shader_program.py

from settings import *


class ShaderProgram:
	def __init__(self, app):
		self.app = app
		self.ctx = app.ctx
		self.player = app.player
		# -----=== shaders ===-----
		self.chunk = self.get_program(shader_name="chunk")
		self.voxel_marker = self.get_program(shader_name="voxel_marker")
		# -----===---------===-----
		self.set_uniforms_on_init()


	def set_uniforms_on_init(self):
		# chunk
		self.chunk["m_proj"].write(self.player.m_proj)
		self.chunk["m_model"].write(glm.mat4())
		self.chunk["u_texture_array_0"] = 1
		self.chunk["bg_color"].write(BG_COLOR)

		# voxel marker
		self.voxel_marker["m_proj"].write(self.player.m_proj)
		self.voxel_marker["m_model"].write(glm.mat4())
		self.voxel_marker["u_texture_0"] = 0


	def update(self):
		self.chunk["m_view"].write(self.player.m_view)
		self.voxel_marker["m_view"].write(self.player.m_view)


	def get_program(self, shader_name):
		with open(f"shaders/{shader_name}.vert") as file:
			vertex_shader = file.read()

		with open(f"shaders/{shader_name}.frag") as file:
			fragment_shader = file.read()

		program = self.ctx.program(vertex_shader=vertex_shader, fragment_shader=fragment_shader)
		return program