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Differential D6296 Diff 20005 source/blender/draw/engines/overlay/shaders/paint_weight_frag.glsl

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source/blender/draw/engines/overlay/shaders/paint_weight_frag.glsl

  • This file was moved from source/blender/draw/modes/shaders/paint_weight_frag.glsl.
in vec2 weight_interp; /* (weight, alert) */ in vec2 weight_interp; /* (weight, alert) */
out vec4 fragColor; out vec4 fragColor;
uniform float opacity = 1.0; uniform float opacity = 1.0;
uniform sampler1D colorramp; uniform sampler1D colorramp;
uniform bool useAlphaBlend = false;
uniform bool drawContours = false; uniform bool drawContours = false;
float contours(float value, float steps, float width_px, float max_rel_width, float gradient) float contours(float value, float steps, float width_px, float max_rel_width, float gradient)
{ {
/* Minimum visible and minimum full strength line width in screen space for fade out. */ /* Minimum visible and minimum full strength line width in screen space for fade out. */
const float min_width_px = 1.3, fade_width_px = 2.3; const float min_width_px = 1.3, fade_width_px = 2.3;
/* Line is thinner towards the increase in the weight gradient by this factor. */ /* Line is thinner towards the increase in the weight gradient by this factor. */
const float hi_bias = 2.0; const float hi_bias = 2.0;
▲ Show 20 Lines • Show All 73 Lines • ▼ Show 20 Lines if (drawContours) {
weight_color = grid + weight_color * (1 - grid.a); weight_color = grid + weight_color * (1 - grid.a);
} }
/* Zero weight alert color. Nonlinear blend to reduce impact. */ /* Zero weight alert color. Nonlinear blend to reduce impact. */
color = mix(weight_color, colorVertexUnreferenced, alert * alert); color = mix(weight_color, colorVertexUnreferenced, alert * alert);
} }
#ifdef DRW_STATE_BLEND_ALPHA if (useAlphaBlend) {
/* alpha blending mix */
fragColor = vec4(color.rgb, opacity); fragColor = vec4(color.rgb, opacity);
#else }
else {
/* mix with 1.0 -> is like opacity when using multiply blend mode */ /* mix with 1.0 -> is like opacity when using multiply blend mode */
fragColor = vec4(mix(vec3(1.0), color.rgb, opacity), 1.0); fragColor = vec4(mix(vec3(1.0), color.rgb, opacity), 1.0);
#endif }
} }