bevy/src/render/pipeline/pipelines/forward/mod.rs
2020-03-26 23:40:25 -07:00

63 lines
2.6 KiB
Rust

use crate::render::{
pipeline::state_descriptors::{
BlendDescriptor, BlendFactor, BlendOperation, ColorStateDescriptor, ColorWrite,
CompareFunction, CullMode, DepthStencilStateDescriptor, FrontFace,
RasterizationStateDescriptor, StencilStateFaceDescriptor,
},
render_graph::RenderGraphBuilder,
render_resource::resource_name,
shader::{Shader, ShaderStage},
texture::TextureFormat,
};
pub trait ForwardPipelineBuilder {
fn add_forward_pipeline(&mut self) -> &mut Self;
}
impl<'a> ForwardPipelineBuilder for RenderGraphBuilder<'a> {
fn add_forward_pipeline(&mut self) -> &mut Self {
self.add_pipeline(resource_name::pipeline::FORWARD, |builder| {
builder
.with_vertex_shader(Shader::from_glsl(
ShaderStage::Vertex,
include_str!("forward.vert"),
))
.with_fragment_shader(Shader::from_glsl(
ShaderStage::Fragment,
include_str!("forward.frag"),
))
.with_rasterization_state(RasterizationStateDescriptor {
front_face: FrontFace::Ccw,
cull_mode: CullMode::Back,
depth_bias: 0,
depth_bias_slope_scale: 0.0,
depth_bias_clamp: 0.0,
})
.with_depth_stencil_state(DepthStencilStateDescriptor {
format: TextureFormat::Depth32Float,
depth_write_enabled: true,
depth_compare: CompareFunction::Less,
stencil_front: StencilStateFaceDescriptor::IGNORE,
stencil_back: StencilStateFaceDescriptor::IGNORE,
stencil_read_mask: 0,
stencil_write_mask: 0,
})
.add_color_state(ColorStateDescriptor {
format: TextureFormat::Bgra8UnormSrgb,
color_blend: BlendDescriptor {
src_factor: BlendFactor::SrcAlpha,
dst_factor: BlendFactor::OneMinusSrcAlpha,
operation: BlendOperation::Add,
},
alpha_blend: BlendDescriptor {
src_factor: BlendFactor::One,
dst_factor: BlendFactor::One,
operation: BlendOperation::Add,
},
write_mask: ColorWrite::ALL,
})
.add_draw_target(resource_name::draw_target::ASSIGNED_MESHES);
// .add_draw_target(resource_name::draw_target::ASSIGNED_BATCHES);
})
}
}