914 lines
31 KiB
Zig
914 lines
31 KiB
Zig
const Game = @This();
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const std = @import("std");
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const c = @import("const.zig");
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const glfw = @import("zglfw");
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const math = @import("math.zig");
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const shaders = @import("shaders.zig");
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const vk = @import("vulkan");
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const vm = @import("vecmath");
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const worldgen = @import("worldgen.zig");
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const Blocks = @import("assets/Blocks.zig");
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const Chunk = @import("assets/Chunk.zig");
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const Chunks = @import("Chunks.zig");
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const CommandBuffer = @import("engine/CommandBuffer.zig");
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const Engine = @import("engine/Engine.zig");
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const Iterator2 = math.Iterator2;
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const Materials = @import("assets/Materials.zig");
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const Player = @import("Player.zig");
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const Skybox = @import("engine/Skybox.zig");
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const StagingBuffer = @import("engine/StagingBuffer.zig");
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const Swapchain = @import("engine/Swapchain.zig");
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const Textures = @import("assets/Textures.zig");
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allocator: std.mem.Allocator,
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engine: *Engine,
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swapchain: *Swapchain,
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global_descriptor_set_layout: vk.DescriptorSetLayout,
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per_batch_descriptor_set_layout: vk.DescriptorSetLayout,
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descriptor_pool: vk.DescriptorPool,
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global_descriptor_set: vk.DescriptorSet,
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pipeline_layout: vk.PipelineLayout,
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pipeline: vk.Pipeline,
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vertex_buffer: shaders.VertexBuffer,
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index_buffer: shaders.IndexBuffer,
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global_uniforms: shaders.GlobalUniformsBuffer,
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global_uniforms_staging_buffer: StagingBuffer,
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global_uniforms_transfer_semaphores: []vk.Semaphore,
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point_lights: shaders.PointLightBuffer,
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directional_lights: shaders.DirectionalLightBuffer,
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sampler: vk.Sampler,
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deferred_command_buffers: std.ArrayList(CommandBuffer),
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blocks: Blocks,
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materials: Materials,
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textures: Textures,
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chunks: Chunks,
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skybox: Skybox,
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player: Player,
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const max_textures = 1024;
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const max_point_lights = 1024;
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const max_directional_lights = 4;
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const chunk_descriptor_pool = 1024;
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const camera_near_plane = 0.1;
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pub fn init(allocator: std.mem.Allocator, engine: *Engine, swapchain: *Swapchain) !Game {
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var materials = try Materials.init(engine, allocator);
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errdefer materials.deinit(engine, allocator);
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var textures = try Textures.init(engine, allocator);
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errdefer textures.deinit(engine, allocator);
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var blocks = try Blocks.init(allocator);
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errdefer blocks.deinit(allocator);
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// JANK HACK When this line is removed, capturing a frame with RenderDoc
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// will crash the game with segfault reading address 0x140 (presumably
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// within librenderdoc.so).
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blocks.loadAll(engine, &materials, &textures, allocator);
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const sampler = try engine.createSampler(.{
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.mag_filter = .linear,
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.min_filter = .linear,
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.mipmap_mode = .linear,
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.address_mode_u = .repeat,
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.address_mode_v = .repeat,
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.address_mode_w = .repeat,
