cnq3/code/renderer/shaders/crp/ui.hlsl

63 lines
1.7 KiB
HLSL

/*
===========================================================================
Copyright (C) 2023 Gian 'myT' Schellenbaum
This file is part of Challenge Quake 3 (CNQ3).
Challenge Quake 3 is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
Challenge Quake 3 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Challenge Quake 3. If not, see <https://www.gnu.org/licenses/>.
===========================================================================
*/
// UI rendering
cbuffer RootConstants : register(b0)
{
float2 scale;
uint textureIndex;
uint samplerIndex;
};
struct VOut
{
float4 position : SV_Position;
float2 texCoords : TEXCOORD0;
float4 color : COLOR0;
};
struct VIn
{
float2 position : POSITION;
float2 texCoords : TEXCOORD0;
float4 color : COLOR0;
};
VOut vs(VIn input)
{
const float2 position = input.position * scale;
VOut output;
output.position = float4(position.x - 1.0, 1.0 - position.y, 0.0, 1.0);
output.texCoords = input.texCoords;
output.color = input.color;
return output;
}
float4 ps(VOut input) : SV_Target
{
Texture2D texture0 = ResourceDescriptorHeap[textureIndex];
SamplerState sampler0 = SamplerDescriptorHeap[samplerIndex];
float4 result = input.color * texture0.Sample(sampler0, input.texCoords);
return result;
}