co-maps/libs/shaders/GL/my_position.vsh.glsl

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2025-11-22 13:58:55 +01:00
layout (location = 0) in vec2 a_normal;
layout (location = 1) in vec2 a_colorTexCoords;
layout (location = 0) out vec2 v_colorTexCoords;
layout (binding = 0) uniform UBO
{
mat4 u_modelView;
mat4 u_projection;
mat4 u_pivotTransform;
vec4 u_position;
vec2 u_lineParams;
float u_accuracy;
float u_zScale;
float u_opacity;
float u_azimut;
};
void main()
{
float sinV = sin(u_azimut);
float cosV = cos(u_azimut);
mat4 rotation;
rotation[0] = vec4(cosV, sinV, 0.0, 0.0);
rotation[1] = vec4(-sinV, cosV, 0.0, 0.0);
rotation[2] = vec4(0.0, 0.0, 1.0, 0.0);
rotation[3] = vec4(0.0, 0.0, 0.0, 1.0);
vec4 pos = vec4(u_position.xyz, 1.0) * u_modelView;
vec4 normal = vec4(a_normal, 0, 0);
vec4 shiftedPos = normal * rotation + pos;
gl_Position = applyPivotTransform(shiftedPos * u_projection, u_pivotTransform, 0.0);
v_colorTexCoords = a_colorTexCoords;
}