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hng64 : Bugfix for polynew conversion - fixed writing to the z-buffer in the

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wrong spot.
This commit is contained in:
Andrew Gardner 2015-09-11 10:23:33 +02:00
parent 3b06958425
commit 4cb6b31183
1 changed files with 5 additions and 7 deletions
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12
src/mame/video/hng64_3d.c
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@ -1029,10 +1029,10 @@ void hng64_state::matmul4(float *product, const float *a, const float *b)
/* vector by 4x4 matrix multiply */ /* vector by 4x4 matrix multiply */
void hng64_state::vecmatmul4(float *product, const float *a, const float *b) void hng64_state::vecmatmul4(float *product, const float *a, const float *b)
{ {
const float bi0 = b[0]; const float& bi0 = b[0];
const float bi1 = b[1]; const float& bi1 = b[1];
const float bi2 = b[2]; const float& bi2 = b[2];
const float bi3 = b[3]; const float& bi3 = b[3];
product[0] = bi0 * a[0] + bi1 * a[4] + bi2 * a[8 ] + bi3 * a[12]; product[0] = bi0 * a[0] + bi1 * a[4] + bi2 * a[8 ] + bi3 * a[12];
product[1] = bi0 * a[1] + bi1 * a[5] + bi2 * a[9 ] + bi3 * a[13]; product[1] = bi0 * a[1] + bi1 * a[5] + bi2 * a[9 ] + bi3 * a[13];
@ -1247,9 +1247,6 @@ void hng64_poly_renderer::render_scanline(INT32 scanline, const extent_t& extent
{ {
if (z < *depthBuffer) if (z < *depthBuffer)
{ {
// Translucency currently isn't an issue, so soldier on
*depthBuffer = z;
// Multiply back through by w for everything that was interpolated perspective-correctly // Multiply back through by w for everything that was interpolated perspective-correctly
const float sCorrect = s / w; const float sCorrect = s / w;
const float tCorrect = t / w; const float tCorrect = t / w;
@ -1336,6 +1333,7 @@ void hng64_poly_renderer::render_scanline(INT32 scanline, const extent_t& extent
color = rgb_t(255, (UINT8)red, (UINT8)green, (UINT8)blue); color = rgb_t(255, (UINT8)red, (UINT8)green, (UINT8)blue);
*colorBuffer = color; *colorBuffer = color;
*depthBuffer = z;
} }
} }
} }