EmilandClaude Sonnet 5
0c2547a804
Replaces M2's single hardcoded NDC-space triangle with a real perspective pipeline: ICameraService/CameraService (fixed camera at (0,3,6) looking at the origin), a QuadRenderer marker component, and a Draw() that iterates world.Query<QuadRenderer>() to draw every such GameObject at its own WorldMatrix. Needed as the foundation for M3's gizmos, which have to map a screen-space drag onto a real 3D axis — a 2D quad and no camera can't support that. Two real bugs found and fixed empirically, not designed in from the start: - SystemAccessScope correctly threw on Draw() querying QuadRenderer without declaring Reads<QuadRenderer>() on its Schedule.Add registration — the safety net catching a real omission, exactly as designed. - UniformMatrix4 needed transpose:true, not false. System.Numerics.Matrix4x4 is row-major in memory; glUniformMatrix4fv with transpose=GL_FALSE reads that layout as column-major instead. With transpose=false the quad simply didn't render — no error, no crash, just a blank screen. Confirmed via a correctly perspective-foreshortened, texture-mapped quad after the fix. Also adds samples/WindowDemo/scene.json (a single Quad GameObject with a QuadRenderer) so the new pipeline has something real to draw, loaded via the existing --scene flag. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N1qPfzq8TDCUMFMV3UwV5N
24 lines
691 B
C#
24 lines
691 B
C#
using System.Numerics;
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using Engine.Render.Contracts;
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using Engine.Windowing.Contracts;
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namespace Engine.Render;
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internal sealed class CameraService(IEngineWindow window) : ICameraService
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{
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public Vector3 Position { get; set; } = new(0f, 3f, 6f);
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public Vector3 Target { get; set; } = Vector3.Zero;
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public Matrix4x4 View => Matrix4x4.CreateLookAt(Position, Target, Vector3.UnitY);
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public Matrix4x4 Projection
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{
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get
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{
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var size = window.Native.FramebufferSize;
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var aspect = size.Y == 0 ? 1f : (float)size.X / size.Y;
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return Matrix4x4.CreatePerspectiveFieldOfView(MathF.PI / 4f, aspect, 0.1f, 100f);
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}
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}
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}
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