zenyx-engine/shaders/shader.vert

#version 450

layout(location = 0) in vec3 position;
layout(location = 1) in vec3 color;
layout(location = 2) in vec3 normal_in;
layout(location = 3) in vec2 tex_coords;
layout(location = 0) out vec2 tex_coord;
layout(location = 1) out vec4 normal;
layout(push_constant) uniform float TIME;
layout(set = 0, binding = 0) uniform UniformBufferObject {
    mat4x4 projection;
} view;
mat4 rotation(float lerp) {
    return mat4(cos(lerp), -sin(lerp), 0., 0.,
        sin(lerp), cos(lerp), 0., 0.,
        0., 0., 1., 0.,
        0., 0., 0., 1.);
}

void main() {
    float sum_val = sin(TIME / 5);

    mat4 model = transpose(mat4(
                1.0, 0.0, 0.0, sum_val,
                0.0, 1.0, 0.0, sum_val,
                0.0, 0.0, 1.0, sum_val,
                0.0, 0.0, 0.0, 1.0) * mat4((sin(TIME) + 1.0) / 2, 0.0, 0.0, 0.0,
                    0.0, (sin(TIME) + 1.0) / 2, 0.0, 0.0,
                    0.0, 0.0, (sin(TIME) + 1.0) / 2, 0.0,
                    0.0, 0.0, 0.0, 1) * rotation(TIME * 2.5));

    gl_Position = view.projection * model * vec4(position, 1.0);
    tex_coord = tex_coords * abs(sin(TIME / 4));
    // tex_coord.x = tex_coord.x * sin(TIME / 2);
    // tex_coord.y = tex_coord.y * cos(TIME / 2);
    normal = model * vec4(normal_in, 1.0);
}