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139 行
5.3 KiB
139 行
5.3 KiB
#ifndef __LIGHTINGUTILS_H__
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#define __LIGHTINGUTILS_H__
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#include "..\common\ShaderBase.h"
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#include "LightDefinitions.cs.hlsl"
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uniform float4x4 g_mViewToWorld;
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uniform float4x4 g_mWorldToView; // used for reflection only
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uniform float4x4 g_mScrProjection;
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uniform float4x4 g_mInvScrProjection;
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uniform uint g_widthRT;
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uniform uint g_heightRT;
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float3 GetViewPosFromLinDepth(float2 v2ScrPos, float fLinDepth)
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{
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float fSx = g_mScrProjection[0].x;
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//float fCx = g_mScrProjection[2].x;
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float fCx = g_mScrProjection[0].z;
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float fSy = g_mScrProjection[1].y;
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//float fCy = g_mScrProjection[2].y;
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float fCy = g_mScrProjection[1].z;
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#if USE_LEFTHAND_CAMERASPACE
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return fLinDepth*float3( ((v2ScrPos.x-fCx)/fSx), ((v2ScrPos.y-fCy)/fSy), 1.0 );
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#else
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return fLinDepth*float3( -((v2ScrPos.x+fCx)/fSx), -((v2ScrPos.y+fCy)/fSy), 1.0 );
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#endif
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}
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float GetLinearZFromSVPosW(float posW)
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{
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#if USE_LEFTHAND_CAMERASPACE
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float linZ = posW;
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#else
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float linZ = -posW;
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#endif
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return linZ;
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}
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float GetLinearDepth(float zDptBufSpace) // 0 is near 1 is far
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{
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// todo (simplify): m22 is zero and m23 is +1/-1 (depends on left/right hand proj)
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float m22 = g_mInvScrProjection[2].z, m23 = g_mInvScrProjection[2].w;
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float m32 = g_mInvScrProjection[3].z, m33 = g_mInvScrProjection[3].w;
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return (m22*zDptBufSpace+m23) / (m32*zDptBufSpace+m33);
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//float3 vP = float3(0.0f,0.0f,zDptBufSpace);
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//float4 v4Pres = mul(g_mInvScrProjection, float4(vP,1.0));
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//return v4Pres.z / v4Pres.w;
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}
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bool SampleDebugFont(int2 pixCoord, uint digit)
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{
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if (pixCoord.x < 0 || pixCoord.y < 0 || pixCoord.x >= 5 || pixCoord.y >= 9 || digit > 9)
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return false;
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#define PACK_BITS25(_x0,_x1,_x2,_x3,_x4,_x5,_x6,_x7,_x8,_x9,_x10,_x11,_x12,_x13,_x14,_x15,_x16,_x17,_x18,_x19,_x20,_x21,_x22,_x23,_x24) (_x0|(_x1<<1)|(_x2<<2)|(_x3<<3)|(_x4<<4)|(_x5<<5)|(_x6<<6)|(_x7<<7)|(_x8<<8)|(_x9<<9)|(_x10<<10)|(_x11<<11)|(_x12<<12)|(_x13<<13)|(_x14<<14)|(_x15<<15)|(_x16<<16)|(_x17<<17)|(_x18<<18)|(_x19<<19)|(_x20<<20)|(_x21<<21)|(_x22<<22)|(_x23<<23)|(_x24<<24))
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#define _ 0
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#define x 1
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uint fontData[9][2] = {
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{ PACK_BITS25(_,_,x,_,_, _,_,x,_,_, _,x,x,x,_, x,x,x,x,x, _,_,_,x,_), PACK_BITS25(x,x,x,x,x, _,x,x,x,_, x,x,x,x,x, _,x,x,x,_, _,x,x,x,_) },
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{ PACK_BITS25(_,x,_,x,_, _,x,x,_,_, x,_,_,_,x, _,_,_,_,x, _,_,_,x,_), PACK_BITS25(x,_,_,_,_, x,_,_,_,x, _,_,_,_,x, x,_,_,_,x, x,_,_,_,x) },
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{ PACK_BITS25(x,_,_,_,x, x,_,x,_,_, x,_,_,_,x, _,_,_,x,_, _,_,x,x,_), PACK_BITS25(x,_,_,_,_, x,_,_,_,_, _,_,_,x,_, x,_,_,_,x, x,_,_,_,x) },
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{ PACK_BITS25(x,_,_,_,x, _,_,x,_,_, _,_,_,_,x, _,_,x,_,_, _,x,_,x,_), PACK_BITS25(x,_,x,x,_, x,_,_,_,_, _,_,_,x,_, x,_,_,_,x, x,_,_,_,x) },
