forked from enlightenment/efl
evas-3D: primitives: cone is standardized now (normalized and z is an axis of symmetry)
Summary: {F13944} Test Plan: D2248 gives app for testing. Reviewers: cedric, Hermet, raster, Sergeant_Whitespace Reviewed By: Sergeant_Whitespace Subscribers: Sergeant_Whitespace, cedric Differential Revision: https://phab.enlightenment.org/D2251
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@ -455,13 +455,15 @@ void
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evas_3d_add_cone_frame(Eo *mesh, int frame, int p, vec2 tex_scale)
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{
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int vcount, icount, vccount, i;
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double dfi, fi, sinfi, cosfi;
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double dfi, fi, sinfi, cosfi, nplane, nz;
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icount = p * 6;
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vccount = p + 1;
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vcount = 2 * vccount;
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dfi = 2.0 * M_PI / p;
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nz = sqrt(1.0 / 3.0);
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nplane = sqrt(2.0 / 3.0);
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ALLOCATE_VERTEX_DATA
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@ -470,20 +472,20 @@ evas_3d_add_cone_frame(Eo *mesh, int frame, int p, vec2 tex_scale)
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fi = i * dfi;
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sinfi = sin(fi);
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cosfi = cos(fi);
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vertices[i].x = sinfi;
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vertices[i].y = 0;
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vertices[i].z = cosfi;
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vertices[i].x = sinfi / 2.0;
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vertices[i].y = cosfi / 2.0;
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vertices[i].z = -0.5;
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vertices[i + vccount].x = 0;
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vertices[i + vccount].y = 1;
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vertices[i + vccount].z = 0;
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vertices[i + vccount].y = 0;
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vertices[i + vccount].z = 0.5;
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normals[i + vccount].x = normals[i].x = sinfi * 0.71;
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normals[i + vccount].y = normals[i].y = 0.71;
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normals[i + vccount].z = normals[i].z = cosfi * 0.71;
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normals[i + vccount].x = normals[i].x = sinfi * nplane;
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normals[i + vccount].y = normals[i].y = cosfi * nplane;
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normals[i + vccount].z = normals[i].z = nz;
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tangents[i + vccount].x = tangents[i].x = cosfi;
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tangents[i + vccount].y = tangents[i].y = 0;
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tangents[i + vccount].z = tangents[i].z = -sinfi;
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tangents[i + vccount].y = tangents[i].y = -sinfi;
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tangents[i + vccount].z = tangents[i].z = 0;
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tex_coord[i].x = i / (float)(vccount - 1) * tex_scale.x;
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tex_coord[i].y = 0;
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