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.mip_lod_bias = 0,
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.anisotropy_enable = .false,
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.max_anisotropy = 0,
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.compare_enable = .false,
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.compare_op = .always,
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.min_lod = 0,
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.max_lod = vk.LOD_CLAMP_NONE,
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.border_color = .float_transparent_black,
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.unnormalized_coordinates = .false,
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});
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errdefer engine.destroySampler(sampler);
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const global_descriptor_set_layout = try engine.createDescriptorSetLayout(.{
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.bindings = &.{
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.{
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.binding = 0,
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.descriptor_type = .uniform_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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.{
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.binding = 1,
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.descriptor_type = .storage_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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.{
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.binding = 2,
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.descriptor_type = .storage_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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.{
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.binding = 3,
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.descriptor_type = .storage_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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.{
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.binding = 4,
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.descriptor_type = .sampler,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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.immutable_samplers = &.{sampler},
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},
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.{
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.binding = 5,
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.descriptor_type = .sampled_image,
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.descriptor_count = max_textures,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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.flags = .{ .variable_descriptor_count_bit = true },
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},
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},
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});
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errdefer engine.destroyDescriptorSetLayout(global_descriptor_set_layout);
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engine.setObjectName(global_descriptor_set_layout, "DSL Global", .{});
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const per_batch_descriptor_set_layout = try engine.createDescriptorSetLayout(.{
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.bindings = &.{
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.{
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.binding = 0,
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.descriptor_type = .storage_buffer,
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.descriptor_count = 1,
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.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
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},
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},
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});
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errdefer engine.destroyDescriptorSetLayout(per_batch_descriptor_set_layout);
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engine.setObjectName(per_batch_descriptor_set_layout, "DSL PerBatch", .{});
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const pipeline_layout = try engine.createPipelineLayout(.{
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.set_layouts = &.{
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global_descriptor_set_layout,
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per_batch_descriptor_set_layout,
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},
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});
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errdefer engine.destroyPipelineLayout(pipeline_layout);
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engine.setObjectName(pipeline_layout, "PL", .{});
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const vertex_shader = try engine.createShaderModule(.{ .code = &shaders.main_vert_spv });
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defer engine.destroyShaderModule(vertex_shader);
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engine.setObjectName(vertex_shader, "SM main_vert", .{});
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const fragment_shader = try engine.createShaderModule(.{ .code = &shaders.main_frag_spv });
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defer engine.destroyShaderModule(fragment_shader);
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engine.setObjectName(fragment_shader, "SM main_frag", .{});
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var vertex_buffer = try shaders.VertexBuffer.init(engine, .{
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.usage = .vertex,
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.target_queue = .graphics,
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.array_capacity = 4,
