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Fix diagonal slashes in text

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This commit is contained in:
Bradley Austin Davis 2015-08-04 17:15:53 -07:00
parent 8dfe129da3
commit fc5ec22810
1 changed files with 14 additions and 3 deletions

17
libraries/render-utils/src/text/Font.cpp
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@ -303,12 +303,23 @@ void Font::rebuildVertices(float x, float y, const QString& str, const glm::vec2
// NOTE: Random guy on the internet's recommended triangle slices
// Triangle tri1 = { v0, v1, v2 };
// Triangle tri2 = { v2, v3, v0 };
// The problem here being that the 4 vertices are { ll, lr, ul, ur }, a Z pattern
// Additionally, you want to ensure that the shared side vertices are used sequentially
// to improve cache locality
//
// 2 -- 3
// | |
// | |
// 0 -- 1
//
// { 0, 1, 2 } -> { 2, 1, 3 }
quint16 indices[NUMBER_OF_INDICES_PER_QUAD];
indices[0] = verticesOffset + 0;
indices[1] = verticesOffset + 1;
indices[2] = verticesOffset + 3;
indices[3] = verticesOffset + 1;
indices[4] = verticesOffset + 2;
indices[2] = verticesOffset + 2;
indices[3] = verticesOffset + 2;
indices[4] = verticesOffset + 1;
indices[5] = verticesOffset + 3;
_indicesBuffer->append(sizeof(indices), (const gpu::Byte*)indices);
_numIndices += NUMBER_OF_INDICES_PER_QUAD;