camera.py - master - FaDaQ/ModernGL-Demo

camera.py

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FaDaQ

create: camera.py, cube.py, instanced_draw.py, label.py, settings.json, transform.py, fluid.png, grass.png, meteor.png, planks.png, stone.jpg

02 июн 2026, 14:37

Верифицирован

02 июн 2026, 14:37db0a0b4

import numpy as np
import moderngl as mgl
from pyglm import glm, glm_typing
import math

from transform import Transform

class Camera3D:
    def __init__(self, gl_context: mgl.Context, position: glm.vec3 = glm.vec3(0), rotation: glm.vec3 = glm.vec3(0), fov: float = 45.0):
        self.transform = Transform(position, glm.vec3(1), rotation)
        self.up = glm.vec3(0, 1, 0)
        self.fov = fov

        self.gl = gl_context

    @property
    def forward(self):
        yaw = self.transform.rotation.y
        pitch = self.transform.rotation.x

        front = glm.vec3(
            math.cos(math.radians(yaw)) * math.cos(math.radians(pitch)),
            math.sin(math.radians(pitch)),
            math.sin(math.radians(yaw)) * math.cos(math.radians(pitch))
        )
        front = glm.normalize(front)

        return glm.normalize(front)

    @property
    def right(self):
        rotation = self.transform.rotation
        yaw = rotation.y  # Угол поворота вокруг Y

        # Вектор right перпендикулярен направлению взгляда
        # Для yaw-rotation: right = (-sin(yaw), 0, cos(yaw))
        right = glm.vec3(
            -math.sin(math.radians(yaw)),
            0,
            math.cos(math.radians(yaw))
        )

        return glm.normalize(right)

    @property
    def view(self):
        return glm.transpose(glm.lookAt(self.transform.position, self.transform.position + self.forward, self.up))

    @property
    def projection(self, near: float = 0.1, far: float = 2000):
        viewport = self.gl.viewport
        return glm.transpose(glm.perspective(self.fov, viewport[2] / viewport[3], near, far))