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.name = "QuadVB",
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});
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errdefer vertex_buffer.deinit(engine);
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try vertex_buffer.write(engine, .{
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.elements = &.{
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.init(
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.init(0, 0, 0),
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.init(0, 1),
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.init(0, 0, 1),
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.init(1, 0, 0, -1),
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),
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.init(
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.init(1, 0, 0),
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.init(1, 1),
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.init(0, 0, 1),
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.init(1, 0, 0, -1),
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),
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.init(
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.init(0, 1, 0),
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.init(0, 0),
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.init(0, 0, 1),
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.init(1, 0, 0, -1),
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),
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.init(
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.init(1, 1, 0),
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.init(1, 0),
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.init(0, 0, 1),
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.init(1, 0, 0, -1),
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),
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},
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});
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var index_buffer = try shaders.IndexBuffer.init(engine, .{
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.usage = .index,
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.target_queue = .graphics,
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.array_capacity = 6,
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.name = "QuadIB",
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});
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errdefer index_buffer.deinit(engine);
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try index_buffer.write(engine, .{
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.elements = &.{ 0, 1, 2, 2, 1, 3 },
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});
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var global_uniforms = try shaders.GlobalUniformsBuffer.init(engine, .{
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.usage = .uniform,
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.target_queue = .graphics,
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.name = "GlobalUniforms",
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});
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errdefer global_uniforms.deinit(engine);
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var global_uniforms_staging_buffer = try StagingBuffer.init(engine, .{
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.capacity = @sizeOf(shaders.GlobalUniforms),
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.target_queue = .graphics,
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});
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errdefer global_uniforms_staging_buffer.deinit(engine);
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const global_uniforms_transfer_semaphores = blk: {
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var semaphores: std.ArrayList(vk.Semaphore) = try .initCapacity(allocator, swapchain.swapchain_images.len);
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errdefer semaphores.deinit(allocator);
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errdefer for (semaphores.items) |x| engine.destroySemaphore(x);
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for (0..swapchain.swapchain_images.len) |i| {
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const semaphore = try engine.createSemaphore();
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engine.setObjectName(semaphore, "S Transfer[{d}]", .{i});
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semaphores.appendAssumeCapacity(semaphore);
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}
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break :blk try semaphores.toOwnedSlice(allocator);
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};
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errdefer {
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for (global_uniforms_transfer_semaphores) |semaphore| {
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engine.destroySemaphore(semaphore);
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}
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allocator.free(global_uniforms_transfer_semaphores);
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}
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var point_lights = try shaders.PointLightBuffer.init(engine, .{
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.usage = .storage,
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.target_queue = .graphics,
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.array_capacity = max_point_lights,
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.name = "PointLights",
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});
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errdefer point_lights.deinit(engine);
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var directional_lights = try shaders.DirectionalLightBuffer.init(engine, .{
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.usage = .storage,
