black triangle for platformer binary

good god this is ugly code
main
_ 2021-12-18 21:19:11 +00:00
parent 6fbddb3c86
commit 116fd3bc45
3 changed files with 246 additions and 10 deletions

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@ -2,7 +2,7 @@
name = "opengl_rust"
version = "0.1.0"
authors = ["_"]
edition = "2018"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

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@ -1,6 +1,96 @@
use opengl_rust::prelude::*;
use std::{
collections::HashMap,
};
use anyhow::Result;
use maplit::hashmap;
use opengl_rust::{
prelude::*,
gl_state::*,
renderable_model::{
attributes,
RenderableModel,
},
shader_closure::ShaderLookup,
texture::Texture,
};
mod uniforms {
use iota::iota;
iota! {
pub const
MVP: u32 = iota;
, OBJECT_SPACE_LIGHT
, OBJECT_SPACE_SKY
, ALBEDO
, MIN_ALBEDO
, MIN_BRIGHT
, TEXTURE
}
}
struct GameGraphics {
passes: Vec <Pass>,
shaders: Vec <ShaderClosure>,
shader_lookup: HashMap <u32, usize>,
mesh_cube: RenderableModel,
mesh_sky: RenderableModel,
text_stream: TriangleStream,
texture_sky: Texture,
}
impl ShaderLookup for GameGraphics {
fn lookup <'a> (&'a self, id: u32) -> &'a ShaderClosure {
&self.shaders [self.shader_lookup [&id]]
}
}
impl GameGraphics {
fn draw (
&self,
gl_state: &mut GlState,
) {
use uniforms as u;
let white = color_from_255 ((255.0, 255.0, 255.0));
let black = color_from_255 ((0.0, 0.0, 0.0));
let screen_size = (1280.0, 720.0);
let proj_mat = Mat4::perspective_rh_gl (30.0f32.to_radians (), screen_size.0 / screen_size.1, 0.125, 200.0);
let view_mat = proj_mat * Mat4::from_rotation_x (-90.0f32.to_radians ());
let world_model_mat = Mat4::IDENTITY;
self.passes [0].with (gl_state, || {
glezz::clear_color (1.0f32, 0.0f32, 1.0f32, 1.0f32);
glezz::clear (gl::COLOR_BUFFER_BIT | gl::DEPTH_BUFFER_BIT | gl::STENCIL_BUFFER_BIT);
});
self.passes [1].with_shader (gl_state, self, |shader_vars| {
let attrs = shader_vars.attrs;
let unis = shader_vars.unis;
{
let sky_mvp_mat = view_mat * Mat4::from_scale ((64.0, 64.0, 64.0).into ());
self.texture_sky.bind ();
glezz::uniform_matrix_4fv (unis [&u::MVP], &sky_mvp_mat);
glezz::uniform_3fv (unis [&u::ALBEDO], &white);
glezz::uniform_3fv (unis [&u::MIN_BRIGHT], &white);
glezz::uniform_3fv (unis [&u::MIN_ALBEDO], &black);
glezz::uniform_1i (unis [&u::TEXTURE], 0);
self.mesh_sky.draw_all (attrs, |_| true);
}
});
}
}
#[tokio::main]
async fn main () -> Result <()> {
@ -29,10 +119,140 @@ async fn main () -> Result <()> {
let mut time_step = TimeStep::new (60, 1000);
let mut graphics_frames = 0;
let shader_program = shader::shader_from_files ("shaders/terrain-vert.glsl", "shaders/terrain-frag.glsl");
let shader_locations = ShaderLocations::new (&shader_program)?;
let uniform_names = {
vec! [
(uniforms::MVP, "uni_mvp"),
(uniforms::OBJECT_SPACE_LIGHT, "uni_object_space_light"),
(uniforms::OBJECT_SPACE_SKY, "uni_object_space_sky"),
(uniforms::ALBEDO, "uni_albedo"),
(uniforms::MIN_ALBEDO, "uni_min_albedo"),
(uniforms::MIN_BRIGHT, "uni_min_bright"),
(uniforms::TEXTURE, "uni_texture"),
]
};
let attr_names = {
vec! [
(attributes::POS, "attr_pos"),
(attributes::UV, "attr_uv"),
(attributes::NORMAL, "attr_normal"),
]
};
let shaders: Vec <_> = [
("shaders/pumpkin-vert.glsl", "shaders/pumpkin-frag.glsl"),
("shaders/shadow-vert.glsl", "shaders/shadow-frag.glsl"),
("shaders/terrain-vert.glsl", "shaders/terrain-frag.glsl"),
].into_iter ()
.map (|(v, f)| {
ShaderClosure::new (shader_from_files (v, f), &uniform_names, &attr_names)
})
.collect ();
let mesh_cube = renderable_from_iqm_file ("cube.iqm");
let mesh_sky = renderable_from_iqm_file ("sky-sphere.iqm");
