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Texture won't sent to a shader
I used this MRE:
use macroquad::prelude::*;
#[macroquad::main("Post processing")]
async fn main() {
let material = load_material(
ShaderSource::Glsl {
vertex: CRT_VERTEX_SHADER,
fragment: CRT_FRAGMENT_SHADER,
},
MaterialParams {
textures: vec!["ferris_tex".to_string()],
..Default::default()
}
)
.unwrap();
let texture: Texture2D = load_texture("examples/ferris.png").await.unwrap();
material.set_texture("ferris_tex", texture);
loop {
gl_use_material(&material);
draw_rectangle(0., 0., screen_width(), screen_height(), WHITE);
gl_use_default_material();
next_frame().await;
}
}
const CRT_FRAGMENT_SHADER: &str = r#"#version 100
precision lowp float;
varying vec4 color;
varying vec2 uv;
uniform sampler2D ferris_tex;
void main() {
gl_FragColor = vec4(texture2D(ferris_tex, uv).rgb, 1.0);
}
"#;
const CRT_VERTEX_SHADER: &str = "#version 100
attribute vec3 position;
attribute vec2 texcoord;
attribute vec4 color0;
varying lowp vec2 uv;
varying lowp vec4 color;
uniform mat4 Model;
uniform mat4 Projection;
void main() {
gl_Position = Projection * Model * vec4(position, 1);
color = color0 / 255.0;
uv = texcoord;
}
";
This example should draw ferris texture. But on current version it draws black screen.
Using git bisect
I found that after this commit this example brokes.
Fixing this requires a breaking change for both macroquad and miniquad:
- macroquads
Material::set_texture
and miniquadsQuadGl::set_texture
should take&Texture2D
instead ofTexture2D
.
In the meantime @optozorax for your example to work you need to use material.set_texture("ferris_tex", texture.clone())
;
(Don't worry, it won't actually clone the texture, just a smart pointer for it)