adding fragdepth propagation, adjusting attachment sizing

2026-06-19 22:20:59 +02:00
parent 59716cc794
commit 4d4578ff46
9 changed files with 129 additions and 65 deletions
@@ -179,7 +179,10 @@ inline fn run(data: RunData) !void {
            const z = (b0 * data.v0.position[2]) + (b1 * data.v1.position[2]) + (b2 * data.v2.position[2]);
            const frag_w = (b0 / data.v0.position[3]) + (b1 / data.v1.position[3]) + (b2 / data.v2.position[3]);

-            var outputs = std.mem.zeroes([spv.SPIRV_MAX_OUTPUT_LOCATIONS][@sizeOf(F32x4)]u8);
+            var fragment_result: fragment.InvocationResult = .{
+                .outputs = std.mem.zeroes([spv.SPIRV_MAX_OUTPUT_LOCATIONS][@sizeOf(F32x4)]u8),
+                .depth = null,
+            };
            if (data.has_fragment_shader) {
                const inputs = try common.interpolateVertexOutputs(data.allocator, &data.v0, &data.v1, &data.v2, b0, b1, b2);
                const derivative_inputs: ?fragment.DerivativeInputs = if (data.fragment_uses_derivatives) blk: {
@@ -215,7 +218,7 @@ inline fn run(data: RunData) !void {
                    break :blk derivatives;
                } else null;

-                outputs = fragment.shaderInvocation(
+                fragment_result = fragment.shaderInvocation(
                    data.allocator,
                    data.draw_call,
                    data.batch_id,
@@ -239,7 +242,7 @@ inline fn run(data: RunData) !void {
            }

            try common.writeToTargets(
-                outputs,
+                fragment_result.outputs,
                data.draw_call,
                data.color_attachment_access,
                data.depth_attachment_access,
@@ -247,7 +250,7 @@ inline fn run(data: RunData) !void {
                data.front_face,
                @intCast(x),
                @intCast(y),
-                z,
+                fragment_result.depth orelse z,
            );
        }
    }