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FlipY texture flag, display world texture atlas

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This commit is contained in:
Edgaru089
2022-02-16 00:29:34 +08:00
parent 326253a73b
commit 565e0390f3
6 changed files with 86 additions and 17 deletions
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1
internal/igwrap/backend/shader.frag
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@ -8,6 +8,7 @@
#define FLAG_LINEAR (1<<4)
#define FLAG_IMGUI_FONT (1<<5)
#define FLAG_FLIP_Y (1<<6)
uniform sampler2D tex;
uniform int flags;

14
internal/igwrap/backend/shader.vert
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@ -1,6 +1,17 @@
#version 330
#define FLAG_RED (1<<0)
#define FLAG_GREEN (1<<1)
#define FLAG_BLUE (1<<2)
#define FLAG_ALPHA (1<<3)
#define FLAG_COLORS (FLAG_RED | FLAG_GREEN | FLAG_BLUE | FLAG_ALPHA)
#define FLAG_LINEAR (1<<4)
#define FLAG_IMGUI_FONT (1<<5)
#define FLAG_FLIP_Y (1<<6)
uniform mat4 projection;
uniform int flags;
in vec2 pos;
in vec2 uv;
@ -13,5 +24,8 @@ void main() {
fragUV = uv;
fragColor = color;
gl_Position = projection * vec4(pos.xy, 0, 1);
if ((flags & FLAG_FLIP_Y) != 0)
fragUV.y = 1 - fragUV.y;
}