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.target_queue = .graphics,
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.array_capacity = max_directional_lights,
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.name = "DirectionalLights",
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});
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errdefer directional_lights.deinit(engine);
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const pipeline = try engine.createGraphicsPipeline(.{
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.stages = &.{
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.{
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.stage = .{ .vertex_bit = true },
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.module = vertex_shader,
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.name = "main",
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},
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.{
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.stage = .{ .fragment_bit = true },
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.module = fragment_shader,
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.name = "main",
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},
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},
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.vertex_input_state = .{
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.vertex_binding_descriptions = &.{
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.{
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.binding = 0,
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.stride = @sizeOf(shaders.Vertex),
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.input_rate = .vertex,
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},
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},
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.vertex_attribute_descriptions = &.{
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.{
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.location = 0,
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.binding = 0,
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.format = .r32g32b32_sfloat,
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.offset = @offsetOf(shaders.Vertex, "positionOS"),
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},
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.{
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.location = 1,
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.binding = 0,
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.format = .r16g16_unorm,
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.offset = @offsetOf(shaders.Vertex, "texCoord"),
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},
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.{
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.location = 2,
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.binding = 0,
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.format = .r8g8b8_snorm,
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.offset = @offsetOf(shaders.Vertex, "normalOS"),
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},
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.{
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.location = 3,
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.binding = 0,
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.format = .r8g8b8a8_snorm,
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.offset = @offsetOf(shaders.Vertex, "tangentOS"),
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},
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},
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},
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.input_assembly_state = .{
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.topology = .triangle_list,
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.primitive_restart_enable = .false,
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},
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.viewport_state = .{
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.viewports = &.{undefined}, // dynamic
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.scissors = &.{undefined}, // dynamic
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},
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.rasterization_state = .{
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.depth_clamp_enable = .false,
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.rasterizer_discard_enable = .false,
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.polygon_mode = .fill,
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.cull_mode = .{ .back_bit = true },
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.front_face = .counter_clockwise,
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.depth_bias_enable = .false,
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.depth_bias_constant_factor = 0,
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.depth_bias_clamp = 0,
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.depth_bias_slope_factor = 0,
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.line_width = 1,
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},
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.multisample_state = .{
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.rasterization_samples = .{ .@"1_bit" = true },
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.sample_shading_enable = .false,
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.min_sample_shading = 1,
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.alpha_to_coverage_enable = .false,
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.alpha_to_one_enable = .false,
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},
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.depth_stencil_state = .{
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.depth_test_enable = .true,
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.depth_write_enable = .true,
