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Rransforms are all sent to the gpu with one buffer

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Lorenzo Torres 2025-08-09 18:51:11 +02:00
parent 9a5ffc70a5
commit d010954abb
4 changed files with 29 additions and 9 deletions
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13
src/rendering/Renderer.zig
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@ -2,6 +2,7 @@ const math = @import("math");
const ecs = @import("ecs");
const std = @import("std");
const vk = @import("vulkan.zig");
const c = vk.c;
const Mesh = @import("Mesh.zig");
const Texture = vk.Texture;
const Camera = @import("Camera.zig");
@ -83,8 +84,8 @@ pub fn init(allocator: Allocator, instance_handle: vk.c.VkInstance, surface_hand
.swapchain = swapchain,
.graphics_pipeline = graphics_pipeline,
.current_frame = 0,
.transform = math.Transform.init(.{0.0, 0.0, 0.0}, .{1.0, 1.0, 1.0}, .{0.0, 0.0, 0.0}),
.transform2 = math.Transform.init(.{0.0, 3.0, 3.0}, .{0.5, 0.5, 0.5}, .{0.0, 0.0, 0.0}),
.transform = math.Transform.init(.{0.5, 0.0, 0.0}, .{0.5, 0.5, 0.5}, .{0.0, 0.0, 0.0}),
.transform2 = math.Transform.init(.{-1.0, 0.0, 0.0}, .{0.5, 0.5, 0.5}, .{0.0, 0.0, 0.0}),
.previous_time = try std.time.Instant.now(),
.mesh = mesh,
};
@ -120,6 +121,7 @@ pub fn render(pool: *ecs.Pool) anyerror!void {
const transform_memory = renderer.graphics_pipeline.transform_buffer.mapped_memory;
transform_memory[0] = renderer.transform;
transform_memory[1] = renderer.transform2;
try renderer.device.waitFence(renderer.current_frame);
const image = try renderer.swapchain.nextImage(renderer.device, renderer.current_frame);
@ -131,7 +133,12 @@ pub fn render(pool: *ecs.Pool) anyerror!void {
renderer.device.bindIndexBuffer(renderer.graphics_pipeline.index_buffer, renderer.current_frame);
renderer.device.bindDescriptorSets(renderer.graphics_pipeline, renderer.current_frame, 0);
var lights: u32 = 2;
renderer.device.pushConstant(renderer.graphics_pipeline, 0, 0, 4, @ptrCast(&lights), renderer.current_frame);
renderer.device.pushConstant(renderer.graphics_pipeline, c.VK_SHADER_STAGE_FRAGMENT_BIT, 0, 4, @ptrCast(&lights), renderer.current_frame);
var transform: u32 = 0;
renderer.device.pushConstant(renderer.graphics_pipeline, c.VK_SHADER_STAGE_VERTEX_BIT, 4, 4, @ptrCast(&transform), renderer.current_frame);
renderer.device.draw(renderer.mesh.index_count, renderer.current_frame, renderer.mesh);
transform = 1;
renderer.device.pushConstant(renderer.graphics_pipeline, c.VK_SHADER_STAGE_VERTEX_BIT, 4, 4, @ptrCast(&transform), renderer.current_frame);
renderer.device.draw(renderer.mesh.index_count, renderer.current_frame, renderer.mesh);
renderer.render_pass.end(renderer.device, renderer.current_frame);
try renderer.device.endCommand(renderer.current_frame);