43 lines
812 B
Text
43 lines
812 B
Text
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uniform float4x4 ViewProj;
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uniform texture2d tex_a;
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uniform texture2d tex_b;
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uniform float2 swipe_val;
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sampler_state textureSampler {
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Filter = Linear;
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AddressU = Clamp;
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AddressV = Clamp;
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};
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struct VertData {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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VertData VSDefault(VertData v_in)
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{
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VertData vert_out;
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vert_out.pos = mul(float4(v_in.pos.xyz, 1.0), ViewProj);
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vert_out.uv = v_in.uv;
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return vert_out;
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}
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float4 PSSwipe(VertData v_in) : TARGET
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{
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float2 swipe_uv = v_in.uv + swipe_val;
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return (swipe_uv.x - saturate(swipe_uv.x) != 0.0) ||
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(swipe_uv.y - saturate(swipe_uv.y) != 0.0)
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? tex_b.Sample(textureSampler, v_in.uv)
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: tex_a.Sample(textureSampler, swipe_uv);
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}
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technique Swipe
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{
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pass
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{
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vertex_shader = VSDefault(v_in);
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pixel_shader = PSSwipe(v_in);
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}
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}
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