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comparison semiconginev2/core/matrix.nim @ 1257:e9b8d87b9883

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fix: super stupid bug in perspective matrix X(
author sam <sam@basx.dev>
date Sun, 28 Jul 2024 18:55:46 +0700
parents b0f4c8ccd49a
children
comparison
equal deleted inserted replaced
1256:bfb75c934f4e 1257:e9b8d87b9883
442 makeRandomMatrixInit(TMat34) 442 makeRandomMatrixInit(TMat34)
443 makeRandomMatrixInit(TMat43) 443 makeRandomMatrixInit(TMat43)
444 makeRandomMatrixInit(TMat4) 444 makeRandomMatrixInit(TMat4)
445 445
446 func Perspective*(fovy, aspect, zNear, zFar: float32): Mat4 = 446 func Perspective*(fovy, aspect, zNear, zFar: float32): Mat4 =
447 let tanHalfFovy = tan(fovy / 2) 447 let tanHalfFovy = 1 / tan(fovy / 2)
448 return Mat4(data: [ 448 return Mat4(data: [
449 1 / (aspect * tanHalfFovy), 0, 0, 0, 449 tanHalfFovy / aspect, 0, 0, 0,
450 0, 1 / tanHalfFovy, 0, 0, 450 0, tanHalfFovy, 0, 0,
451 0, 0, zFar / (zFar - zNear), -(zFar * zNear) / (zFar - zNear), 451 0, 0, zFar / (zFar - zNear), -(zFar * zNear) / (zFar - zNear),
452 0, 0, 1, 1, 452 0, 0, 1, 0,
453 ]) 453 ])
454 454
455 func Ortho*(left, right, top, bottom, zNear, zFar: float32): Mat4 = 455 func Ortho*(left, right, top, bottom, zNear, zFar: float32): Mat4 =
456 Mat4(data: [ 456 Mat4(data: [
457 2 / (right - left), 0, 0, -(right + left) / (right - left), 457 2 / (right - left), 0, 0, -(right + left) / (right - left),