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graphicsdriver/metal: Simplify the projection matrix

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This commit is contained in:
Hajime Hoshi 2020-05-08 05:06:09 +09:00
parent ce965077d8
commit 7068eb9284
1 changed files with 7 additions and 3 deletions
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10
internal/graphicsdriver/metal/graphics.go
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@ -76,15 +76,19 @@ vertex VertexOut VertexShader(
) {
float4x4 projectionMatrix = float4x4(
float4(2.0 / viewport_size.x, 0, 0, 0),
float4(0, -2.0 / viewport_size.y, 0, 0),
float4(0, 2.0 / viewport_size.y, 0, 0),
float4(0, 0, 1, 0),
float4(-1, 1, 0, 1)
float4(-1, -1, 0, 1)
);
VertexIn in = vertices[vid];
// TODO: Is this a correct fix?
float4 pos = projectionMatrix * float4(in.position, 0, 1);
pos.y = -pos.y;
VertexOut out = {
.position = projectionMatrix * float4(in.position, 0, 1),
.position = pos,
.tex = in.tex,
.tex_region = in.tex_region,
.color = in.color,