render-zig

A 3D rendering engine written in Zig
git clone git://git.christianermann.dev/render-zig
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transform.zig (665B)

      1 const std = @import("std");
      2 const gpu = @import("mach_gpu");
      3 
      4 const f32x3 = @import("main.zig").f32x3;
      5 const mat4 = @import("main.zig").mat4;
      6 
      7 const Self = @This();
      8 
      9 scale: f32x3 = .{ 1, 1, 1 },
     10 offset: f32x3 = .{ 0, 0, 0 },
     11 dirty: bool = false,
     12 
     13 pub fn dirty(self: *const Self) bool {
     14     return self.dirty;
     15 }
     16 
     17 pub fn matrix(self: *const Self) mat4 {
     18     return .{
     19         .{ self.scale[0], 0, 0, 0 },
     20         .{ 0, self.scale[1], 0, 0 },
     21         .{ 0, 0, self.scale[2], 0 },
     22         .{ self.offset[0], self.offset[1], self.offset[2], 1 },
     23     };
     24 }
     25 
     26 pub fn translate(self: *Self, translation: f32x3) void {
     27     self.offset += translation;
     28     self.dirty = true;
     29 }