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Inverted view matrix

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This commit is contained in:
Lorenzo Torres 2025-08-06 16:08:36 +02:00
parent fb031e8a66
commit c3a85ce50f
2 changed files with 3 additions and 2 deletions
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3
src/math.zig
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@ -43,7 +43,8 @@ pub const Matrix = struct {
pub fn lookAt(eye: [3]f32, target: [3]f32, arbitrary_up: [3]f32) Matrix { pub fn lookAt(eye: [3]f32, target: [3]f32, arbitrary_up: [3]f32) Matrix {
const t: @Vector(3, f32) = target; const t: @Vector(3, f32) = target;
const e: @Vector(3, f32) = eye; var e: @Vector(3, f32) = eye;
e = -e;
const u: @Vector(3, f32) = arbitrary_up; const u: @Vector(3, f32) = arbitrary_up;
const forward = normalize(t - e); const forward = normalize(t - e);
const right = normalize(cross(forward, u)); const right = normalize(cross(forward, u));

2
src/sideros.zig
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@ -45,7 +45,7 @@ fn init_mods() void {
export fn sideros_init(init: api.GameInit) callconv(.c) void { export fn sideros_init(init: api.GameInit) callconv(.c) void {
pool = ecs.Pool.init(allocator, .{ pool = ecs.Pool.init(allocator, .{
.camera = .{ .camera = .{
.position = .{ 0.0, 0.0, 5.0 }, .position = .{ 5.0, 5.0, 5.0 },
.target = .{ 0.0, 0.0, 0.0 }, .target = .{ 0.0, 0.0, 0.0 },
}, },
.renderer = undefined, .renderer = undefined,