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Add modes

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This commit is contained in:
Miloslav Číž 2019-06-07 12:13:43 +02:00
parent 42d3c2107c
commit 3866947c88
1 changed files with 59 additions and 2 deletions
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61
programs/modelViewer.c
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@ -90,7 +90,7 @@ S3L_Vec4 toLight;
int8_t light = 1;
int8_t fog = 0;
int8_t mode = 0;
S3L_Vec4 n0, n1, n2;
S3L_Vec4 n0, n1, n2, nt;
void drawPixel(S3L_PixelInfo *p)
{
@ -102,6 +102,41 @@ void drawPixel(S3L_PixelInfo *p)
int16_t i1 = uvIndices[index + 1];
int16_t i2 = uvIndices[index + 2];
if (mode == 3)
{
S3L_Vec4 v0, v1, v2;
S3L_Index v = model.triangles[index] * 3;
v0.x = model.vertices[v];
v++;
v0.y = model.vertices[v];
v++;
v0.z = model.vertices[v];
v = model.triangles[index + 1] * 3;
v1.x = model.vertices[v];
v++;
v1.y = model.vertices[v];
v++;
v1.z = model.vertices[v];
v = model.triangles[index + 2] * 3;
v2.x = model.vertices[v];
v++;
v2.y = model.vertices[v];
v++;
v2.z = model.vertices[v];
S3L_triangleNormal(v0,v1,v2,&nt);
nt.x = S3L_clamp(128 + nt.x / 4,0,255);
nt.y = S3L_clamp(128 + nt.y / 4,0,255);
nt.z = S3L_clamp(128 + nt.z / 4,0,255);
}
index = i0 * 2;
uv0[0] = uvs[index];
@ -176,7 +211,7 @@ void drawPixel(S3L_PixelInfo *p)
break;
}
case 2: // normal mode
case 2: // smooth normal mode
{
S3L_Vec4 n;
@ -194,6 +229,24 @@ void drawPixel(S3L_PixelInfo *p)
r = S3L_clamp(128 + n.x / 4,0,255);
g = S3L_clamp(128 + n.y / 4,0,255);
b = S3L_clamp(128 + n.z / 4,0,255);
break;
}
case 3: // non-smooth normal mode
{
r = nt.x;
g = nt.y;
b = nt.z;
break;
}
case 4: // barycentric mode
{
r = p->barycentric[0] >> 1;
g = p->barycentric[1] >> 1;
b = p->barycentric[2] >> 1;
break;
}
default:
@ -376,6 +429,10 @@ int main()
mode = 1;
else if (state[SDL_SCANCODE_KP_2])
mode = 2;
else if (state[SDL_SCANCODE_KP_3])
mode = 3;
else if (state[SDL_SCANCODE_KP_4])
mode = 4;
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer,textureSDL,NULL,NULL);