49 lines
1.4 KiB
Plaintext
49 lines
1.4 KiB
Plaintext
#include "aorii_util.slang"
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struct FontParams {
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float smoothing; // 平滑度
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float thickness; // 字体粗细
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float outline_width; // 描边宽度
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float4 outline_color; // 描边颜色
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}
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ParameterBlock<FontParams> font_param : register(b1);
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struct PSInput {
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float4 position : SV_Position;
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float2 uv : TEXCOORD0;
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float4 color : COLOR0;
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float2 altas_uv : TEXCOORD1;
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float altas_index : TEXCOORD2;
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float2 char_size : TEXCOORD3;
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};
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struct Constants {
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matrix transform;
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};
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ParameterBlock<Constants> param_buffer : register(b0);
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PSInput vertex_main(VSInput input) {
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PSInput output;
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output.position = mul(float4(input.position, 0.0f, 1.0f), param_buffer.transform);
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output.uv = input.uv;
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output.color = input.color;
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output.altas_uv = float2(input.param_a.x, input.param_a.y);
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output.altas_index = input.param_a.z;
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output.char_size = float2(input.param_b.x, input.param_b.y);
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return output;
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}
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Texture2DArray atlas_texture : register(t0);
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SamplerState sampler_state : register(s0);
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float4 pixel_main(PSInput input) : SV_Target {
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float2 uv = input.altas_uv + input.uv / 64;
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float distance = atlas_texture.Sample(sampler_state, float3(uv, input.altas_index)).r;
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// return float4(distance, distance, distance, 1.0);
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float alpha = smoothstep(0.49, 0.51, distance);
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float4 color = input.color;
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color.a *= alpha;
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return color;
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}
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