56 lines
1.6 KiB
HLSL
56 lines
1.6 KiB
HLSL
/* Copyright (c) 2025, Sascha Willems
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 the "License";
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
struct VSOutput
|
|
{
|
|
float4 Pos : SV_POSITION;
|
|
float3 Normal : NORMAL0;
|
|
float4 Color : COLOR0;
|
|
float3 WorldPos : POS0;
|
|
};
|
|
|
|
[[vk::constant_id(0)]] const float NEAR_PLANE = 0.1;
|
|
[[vk::constant_id(1)]] const float FAR_PLANE = 256.0;
|
|
|
|
float linearDepth(float depth)
|
|
{
|
|
float z = depth * 2.0f - 1.0f;
|
|
return (2.0f * NEAR_PLANE * FAR_PLANE) / (FAR_PLANE + NEAR_PLANE - z * (FAR_PLANE - NEAR_PLANE));
|
|
}
|
|
|
|
struct FSOutput
|
|
{
|
|
float4 Color : SV_TARGET0;
|
|
float4 PositionDepth : SV_TARGET1;
|
|
float4 Normal : SV_TARGET2;
|
|
float4 Albedo : SV_TARGET3;
|
|
};
|
|
|
|
FSOutput main(VSOutput input)
|
|
{
|
|
FSOutput output;
|
|
float3 N = normalize(input.Normal);
|
|
N.y = -N.y;
|
|
output.Normal = float4(N, 1.0);
|
|
output.Albedo = input.Color;
|
|
// Store linearized depth in alpha component
|
|
output.PositionDepth.rgb = input.WorldPos;
|
|
output.PositionDepth.a = linearDepth(input.Pos.z);
|
|
// Write color attachments to avoid undefined behaviour (validation error)
|
|
output.Color = (1.0).rrrr;
|
|
return output;
|
|
} |