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{ PACK_BITS25(x,_,_,_,x, _,_,x,_,_, _,_,_,x,_, _,x,x,x,_, _,x,_,x,_), PACK_BITS25(x,x,_,_,x, x,x,x,x,_, _,_,x,_,_, _,x,x,x,_, _,x,x,x,x) },
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{ PACK_BITS25(x,_,_,_,x, _,_,x,_,_, _,_,x,_,_, _,_,_,_,x, x,_,_,x,_), PACK_BITS25(_,_,_,_,x, x,_,_,_,x, _,_,x,_,_, x,_,_,_,x, _,_,_,_,x) },
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{ PACK_BITS25(x,_,_,_,x, _,_,x,_,_, _,x,_,_,_, _,_,_,_,x, x,x,x,x,x), PACK_BITS25(_,_,_,_,x, x,_,_,_,x, _,x,_,_,_, x,_,_,_,x, _,_,_,_,x) },
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{ PACK_BITS25(_,x,_,x,_, _,_,x,_,_, x,_,_,_,_, x,_,_,_,x, _,_,_,x,_), PACK_BITS25(x,_,_,_,x, x,_,_,_,x, _,x,_,_,_, x,_,_,_,x, x,_,_,_,x) },
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{ PACK_BITS25(_,_,x,_,_, x,x,x,x,x, x,x,x,x,x, _,x,x,x,_, _,_,_,x,_), PACK_BITS25(_,x,x,x,_, _,x,x,x,_, _,x,_,_,_, _,x,x,x,_, _,x,x,x,_) }
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};
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#undef _
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#undef x
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#undef PACK_BITS25
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return (fontData[8 - pixCoord.y][digit >= 5] >> ((digit % 5) * 5 + pixCoord.x)) & 1;
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}
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bool SampleDebugFontNumber(int2 coord, uint number)
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{
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coord.y -= 4;
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if (number <= 9)
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{
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return SampleDebugFont(coord - int2(6, 0), number);
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}
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else
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{
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return (SampleDebugFont(coord, number / 10) | SampleDebugFont(coord - int2(6, 0), number % 10));
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}
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}
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float3 OverlayHeatMap(uint2 pixCoord, uint numLights, float3 c)
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{
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/////////////////////////////////////////////////////////////////////
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//
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const float4 kRadarColors[12] =
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{
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float4(0.0,0.0,0.0,0.0), // black
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float4(0.0,0.0,0.6,0.5), // dark blue
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float4(0.0,0.0,0.9,0.5), // blue
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float4(0.0,0.6,0.9,0.5), // light blue
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float4(0.0,0.9,0.9,0.5), // cyan
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float4(0.0,0.9,0.6,0.5), // blueish green
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float4(0.0,0.9,0.0,0.5), // green
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float4(0.6,0.9,0.0,0.5), // yellowish green
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float4(0.9,0.9,0.0,0.5), // yellow
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float4(0.9,0.6,0.0,0.5), // orange
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float4(0.9,0.0,0.0,0.5), // red
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float4(1.0,0.0,0.0,0.9) // strong red
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};
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float maxNrLightsPerTile = 31;
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int nColorIndex = numLights == 0 ? 0 : (1 + (int)floor(10 * (log2((float)numLights) / log2(maxNrLightsPerTile))));
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nColorIndex = nColorIndex<0 ? 0 : nColorIndex;
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float4 col = nColorIndex>11 ? float4(1.0, 1.0, 1.0, 1.0) : kRadarColors[nColorIndex];
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int2 coord = pixCoord - int2(1, 1);
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float3 color = lerp(c, pow(col.xyz, 2.2), 0.3*col.w);
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if(numLights > 0)
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{
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if (SampleDebugFontNumber(coord, numLights)) // Shadow
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color = 0.0f;
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if (SampleDebugFontNumber(coord + 1, numLights)) // Text
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color = 1.0f;
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}
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return color;
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}
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#endif
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