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.depth_compare_op = .greater,
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.depth_bounds_test_enable = .false,
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.stencil_test_enable = .false,
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.front = .{
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.fail_op = .keep,
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.pass_op = .keep,
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.depth_fail_op = .keep,
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.compare_op = .never,
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.compare_mask = 0,
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.write_mask = 0,
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.reference = 0,
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},
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.back = .{
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.fail_op = .keep,
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.pass_op = .keep,
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.depth_fail_op = .keep,
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.compare_op = .never,
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.compare_mask = 0,
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.write_mask = 0,
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.reference = 0,
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},
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.min_depth_bounds = 0,
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.max_depth_bounds = 1,
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},
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.color_blend_state = .{
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.logic_op_enable = .false,
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.logic_op = .copy,
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.attachments = &.{
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.{
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.blend_enable = .false,
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.src_color_blend_factor = .one,
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.dst_color_blend_factor = .zero,
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.color_blend_op = .add,
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.src_alpha_blend_factor = .one,
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.dst_alpha_blend_factor = .zero,
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.alpha_blend_op = .add,
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.color_write_mask = .{
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.r_bit = true,
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.g_bit = true,
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.b_bit = true,
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.a_bit = true,
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},
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},
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},
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.blend_constants = .{ 0, 0, 0, 0 },
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},
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.dynamic_state = .{
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.dynamic_states = &.{ .viewport, .scissor },
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},
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.layout = pipeline_layout,
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.render_pass = swapchain.render_pass,
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.subpass = 0,
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});
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errdefer engine.destroyPipeline(pipeline);
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engine.setObjectName(pipeline, "P", .{});
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const descriptor_pool = try engine.createDescriptorPool(.{
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.flags = .{
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.free_descriptor_set_bit = true,
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},
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.max_sets = 1 + chunk_descriptor_pool,
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.pool_sizes = &.{
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.{
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.type = .sampler,
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.descriptor_count = 1,
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},
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.{
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.type = .sampled_image,
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.descriptor_count = max_textures,
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},
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.{
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.type = .uniform_buffer,
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.descriptor_count = 1,
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},
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.{
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.type = .storage_buffer,
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.descriptor_count = 3 + chunk_descriptor_pool,
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},
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},
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});
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errdefer engine.destroyDescriptorPool(descriptor_pool);
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engine.setObjectName(descriptor_pool, "DP", .{});
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const global_descriptor_set = try engine.allocateDescriptorSet(.{
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.descriptor_pool = descriptor_pool,
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.set_layout = global_descriptor_set_layout,
