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BurningVideo 0.51 - NormalMap

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git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6101 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
engineer_apple
2020-02-27 00:17:46 +00:00
parent 725391bf50
commit 704c9eec83
5 changed files with 48 additions and 119 deletions
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32
source/Irrlicht/CTRNormalMap.cpp
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@@ -229,8 +229,11 @@ void CTRNormalMap::fragmentShader()
f32 inversew = FIX_POINT_F32_MUL;
tFixPoint tx0, tx1;
tFixPoint ty0, ty1;
tFixPoint tx0, ty0;
#ifdef IPOL_T1
tFixPoint tx1, ty1;
#endif
tFixPoint r0, g0, b0;
tFixPoint r1, g1, b1;
@@ -296,11 +299,10 @@ void CTRNormalMap::fragmentShader()
tx1 = tofix ( line.t[1][0].x,inversew);
ty1 = tofix ( line.t[1][0].y,inversew);
// diffuse map
getSample_texture ( r0, g0, b0, &IT[0], tx0, ty0 );
// normal map
// normal map ( same texcoord0 but different mipmapping)
getSample_texture ( r1, g1, b1, &IT[1], tx1, ty1 );
r1 = ( r1 - FIX_POINT_HALF_COLOR) >> (COLOR_MAX_LOG2-1);
@@ -313,30 +315,22 @@ void CTRNormalMap::fragmentShader()
lz = tofix ( line.l[0][0].z, inversew );
// DOT 3 Normal Map light in tangent space
ndotl = saturateFix ( FIX_POINT_HALF_COLOR + ((imulFix_simple(r1,lx) + imulFix_simple(g1,ly) + imulFix_simple(b1,lz) ) << (COLOR_MAX_LOG2-1)) );
//max(dot(LightVector, Normal), 0.0);
ndotl = clampfix_mincolor( (imulFix_simple(r1,lx) + imulFix_simple(g1,ly) + imulFix_simple(b1,lz) ) );
#endif
#ifdef IPOL_C0
//getSample_color(a3,r3,g3,b3, line.c[0][0],inversew);
//a3 = tofix(line.c[0][0].x, inversew);
//LightColor[0]
r3 = tofix(line.c[0][0].y, inversew);
g3 = tofix(line.c[0][0].z, inversew);
b3 = tofix(line.c[0][0].w, inversew);
// N . L
r2 = imulFix ( imulFix_tex1 ( r0, ndotl ), r3 );
g2 = imulFix ( imulFix_tex1 ( g0, ndotl ), g3 );
b2 = imulFix ( imulFix_tex1 ( b0, ndotl ), b3 );
// Lambert * LightColor[0] * Diffuse Texture;
r2 = imulFix (imulFix_simple( r3, ndotl ), r0 );
g2 = imulFix (imulFix_simple( g3, ndotl ), g0 );
b2 = imulFix (imulFix_simple( b3, ndotl ), b0 );
/*
// heightmap: (1 - neu ) + alt - 0.5, on_minus_srcalpha + add signed
// emboss bump map
a4 -= a1;
r2 = clampfix_maxcolor ( clampfix_mincolor ( imulFix ( r0 + a4, r3 ) ) );
g2 = clampfix_maxcolor ( clampfix_mincolor ( imulFix ( g0 + a4, g3 ) ) );
b2 = clampfix_maxcolor ( clampfix_mincolor ( imulFix ( b0 + a4, b3 ) ) );
*/
//vertex alpha blend ( and omit depthwrite ,hacky..)
if (a3 + 2 < FIX_POINT_ONE)
{