Safe OpenGL wrapper for the Rust language
Questions tagged [glium]
30 questions
21
votes
3 answers
How to import macros in Rust?
I'm struggling with how to import macros from an external crate. In my main.rs I'm importing the Glium crate:
#![macro_use]
extern crate glium;
pub use glium::*;
// where my actual main function will be done from
mod part01drawtriangle;
fn main()…
Adityo Pratomo
- 253
- 1
- 2
- 7
8
votes
1 answer
unconstrained type parameter error
I'm trying to interface glium with cgmath. Following this answer, I have implemented a ToArray trait to convert instances of cgmath::Matrix4 into a format usable by glium:
pub trait ToArray {
type Output;
fn to_array(&self) ->…
Jmb
- 18,893
- 2
- 28
- 55
6
votes
1 answer
How can I use a cgmath::Matrix as a uniform parameter in glium?
I'm trying to integrate the cgmath library into my first experiments with glium, but I can't figure out how to pass my Matrix4 object to the draw() call.
My uniforms object is defined thus:
let uniforms = uniform! {
matrix:…
JPNotADragon
- 2,050
- 2
- 25
- 31
5
votes
1 answer
Passing an arbitrarily sized object to a fragment shader using a UniformBuffer in Glium
My question came up while experimenting with a bunch of different techniques, none of which I have much experience with. Sadly, I don't even know whether I'm making a silly logic mistake, whether I'm using the glium crate wrong, whether I'm messing…
Thierry
- 1,099
- 9
- 19
3
votes
0 answers
Is there any way to pass an array to a shader in glium?
I tried to do this with a uniform-block:
Rust:
#[derive(Copy, Clone)]
struct Circle {
position: (f32, f32),
radius: u32,
_padding: u32,
}
#[derive(Copy, Clone)]
struct UniformBlock {
map: [Circle;…
aitvann
- 1,289
- 2
- 8
- 10
3
votes
1 answer
Avoiding dropped frames in glium
I'm using glium as my opengl bindings, but it's impossible to get a reliable 60 FPS.
A minimal testcase is
#[macro_use]
extern crate glium;
extern crate clock_ticks;
use glium::Surface;
use glium::glutin;
fn main() {
use glium::DisplayBuild;
…
Johannes Hoff
- 3,731
- 5
- 31
- 37
2
votes
1 answer
How to get the width and the height in glium?
I'm using glium in Rust. I want to get the width and the height.
I can't write and understand English well, because I'm Japanese. Maybe my English has some problems so I'm sorry.
javaboy
- 85
- 7
2
votes
1 answer
How to draw OpenGL triangle from other thread in Rust
I'm learning OpenGL is Rust by this example: https://github.com/glium/glium/blob/84f82d3098fbc75aa22160b47bf0a2bdada01f07/examples/triangle.rs#L141
It uses a window wrapper called glutin, and draws the triangle once like this:
let draw = move || {
…
Guerlando OCs
- 1,886
- 9
- 61
- 150
1
vote
1 answer
How to light all faces of rotating cube using glium
I made rotating cube using glium, but only one face is colored.
I am using Gouraud shading(from glium tutorial) for lighting.
The cube is made by defined 24 vertices and 6 normals.
Rotation is made by two matrices:
let m = [
…
matej.tydli
- 57
- 8
1
vote
2 answers
Vector of tuples with different size
I am currenly implementing marching cubes algorithm using Rust and I faced a problem. This algorithm requires using triangulation table which I copied from GitHub. But which data structure in Rust allow us to store such a data?
Those tuples mean…
Fyodor Raevskiy
- 13
- 3
1
vote
2 answers
How can I forcibly pass by value rust without deriving the Clone trait?
I'm new to rust and I'm trying to return a Window struct:
pub struct Window<'a> {
ev_loop: EventLoop<()>,
window_builder: WindowBuilder,
context_builder: ContextBuilder<'a, NotCurrent>,
display: Display
}
from this function:
pub fn…
NaniNoni
- 155
- 11
1
vote
1 answer
How to implement Glium's Backend for Android's SurfaceTexture (Render with Rust into SurfaceTexture)
Rust's glium lib is a nice OpenGL wrapper that facilitate slots of stuff. In order to implement a new backend for it, you must implement https://github.com/glium/glium/blob/cacb970c8ed2e45a6f98d12bd7fcc03748b0e122/src/backend/mod.rs#L36
I want to…
Guerlando OCs
- 1,886
- 9
- 61
- 150
1
vote
0 answers
how do i interpolate keyframes into vectors with structs in Rust?
I started studying Rust and the "Glium" crate to use OpenGL, in the process I was trying to do something I had done before in Python when I needed to animate an asset.
In Python to animate an asset I loaded two frames of the same model in two…
Arthur Sally
- 134
- 1
- 10
1
vote
0 answers
Why glium `Headless` can not render an image like normal window context?
I am working on an off-screen render program and I use crate glium to do this. I have followed the example of screenshot.rs and this example worked well.
Then I made some change:
The orignal code was
fn main() {
// building the display, ie. the…
DWCarrot
- 31
- 2
1
vote
2 answers
Is creating circles from triangles or drawing them with a fragment shader faster?
I use the language Rust and the Glium library. I want to display a large number of circles on the screen, but I can not decide how I'd better do it.
There is an option to create circles from triangles, or I can draw them with a fragment shader,…
aitvann
- 1,289
- 2
- 8
- 10