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Removed GLEW dependency (using GLAD instead), axes now use shader, should now work better

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Shweet
2025-09-05 16:37:45 -04:00
parent fa6109cb2e
commit a992661c6a
16 changed files with 25215 additions and 51 deletions
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42
src/PACKED.h
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@@ -217,6 +217,7 @@ enum ShaderType
{
SHADER_LINE,
SHADER_TEXTURE,
SHADER_AXIS,
SHADER_GRID,
SHADER_COUNT
};
@@ -234,6 +235,33 @@ void main()
}
)";
const std::string SHADER_AXIS_VERTEX = R"(
#version 330 core
layout (location = 0) in vec2 i_position; // full screen line segment: -1..1
uniform vec2 u_origin_ndc; // world origin in NDC
uniform int u_axis; // 0 = X axis, 1 = Y axis
void main()
{
vec2 pos = (u_axis == 0)
? vec2(i_position.x, u_origin_ndc.y) // horizontal line across screen
: vec2(u_origin_ndc.x, i_position.x); // vertical line across screen;
gl_Position = vec4(pos, 0.0, 1.0);
}
)";
const std::string SHADER_GRID_VERTEX = R"(
#version 330 core
layout ( location = 0 ) in vec2 i_position;
out vec2 clip;
void main() {
clip = i_position;
gl_Position = vec4(i_position, 0.0, 1.0);
}
)";
const std::string SHADER_FRAGMENT = R"(
#version 330 core
out vec4 o_fragColor;
@@ -260,17 +288,6 @@ void main()
}
)";
const std::string SHADER_GRID_VERTEX = R"(
#version 330 core
layout ( location = 0 ) in vec2 i_position;
out vec2 clip;
void main() {
clip = i_position;
gl_Position = vec4(i_position, 0.0, 1.0);
}
)";
const std::string SHADER_GRID_FRAGMENT = R"(
#version 330 core
in vec2 clip;
@@ -301,11 +318,13 @@ void main()
}
)";
#define SHADER_UNIFORM_AXIS "u_axis"
#define SHADER_UNIFORM_COLOR "u_color"
#define SHADER_UNIFORM_TRANSFORM "u_transform"
#define SHADER_UNIFORM_TINT "u_tint"
#define SHADER_UNIFORM_COLOR_OFFSET "u_color_offset"
#define SHADER_UNIFORM_OFFSET "u_offset"
#define SHADER_UNIFORM_ORIGIN_NDC "u_origin_ndc"
#define SHADER_UNIFORM_SIZE "u_size"
#define SHADER_UNIFORM_MODEL "u_model"
#define SHADER_UNIFORM_TEXTURE "u_texture"
@@ -314,5 +333,6 @@ const ShaderData SHADER_DATA[SHADER_COUNT] =
{
{SHADER_VERTEX, SHADER_FRAGMENT},
{SHADER_VERTEX, SHADER_TEXTURE_FRAGMENT},
{SHADER_AXIS_VERTEX, SHADER_FRAGMENT},
{SHADER_GRID_VERTEX, SHADER_GRID_FRAGMENT}
};