Mercurial > games > semicongine

comparison semicongine/text.nim @ 1327:373a4888f6ac

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
did: rework font-rendering
author sam <sam@basx.dev>
date Sat, 17 Aug 2024 13:54:22 +0700
parents 4a1c2b1128bc
children ad09d41abd1e
comparison
equal deleted inserted replaced
1326:41f3612ef38d 1327:373a4888f6ac
41 41
42 TextboxData = object 42 TextboxData = object
43 color: Vec4f 43 color: Vec4f
44 position: Vec3f 44 position: Vec3f
45 scale: float32 45 scale: float32
46 aspectratio: float32
47 TextboxDescriptorSet = object
48 textbox: GPUValue[TextboxData, UniformBufferMapped]
49 fontAtlas: Image[Gray]
50 46
51 DefaultFontShader* = object 47 DefaultFontShader*[T] = object
52 position {.VertexAttribute.}: Vec3f 48 position {.VertexAttribute.}: Vec3f
53 uv {.VertexAttribute.}: Vec2f # TODO: maybe we can keep the uvs in a uniform buffer and just pass an index 49 uv {.VertexAttribute.}: Vec2f # TODO: maybe we can keep the uvs in a uniform buffer and just pass an index
54 fragmentUv {.Pass.}: Vec2f 50 fragmentUv {.Pass.}: Vec2f
55 color {.ShaderOutput.}: Vec4f 51 color {.ShaderOutput.}: Vec4f
56 descriptorSets {.DescriptorSet: 0.}: TextboxDescriptorSet 52 textbox {.PushConstant.}: TextboxData
53 descriptorSets {.DescriptorSet: 0.}: T
57 vertexCode* = """void main() { 54 vertexCode* = """void main() {
58 gl_Position = vec4(position * vec3(1 / textbox.aspectratio, 1, 1) * textbox.scale + textbox.position, 1.0); 55 gl_Position = vec4(position * textbox.scale + textbox.position, 1.0);
59 fragmentUv = uv; 56 fragmentUv = uv;
60 } """ 57 } """
61 fragmentCode* = """void main() { 58 fragmentCode* = """void main() {
62 float v = texture(fontAtlas, fragmentUv).r; 59 float v = texture(fontAtlas, fragmentUv).r;
63 if(v == 0) { 60 if(v == 0) {
64 discard; 61 discard;
65 } 62 }
66 color = vec4(textbox.color.rgb, textbox.color.a * v); 63 color = vec4(textbox.color.rgb, textbox.color.a * v);
67 }""" 64 }"""
68 65
66 proc `=copy`(dest: var FontObj; source: FontObj) {.error.}
69 67
70 include ./text/font 68 include ./text/font
71 include ./text/textbox 69 include ./text/textbox