Golang Engine Sandbox

Engine Subsystems

• Importer - Imports an existing scene YAML file and builds the node tree.

• Pipeline - Manages the render pipeline.

• Node Tree - Handles tree-wide functions.

• Nodes - Prebuilt nodes composed of Components that are placed in the node tree to describe the scene.

• Components - Composable data packages that are used to construct Nodes.

Setup

Install Go and clone the repo. Download all project dependencies. Run with go run main.go.

Usage

• Pan the camera by using the WASD keys.

• Rotate the object with the UI, JK, NM keys. They will affect the X, Y, Z vertex positions respectively.

Example Shaders

fragment.glsl

#version 410 core
out vec4 FragColor;
void main()
{
	FragColor = vec4(1.0, 0.5, 0.2, 1.0);
}

vertex.glsl

#version 410 core
layout (location = 0) in vec3 aPos;
uniform vec2 camera;
uniform float rotationX;
uniform float rotationY;
uniform float rotationZ;
mat4 rotateX(float angle) {
    float c = cos(angle);
    float s = sin(angle);
    return mat4(
        1.0, 0.0, 0.0, 0.0,
        0.0, c, -s, 0.0,
        0.0, s, c, 0.0,
        0.0, 0.0, 0.0, 1.0
    );
}
mat4 rotateY(float angle) {
    float c = cos(angle);
    float s = sin(angle);
    return mat4(
        c, 0.0, s, 0.0,
        0.0, 1.0, 0.0, 0.0,
        -s, 0.0, c, 0.0,
        0.0, 0.0, 0.0, 1.0
    );
}
mat4 rotateZ(float angle) {
    float c = cos(angle);
    float s = sin(angle);
    return mat4(
        c, -s, 0.0, 0.0,
        s, c, 0.0, 0.0,
        0.0, 0.0, 1.0, 0.0,
        0.0, 0.0, 0.0, 1.0
    );
}
void main()
{
    mat4 rotationMat = rotateX(rotationX) * rotateY(rotationY) * rotateZ(rotationZ);
    vec4 rotatedPos = rotationMat * vec4(aPos, 1.0);
    gl_Position = vec4(rotatedPos.x - camera.x, rotatedPos.y - camera.y, rotatedPos.z, 1.0);
}