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obs-studio/frontend/data/striped_line.effect
Lain 9b0ac7c01c frontend/widgets: Optimize preview primitive rendering
Certain draw calls were creating/destroying vertex buffers. Every call.
That's kind of not a great thing to do, so instead use the new
gs_draw_quadf() function to optimize rendering and reduce the need for
swapping vertex buffers.

Also uses a shader for DrawStripedLine so it does not have to split it
up into separate draw calls.
2025-04-23 15:23:29 -04:00

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uniform float4x4 ViewProj;
uniform float4 color = {1.0, 1.0, 1.0, 1.0};
uniform float2 size;
uniform float2 count_inv;
struct VertInOut {
float4 pos : POSITION;
float2 uv : TEXCOORD0;
};
VertInOut VSStripedLine(VertInOut vert_in)
{
VertInOut vert_out;
vert_out.pos = mul(float4(vert_in.pos.xyz, 1.0), ViewProj);
vert_out.uv = vert_in.uv;
return vert_out;
}
float4 PSStripedLine(VertInOut vert_in) : TARGET
{
float2 multiplier = floor(fmod(vert_in.uv * size * count_inv, float2(2.0, 2.0)));
if (size.x == 0.0) {
multiplier.x = 1.0;
} else {
multiplier.y = 1.0;
}
return color * multiplier.xxxx * multiplier.yyyy;
}
technique StripedLine
{
pass
{
vertex_shader = VSStripedLine(vert_in);
pixel_shader = PSStripedLine(vert_in);
}
}