- int i;
- vec3_t point, matrix_x, matrix_y, matrix_z;
- float *av, *avn;
- av = aliasvert;
- avn = aliasvertnorm;
- VectorScale(softwaretransform_x, softwaretransform_scale, matrix_x);
- VectorScale(softwaretransform_y, softwaretransform_scale, matrix_y);
- VectorScale(softwaretransform_z, softwaretransform_scale, matrix_z);
- if (lerp < 0) lerp = 0;
- if (lerp > 1) lerp = 1;
- if (lerp != 0)
- {
- float ilerp, ilerp127, lerp127, scalex1, scalex2, translatex, scaley1, scaley2, translatey, scalez1, scalez2, translatez;
- if (lerp < 0) lerp = 0;
- if (lerp > 1) lerp = 1;
- ilerp = 1 - lerp;
- ilerp127 = ilerp * (1.0 / 127.0);
- lerp127 = lerp * (1.0 / 127.0);
- // calculate combined interpolation variables
- scalex1 = scale1[0] * ilerp;scalex2 = scale2[0] * lerp;translatex = translate1[0] * ilerp + translate2[0] * lerp;
- scaley1 = scale1[1] * ilerp;scaley2 = scale2[1] * lerp;translatey = translate1[1] * ilerp + translate2[1] * lerp;
- scalez1 = scale1[2] * ilerp;scalez2 = scale2[2] * lerp;translatez = translate1[2] * ilerp + translate2[2] * lerp;
- // generate vertices
- for (i = 0;i < vertcount;i++)
- {
- // rotate, scale, and translate the vertex locations
- point[0] = verts1->v[0] * scalex1 + verts2->v[0] * scalex2 + translatex;
- point[1] = verts1->v[1] * scaley1 + verts2->v[1] * scaley2 + translatey;
- point[2] = verts1->v[2] * scalez1 + verts2->v[2] * scalez2 + translatez;
- *av++ = point[0] * matrix_x[0] + point[1] * matrix_y[0] + point[2] * matrix_z[0] + softwaretransform_offset[0];
- *av++ = point[0] * matrix_x[1] + point[1] * matrix_y[1] + point[2] * matrix_z[1] + softwaretransform_offset[1];
- *av++ = point[0] * matrix_x[2] + point[1] * matrix_y[2] + point[2] * matrix_z[2] + softwaretransform_offset[2];
- // rotate the normals
- point[0] = verts1->n[0] * ilerp127 + verts2->n[0] * lerp127;
- point[1] = verts1->n[1] * ilerp127 + verts2->n[1] * lerp127;
- point[2] = verts1->n[2] * ilerp127 + verts2->n[2] * lerp127;
- *avn++ = point[0] * softwaretransform_x[0] + point[1] * softwaretransform_y[0] + point[2] * softwaretransform_z[0];
- *avn++ = point[0] * softwaretransform_x[1] + point[1] * softwaretransform_y[1] + point[2] * softwaretransform_z[1];
- *avn++ = point[0] * softwaretransform_x[2] + point[1] * softwaretransform_y[2] + point[2] * softwaretransform_z[2];
- verts1++;verts2++;
- }
- }
- else
- {
- // generate vertices
- for (i = 0;i < vertcount;i++)
- {
- // rotate, scale, and translate the vertex locations
- point[0] = verts1->v[0] * scale1[0] + translate1[0];
- point[1] = verts1->v[1] * scale1[1] + translate1[1];
- point[2] = verts1->v[2] * scale1[2] + translate1[2];
- *av++ = point[0] * matrix_x[0] + point[1] * matrix_y[0] + point[2] * matrix_z[0] + softwaretransform_offset[0];
- *av++ = point[0] * matrix_x[1] + point[1] * matrix_y[1] + point[2] * matrix_z[1] + softwaretransform_offset[1];
- *av++ = point[0] * matrix_x[2] + point[1] * matrix_y[2] + point[2] * matrix_z[2] + softwaretransform_offset[2];
- // rotate the normals
- point[0] = verts1->n[0] * (1.0f / 127.0f);
- point[1] = verts1->n[1] * (1.0f / 127.0f);
- point[2] = verts1->n[2] * (1.0f / 127.0f);
- *avn++ = point[0] * softwaretransform_x[0] + point[1] * softwaretransform_y[0] + point[2] * softwaretransform_z[0];
- *avn++ = point[0] * softwaretransform_x[1] + point[1] * softwaretransform_y[1] + point[2] * softwaretransform_z[1];
- *avn++ = point[0] * softwaretransform_x[2] + point[1] * softwaretransform_y[2] + point[2] * softwaretransform_z[2];
- verts1++;
- }
- }