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.variable_descriptor_count = @intCast(textures.array.items.len),
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});
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engine.setObjectName(global_descriptor_set, "DS Global", .{});
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const block_grass = try blocks.getOrLoad(engine, &materials, &textures, "Grass.json", allocator);
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const block_dirt = try blocks.getOrLoad(engine, &materials, &textures, "Dirt.json", allocator);
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const block_stone = try blocks.getOrLoad(engine, &materials, &textures, "Stone.json", allocator);
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const block_bedrock = try blocks.getOrLoad(engine, &materials, &textures, "Bedrock.json", allocator);
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// VOLATILE Load all assets before this point
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const descriptor_images = try allocator.alloc(vk.DescriptorImageInfo, textures.array.items.len);
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for (textures.array.items, descriptor_images) |texture, *info| {
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info.* = .{
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.sampler = .null_handle,
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.image_view = texture.image_view,
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.image_layout = .shader_read_only_optimal,
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};
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}
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defer allocator.free(descriptor_images);
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try engine.updateDescriptorSets(.{
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.writes = &.{
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.{
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.dst_set = global_descriptor_set,
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.dst_binding = 0,
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.dst_array_element = 0,
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.descriptor_type = .uniform_buffer,
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.descriptor_infos = .{
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.buffer = &.{
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.{
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.buffer = global_uniforms.buffer,
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.offset = 0,
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.range = vk.WHOLE_SIZE,
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},
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},
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},
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},
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.{
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.dst_set = global_descriptor_set,
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.dst_binding = 1,
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.dst_array_element = 0,
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.descriptor_type = .storage_buffer,
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.descriptor_infos = .{
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.buffer = &.{
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.{
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.buffer = point_lights.buffer,
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.offset = 0,
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.range = vk.WHOLE_SIZE,
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},
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},
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},
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},
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.{
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.dst_set = global_descriptor_set,
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.dst_binding = 2,
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.dst_array_element = 0,
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.descriptor_type = .storage_buffer,
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.descriptor_infos = .{
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.buffer = &.{
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.{
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.buffer = directional_lights.buffer,
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.offset = 0,
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.range = vk.WHOLE_SIZE,
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},
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},
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},
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},
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.{
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.dst_set = global_descriptor_set,
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.dst_binding = 3,
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.dst_array_element = 0,
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.descriptor_type = .storage_buffer,
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.descriptor_infos = .{
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.buffer = &.{
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.{
|
|
.buffer = materials.material_buffer.buffer,
|
|
.offset = 0,
|
|
.range = vk.WHOLE_SIZE,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
.{
|
|
.dst_set = global_descriptor_set,
|
|
.dst_binding = 5,
|
|
.dst_array_element = 0,
|
|
.descriptor_type = .sampled_image,
|
|
.descriptor_infos = .{ .image = descriptor_images },
|
|
},
|
|
},
|
|
});
|
|
|
|
var chunks: std.AutoHashMapUnmanaged([3]i16, Chunk) = .empty;
|
|
errdefer {
|
|
var it = chunks.valueIterator();
|
|
while (it.next()) |chunk| {
|
