(as per this line https://github.com/tomaka/glium/blob/master/src/vertex/format.rs#L11 )
oh, seems nalgebra and cgmath support was removed as per this commit tomaka/glium@d08048f
I'm having an odd problem using glium that I'm curious if anyone else has seen. My program runs fine on Windows, and the example programs run fine on my mac, but when I run my program on the mac there's no window that appears and I can't get glium to give me any sort of useful debug info.
@tomaka Do you still think that Rust needs a better math library? See https://www.reddit.com/r/rust_gamedev/comments/4pa35k/is_there_value_in_creating_a_new_math_library/
(aside from monotonously filling the index buffer with the regular [idx++, idx++, idx--, idx++, idx++, idx++] nonsense)
In my GLES2 applications I just flood the index buffer with this nonsense because there is no other way, but IIRC OpenGL 3.3 should still have GL_QUADS
why textures implement AsUniformValue is
impl AsUniformValue for &'a TextureType
not
for TextureType? in the as_uniform_value(), code is UniformValue(*self, None), self: &'a Texture...
impl AsUniformValue for SrgbTexture2d {
fn as_uniform_value(&self) -> UniformValue {
UniformValue::SrgbTexture2d(self, None)
}
}impl UniformValue for &'a TextureX? Is to avoid memory safety issues in this code?I want to do this, but I'm afraid of causing problems, so come ask if this will cause any problems.
thanks very much!
Hello, what's the difference between a
Buffer and a BufferView? Intuition tells me a BufferView is a subset of a Buffer and so a BufferViewSlice must be a subset of a BufferView. This is the result I need but according to the documentation there seems to be no difference between the construction of a BufferView versus a Buffer at all.
@tomaka Hello! I made quick port of glium_text to rusttype https://github.com/not-fl3/glium_text - it works well for quick protyping and dont requires additional binary dependencies. Code is not clean, and I didnt found a way to get all characters from rusttype like you did with truetype, so I dont think that you need it in main repo.
But it works well for me, and I am thinking about publish it on crates.io with different name, like glium_text_rusttype, do you have any thoughts about it?
But it works well for me, and I am thinking about publish it on crates.io with different name, like glium_text_rusttype, do you have any thoughts about it?
I'm trying to perform a rotation, should I have my own timer, or does glutin/glium have a similar function
Thanks in advance! :D
What is the glium parameter equivalent of:
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
I've tried using all the blend functions with OneMinusSourceAlpha and it doesn't work
There is white stuff on the edge of the image as well as having a black background
If I run this in OpenGL it will make things transparent and it will remove that white stuff around the edge of the png
And to my second:
// At the start of your program
let instant = Instant::now()// Later
instant.elapsed().as_secs() as f64 + instant.elapsed().subsec_nanos() as f64 * 1e-9) as f32
first time with opengl :D
Hey everyone, I'm trying to learn about OpenGL by following the learnopengl, but right I'm lost.
I am trying to send a struct in a uniform, I tried everything that I could and nothing worked.
I tried the UniformBuffer to see if it would work, but even by itself with a simple f32 value, it doesn't work:
I am trying to send a struct in a uniform, I tried everything that I could and nothing worked.
I tried the UniformBuffer to see if it would work, but even by itself with a simple f32 value, it doesn't work:
let buffer_material = glium::uniforms::UniformBuffer::new(&display, 1.0f32).expect("failed to create uniform buffer");target.draw(&cube_vertex_buffer, &index_buffer, &program, &uniform! {
MyBlock: &buffer_material,
},
¶ms).expect("failed to draw");#version 330
uniform layout(std140);
uniform MyBlock {
float test;
} myblock;
void main() {
FragColor = vec4(myblock.test, 1.0);
}
I can force the value to 1.0, use a simpler uniform and it will work
but this absolutely doesn't want to work
I also tried renaming everything to make the block work, it just won't do anything.
Following this: LearnOpenGL - Lighting - Materials
What would I want to do to get the data I need across ? should I use regular uniforms and not worry about structs ? Even though it won't be as organized ?
New issue now, it works but only partially !
here is the rust code (only part of it)
#[derive(Copy, Clone)]
struct Test {
color: [f32; 3],
color_two: [f32; 3],
};
implement_uniform_block!(Test, color, color_two);
let struct_uni_test = Test {
color: [0.5, 0.5, 0.5],
color_two: [0.2, 0.6, 0.1],
};
let uni_test = glium::uniforms::UniformBuffer::new(&display, struct_uni_test).expect("failed to create uniform buffer");And the GLSL:
#version 330 core
uniform layout(std140);
uniform UniTest {
vec3 color;
vec3 color_two;
};
void main()
{
FragColor = vec4(color, 1.0);
}And here is the error:
thread 'main' panicked at 'failed to draw: UniformBlockLayoutMismatch { name: "UniTest", err: MemberMismatch { member: "color_two", err: OffsetMismatch { expected: 16, obtained: 12 } } }', src\libcore\result.rs:906:4
The second color isn't offset well ? why would that be ?
I've been using glium for writing a visualizer. now i want to support Resolume, so i need to write a FFGL plugin. it gets the opengl context passed from the host and then needs to render into it. how can i do that with glium?
https://github.com/leadedge/ShaderLoader/blob/master/Source/ShaderLoader.cpp#L265
https://github.com/leadedge/ShaderLoader/blob/master/Source/ShaderLoader.cpp#L265
what's the equivalent to: glEnable(GL_DEPTH_TEST);
just found the solution in : https://github.com/glium/glium/blob/master/book/tuto-09-depth.md