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examples/renderer/19-affine-textures: Flip coords so SDL logo is right-side up.

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Ryan C. Gordon 2025-03-28 13:52:58 -04:00
parent 3915451058
commit 254f348083
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1 changed files with 3 additions and 3 deletions
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examples/renderer/19-affine-textures/affine-textures.c
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@ -97,9 +97,9 @@ SDL_AppResult SDL_AppIterate(void *appstate)
float corners[16]; float corners[16];
for (int i = 0; i < 8; i++) { for (int i = 0; i < 8; i++) {
const float x = (i & 1) ? 0.5f : -0.5f; const float x = (i & 1) ? -0.5f : 0.5f;
const float y = (i & 2) ? 0.5f : -0.5f; const float y = (i & 2) ? -0.5f : 0.5f;
const float z = (i & 4) ? 0.5f : -0.5f; const float z = (i & 4) ? -0.5f : 0.5f;
corners[0 + 2*i] = mat[0]*x + mat[1]*y + mat[2]*z; corners[0 + 2*i] = mat[0]*x + mat[1]*y + mat[2]*z;
corners[1 + 2*i] = mat[3]*x + mat[4]*y + mat[5]*z; corners[1 + 2*i] = mat[3]*x + mat[4]*y + mat[5]*z;
} }