d90a2b0ab7
Additional mat3 constructors added, global variable namespace collisions for uniform and object color avoided via re-name. Metal vertex format compatibility added for shaders wherein vertex data goes through a double-conversion and cannot be implicitly converted during Metal vertex assembly e.g. bitmasks passed directly as unsigned type in shader interface for certain shader interfaces. Authored by Apple: Michael Parkin-White Ref T96261 Reviewed By: fclem Differential Revision: https://developer.blender.org/D16433
82 lines
2.3 KiB
GLSL
82 lines
2.3 KiB
GLSL
|
|
/* Values in GPU_shader.h. */
|
|
#define GPU_KEYFRAME_SHAPE_DIAMOND (1u << 0)
|
|
#define GPU_KEYFRAME_SHAPE_CIRCLE (1u << 1)
|
|
#define GPU_KEYFRAME_SHAPE_CLIPPED_VERTICAL (1u << 2)
|
|
#define GPU_KEYFRAME_SHAPE_CLIPPED_HORIZONTAL (1u << 3)
|
|
#define GPU_KEYFRAME_SHAPE_INNER_DOT (1u << 4)
|
|
#define GPU_KEYFRAME_SHAPE_ARROW_END_MAX (1u << 8)
|
|
#define GPU_KEYFRAME_SHAPE_ARROW_END_MIN (1u << 9)
|
|
#define GPU_KEYFRAME_SHAPE_ARROW_END_MIXED (1u << 10)
|
|
#define GPU_KEYFRAME_SHAPE_SQUARE \
|
|
(GPU_KEYFRAME_SHAPE_CLIPPED_VERTICAL | GPU_KEYFRAME_SHAPE_CLIPPED_HORIZONTAL)
|
|
|
|
const float line_falloff = 1.0;
|
|
const float circle_scale = sqrt(2.0 / 3.1416);
|
|
const float square_scale = sqrt(0.5);
|
|
const float diagonal_scale = sqrt(0.5);
|
|
|
|
bool test(uint bit)
|
|
{
|
|
return (flags & bit) != 0u;
|
|
}
|
|
|
|
vec2 line_thresholds(float width)
|
|
{
|
|
return vec2(max(0.0, width - line_falloff), width);
|
|
}
|
|
|
|
void main()
|
|
{
|
|
gl_Position = ModelViewProjectionMatrix * vec4(pos, 0.0, 1.0);
|
|
|
|
/* Align to pixel grid if the viewport size is known. */
|
|
if (ViewportSize.x > 0) {
|
|
vec2 scale = ViewportSize * 0.5;
|
|
vec2 px_pos = (gl_Position.xy + 1) * scale;
|
|
vec2 adj_pos = round(px_pos - 0.5) + 0.5;
|
|
gl_Position.xy = adj_pos / scale - 1;
|
|
}
|
|
|
|
/* Pass through parameters. */
|
|
finalColor = color;
|
|
finalOutlineColor = outlineColor;
|
|
finalFlags = flags;
|
|
|
|
if (!test(GPU_KEYFRAME_SHAPE_DIAMOND | GPU_KEYFRAME_SHAPE_CIRCLE |
|
|
GPU_KEYFRAME_SHAPE_CLIPPED_VERTICAL | GPU_KEYFRAME_SHAPE_CLIPPED_HORIZONTAL)) {
|
|
finalFlags |= GPU_KEYFRAME_SHAPE_DIAMOND;
|
|
}
|
|
|
|
/* Size-dependent line thickness. */
|
|
float half_width = (0.06 + (size - 10) * 0.04);
|
|
float line_width = half_width + line_falloff;
|
|
|
|
/* Outline thresholds. */
|
|
thresholds.xy = line_thresholds(line_width * outline_scale);
|
|
|
|
/* Inner dot thresholds. */
|
|
thresholds.zw = line_thresholds(line_width * 1.6);
|
|
|
|
/* Extend the primitive size by half line width on either side; odd for symmetry. */
|
|
float ext_radius = round(0.5 * size) + thresholds.x;
|
|
|
|
gl_PointSize = ceil(ext_radius + thresholds.y) * 2 + 1;
|
|
|
|
/* Diamond radius. */
|
|
radii[0] = ext_radius * diagonal_scale;
|
|
|
|
/* Circle radius. */
|
|
radii[1] = ext_radius * circle_scale;
|
|
|
|
/* Square radius. */
|
|
radii[2] = round(ext_radius * square_scale);
|
|
|
|
/* Min/max cutout offset. */
|
|
radii[3] = -line_falloff;
|
|
|
|
/* Convert to PointCoord units. */
|
|
radii /= gl_PointSize;
|
|
thresholds /= gl_PointSize;
|
|
}
|