|
chunk.deinit(engine, descriptor_pool);
|
|
}
|
|
chunks.deinit(allocator);
|
|
}
|
|
|
|
const world_seed = engine.random.int(u64);
|
|
std.log.info("Using world seed 0x{x:0<16}", .{world_seed});
|
|
var it = Iterator2(i16).init(.{
|
|
.min = .{ -8, -8 },
|
|
.max = .{ 8, 8 },
|
|
});
|
|
while (it.next()) |chunk_coords2| {
|
|
const chunk_coords3 = chunk_coords2 ++ [_]i16{0};
|
|
|
|
const origin = vm.Vector3.init(
|
|
@floatFromInt(chunk_coords3[0]),
|
|
@floatFromInt(chunk_coords3[1]),
|
|
@floatFromInt(chunk_coords3[2]),
|
|
).mulScalar(16);
|
|
|
|
try chunks.ensureUnusedCapacity(allocator, 1);
|
|
chunks.putAssumeCapacityNoClobber(
|
|
chunk_coords3,
|
|
try Chunk.init(engine, .{
|
|
.origin = origin,
|
|
.descriptor_pool = descriptor_pool,
|
|
.per_batch_descriptor_set_layout = per_batch_descriptor_set_layout,
|
|
}),
|
|
);
|
|
const chunk = chunks.getPtr(chunk_coords3).?;
|
|
|
|
var y: usize = 0;
|
|
while (y < 16) : (y += 1) {
|
|
const fpos0 = vm.Vector2x8.init(
|
|
.{ 0, 1, 2, 3, 4, 5, 6, 7 },
|
|
@splat(@floatFromInt(y)),
|
|
).add(.splat(origin.dropZ()));
|
|
const fpos1 = vm.Vector2x8.init(
|
|
.{ 8, 9, 10, 11, 12, 13, 14, 15 },
|
|
@splat(@floatFromInt(y)),
|
|
).add(.splat(origin.dropZ()));
|
|
|
|
const iheight0 = worldgen.heightIv(world_seed, fpos0);
|
|
const iheight1 = worldgen.heightIv(world_seed, fpos1);
|
|
|
|
const iheightv: [16]i32 = @as([8]i32, iheight0) ++ @as([8]i32, iheight1);
|
|
var x: usize = 0;
|
|
while (x < 16) : (x += 1) {
|
|
chunk.blocks[0][y][x] = block_bedrock;
|
|
const iheight = iheightv[x];
|
|
var i: i32 = 0;
|
|
while (i < iheight) : (i += 1) {
|
|
const iz = i + 1;
|
|
const block = if (i + 1 == iheight)
|
|
block_grass
|
|
else if (i + 4 >= iheight)
|
|
block_dirt
|
|
else
|
|
block_stone;
|
|
chunk.blocks[@intCast(iz)][y][x] = block;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const player_position_vx = vm.Vector3Int.init(0, 0, worldgen.heightI(world_seed, .zero) + 1);
|
|
const player_position_sv = player_position_vx
|
|
.mulScalar(c.sv_per_vx)
|
|
.add(.init(c.sv_per_vx / 2, c.sv_per_vx / 2, 0));
|
|
|
|
var chunk_it = chunks.iterator();
|
|
while (chunk_it.next()) |entry| {
|
|
const x, const y, const z = entry.key_ptr.*;
|
|
const chunk = entry.value_ptr;
|
|
try chunk.refresh(engine, &blocks, .{
|
|
.positive_x = chunks.getPtr(.{ x + 1, y, z }),
|
|
.negative_x = chunks.getPtr(.{ x - 1, y, z }),
|
|
.positive_y = chunks.getPtr(.{ x, y + 1, z }),
|
|
.negative_y = chunks.getPtr(.{ x, y - 1, z }),
|
|
.positive_z = chunks.getPtr(.{ x, y, z + 1 }),
|
|
.negative_z = chunks.getPtr(.{ x, y, z - 1 }),
|
|
}, allocator);
|
|
}
|
|
|
|
const point_lights_data: []const shaders.PointLight = &.{};
|
|
try point_lights.write(engine, .{
|
|
.header = @intCast(point_lights_data.len),
|
|
.elements = point_lights_data,
|
|
});
|
|
|
|
const directional_lights_data: []const shaders.DirectionalLight = &.{
|
|
.{
|
|
.directionWS = .unit_nz,
|
|
.color = .init(0.3, 0.3, 0.3),
|
|
},
|
|
};
|
|
try directional_lights.write(engine, .{
|
|
.header = @intCast(directional_lights_data.len),
|
|
.elements = directional_lights_data,
|
|
});
|
|
|
|
var skybox = try Skybox.load("skybox.hdr", engine, 512, global_uniforms.buffer, swapchain.render_pass, allocator);
|
|
errdefer skybox.deinit(engine);
|
|
|
|
return .{
|
|
.allocator = allocator,
|
|
.engine = engine,
|
|
.swapchain = swapchain,
|
|
.global_descriptor_set_layout = global_descriptor_set_layout,
|
|
.per_batch_descriptor_set_layout = per_batch_descriptor_set_layout,
|
|
.descriptor_pool = descriptor_pool,
|
|
.global_descriptor_set = global_descriptor_set,
|
|
.pipeline_layout = pipeline_layout,
|
|
.pipeline = pipeline,
|
|
|
|
.vertex_buffer = vertex_buffer,
|
|
.index_buffer = index_buffer,
|
|
|
|
.global_uniforms = global_uniforms,
|
|
.global_uniforms_staging_buffer = global_uniforms_staging_buffer,
|
|
.global_uniforms_transfer_semaphores = global_uniforms_transfer_semaphores,
|
|
.point_lights = point_lights,
|
|
.directional_lights = directional_lights,
|
|
.sampler = sampler,
|
|
.deferred_command_buffers = try .initCapacity(allocator, 4),
|
|
|
|
.blocks = blocks,
|
|
.materials = materials,
|
|
.textures = textures,
|
|
.chunks = .{ .chunks = chunks },
|
|
.skybox = skybox,
|
|
|
|
.player = .init(player_position_sv, 0, 0),
|
|
};
|
|
}
|
|
|
|
pub fn deinit(self: *Game) void {
|
|
std.log.scoped(.deinit).debug("Deinitializing {*}", .{self});
|
|
|
|
for (self.deferred_command_buffers.items) |*command_buffer| {
|
|
command_buffer.deinit(self.engine);
|
|
}
|
|
self.deferred_command_buffers.deinit(self.allocator);
|
|
|
|
self.vertex_buffer.deinit(self.engine);
|
|
self.index_buffer.deinit(self.engine);
|
|
|
|
self.chunks.deinit(self.engine, self.descriptor_pool, self.allocator);
|
|
self.skybox.deinit(self.engine);
|
|
|
|
self.global_uniforms.deinit(self.engine);
|
|
self.global_uniforms_staging_buffer.deinit(self.engine);
|
|
self.point_lights.deinit(self.engine);
|
|
self.directional_lights.deinit(self.engine);
|
|
|
|
for (self.global_uniforms_transfer_semaphores) |semaphore| {
|
|
self.engine.destroySemaphore(semaphore);
|
|
}
|
|
self.allocator.free(self.global_uniforms_transfer_semaphores);
|
|
|
|
self.engine.destroyDescriptorPool(self.descriptor_pool);
|
|
self.engine.destroySampler(self.sampler);
|
|
self.engine.destroyPipeline(self.pipeline);
|
|
self.engine.destroyPipelineLayout(self.pipeline_layout);
|
|
self.engine.destroyDescriptorSetLayout(self.per_batch_descriptor_set_layout);
|
|
self.engine.destroyDescriptorSetLayout(self.global_descriptor_set_layout);
|
|
|
|
self.textures.deinit(self.engine, self.allocator);
|
|
self.materials.deinit(self.engine, self.allocator);
|
|
self.blocks.deinit(self.allocator);
|
|
self.* = undefined;
|
|
}
|
|
|
|
pub fn update(self: *Game, dt: f32) void {
|
|
self.player.update(dt, &self.chunks);
|
|
|
|
self.render() catch |err| {
|
|
std.log.err("Failed to render: {s}", .{@errorName(err)});
|
|
@panic("Frame update failed");
|
|
};
|
|
}
|
|
|
|
pub fn onKeyDown(self: *Game, key: glfw.Key) void {
|
|
self.player.onKeyDown(key);
|
|
}
|
|
|
|
pub fn onKeyUp(self: *Game, key: glfw.Key) void {
|
|
