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dynamic uniforms now actually work!

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This commit is contained in:
Carter Anderson 2020-01-27 01:40:53 -08:00
parent 36568d91d2
commit be2a3659c7
2 changed files with 33 additions and 24 deletions
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19
examples/simple_new_graph.rs
View file

@ -2,7 +2,20 @@ use bevy::prelude::*;
use bevy::render::render_graph_2::{StandardMaterial, ShaderUniforms, uniform_selector};
fn main() {
AppBuilder::new().add_defaults().setup_world(setup).run();
AppBuilder::new().add_defaults().add_system(build_move_system()).setup_world(setup).run();
}
fn build_move_system() -> Box<dyn Schedulable> {
SystemBuilder::new("Move")
.read_resource::<Time>()
.with_query(<(Write<Translation>, Write<StandardMaterial>)>::query())
.build(move |_, world, time, person_query| {
for (mut translation, mut material) in person_query.iter_mut(world) {
translation.0 += math::vec3(1.0, 0.0, 0.0) * time.delta_seconds;
material.albedo = material.albedo + math::vec4(-time.delta_seconds, -time.delta_seconds, time.delta_seconds, 0.0);
println!("{}", translation.0);
}
})
}
fn setup(world: &mut World) {
@ -19,8 +32,8 @@ fn setup(world: &mut World) {
indices.insert("Object".to_string(), 0);
let mut indices_2 = std::collections::HashMap::new();
indices_2.insert("StandardMaterial".to_string(), 16);
indices_2.insert("Object".to_string(), 64);
indices_2.insert("StandardMaterial".to_string(), 256);
indices_2.insert("Object".to_string(), 256);
world.build()
// plane

38
src/render/render_graph_2/wgpu_renderer.rs
View file

@ -361,8 +361,8 @@ impl WgpuRenderer {
for pipeline in render_graph.pipeline_descriptors.values() {
for bind_group in pipeline.pipeline_layout.bind_groups.iter() {
for binding in bind_group.bindings.iter() {
if let None = self.resource_info.get(&binding.name) {
if let BindType::Uniform { .. } = &binding.bind_type {
// if let None = self.resource_info.get(&binding.name) {
if let BindType::Uniform { dynamic: true, .. } = &binding.bind_type {
if dynamic_uniform_info.contains_key(&binding.name) {
continue;
}
@ -372,7 +372,7 @@ impl WgpuRenderer {
count: 0,
});
}
}
// }
}
}
}
@ -382,26 +382,34 @@ impl WgpuRenderer {
for (entity, shader_uniforms) in <Read<ShaderUniforms>>::query().iter_entities(world) {
if let Some(_) = shader_uniforms.get_uniform_info(world, entity, name) {
info.count += 1;
// TODO: assign indices to shader_uniforms here
}
}
}
// allocate uniform buffers
for (name, info) in dynamic_uniform_info.iter() {
// TODO: maybe align to device
let size = info.size * info.count;
let size = wgpu::BIND_BUFFER_ALIGNMENT * info.count;
println!("{} {} {}", name, info.size, info.count);
if self.buffers.contains_key(name) {
continue;
}
self.create_buffer(name, size, wgpu::BufferUsage::COPY_DST | wgpu::BufferUsage::UNIFORM);
}
// copy entity uniform data to buffers
for (name, info) in dynamic_uniform_info.iter_mut() {
let size = info.size * info.count;
let mut current_index = 0;
let size = wgpu::BIND_BUFFER_ALIGNMENT * info.count;
let mapped = self.device.create_buffer_mapped(size as usize, wgpu::BufferUsage::COPY_SRC);
for ((entity, shader_uniforms), slot) in <Read<ShaderUniforms>>::query().iter_entities(world).zip(mapped.data.chunks_exact_mut(info.size as usize)) {
for ((entity, shader_uniforms), slot) in <Read<ShaderUniforms>>::query().iter_entities(world).zip(mapped.data.chunks_exact_mut(wgpu::BIND_BUFFER_ALIGNMENT as usize)) {
if let Some(bytes) = shader_uniforms.get_uniform_bytes(world, entity, name) {
slot.copy_from_slice(bytes.as_slice());
// TODO: make this zero-copy somehow
let mut new_bytes = bytes.clone();
while new_bytes.len() < (wgpu::BIND_BUFFER_ALIGNMENT as usize) {
new_bytes.push(0);
}
slot.copy_from_slice(new_bytes.as_slice());
}
}
@ -485,18 +493,6 @@ impl Renderer for WgpuRenderer {
// create bind groups
for bind_group in pipeline_descriptor.pipeline_layout.bind_groups.iter() {
self.setup_bind_group(bind_group);
// TODO: Move this out of the for loop
// copy entity ShaderUniforms to buffers
// let shader_uniform_query = <Read<ShaderUniforms>>::query();
// for (entity, shader_uniforms) in shader_uniform_query.iter_entities(world) {
// self.setup_entity_shader_uniforms(
// bind_group,
// world,
// entity,
// &&*shader_uniforms,
// &mut encoder,
// );
// }
}
}