@deck.gl/extensions/dist/fp64/project64.glsl.js

Plug-and-play functionalities for deck.gl layers

// deck.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
export default `\
const vec2 WORLD_SCALE_FP64 = vec2(81.4873275756836, 0.0000032873668232014097);
uniform project64Uniforms {
vec2 scale;
mat4 viewProjectionMatrix;
mat4 viewProjectionMatrix64Low;
} project64;
void mercatorProject_fp64(vec4 lnglat_fp64, out vec2 out_val[2]) {
#if defined(NVIDIA_FP64_WORKAROUND)
out_val[0] = sum_fp64(radians_fp64(lnglat_fp64.xy), PI_FP64 * ONE);
#else
out_val[0] = sum_fp64(radians_fp64(lnglat_fp64.xy), PI_FP64);
#endif
out_val[1] = sum_fp64(PI_FP64,
log_fp64(tan_fp64(sum_fp64(PI_4_FP64, radians_fp64(lnglat_fp64.zw) / 2.0))));
return;
}
void project_position_fp64(vec4 position_fp64, out vec2 out_val[2]) {
vec2 pos_fp64[2];
mercatorProject_fp64(position_fp64, pos_fp64);
out_val[0] = mul_fp64(pos_fp64[0], WORLD_SCALE_FP64);
out_val[1] = mul_fp64(pos_fp64[1], WORLD_SCALE_FP64);
return;
}
void project_position_fp64(vec2 position, vec2 position64xyLow, out vec2 out_val[2]) {
vec4 position64xy = vec4(
position.x, position64xyLow.x,
position.y, position64xyLow.y);
project_position_fp64(position64xy, out_val);
}
vec4 project_common_position_to_clipspace_fp64(vec2 vertex_pos_modelspace[4]) {
vec2 vertex_pos_clipspace[4];
vec2 viewProjectionMatrixFP64[16];
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
viewProjectionMatrixFP64[4 * i + j] = vec2(
project64.viewProjectionMatrix[j][i],
project64.viewProjectionMatrix64Low[j][i]
);
}
}
mat4_vec4_mul_fp64(viewProjectionMatrixFP64, vertex_pos_modelspace,
vertex_pos_clipspace);
return vec4(
vertex_pos_clipspace[0].x,
vertex_pos_clipspace[1].x,
vertex_pos_clipspace[2].x,
vertex_pos_clipspace[3].x
);
}
vec4 project_position_to_clipspace(
vec3 position, vec3 position64xyLow, vec3 offset, out vec4 commonPosition
) {
vec2 offset64[4];
vec4_fp64(vec4(offset, 0.0), offset64);
float z = project_size(position.z);
vec2 projectedPosition64xy[2];
project_position_fp64(position.xy, position64xyLow.xy, projectedPosition64xy);
vec2 commonPosition64[4];
commonPosition64[0] = sum_fp64(offset64[0], projectedPosition64xy[0]);
commonPosition64[1] = sum_fp64(offset64[1], projectedPosition64xy[1]);
commonPosition64[2] = sum_fp64(offset64[2], vec2(z, 0.0));
commonPosition64[3] = vec2(1.0, 0.0);
commonPosition = vec4(projectedPosition64xy[0].x, projectedPosition64xy[1].x, z, 1.0);
return project_common_position_to_clipspace_fp64(commonPosition64);
}
vec4 project_position_to_clipspace(
vec3 position, vec3 position64xyLow, vec3 offset
) {
vec4 commonPosition;
return project_position_to_clipspace(
position, position64xyLow, offset, commonPosition
);
}
`;
//# sourceMappingURL=project64.glsl.js.map