65 lines
1.6 KiB
Plaintext
65 lines
1.6 KiB
Plaintext
import Common;
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struct GlyphInstanceData
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{
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float x;
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float y;
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float z;
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float width;
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float height;
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uint glyphIndex;
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};
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struct TextData
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{
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StructuredBuffer<GlyphInstanceData> glyphs;
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SamplerState glyphSampler;
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Texture2D<float> glyphTextures[];
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};
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ParameterBlock<TextData> pText;
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struct VertexInput
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{
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uint vertexId : SV_VertexID;
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uint instanceId : SV_InstanceID;
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};
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struct VertexOutput
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{
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float4 position : SV_Position;
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float2 texCoords : TEXCOORD;
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uint glyphIndex : GLYPHINDEX;
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};
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[shader("vertex")]
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VertexOutput vertexMain(VertexInput input)
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{
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float xpos = pText.glyphs[input.instanceId].x;
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float ypos = pText.glyphs[input.instanceId].y;
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float w = pText.glyphs[input.instanceId].width;
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float h = pText.glyphs[input.instanceId].height;
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const float4 coordinates[4] = {
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float4(xpos, ypos, 0, 0),
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float4(xpos, ypos + h, 0, 1),
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float4(xpos + w, ypos, 1, 0),
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float4(xpos + w, ypos + h, 1, 1),
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};
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float4 vertex = coordinates[input.vertexId];
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VertexOutput output;
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output.texCoords = vertex.zw;
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output.position = mul(pViewParams.projectionMatrix, float4(vertex.xy, pText.glyphs[input.instanceId].z-1, 1));
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output.glyphIndex = pText.glyphs[input.instanceId].glyphIndex;
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return output;
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}
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[shader("fragment")]
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float4 fragmentMain(
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float4 position : SV_Position,
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float2 texCoords : TEXCOORD,
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uint glyphIndex : GLYPHINDEX
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) : SV_Target
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{
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return float4(0,0,0,pText.glyphTextures[glyphIndex].Sample(pText.glyphSampler, texCoords));
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} |