174 lines
6.3 KiB
Python
Executable file
174 lines
6.3 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
# /*******************************************************************************************
|
|
# *
|
|
# * raylib [shaders] example - basic lighting
|
|
# *
|
|
# * NOTE: This example requires raylib OpenGL 3.3 or ES2 versions for shaders support,
|
|
# * OpenGL 1.1 does not support shaders, recompile raylib to OpenGL 3.3 version.
|
|
# *
|
|
# * NOTE: Shaders used in this example are #version 330 (OpenGL 3.3).
|
|
# *
|
|
# * This example has been created using raylib 2.5 (www.raylib.com)
|
|
# * raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
|
|
# *
|
|
# * Example contributed by Chris Camacho (@codifies) and reviewed by Ramon Santamaria (@raysan5)
|
|
# *
|
|
# * Chris Camacho (@codifies - http://bedroomcoders.co.uk/) notes:
|
|
# *
|
|
# * This is based on the PBR lighting example, but greatly simplified to aid learning...
|
|
# * actually there is very little of the PBR example left!
|
|
# * When I first looked at the bewildering complexity of the PBR example I feared
|
|
# * I would never understand how I could do simple lighting with raylib however its
|
|
# * a testement to the authors of raylib (including rlights.h) that the example
|
|
# * came together fairly quickly.
|
|
# *
|
|
# * Copyright (c) 2019 Chris Camacho (@codifies) and Ramon Santamaria (@raysan5)
|
|
# *
|
|
# *
|
|
# ********************************************************************************************/
|
|
|
|
|
|
import raylib as rl
|
|
|
|
from raylib.colors import *
|
|
from dataclasses import dataclass
|
|
from enum import Enum
|
|
from typing import Any
|
|
import math
|
|
|
|
# a few functions ported from raymath
|
|
from rlmath import *
|
|
|
|
# lighting system
|
|
from light_system import *
|
|
|
|
# Initialization
|
|
# --------------------------------------------------------------------------------------
|
|
screenWidth = 1200
|
|
screenHeight = 720
|
|
|
|
rl.SetConfigFlags(
|
|
rl.FLAG_MSAA_4X_HINT | rl.FLAG_WINDOW_RESIZABLE); # Enable Multi Sampling Anti Aliasing 4x (if available)
|
|
rl.InitWindow(screenWidth, screenHeight, b"raylib [shaders] example - basic lighting")
|
|
|
|
camera = rl.ffi.new('struct Camera3D *', [
|
|
[2, 2, 6],
|
|
[0, .5, 0],
|
|
[0, 1, 0],
|
|
45,
|
|
rl.CAMERA_PERSPECTIVE
|
|
])
|
|
|
|
# Load models
|
|
modelA = rl.LoadModelFromMesh(rl.GenMeshTorus(0.4, 1.0, 16, 32))
|
|
modelB = rl.LoadModelFromMesh(rl.GenMeshCube(1.0, 1.0, 1.0))
|
|
modelC = rl.LoadModelFromMesh(rl.GenMeshSphere(0.5, 32, 32))
|
|
|
|
# Load models texture
|
|
texture = rl.LoadTexture(b"resources/texel_checker.png")
|
|
|
|
# Assign texture to default model material
|
|
modelA.materials[0].maps[rl.MATERIAL_MAP_ALBEDO].texture = texture
|
|
modelB.materials[0].maps[rl.MATERIAL_MAP_ALBEDO].texture = texture
|
|
modelC.materials[0].maps[rl.MATERIAL_MAP_ALBEDO].texture = texture
|
|
|
|
angle = 6.282
|
|
|
|
# Using 4 point lights, white, red, green and blue
|
|
|
|
lights0 = Light(LIGHT_POINT, [4, 2, 4], Vector3Zero(), WHITE)
|
|
lights1 = Light(LIGHT_POINT, [4, 2, 4], Vector3Zero(), RED)
|
|
lights2 = Light(LIGHT_POINT, [0, 4, 2], Vector3Zero(), GREEN)
|
|
lights3 = Light(LIGHT_POINT, [0, 4, 2], Vector3Zero(), BLUE)
|
|
|
|
lightSystem = LightSystem([0.2, 0.2, 0.2, 1.0], lights0, lights1, lights2, lights3)
|
|
fogD = rl.GetShaderLocation(lightSystem.shader, b'FogDensity')
