Mercurial > games > semicongine
annotate semiconginev2/text.nim @ 1249:d83726af7abb
did: first triangles getting loaded from gltf
| author | sam <sam@basx.dev> |
|---|---|
| date | Thu, 25 Jul 2024 22:41:24 +0700 |
| parents | a0ed1a918fda |
| children |
| rev | line source |
|---|---|
| 1234 | 1 const |
| 2 NEWLINE = Rune('\n') | |
| 3 SPACE = Rune(' ') | |
| 4 | |
| 5 type | |
| 6 GlyphInfo* = object | |
| 7 uvs*: array[4, Vec2f] | |
| 8 dimension*: Vec2f | |
| 9 topOffset*: float32 | |
| 10 leftOffset*: float32 | |
| 11 advance*: float32 | |
| 12 FontObj* = object | |
| 13 name*: string | |
| 14 glyphs*: Table[Rune, GlyphInfo] | |
| 15 fontAtlas*: Image[Gray] | |
| 16 maxHeight*: int | |
| 17 kerning*: Table[(Rune, Rune), float32] | |
| 18 fontscale*: float32 | |
| 19 lineHeight*: float32 | |
| 20 lineAdvance*: float32 | |
| 21 capHeight*: float32 | |
| 22 xHeight*: float32 | |
| 23 Font = ref FontObj | |
| 24 | |
| 25 TextboxData = object | |
| 26 color: Vec4f | |
| 27 position: Vec3f | |
| 28 scale: float32 | |
| 1236 | 29 aspectratio: float32 |
| 1234 | 30 TextboxDescriptorSet = object |
| 31 textbox: GPUValue[TextboxData, UniformBufferMapped] | |
| 32 fontAtlas: Image[Gray] | |
| 33 | |
| 34 DefaultFontShader* = object | |
| 35 position {.VertexAttribute.}: Vec3f | |
| 36 uv {.VertexAttribute.}: Vec2f # TODO: maybe we can keep the uvs in a uniform buffer and just pass an index | |
| 37 fragmentUv {.Pass.}: Vec2f | |
| 38 color {.ShaderOutput.}: Vec4f | |
| 39 descriptorSets {.DescriptorSets.}: (TextboxDescriptorSet, ) | |
| 1236 | 40 vertexCode = """void main() { |
| 41 gl_Position = vec4(position * vec3(1, textbox.aspectratio, 1) * textbox.scale + textbox.position, 1.0); | |
| 1234 | 42 fragmentUv = uv; |
| 1236 | 43 } """ |
| 44 fragmentCode = """void main() { | |
|
1241
a0ed1a918fda
fix: letters sometimes overlapping other letters quad
sam <sam@basx.dev>
parents:
1236
diff
changeset
|
45 float v = texture(fontAtlas, fragmentUv).r; |
|
a0ed1a918fda
fix: letters sometimes overlapping other letters quad
sam <sam@basx.dev>
parents:
1236
diff
changeset
|
46 if(v == 0) { |
|
a0ed1a918fda
fix: letters sometimes overlapping other letters quad
sam <sam@basx.dev>
parents:
1236
diff
changeset
|
47 discard; |
|
a0ed1a918fda
fix: letters sometimes overlapping other letters quad
sam <sam@basx.dev>
parents:
1236
diff
changeset
|
48 } |
|
a0ed1a918fda
fix: letters sometimes overlapping other letters quad
sam <sam@basx.dev>
parents:
1236
diff
changeset
|
49 color = vec4(textbox.color.rgb, textbox.color.a * v); |
| 1236 | 50 }""" |
| 1234 | 51 |
| 52 | |
| 53 include ./text/font | |
| 54 include ./text/textbox |