self.player.onKeyUp(key);
|
|
}
|
|
|
|
pub fn onMouseMove(self: *Game, dx: f32, dy: f32) void {
|
|
self.player.onMouseMove(dx, dy);
|
|
}
|
|
|
|
pub fn onMouseDown(self: *Game, button: glfw.MouseButton) void {
|
|
self.player.onMouseDown(button, self);
|
|
}
|
|
|
|
pub fn onMouseUp(self: *Game, button: glfw.MouseButton) void {
|
|
_ = self;
|
|
_ = button;
|
|
}
|
|
|
|
fn render(self: *Game) !void {
|
|
const framebuffer_width, const framebuffer_height = blk: {
|
|
const w, const h = self.engine.mode.surface.window.getFramebufferSize();
|
|
break :blk [_]u32{ @intCast(w), @intCast(h) };
|
|
};
|
|
|
|
if (framebuffer_width == 0 or framebuffer_height == 0) {
|
|
return;
|
|
}
|
|
|
|
if (framebuffer_width != self.swapchain.extent.width or framebuffer_height != self.swapchain.extent.height) {
|
|
try self.recreateSwapchain();
|
|
}
|
|
|
|
if (self.swapchain.swapchain == .null_handle) {
|
|
return;
|
|
}
|
|
|
|
self.swapchain.acquire(self.engine) catch |err| switch (err) {
|
|
error.OutOfDateKHR => return self.recreateSwapchain(),
|
|
else => return err,
|
|
};
|
|
|
|
for (self.deferred_command_buffers.items) |*deferred_command_buffer| {
|
|
deferred_command_buffer.deinit(self.engine);
|
|
}
|
|
self.deferred_command_buffers.clearRetainingCapacity();
|
|
|
|
const extent = self.swapchain.extent;
|
|
|
|
const framebuffer_size = vm.Vector2.init(
|
|
@floatFromInt(extent.width),
|
|
@floatFromInt(extent.height),
|
|
);
|
|
|
|
const camera_position = self.player.position_sv
|
|
.asFloat()
|
|
.divScalar(c.sv_per_vx)
|
|
.add(.init(0, 0, Player.camera_height_vx));
|
|
const camera_rotation = vm.Quaternion.mulQuaternion(
|
|
.initRotation(.XY, self.player.yaw_turns),
|
|
.initRotation(.YZ, self.player.pitch_turns),
|
|
);
|
|
const camera_aspect_ratio = framebuffer_size.x / framebuffer_size.y;
|
|
const camera_yscale = 1.0 / @tan(0.5 * self.player.vertical_fov_deg * std.math.rad_per_deg);
|
|
const camera_xscale = camera_yscale / camera_aspect_ratio;
|
|
|
|
const matrix_ws_to_vs = vm.Matrix4x4
|
|
.initTranslationRotation(camera_position, camera_rotation)
|
|
.inverseOrthonormal();
|
|
|
|
// zig fmt: off
|
|
const matrix_vs_to_cs = vm.Matrix4x4.init(
|
|
camera_xscale, 0, 0, 0,
|
|
0, 0, 0, 1,
|
|
0, -camera_yscale, 0, 0,
|
|
0, 0, camera_near_plane, 0,
|
|
);
|
|
// zig fmt: on
|
|
|
|
const ambient_light = vm.Vector3.init(0.01, 0.01, 0.01);
|
|
|
|
const global_uniforms_data: shaders.GlobalUniforms = .{
|
|
.matrixWStoVS = matrix_ws_to_vs,
|
|
.matrixVStoCS = matrix_vs_to_cs,
|
|
.ambientLight = ambient_light,
|
|
};
|
|
|
|
const staging_memory = try self.global_uniforms_staging_buffer.map(self.engine);
|
|
@memcpy(staging_memory, std.mem.asBytes(&global_uniforms_data));
|
|
self.global_uniforms_staging_buffer.unmap(self.engine);
|
|
|
|
try self.deferred_command_buffers.ensureUnusedCapacity(self.allocator, 1);
|
|
const global_uniforms_transfer_command_buffer = try CommandBuffer.init(self.engine, .transfer);
|
|
self.deferred_command_buffers.appendAssumeCapacity(global_uniforms_transfer_command_buffer);
|
|
|
|
try global_uniforms_transfer_command_buffer.beginCommandBuffer();
|
|
global_uniforms_transfer_command_buffer.copyBuffer(
|
|
self.global_uniforms_staging_buffer.buffer,
|
|
self.global_uniforms.buffer,
|
|
&.{
|
|
.{
|
|
.src_offset = 0,
|
|
.dst_offset = 0,
|
|
.size = @sizeOf(shaders.GlobalUniforms),
|
|
},
|
|
},
|
|
);
|
|
try global_uniforms_transfer_command_buffer.endCommandBuffer();
|
|
|
|
try global_uniforms_transfer_command_buffer.submit(self.engine, .{
|
|
.signal_semaphores = &.{self.global_uniforms_transfer_semaphores[self.swapchain.image_index.?]},
|
|
});
|
|
|
|
try self.deferred_command_buffers.ensureUnusedCapacity(self.allocator, 1);
|
|
const command_buffer: CommandBuffer = try .init(self.engine, .graphics);
|
|
self.deferred_command_buffers.appendAssumeCapacity(command_buffer);
|
|
|
|
try command_buffer.beginCommandBuffer();
|
|
{
|
|
command_buffer.beginRenderPass(.{
|
|
.render_pass = self.swapchain.render_pass,
|
|
.framebuffer = self.swapchain.swapchain_images[self.swapchain.image_index.?].framebuffer,
|
|
.render_area = .{
|
|
.offset = .{ .x = 0, .y = 0 },
|
|
.extent = extent,
|
|
},
|
|
.clear_values = &.{
|
|
.{
|
|
.color = .{
|
|
.float_32 = .{ 0, 0, 0, 0 },
|
|
},
|
|
},
|
|
.{
|
|
.depth_stencil = .{
|
|
.depth = 0,
|
|
.stencil = 0,
|
|
},
|
|
},
|
|
},
|
|
}, .@"inline");
|
|
defer command_buffer.endRenderPass();
|
|
|
|
command_buffer.setViewport(0, &.{
|
|
.{
|
|
.x = 0,
|
|
.y = 0,
|
|
.width = @floatFromInt(extent.width),
|
|
.height = @floatFromInt(extent.height),
|
|
.min_depth = 0,
|
|
.max_depth = 1,
|
|
},
|
|
});
|
|
command_buffer.setScissor(0, &.{
|
|
.{
|
|
.offset = .{ .x = 0, .y = 0 },
|
|
.extent = extent,
|
|
},
|
|
});
|
|
|
|
command_buffer.bindPipeline(.graphics, self.pipeline);
|
|
try command_buffer.bindVertexBuffers(0, &.{
|
|
.{
|
|
.buffer = self.vertex_buffer.buffer,
|
|
.offset = 0,
|
|
},
|
|
});
|
|
command_buffer.bindIndexBuffer(self.index_buffer.buffer, 0, .uint16);
|
|
command_buffer.bindDescriptorSet(.graphics, self.pipeline_layout, 0, self.global_descriptor_set, null);
|
|
|
|
var it = self.chunks.chunks.valueIterator();
|
|
while (it.next()) |chunk| {
|
|
chunk.draw(self.pipeline_layout, command_buffer);
|
|
}
|
|
|
|
try self.skybox.bind(command_buffer, extent);
|
|
self.skybox.draw(command_buffer);
|
|
}
|
|
try command_buffer.endCommandBuffer();
|
|
|
|
self.swapchain.present(self.engine, .{
|
|
.command_buffer = command_buffer,
|
|
.wait_semaphores = &.{
|
|
.{
|
|
.semaphore = self.global_uniforms_transfer_semaphores[self.swapchain.image_index.?],
|
|
.stage_flags = .{ .vertex_shader_bit = true },
|
|
},
|
|
},
|
|
}) catch |err| switch (err) {
|
|
error.OutOfDateKHR => return self.recreateSwapchain(),
|
|
else => return err,
|
|
};
|
|
}
|
|
|
|
fn recreateSwapchain(self: *Game) !void {
|
|
try self.swapchain.recreate(self.engine);
|
|
for (self.global_uniforms_transfer_semaphores, 0..) |*semaphore, i| {
|
|
self.engine.destroySemaphore(semaphore.*);
|
|
semaphore.* = try self.engine.createSemaphore();
|
|
self.engine.setObjectName(semaphore.*, "S Transfer[{d}]", .{i});
|
|
}
|
|
}
|