let passes = vec![
// Clear everything
Pass {
iso: IsoGlState {
shader_id: None,
flags: Default::default (),
front_face: None,
stencil: None,
depth_func: None,
color_mask: Some ((1, 1, 1, 1)),
depth_mask: Some (1),
stencil_mask: Some (255),
},
},
// Draw world
Pass {
iso: IsoGlState {
shader_id: Some (shaders [0].get_id ()),
flags: hashmap! {
gl::CULL_FACE => true,
gl::DEPTH_TEST => true,
gl::TEXTURE_2D => true,
gl::STENCIL_TEST => false,
},
front_face: Some (FrontFace::Cw),
stencil: Some (StencilState {
func: StencilFuncState {
func: StencilFunc::Always,
reference: 0,
mask: 0,
},
op: StencilOpState {
sfail: StencilOp::Keep,
dpfail: StencilOp::Keep,
dppass: StencilOp::Keep,
},
}),
depth_func: Some (DepthFunc::Less),
color_mask: Some ((1, 1, 1, 1)),
depth_mask: Some (1),
stencil_mask: Some (0),
},
},
// Draw UI
Pass {
iso: IsoGlState {
shader_id: Some (shaders [0].get_id ()),
flags: hashmap! {
gl::CULL_FACE => false,
gl::DEPTH_TEST => false,
gl::TEXTURE_2D => true,
gl::STENCIL_TEST => false,
},
front_face: None,
stencil: None,
depth_func: Some (DepthFunc::Less),
color_mask: Some ((1, 1, 1, 1)),
depth_mask: Some (1),
stencil_mask: Some (0),
},
},
];
let text_stream = TriangleStream {
verts: gpu_buffers::VertexBuffer::streaming (4 * 5 * 6 * 1024),
indices: {
let quad = [
0, 1, 2,
0, 2, 3,
];
let v: Vec <u32> = (0u32..1024).map (|i| {
quad.iter ().map (move |j| 4 * i + j)
}).flatten ().collect ();
gpu_buffers::IndexBuffer::from_slice_u32 (&v)
}
};
let shader_lookup = HashMap::from_iter (shaders.iter ().enumerate ()
.map (|(i, s)| {
(s.get_id (), i)
}));
shaders [0].with (None, |shader_vars| {
let attrs = shader_vars.attrs;
glezz::enable_vertex_attrib_array (attrs [attributes::POS]);
glezz::enable_vertex_attrib_array (attrs [attributes::UV]);
glezz::enable_vertex_attrib_array (attrs [attributes::NORMAL]);
});
let graphics = GameGraphics {
mesh_cube,
mesh_sky,
passes,
shader_lookup,
shaders,
text_stream,
texture_sky: Texture::from_file ("sky.png"),
};
let mut gl_state = Default::default ();
'running: loop {
let _frames_to_do = time_step.step ();
@ -49,12 +269,10 @@ async fn main () -> Result <()> {
window.gl_make_current (&gl_ctx).unwrap ();
glezz::enable (gl::DEPTH_TEST);
glezz::clear_color (0.392f32, 0.710f32, 0.965f32, 1.0f32);
glezz::clear (gl::COLOR_BUFFER_BIT | gl::DEPTH_BUFFER_BIT | gl::STENCIL_BUFFER_BIT);
graphics.draw (&mut gl_state);
window.gl_swap_window ();
graphics_frames += 1;
tokio::time::sleep (Duration::from_millis (15)).await;
}
@ -70,7 +288,7 @@ struct ShaderLocations {
}
impl ShaderLocations {
pub fn new (shader_program: &shader::ShaderProgram) -> anyhow::Result <Self>
pub fn new (shader_program: &opengl_rust::shader::ShaderProgram) -> anyhow::Result <Self>
{
let attr = |name: &str| shader_program.get_attribute_location (&CString::new (name.as_bytes ())?).try_into ().context ("Attribute location negative");
let uni = |name: &str| shader_program.get_uniform_location (&CString::new (name.as_bytes ())?).try_into ().context ("Uniform location bad");
@ -83,3 +301,20 @@ impl ShaderLocations {
})
}
}
struct TriangleStream {
pub verts: gpu_buffers::VertexBuffer,
pub indices: gpu_buffers::IndexBuffer,
}
fn color_from_255 <V> (rgb: V) -> Vec3
where V: Into <Vec3>
{
let rgb: Vec3 = rgb.into ();
Vec3::from ((
rgb.x / 255.0,
rgb.y / 255.0,
rgb.z / 255.0
))
}

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@ -31,6 +31,7 @@ pub use crate::{
network_protocol::*,
quinn_common::make_client_endpoint,
renderable_model::renderable_from_iqm_file,
shader,
shader::shader_from_files,
shader_closure::ShaderClosure,
timestep::TimeStep,
};