williamjcm/small3dlib
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Continue model viewer

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This commit is contained in:
Miloslav Číž 2019-06-07 00:03:21 +02:00
parent 870f012546
commit 76d79ed8b0
1 changed files with 16 additions and 9 deletions
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19
programs/modelViewer.c
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@ -81,6 +81,8 @@ S3L_Unit uv0[2], uv1[2], uv2[2];
uint16_t l0, l1, l2;
S3L_Vec4 toLight;
int8_t light = 1;
void drawPixel(S3L_PixelInfo *p)
{
if (p->triangleIndex != previousTriangle)
@ -153,19 +155,19 @@ void drawPixel(S3L_PixelInfo *p)
uv2[1],
p->barycentric[0], p->barycentric[1], p->barycentric[2]);
int16_t l = S3L_interpolateBarycentric(
l0,
l1,
l2,
p->barycentric[0], p->barycentric[1], p->barycentric[2]);
uint8_t r,g,b;
sampleTexture(uv[0] / 4,uv[1] / 4,&r,&g,&b);
if (light)
{
int16_t l = S3L_interpolateBarycentric(l0,l1,l2,
p->barycentric[0], p->barycentric[1], p->barycentric[2]);
r = S3L_clamp((((int16_t) r) * l) / S3L_FRACTIONS_PER_UNIT,0,255);
g = S3L_clamp((((int16_t) g) * l) / S3L_FRACTIONS_PER_UNIT,0,255);
b = S3L_clamp((((int16_t) b) * l) / S3L_FRACTIONS_PER_UNIT,0,255);
}
setPixel(p->x,p->y,r,g,b);
}
@ -248,6 +250,11 @@ int main()
{
if (event.type == SDL_QUIT)
running = 0;
else if (event.type == SDL_KEYDOWN)
{
if (event.key.keysym.scancode == SDL_SCANCODE_L)
light = !light;
}
}
uint8_t *state = SDL_GetKeyboardState(NULL);