|
|
fogDensity = 0.0
|
|
|
|
# All models use the same shader - which lights them
|
|
modelA.materials[0].shader = lightSystem.shader
|
|
modelB.materials[0].shader = lightSystem.shader
|
|
modelC.materials[0].shader = lightSystem.shader
|
|
|
|
rl.SetTargetFPS(60) # // Set our game to run at 60 frames-per-second
|
|
# --------------------------------------------------------------------------------------
|
|
|
|
# Main game loop
|
|
while not rl.WindowShouldClose(): # Detect window close button or ESC key
|
|
# Update
|
|
# ----------------------------------------------------------------------------------
|
|
if rl.IsKeyPressed(rl.KEY_W): lights0.enabled = not lights0.enabled
|
|
if rl.IsKeyPressed(rl.KEY_R): lights1.enabled = not lights1.enabled
|
|
if rl.IsKeyPressed(rl.KEY_G): lights2.enabled = not lights2.enabled
|
|
if rl.IsKeyPressed(rl.KEY_B): lights3.enabled = not lights3.enabled
|
|
|
|
rl.UpdateCamera(camera, rl.CAMERA_ORBITAL) # Update camera
|
|
|
|
# Make the lights do differing orbits
|
|
angle -= 0.02
|
|
lights0.position.x = math.cos(angle) * 4.0
|
|
lights0.position.z = math.sin(angle) * 4.0
|
|
lights1.position.x = math.cos(-angle * 0.6) * 4.0
|
|
lights1.position.z = math.sin(-angle * 0.6) * 4.0
|
|
lights2.position.y = math.cos(angle * 0.2) * 4.0
|
|
lights2.position.z = math.sin(angle * 0.2) * 4.0
|
|
lights3.position.y = math.cos(-angle * 0.35) * 4.0
|
|
lights3.position.z = math.sin(-angle * 0.35) * 4.0
|
|
|
|
# Update the light shader with the camera view position
|
|
|
|
lightSystem.update(camera.position)
|
|
|
|
# ffi.cast('wchar_t', x)
|
|
# modelA.transform = ffi.cast('Matrix *', MatrixRotateY(angle*1.7))[0]
|
|
# modelA.transform = MatrixRotateY(angle*1.7)
|
|
# Rotate the torus
|
|
# modelA.transform = MatrixMultiply(modelA.transform, MatrixRotateX(-0.025)[0])[0]
|
|
# modelA.transform = MatrixMultiply(modelA.transform, MatrixRotateZ(0.012)[0])[0]
|
|
modelA.transform = rl.ffi.cast('Matrix *', MatrixMultiply(modelA.transform, MatrixRotateX(-0.025)))[0]
|
|
modelA.transform = rl.ffi.cast('Matrix *', MatrixMultiply(modelA.transform, MatrixRotateZ(0.012)))[0]
|
|
|
|
if (rl.IsKeyPressed(rl.KEY_F)):
|
|
rl.ToggleFullscreen()
|
|
|
|
# ----------------------------------------------------------------------------------
|
|
|
|
# Draw
|
|
# ----------------------------------------------------------------------------------
|
|
rl.BeginDrawing()
|
|
|
|
rl.ClearBackground(RAYWHITE)
|
|
|
|
rl.BeginMode3D(camera[0])
|
|
|
|
# Draw the three models
|
|
rl.DrawModel(modelA, [0, 0, 0], 1.0, WHITE)
|
|
rl.DrawModel(modelB, [-1.6, 0, 0], 1.0, WHITE)
|
|
rl.DrawModel(modelC, [1.6, 0, 0], 1.0, WHITE)
|
|
|
|
# Draw markers to show where the lights are
|
|
lightSystem.draw()
|
|
|
|
rl.DrawGrid(10, 1.0)
|
|
|
|
rl.EndMode3D()
|
|
|
|
rl.DrawFPS(10, 10)
|
|
|
|
rl.DrawText(b"Keys RGB & W toggle lights", 10, 30, 20, DARKGRAY)
|
|
|
|
rl.EndDrawing()
|
|
# ----------------------------------------------------------------------------------
|
|
|
|
|
|
# De-Initialization
|
|
# --------------------------------------------------------------------------------------
|
|
rl.UnloadModel(modelA) # Unload the modelA
|
|
rl.UnloadModel(modelB) # Unload the modelB
|
|
rl.UnloadModel(modelC) # Unload the modelC
|
|
|
|
rl.UnloadTexture(texture) # Unload the texture
|
|
|
|
rl.UnloadShader(lightSystem.shader)
|
|
|
|
rl.CloseWindow() # Close window and OpenGL context
|