53 lines
1.2 KiB
HLSL
53 lines
1.2 KiB
HLSL
#include "common.hlsli"
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uniform float3x4 m_xform;
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uniform float3x4 m_xform_v;
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uniform float4 consts;
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uniform float4 wind;
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uniform float4 wave;
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uniform float4 c_scale;
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uniform float4 c_bias;
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uniform float2 c_sun;
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void main(in v_tree I, out p_bumped_new O)
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{
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float4 pos = float4(mul(m_xform, I.P).xyz, 1.0);
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float2 tc = I.tc.xy * consts.xy;
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float sun = I.Nh.w * c_sun.x + c_sun.y;
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float hemi = I.Nh.w * c_scale.w + c_bias.w;
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#ifdef USE_TREEWAVE
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float base = m_xform._24;
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float H = pos.y - base;
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float dp = calc_cyclic(wave.w + dot(pos, wave.xyz));
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float frac = I.tc.z * consts.x;
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float inten = H * dp;
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pos.xz += calc_xz_wave(wind.xz * inten, frac);
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#endif
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float3 Pe = mul(m_V, pos);
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O.tcdh = float4(tc.xy, hemi, sun);
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O.position = float4(Pe, 1.0f);
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float3 N = unpack_bx4(I.Nh);
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float3 T = unpack_bx4(I.T);
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float3 B = unpack_bx4(I.B);
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float3x3 xform = mul((float3x3)m_xform_v, float3x3(
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T.x, B.x, N.x,
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T.y, B.y, N.y,
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T.z, B.z, N.z));
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O.M1 = xform[0];
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O.M2 = xform[1];
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O.M3 = xform[2];
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O.hpos = mul(m_VP, pos);
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}
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