create the default pipelines
@@ -289,7 +301,7 @@ impl BasicRenderer {
         pipelines.insert(0, Arc::new(FullRenderPipeline::new(&s.device, &s.config, &shader, 
             vec![super::vertex::Vertex::desc(),],
             vec![&s.texture_bind_group_layout, &s.transform_buffers.bindgroup_layout, &camera_bind_group_layout,
-            &s.light_buffers.bindgroup_layout])));
+            &s.light_buffers.bindgroup_layout, &s.material_buffer.bindgroup_pair.as_ref().unwrap().layout])));
         s.render_pipelines = pipelines;
 
         s
@@ -384,8 +396,8 @@ impl BasicRenderer {
     fn create_mesh_buffers(&mut self, mesh: &Mesh, transform_indices: TransformBufferIndices) -> MeshBufferStorage {
         let (vertex_buffer, buffer_indices) = self.create_vertex_index_buffers(mesh);
 
+        let material = Material::from_resource(&self.device, &self.queue, &mesh.material());
         let diffuse_bindgroup = if let Some(model_texture) = &mesh.material().base_color_texture {
-            let material = Material::from_resource(&self.device, &self.queue, &mesh.material());
             let diffuse_texture = &material.diffuse_texture;
 
             let diffuse_bind_group = self.device.create_bind_group(
@@ -410,10 +422,15 @@ impl BasicRenderer {
             None
         };
 
+        //let mat = Material::from_resource(&self.device, &self.queue, )
+        let uni = MaterialUniform::from(&material);
+        self.queue.write_buffer(&self.material_buffer.inner_buf, 0, bytemuck::bytes_of(&uni));
+        debug!("Wrote material to buffer");
+
         MeshBufferStorage {
             buffer_vertex: vertex_buffer,
             buffer_indices,
-            material: None,
+            material: Some(material),
             texture_bindgroup: diffuse_bindgroup,
         }
     }
@@ -427,6 +444,9 @@ impl BasicRenderer {
         let indices = self.transform_buffers.update_or_insert(&self.queue, &self.render_limits,
             entity, || ( transform.calculate_mat4(), glam::Mat3::from_quat(transform.rotation) ));
 
+        //let mat = Material::from_resource(&self.device, &self.queue, )
+        //self.queue.write_buffer(&self.material_buffer.inner_buf, 0, bytemuck::bytes_of(t))
+
         #[allow(clippy::map_entry)]
         if !self.mesh_buffers.contains_key(&mesh.uuid) {
             // create the mesh's buffers
@@ -587,6 +607,8 @@ impl Renderer for BasicRenderer {
                     // bind light
                     //render_pass.set_bind_group(3, &self.point_light_bind_group, &[]);
                     render_pass.set_bind_group(3, &self.light_buffers.bindgroup, &[]);
+
+                    render_pass.set_bind_group(4, &self.material_buffer.bindgroup_pair.as_ref().unwrap().bindgroup, &[]);
                     ////self.light_buffers.bind_lights(&mut render_pass, 3);
 
         

src/render/shaders/base.wgsl

@@ -1,6 +1,6 @@
 // Vertex shader
 
-const max_light_count: u32 = 32u;
+const max_light_count: u32 = 16u;
 
 struct VertexInput {
     @location(0) position: vec3<f32>,
@@ -23,10 +23,15 @@ struct CameraUniform {
 struct PointLight {
     position: vec4<f32>,
     color: vec4<f32>,
+    
     intensity: f32,
     constant: f32,
     linear: f32,
     quadratic: f32,
+    
+    ambient: f32,
+    diffuse: f32,
+    specular: f32,
 };
 
 struct Lights {
@@ -65,9 +70,9 @@ fn vs_main(
 // Fragment shader
 
 struct Material {
-    ambient: vec3<f32>,
-    diffuse: vec3<f32>,
-    specular: vec3<f32>,
+    ambient: vec4<f32>,
+    diffuse: vec4<f32>,
+    specular: vec4<f32>,
     shininess: f32,
 }
 
@@ -77,7 +82,7 @@ var t_diffuse: texture_2d<f32>;
 var s_diffuse: sampler;
 
 @group(4) @binding(0)
-var u_material: Material;
+var<uniform> u_material: Material;
 
 @fragment
 fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
@@ -99,13 +104,13 @@ fn blinn_phong_point_light(world_pos: vec3<f32>, world_norm: vec3<f32>, point_li
 
     // We don't need (or want) much ambient light, so 0.1 is fine
     //let ambient_strength = 0.1;
-    var ambient_color = light_color * material.ambient;
+    var ambient_color = light_color * material.ambient.xyz;
 
     //// diffuse ////
     let light_dir = normalize(light_pos - world_pos);
 
     let diffuse_strength = max(dot(world_norm, light_dir), 0.0);
-    var diffuse_color = light_color * (diffuse_strength * material.diffuse);
+    var diffuse_color = light_color * (diffuse_strength * material.diffuse.xyz);
     //// end of diffuse ////
 
     //// specular ////
@@ -113,7 +118,7 @@ fn blinn_phong_point_light(world_pos: vec3<f32>, world_norm: vec3<f32>, point_li
     let half_dir = normalize(view_dir + light_dir);
 
     let specular_strength = pow(max(dot(world_norm, half_dir), 0.0), material.shininess);
-    var specular_color = specular_strength * (light_color * material.specular);
+    var specular_color = specular_strength * (light_color * material.specular.xyz);
     //// end of specular ////
 
     //// point light attenuation ////
@@ -121,9 +126,9 @@ fn blinn_phong_point_light(world_pos: vec3<f32>, world_norm: vec3<f32>, point_li
     let attenuation = 1.0 / (point_light.constant + point_light.linear * distance + 
     	point_light.quadratic * (distance * distance));
 
-    ambient_color *= attenuation * point_light.intensity;
-    diffuse_color *= attenuation * point_light.intensity;
-    specular_color *= attenuation * point_light.intensity;
+    ambient_color *= attenuation * point_light.intensity * point_light.ambient;
+    diffuse_color *= attenuation * point_light.intensity * point_light.diffuse;
+    specular_color *= attenuation * point_light.intensity * point_light.specular;
     //// end of point light attenuation ////
 
     return (ambient_color + diffuse_color + specular_color);