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GPU/D3D11: Fix non-vertical line rendering at >1x scale

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This commit is contained in:
Connor McLaughlin 2020-03-08 00:03:31 +10:00
parent 34ae0dae13
commit e19175edae
1 changed files with 9 additions and 5 deletions
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14
src/core/gpu_hw_shadergen.cpp
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@ -642,7 +642,7 @@ std::string GPU_HW_ShaderGen::GenerateBatchLineExpandGeometryShader()
else
{
ss << R"(
CONSTANT float2 OFFSET = (1.0 / float2(VRAM_SIZE)) * float2(RESOLUTION_SCALE, RESOLUTION_SCALE);
CONSTANT float2 WIDTH = (1.0 / float2(VRAM_SIZE)) * float2(RESOLUTION_SCALE, RESOLUTION_SCALE);
struct Vertex
{
@ -655,24 +655,28 @@ void main(line Vertex input[2], inout TriangleStream<Vertex> output)
{
Vertex v;
float2 dir = normalize(input[1].pos.xy - input[0].pos.xy);
float2 normal = cross(float3(dir, 0.0), float3(0.0, 0.0, 1.0)).xy * WIDTH;
float4 offset = float4(normal, 0.0, 0.0);
// top-left
v.col0 = input[0].col0;
v.pos = input[0].pos + float4(-OFFSET.x, +OFFSET.y, 0.0, 0.0);
v.pos = input[0].pos - offset;
output.Append(v);
// top-right
v.col0 = input[0].col0;
v.pos = input[0].pos + float4(+OFFSET.x, +OFFSET.y, 0.0, 0.0);
v.pos = input[0].pos + offset;
output.Append(v);
// bottom-left
v.col0 = input[1].col0;
v.pos = input[1].pos + float4(-OFFSET.x, -OFFSET.y, 0.0, 0.0);
v.pos = input[1].pos - offset;
output.Append(v);
// bottom-right
v.col0 = input[1].col0;
v.pos = input[1].pos + float4(+OFFSET.x, -OFFSET.y, 0.0, 0.0);
v.pos = input[1].pos + offset;
output.Append(v);
output.RestartStrip();